From owner-diy_efi-archive Sun Oct 1 19:11:07 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id SAA22667; Sun, 1 Oct 1995 18:56:30 GMT Return-Path: Received: from ee.tut.fi by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id OAA22653; Sun, 1 Oct 1995 14:56:26 -0400 Received: (from eppu@localhost) by ee.tut.fi (8.6.10/8.6.9) id UAA12987 for DIY_EFI@coulomb.eng.ohio-state.edu; Sun, 1 Oct 1995 20:56:11 +0200 Message-Id: <199510011856.UAA12987@ee.tut.fi> Subject: Re: [Q] EFI computers on different engines To: DIY_EFI Date: Sun, 1 Oct 1995 20:56:10 +0200 (EET) In-Reply-To: <199509280312.NAA07154@shiva.trl.OZ.AU> from "Craig Pugsley" at Sep 28, 95 01:12:55 pm From: Jari Porhio X-Mailer: ELM [version 2.4 PL23] MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Content-Length: 373 Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Craig wrote: > Yes, it's operation is virtually identical to an L jet. I got a generic The page http://proffa.cc.tut.fi/~k124775/ describes the guts of one L-Jetronic box (actually the second, the first one got electrocuted...). ____________________________________________________________________________ Jari Porhio eppu@cc.tut.fi : No offence :) From owner-diy_efi-archive Sun Oct 1 20:24:47 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id UAA22807; Sun, 1 Oct 1995 20:19:52 GMT Return-Path: Received: from travelers.mail.cornell.edu by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id QAA22793; Sun, 1 Oct 1995 16:19:50 -0400 Received: from travelers.mail.cornell.edu (TRAVELERS.MAIL.CORNELL.EDU [132.236.56.13]) by travelers.mail.cornell.edu (8.6.9/8.6.9) with SMTP id QAA27332 for ; Sun, 1 Oct 1995 16:19:37 -0400 Date: Sun, 1 Oct 1995 16:17:22 -0400 (EDT) From: Daniel Harry Elsberg Subject: Re: Modifying O2 output To: DIY_EFI In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu > > > >>From a WWW page about O2 sensors, I got the following information: > > With so many replies and quotes, I don't even know who wrote this in the first place, bu I have been looking for this homepage and have not for the life of me been able to find it. Can someone post the address for it, and maybe add it to the resources or www pages portion of the DIY_EFI page. Thanks, dan From owner-diy_efi-archive Sun Oct 1 20:26:26 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id UAA22830; Sun, 1 Oct 1995 20:24:57 GMT Return-Path: Received: from utarlg.uta.edu by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id QAA22816; Sun, 1 Oct 1995 16:24:52 -0400 Received: from UTARLG.UTA.EDU by UTARLG.UTA.EDU (PMDF V5.0-4 #8453) id <01HVXILZ9P0W9KNQOG@UTARLG.UTA.EDU> for DIY_EFI@coulomb.eng.ohio-state.edu; Sun, 01 Oct 1995 15:24:34 -0500 (CDT) Date: Sun, 01 Oct 1995 15:24:34 -0500 (CDT) From: rlr2852@UTARLG.UTA.EDU Subject: Re: injector sizing In-reply-to: <199510010325.UAA20954@cato.verity.com> To: DIY_EFI Message-id: MIME-version: 1.0 Content-type: TEXT/PLAIN; charset=US-ASCII Content-transfer-encoding: 7BIT Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu On Sat, 30 Sep 1995, Neville Newman wrote: > Thanks for the correction. i'm in California, and everything > the other side of the Sierras is all the same to us !! Funny you should see us that way....everything WEST of the Sierras is the same to us! Rob Rowton University of Texas at Arlington From owner-diy_efi-archive Mon Oct 2 00:53:00 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id AAA23142; Mon, 2 Oct 1995 00:45:19 GMT Return-Path: Received: from mail.telstra.com.au by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id UAA23128; Sun, 1 Oct 1995 20:45:08 -0400 Received: from mail_gw.fwall.telecom.com.au(192.148.147.10) by mail via smap (V1.3) id sma001378; Mon Oct 2 10:43:56 1995 Received: from shiva.trl.oz.au(137.147.20.34) by mail_gw.telecom.com.au via smap (V1.3) id sma029541; Mon Oct 2 10:43:39 1995 Received: (from pugsley@localhost) by shiva.trl.OZ.AU (8.6.10/8.6.12) id KAA03183 for DIY_EFI@coulomb.eng.ohio-state.edu; Mon, 2 Oct 1995 10:43:35 +1000 From: Craig Pugsley Message-Id: <199510020043.KAA03183@shiva.trl.OZ.AU> Subject: Re: [Q] EFI computers on different engines To: DIY_EFI Date: Mon, 2 Oct 1995 10:43:34 +1000 (EST) In-Reply-To: <199510011856.UAA12987@ee.tut.fi> from "Jari Porhio" at Oct 1, 95 08:56:10 pm X-Mailer: ELM [version 2.4 PL20] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Length: 746 Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu > > Craig wrote: > > > Yes, it's operation is virtually identical to an L jet. I got a generic > > The page http://proffa.cc.tut.fi/~k124775/ describes the guts of one > L-Jetronic box (actually the second, the first one got > electrocuted...). > > ____________________________________________________________________________ > Jari Porhio eppu@cc.tut.fi : No offence :) > I'd like to request that this page be put on the DIY_EFI homepage hotlist (presuming it's OK by the author),as it contains some good info on L jet. Matti Kalahati's page on the toyota 3t-GTEU engine and fuel injection at http://proffa.cc.tut.fi/~k124476/vehicles/3T-GTEfi.html also provides info on this specific setup. Craig. pugsley@trl.oz.au From owner-diy_efi-archive Mon Oct 2 02:03:06 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id BAA23335; Mon, 2 Oct 1995 01:56:07 GMT Return-Path: Received: from devserve.cebaf.gov by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id VAA23321; Sun, 1 Oct 1995 21:56:05 -0400 Message-Id: <199510020156.VAA23321@coulomb.eng.ohio-state.edu> Received: by devserve.cebaf.gov (1.37.109.16/16.2) id AA186878952; Sun, 1 Oct 1995 21:55:52 -0400 From: Bruce Bowling Subject: Re: Ignition Book To: DIY_EFI Date: Sun, 01 Oct 1995 21:55:52 EDT In-Reply-To: ; from "Jonathan R. Lusky" at Sep 30, 95 1:48 am X-Mailer: Elm [revision: 109.14] Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu ~ ~ I'm not sure where the other MSD's die, but I know the 7A i ran a few ~ years ago got flaky as hell at 10V and totally crapped out by 9.5V. ~ ~ -- ~ Jonathan R. Lusky lusky@knuth.mtsu.edu ~ http://www.edge.net/~lusky/ (615) 726-8700 ~ ------------------------------------- ------------------------------ ~ 68 Camaro Convertible - 350 / TH350 \_/ 80 Toyota Celica - 20R / 5spd ~ People I have talked to in the past has also seen the flaky response around the save battery voltage. What I have also been told is that MSD boxes usually don't just "die" - they act screwy instead, like mis-firing, etc. The ONLY plus I give to Jacobs box is a toggle switch (3 position) which can switch you back to normal un-mod mode. The third position kills the ignition. Jocobs could do this because the stock ignition amplifier is retained, the Jacobs box is inserted between the amplifier and the coil. MSD takes over the job of the ignition amp by hooking directly to the reluctor pickup, so this is harder with MSD. - Bruce -- ----------------------------------------------------- <<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ----------------------------------------------------- Bruce A. Bowling Staff Scientist - Instrumentation and Controls The Continuous Electron Beam Accelerator Facility 12000 Jefferson Ave - Newport News, VA 23602 (804) 249-7240 bowling@cebaf.gov http://devserve.cebaf.gov/~bowling ----------------------------------------------------- <<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ----------------------------------------------------- From owner-diy_efi-archive Mon Oct 2 03:41:24 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA23510; Mon, 2 Oct 1995 03:32:43 GMT Return-Path: Received: from knuth.mtsu.edu by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id XAA23496; Sun, 1 Oct 1995 23:32:41 -0400 Received: by knuth.mtsu.edu (Smail3.1.29.1 #14) id m0szbb1-000CwBC; Sun, 1 Oct 95 22:31 CDT Message-Id: From: lusky@knuth.mtsu.edu (Jonathan R. Lusky) Subject: Re: Ignition Book To: DIY_EFI Date: Sun, 1 Oct 1995 22:31:15 -0500 (CDT) In-Reply-To: <199510020156.VAA23321@coulomb.eng.ohio-state.edu> from "Bruce Bowling" at Oct 1, 95 09:55:52 pm X-Mailer: ELM [version 2.4 PL24alpha3] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Length: 1418 Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Bruce Bowling writes: > People I have talked to in the past has also seen the flaky response > around the save battery voltage. What I have also been told is that > MSD boxes usually don't just "die" - they act screwy instead, like > mis-firing, etc. The only time its ever been a problem for me was on a Formula-SAE engine, with way too little battery and a current hungry injection pump. COuldn't even jumpstart the car when the battery got low... > The ONLY plus I give to Jacobs box is a toggle switch (3 position) > which can switch you back to normal un-mod mode. The third position > kills the ignition. Jocobs could do this because the stock ignition > amplifier is retained, the Jacobs box is inserted between the > amplifier and the coil. MSD takes over the job of the ignition > amp by hooking directly to the reluctor pickup, so this is harder > with MSD. You can trigger the MSD off the stock amplifier.. this is how you have to do it with a late model computer controlled HEI and the like. I'd imagine you could do the same type of switch with an MSD when triggering with this method, if you can find a suitable switch. -- Jonathan R. Lusky lusky@knuth.mtsu.edu http://www.edge.net/~lusky/ (615) 726-8700 ------------------------------------- ------------------------------ 68 Camaro Convertible - 350 / TH350 \_/ 80 Toyota Celica - 20R / 5spd From owner-diy_efi-archive Mon Oct 2 08:17:03 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id IAA23876; Mon, 2 Oct 1995 08:08:42 GMT Return-Path: Received: from mbox.ualr.edu by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id EAA23862; Mon, 2 Oct 1995 04:08:38 -0400 Received: from vn-gateway by UALR.EDU (PMDF V4.2-11 #4503) id <01HVY3J9S2MO00008Z@UALR.EDU>; Mon, 2 Oct 1995 01:24:04 CDT Date: Sun, 01 Oct 1995 20:51:00 +0000 From: dave.williams@chaos.lrk.ar.us (Dave Williams) Subject: Re: Ignition Book To: DIY_EFI Message-id: <180649.7.uupcb@chaos.lrk.ar.us> Organization: The Courts of Chaos * Jacksonville AR USA * 501-985-0059 X-Envelope-to: DIY_EFI@coulomb.eng.ohio-state.edu Content-type: TEXT/PLAIN; CHARSET=US-ASCII Content-transfer-encoding: 7BIT Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu -> system that sounds a *LOT* like the new one from SAAB, which uses -> "continuous" resistance measurements over the plug gap to determine -> what to do on the next firing cycle. The TAG engine management systems some F1 teams were using five or six years ago did that, to reduce the spark to the minimum level, much like the Jacobs units claim to do. Jacobs claims too much zap will do evil things to the combustion process, which is dead opposite my own testing with various coils and ignition systems. If I had a long enough extension cord I'd have my arc welder hooked up to the distributor somehow. The only justification I can find for reducing spark energy would be if the plugs had a rather narrow heat range and tended to overheat at high RPM unless power was reduced. It's well known that it's easier to light a spark at high RPM than low RPM, so you could get away with it. I'm not convinced reducing spark energy would cool the plug to make much difference, though. The SAAB Trionic system monitors the resistance across the plug gap to look for detonation. It's much more accurate than the usual piezo sensors, and doesn't require extensive signal filtering. The later Trionics can also determine if a cylinder is running lean by monitoring required spark voltage, and it's also handy for detecting misfire, which is a requirement for OBD-II. From owner-diy_efi-archive Mon Oct 2 14:44:12 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id OAA24465; Mon, 2 Oct 1995 14:36:56 GMT Return-Path: Received: from ra.ibr.cs.tu-bs.de by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id KAA24449; Mon, 2 Oct 1995 10:34:46 -0400 Received: from kastor [134.169.34.8] by ra.ibr.cs.tu-bs.de (8.6.10/tubsibr) with ESMTP id PAA09617 for ; Mon, 2 Oct 1995 15:34:06 +0100 Received: from knick@localhost by kastor.ibr.cs.tu-bs.de (8.6.10/tubsibr) id PAA22169 for DIY_EFI@coulomb.eng.ohio-state.edu; Mon, 2 Oct 1995 15:34:05 +0100 From: Jens Knickmeyer Message-Id: <199510021434.PAA22169@kastor.ibr.cs.tu-bs.de> Subject: Re: Ignition Book To: DIY_EFI Date: Mon, 2 Oct 95 15:34:05 MET In-Reply-To: <199509292127.OAA20171@cato.verity.com> from "Neville Newman" at Sep 29, 95 02:27:44 pm Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu wrote: > > Even more > amazing was the followup shock-factor demonstration, where they fed the > same engine's inlet from the tailpipe of a running SAAB 96? 2-cycle > motor. The output was still within CA-legal emmissions limits. Afaik, it was a Saab 99 (the old "tank" how it is called here). Rest of the message correlates pretty with what I read about it. Really amazing.. Jens. ------------------------------------ Jens Knickmeyer Technische Universitaet Braunschweig Mikroprozessorlabor 38106 Braunschweig near Wolfsburg knick@ibr.cs.tu-bs.de ------------------------------------ From owner-diy_efi-archive Mon Oct 2 15:00:28 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id OAA24507; Mon, 2 Oct 1995 14:53:01 GMT Return-Path: Received: from ra.ibr.cs.tu-bs.de by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id KAA24491; Mon, 2 Oct 1995 10:50:53 -0400 Received: from kastor [134.169.34.8] by ra.ibr.cs.tu-bs.de (8.6.10/tubsibr) with ESMTP id PAA09975 for ; Mon, 2 Oct 1995 15:50:11 +0100 Received: from knick@localhost by kastor.ibr.cs.tu-bs.de (8.6.10/tubsibr) id PAA22464 for DIY_EFI@coulomb.eng.ohio-state.edu; Mon, 2 Oct 1995 15:50:10 +0100 From: Jens Knickmeyer Message-Id: <199510021450.PAA22464@kastor.ibr.cs.tu-bs.de> Subject: O2 sensors - WWW To: DIY_EFI Date: Mon, 2 Oct 95 15:50:09 MET In-Reply-To: from "Daniel Harry Elsberg" at Oct 1, 95 04:17:22 pm Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu wrote: > > > > > > >>From a WWW page about O2 sensors, I got the following information: > > > > With so many replies and quotes, I don't even know who wrote this in the > first place, bu I have been looking for this homepage and have not for the > life of me been able to find it. Can someone post the address for it, and > maybe add it to the resources or www pages portion of the DIY_EFI page. > > Thanks, > dan That was me (see below). The WWW page is http://ram.chem.tulane.edu:8080/f-body/trivia/o2sensor.html I contacted that site a long time ago and do not know if it still works, so please check out before adding a pointer to it on the DIY_EFI page! Jens ------------------------------------ Jens Knickmeyer Technische Universitaet Braunschweig Mikroprozessorlabor 38106 Braunschweig near Wolfsburg knick@ibr.cs.tu-bs.de ------------------------------------ From owner-diy_efi-archive Mon Oct 2 15:24:50 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id PAA24715; Mon, 2 Oct 1995 15:15:31 GMT Return-Path: Received: from cicerone.uunet.ca by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id LAA24701; Mon, 2 Oct 1995 11:15:18 -0400 Received: from gateway.prior.com ([142.77.252.4]) by cicerone.uunet.ca with SMTP id <179989-1>; Mon, 2 Oct 1995 11:15:29 -0400 Received: by gateway.prior.com (4.1/SMI-4.1) id AA02207; Mon, 2 Oct 95 11:07:37 EDT Received: from odin.gallium.com(192.139.238.33) by gateway.gallium.com via smap (V1.3) id sma002201; Mon Oct 2 11:07:17 1995 Received: from ivan.gallium.com by odin.gallium.com (4.1/SMI-4.1) id AA10390; Mon, 2 Oct 95 11:07:22 EDT Received: by ivan.gallium.com (931110.SGI/930416.SGI) for @odin.gallium.com:DIY_EFI@coulomb.eng.ohio-state.edu id AA03503; Mon, 2 Oct 95 11:13:44 -0400 Date: Mon, 2 Oct 1995 11:13:44 -0400 From: MSargent@gallium.com (Michael F. Sargent) Message-Id: <9510021513.AA03503@ivan.gallium.com> To: DIY_EFI Subject: Re: Ignition Book Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu > People I have talked to in the past has also seen the flaky response > around the save battery voltage. What I have also been told is that > MSD boxes usually don't just "die" - they act screwy instead, like > mis-firing, etc. I had the rather unpleasant experiance of killing both batteries in my boat this summer (about 100 miles from home - the voltage regulator had packed it in). They MSD-6M I run worked perfectly, right down to the point where there wasn't enough juice to turn the engine over. Maybe if it had of acted flakey I would have realized something was wrong before it stopped totally. All in all, I'm very happy with the MSD box. It's been in the boat for more than a year now, and works very well. All of the problems I was having (hard cold starts, poor idle when cold, "loading up" when idling) are all gone. Mike +--------------------------------------------------------------------------+ | Michael F. Sargent | Net: msargent@gallium.com | Phone: 1(613)721-0902 | | Gallium Software Inc.| | FAX: 1(613)721-1278 | +--------------------------------------------------------------------------+ From owner-diy_efi-archive Mon Oct 2 15:41:35 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id PAA24906; Mon, 2 Oct 1995 15:36:20 GMT Return-Path: Received: from wotan.compaq.com by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id LAA24892; Mon, 2 Oct 1995 11:36:14 -0400 Received: from twisto by wotan.compaq.com with uucp (Smail3.1.28.1 #12) id m0szmGC-0009uAC; Mon, 2 Oct 95 09:54 CDT Received: from bangate.compaq.com by twisto.eng.hou.compaq.com with smtp (Smail3.1.28.1 #10) id m0szmFG-000uPjC; Mon, 2 Oct 95 09:53 CDT Received: by bangate.compaq.com; Mon, 2 Oct 95 9:53:14 CDT Date: Mon, 2 Oct 95 9:53:11 CDT Message-ID: X-Priority: 3 (Normal) To: From: Subject: re: Re: ALDL Data Stream Decoding Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Martin Evans <100341.377@COMPUSERVE.COM> Wrote: | | On Mon, 18 Sep 95 jwharris@holli.com (J.W. Harris) wrote: | | >I was at a SAE OBDII toptec and found this out about avialability of ALDL | >data information: | | >The final rule for avialability of emission service related information | >is contained in the Federal Register Vol. 60, No. 153, Wednesday, | >Aug., 9 1995. Page 40474. | | >This rule requires manufacturers to make avialable all serivce information | >supplied to dealers at a reasonable cost. | | >There is an online computer system called FedWorld which can be accessed | >up to 3 hours a day at 703-321-3339. This tells what is available, where | >and the cost. It can be also accessed by telneting to fedworld.gov. | | >The Equipment and Tool Institute, 1806 Johns Drive, Glenview, IL 60025-1657 | >708-729-8550, 708-729-3670 (fax) provides a annual forum called the Domestic | >Tech Week where (scan)tool makers meet with the big three to discuss new | >model changes including Class II data stream information. | | Has anyone followed this up and obtained the specs for ALDL or found | out what reasonable cost is? | | Or if it applies to pre OBD-II cars? Diagnostic info and connectors will be the same for all makes and models when OBD-II is implemented, but does this mean that they are going to release the ALDL info for cars built in the 80s up until now? Steve Ravet sravet@bangate.compaq.com Baby you're a genius when it comes to cooking up some chili sauce... From owner-diy_efi-archive Mon Oct 2 17:14:34 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id RAA25315; Mon, 2 Oct 1995 17:08:10 GMT Return-Path: Received: from mail.pilot.net by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id NAA25301; Mon, 2 Oct 1995 13:08:07 -0400 Received: from verity.com (unknown-143-5.verity.com [192.187.143.5]) by mail.pilot.net (8.7/8.7.Beta.12) with SMTP id KAA24634 for ; Mon, 2 Oct 1995 10:07:53 -0700 (PDT) Received: from cato.verity.com by verity.com (4.1/SMI-4.1_Verity-Main-950202) id AA22861; Mon, 2 Oct 95 10:06:52 PDT From: neville@Verity.COM (Neville Newman) Received: (neville@localhost) by cato.verity.com (8.6.12/8.6.12) id KAA21954 for DIY_EFI@coulomb.eng.ohio-state.edu; Mon, 2 Oct 1995 10:07:52 -0700 Date: Mon, 2 Oct 1995 10:07:52 -0700 Message-Id: <199510021707.KAA21954@cato.verity.com> To: DIY_EFI Subject: Re: Ignition Book Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Every 99 i have ever seen is a 4-cylinder 4-stroke. The only 3-cylinder 2-strokes i've seen are 96's . When i lived in Massachusetts, SAABs were everywhere. If you know 99's to have had the 3-cylinder motor, i'd like to find out what years so i can fill in my SAAB "map". If not, perhaps you could post a correction to the list. -neville From owner-diy_efi-archive Mon Oct 2 19:35:22 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id TAA25867; Mon, 2 Oct 1995 19:19:38 GMT Return-Path: Received: from opus.mtu.edu by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id PAA25853; Mon, 2 Oct 1995 15:19:32 -0400 Received: from mtu.edu (root@mtu.edu [141.219.70.1]) by opus.mtu.edu (8.6.10/8.6.10) with ESMTP id PAA06084 for ; Mon, 2 Oct 1995 15:19:17 -0400 Received: from mmserver.mm.mtu.edu (mmserver.mm.mtu.edu [141.219.20.61]) by mtu.edu (8.6.10/8.6.10) with ESMTP id PAA10930 for ; Mon, 2 Oct 1995 15:19:16 -0400 Received: from metlab6.my.mtu.edu (metlab6.my.mtu.edu [141.219.20.86]) by mmserver.mm.mtu.edu (8.6.9/MTU-1.3) with SMTP id PAA24395 for ; Mon, 2 Oct 1995 15:18:45 -0400 From: "Paul E. Campbell" Received: (from pecampbe@localhost) by metlab6.my.mtu.edu (8.6.9/MTU-1.2) id PAA08954 for DIY_EFI@coulomb.eng.ohio-state.edu; Mon, 2 Oct 1995 15:18:46 -0400 Message-Id: <199510021918.PAA08954@metlab6.my.mtu.edu> Subject: Re: Ignition Book To: DIY_EFI Date: Mon, 2 Oct 1995 15:18:44 -0400 (EDT) In-Reply-To: <199509292127.OAA20171@cato.verity.com> from "Neville Newman" at Sep 29, 95 02:27:44 pm MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Length: 686 Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu > If Jacobs really patented this technology, as he seems to claim, then > he'd be shouting from the rooftops that he had licensed it to SAAB. > If he didn't invent it, then i doubt that he could afford to license > it from SAAB. Either way, it leads me to believe that his recent ads > are claiming something which is patently false (pun intended). Jacobs is a tricky bastard. The only thing he patented was the actual physical DESIGN of his ignition system. He didn't put anything about the control system or the sensor capabilities into the patent. I went after the patent specifically BECAUSE I wanted to know how he was using the spark plug as a sensor and was very disappointed. From owner-diy_efi-archive Mon Oct 2 19:35:23 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id TAA25906; Mon, 2 Oct 1995 19:25:06 GMT Return-Path: Received: from opus.mtu.edu by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id PAA25892; Mon, 2 Oct 1995 15:25:03 -0400 Received: from mtu.edu (root@mtu.edu [141.219.70.1]) by opus.mtu.edu (8.6.10/8.6.10) with ESMTP id PAA06331 for ; Mon, 2 Oct 1995 15:24:49 -0400 Received: from mmserver.mm.mtu.edu (mmserver.mm.mtu.edu [141.219.20.61]) by mtu.edu (8.6.10/8.6.10) with ESMTP id PAA11829 for ; Mon, 2 Oct 1995 15:24:46 -0400 Received: from metlab6.my.mtu.edu (metlab6.my.mtu.edu [141.219.20.86]) by mmserver.mm.mtu.edu (8.6.9/MTU-1.3) with SMTP id PAA24455 for ; Mon, 2 Oct 1995 15:24:15 -0400 From: "Paul E. Campbell" Received: (from pecampbe@localhost) by metlab6.my.mtu.edu (8.6.9/MTU-1.2) id PAA08988 for DIY_EFI@coulomb.eng.ohio-state.edu; Mon, 2 Oct 1995 15:24:17 -0400 Message-Id: <199510021924.PAA08988@metlab6.my.mtu.edu> Subject: Re: Ignition Book To: DIY_EFI Date: Mon, 2 Oct 1995 15:24:16 -0400 (EDT) In-Reply-To: <199509291929.PAA17914@coulomb.eng.ohio-state.edu> from "Bruce Bowling" at Sep 29, 95 03:29:24 pm MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Length: 1120 Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu > Absolutely! But the Dr. touts that a measured gain of 15 HP can be had > by his box. Just like his variable-reluctance magic coil will add > 5 HP alone (hence the PhD in marketing). They may help a oil-burner > or a gas-flooder run a little better, but the average car will > not get the gain stated. And where is the computer which is > built-in the box? Hard to see with all that potting compound. I'm not going to argue for Jacob's big advertising campaign. The numbers just don't add up and people I know who have tried his system said their engines sputtered and acted like crap for the first few weeks..which is ridiculous since it should only take 10 or 20 revs. at MOST to map out the curves ASSUMING Jacob's box actually does any controls at all. However, potting in this case is a GOOD THING. The big advantage of potting in this case is that you gain increased shock resistance, potentially increased thermal conduction, and weatherproofing. A side benefit is that any other prying eyes who may happen to know what they are doing have a much more difficult time digging into your corporate secrets. From owner-diy_efi-archive Mon Oct 2 21:48:12 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id VAA00399; Mon, 2 Oct 1995 21:36:22 GMT Return-Path: Received: from opus.mtu.edu by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id QAA26379; Mon, 2 Oct 1995 16:55:11 -0400 Received: from mtu.edu (root@mtu.edu [141.219.70.1]) by opus.mtu.edu (8.6.10/8.6.10) with ESMTP id QAA11215 for ; Mon, 2 Oct 1995 16:54:57 -0400 Received: from mmserver.mm.mtu.edu (mmserver.mm.mtu.edu [141.219.20.61]) by mtu.edu (8.6.10/8.6.10) with ESMTP id QAA27680 for ; Mon, 2 Oct 1995 16:54:53 -0400 Received: from metlab6.my.mtu.edu (metlab6.my.mtu.edu [141.219.20.86]) by mmserver.mm.mtu.edu (8.6.9/MTU-1.3) with SMTP id QAA25502 for ; Mon, 2 Oct 1995 16:54:23 -0400 From: "Paul E. Campbell" Received: (from pecampbe@localhost) by metlab6.my.mtu.edu (8.6.9/MTU-1.2) id QAA09012 for DIY_EFI@coulomb.eng.ohio-state.edu; Mon, 2 Oct 1995 16:54:24 -0400 Message-Id: <199510022054.QAA09012@metlab6.my.mtu.edu> Subject: Ignition details To: DIY_EFI Date: Mon, 2 Oct 1995 16:54:21 -0400 (EDT) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Length: 8073 Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Okay, as per recommendations on this mailing list (DIY-EFI), I've decided to tackle DIY ignition first. The vehicle in question is an 88 Ford Bronco 2 with stock everything. The engine is 2.9L V-6 with an "EEC-IV" type ignition (Ford specific terminology there). The ignition box itself literally just takes commands from the EEC module on when to fire and does the crankshaft timing filtering for the benefit of the EEC. The EEC is of course a EFI module and some extra space for Ford to continue computerizing the rest of their vehicles with (such as the Ford Taurus stuff). I've learned this much so far: 1. Regardless of WHEN you decide to fire off a spark, there are several things which happen: a. An initial high voltage ionizes the path across the electrodes in the plug. This is usually on the order of 10-20kV. b. The initial spark may go out (bad). Or it may start but burn very slowly and cause backfiring as the still combusting gasses go out the exhaust port (bad). Or it may go into growth mode (good). c. Regardless of whether you use MSD, CD, or regular old ID, you normally light the spark, then continue pouring energy into it. If you don't dump in enough energy, it will either go out or be slow burning. If you have enough, you'll get a good, sustained flame front moving at the maxium rate. d. After the threshold point is reached, adding more energy is pointless and just wastes energy. SAE 850075 confirms this. Another paper I have (but don't have with me) suggests that this threshold is at the point where you can detect an initial pressure rise in the cylinder due to thermal expansion. 2. SAE860485 says that using the spark plug as an ionization sensor does not work at all. However, one bibliographic reference I have ("Engine Performance monitoring by means of the spark plug", Proceedings of the Inst. of Mech. Engineers, Part D, Journal of Automobile Engineering, vol. 209, #D2, pp. 143-146, 1995) probable says you can do it. The local library doesn't get this journal..can someone at least check for me? Also, the recent Saab advertising suggests that this does work, in addition to measuring other good things. 3. SAE750348 is a different type of ignition system not discussed on this list. In that system, a standard ignition coil is used but a charge pump continues to feed energy into the coil so you have a continuous spark (and automatic relighting with that particular circuit as a side benefit). It works like an inductive system but it can sustain a spark indefinitely so it has the advantages that a capacitive multiple spark discharge system would have. Now, this part is conjecture: 1. Suppose we equip our ignition system with the appropriate sensors to measure the conductivity across the plug. While a spark is lit, this could be done by measuring the voltage/current/energy of the ignition system. During the rest of the cycle, you could use a high frequency oscillator to get a signal from the spark plug gap without lighting a spark. 2. First, we should see some base conductivity while the cylinder is drawing fresh air. 3. We should see an increase in the conductivity when the injector fires because the chamber is filled with a moist mixture of fuel and air. 4. When we light the spark, we should see a massive rise in conductivity because there is an ionized path inside the cylinder. 5. As combustion occurs, we should see a distinct CHANGE in the conductivity. This should be either an increase or a decrease (not sure which) because the resulting exhaust gasses have a different conductivity. Once we see that change occur, this should indicate that we have a sustained flame front that is now moving outward away from the vicinity of the spark plug and we can cease feeding energy into the ionized gap. 6. I'm stuck on #5. If I were a graduate student working on this, I'd just take my CFR engine standard and try it out. But I'm not. 7. Undoubtably (judging by Saab's claims), you can do much more than just detect a good flame front. The conductvity of the exhaust gasses for instance should tell you how complete your burning was and the fact that you didn't see a change in conductivity (see #5) by the time the exhaust valve is opening says you got a misfire on your hands. A similar trick should tell you about detonation and the conductivity of the air/fuel mixture should tell you about leanness. If someone can fill in the details I'm missing above (PLEASE!), then I will start work on the following project: 1. Build a home made spark ignition system as follows: a. On initial lighting, the system charges up a coil by acting as a charge pump into the coil. b. Once the spark is lit, the coil is treated as a voltage multiplier and tank for an oscillator/transformer type ignition system. c. The spark generator (a. and b.) are shut off at an appropriate time. This system is similar to that described in SAE750348 but I'm think about some modifications to it. For instance, the aforementioned high frequency oscillator without sparking for sensor purposes. 2. The system already has to read the engine crank signals if it is going to be a drop in replacement for the original Ford box. The actual crank signal detector will probably use a PLL so that I can access my own higher resolution timing signal. 3. The initial system will just follow the EEC blindly except that I'll set the spark timing to a specific crank angle as far as stopping the spark. 4. Following that, I will look at the data as far as conductivity goes and see if I can't optimize the system further, perhaps even as far as ignoring the EEC's commands as far as spark timing and perhaps lying to the EEC as far as crank angle goes (although at that point, I might as well just start builidng my own EFI too). As far as processing this stuff goes, I would consider the following: a. The amount of data to be processed if this was implemented "directly" (feed the input to a flash A/D converter with or without some sort of extra programmable signal conditioning) is enormous. So instead, I would consider doing everything according to crankshaft angle timing. And then program a series of D registers to latch the data at specific time intervals. This could be done by having a series of programmable triggers set to points on the PLL's output. This would allow me to use a relatively pathetic microcontroller for the actual data analysis and control. Those same triggers will already be necessary for the spark duration control so this is no big thing. As far as whether I'm biting off more than I can chew, I'll list the work I've done over the past 3 years: 1. Designed and built a sensor system for measuring the slurry slump inside a pilot scale autogenous mill grinding -8"+1" hematite ore by measuring the conductivity of the slurry inside the mill (mostly the only technical problems here were analyzing the data, getting the data off a rotating body, and building a measurement device that could stand having several hundred pounds of force striking it regularly). 2. Designed and built a power measurement box that was installed at a mine on their 1500kW motor. This one wasn't so bad as far as interfacing goes, just that it had to take a measurement every 5 minutes and store the data for at least 3 months without any maintenance and survive power failures which are frequent around here. The data logger stored the data in CRC protected EEPROM and spewed the contents on command via RS-232 from a laptop. 3. Designed, modified, etc., the software and the electronics for one of the prototypes of an online viscometer that measures mineral slurry viscosity over a wide range (about 10 s^-1 to 6000 s^-1) of shear rates. The viscometer had to collect the data, analyze it, clean itself out, etc. 4. I've got the transfer case from another one of my vehicles apart on my bench. It's a Ford NP208 for a full size Bronco and one of the thrust washers disintegrated in it (parts are in the mail right now..damn it, I want to go four wheeling still this year and we already had 6" of snow). From owner-diy_efi-archive Mon Oct 2 22:48:06 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id WAA01086; Mon, 2 Oct 1995 22:36:44 GMT Return-Path: Received: from simon.cs.cornell.edu by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id SAA01072; Mon, 2 Oct 1995 18:36:41 -0400 Received: from cloyd.cs.cornell.edu (CLOYD.CS.CORNELL.EDU [128.84.227.15]) by simon.cs.cornell.edu (8.6.10/R1.4) with ESMTP id SAA07149 for ; Mon, 2 Oct 1995 18:36:25 -0400 Received: from CS-ANNEX-1-05.CS.CORNELL.EDU (CS-ANNEX-1-05.CS.CORNELL.EDU [128.84.254.21]) by cloyd.cs.cornell.edu (8.6.10/M1.8) with SMTP id SAA13375 for ; Mon, 2 Oct 1995 18:36:22 -0400 Received: by CS-ANNEX-1-05.CS.CORNELL.EDU with Microsoft Mail id <01BA90F5.0C0BD800@CS-ANNEX-1-05.CS.CORNELL.EDU>; Mon, 2 Oct 1995 18:29:44 -0400 Message-ID: <01BA90F5.0C0BD800@CS-ANNEX-1-05.CS.CORNELL.EDU> From: Jody Shapiro To: "'DIY_EFI@coulomb.eng.ohio-state.edu'" Subject: RE: O2 sensors - WWW Date: Mon, 2 Oct 1995 17:57:22 -0400 Encoding: 26 TEXT, 44 UUENCODE X-MS-Attachment: WINMAIL.DAT 0 00-00-1980 00:00 Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu From: Jens Knickmeyer[SMTP:knick@ibr.cs.tu-bs.de] wrote: > > > > > > >>From a WWW page about O2 sensors, I got the following information: > > > > With so many replies and quotes, I don't even know who wrote this in the > first place, bu I have been looking for this homepage and have not for the > life of me been able to find it. Can someone post the address for it, and > maybe add it to the resources or www pages portion of the DIY_EFI page. > > Thanks, > dan That was me (see below). The WWW page is http://ram.chem.tulane.edu:8080/f-body/trivia/o2sensor.html I contacted that site a long time ago and do not know if it still works, so please check out before adding a pointer to it on the DIY_EFI page! Jens The new f-body page is at: http://www.he.net/~wj/f-body/fbody.html begin 600 WINMAIL.DAT M>)\^(BT6`0:0" `$```````!``$``0>0!@`(````Y 0```````#H``$-@ 0` M`@````(``@`!!) &`&0!```!````# ````,``# #````"P`/#@`````"`?\/ M`0```&,`````````@2L?I+ZC$!F=;@#=`0]4`@````!$25E?149)0&-O=6QO M;6(N96YG+F]H:6\M``,P`0`` M`",```!$25E?149)0&-O=6QO;6(N96YG+F]H:6\M`' ``0```!4```!213H@3S(@`!X,`0````4` M``!33510`````!X`'PP!````& ```&IS:&%P:7)O0&-S+F-O``@0`0```&4```!&4D]-.DI%3E-+3DE#2TU% M64524TU44#I+3DE#2T!)0E)#4U15+4)31$4\1$%.245,2$%24EE%3%-"15)' M5U)/5$4Z1E)/34%75U=004=%04)/551/,E-%3E-/4E,L24=/5%1(``````(! M"1 !````7 ,``%@#``!1!0``3%I&=>,&0]W_``H!#P(5`J@%ZP*#`% "\@D" M`&-H"L!S970R-P8`!L,"@S(#Q0(`<')"<1'B >020 M6U--$%10.FL?,D!I8@!R+F-S+G1U+?9B(- -L%T*CPN1%%$+\KD<-CQ$`' ( MD ,@2 K @')Y($5LG4%0$\1X!&P`( %L',@+"!)(&<<4"!T=F@H@ (0;!6@`_ 9 M$"#+"X "$'(`P'1I`B E>)DFJE=I*B I(&\@`X$_)' 6$ M0") $( !P9""L M<74<42F39 (@)P5 =&5V"? @(" JH"40:/\M<"4C*A$$`"KQ*A(EAQI )Q&@ M!4 +46-E*:!B=5\IL1& +[ RX GA(!6@;_YK*L(K(3#4,% '@"A4+G&_,T,P M``5 -&0QB!G09BB W&]F+8 S=0&@;##!+7"'&D N<2T@+B @0P.1SRE@!X " M("B <&\R42HB^&%D9!80!!$T8BT@*:#W+F$EAP# >23 .K(Y$3B2ORHB.O$( M83*P!" %L7<^D'\H0P0@.C `("N!-Y(J(D1@25E?148IP"A2+LDECR!4$8!N M:RF00/<^9 !P(84AA4(1!4!W8;L$(#?1*!&P,W(JD2E YE]#MRB *!<$`"&% M: ) <, Z+R]R86T@L"HP'TAP(/ 8\4#0"8!U.C@R,$F0+V8A$ 1P>2^*= 40 M=@0*-$DP"LA.J,JPB?P_SHP"X 3T#2!+7 ](3^!/^Y^(4-,'M(AAR)J)@8B M36-_`$!& Received: from pine.liii.com by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id UAA01350; Mon, 2 Oct 1995 20:20:21 -0400 Received: from rowan.liii.com by pine.liii.com with SMTP (5.67b/15Feb94-Long Island Information) id AA18126; Mon, 2 Oct 1995 20:20:57 -0400 Received: by rowan.liii.com (5.67b/15Feb94-Long Island Information) id AA15392; Mon, 2 Oct 1995 20:20:24 -0400 Date: Mon, 2 Oct 1995 20:20:22 -0400 (EDT) From: Bob Valentine To: DIY_EFI Subject: Re: Ignition Book In-Reply-To: <199510020156.VAA23321@coulomb.eng.ohio-state.edu> Message-Id: Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu > The ONLY plus I give to Jacobs box is a toggle switch (3 position) > which can switch you back to normal un-mod mode. The third position > kills the ignition. Jocobs could do this because the stock ignition That is a nice option... especially since timing lights don't trigger too well of multiple spark systems like MSD. > amplifier is retained, the Jacobs box is inserted between the > amplifier and the coil. MSD takes over the job of the ignition > amp by hooking directly to the reluctor pickup, so this is harder > with MSD. I carry a homemade harness with a HEI module spliced in the event of a problem with the MSD. Haven't had to use it yet, save for timing adjustments. --> Bob Valentine <-- --> ravalent@liii.com <-- "Hard Acceleration Saves Costly Aggravation" From owner-diy_efi-archive Tue Oct 3 02:09:55 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id CAA01677; Tue, 3 Oct 1995 02:01:52 GMT Return-Path: Received: from eagle.natinst.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id WAA01663; Mon, 2 Oct 1995 22:01:48 -0400 Received: (from klopfer@localhost) by eagle.natinst.com (8.6.12/8.6.12) id VAA20165 for DIY_EFI@coulomb.eng.ohio-state.edu; Mon, 2 Oct 1995 21:01:35 -0500 Date: Mon, 2 Oct 1995 21:01:35 -0500 From: Mike Klopfer Message-Id: <199510030201.VAA20165@eagle.natinst.com> To: DIY_EFI Subject: ion gap sensor Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu There was a recent post about measuring the spark current to get information on the combustion. There was some good discussion on this in march of this year and the following recent references were given by r.dingli@ee.mu.oz.au < included text > SAE 950004 Ion-Gap Sense in Misfire Detection, Knock and Engine Control Auzins, J., Johansson, H. and Nytomt, J., (Delco and Mecel) SAE 950003 Engine Misfire Detection by Ionization Current Monitoring Lee, A. and Pyko, J., (Chrysler) From owner-diy_efi-archive Tue Oct 3 04:24:26 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id EAA02137; Tue, 3 Oct 1995 04:16:00 GMT Return-Path: Received: from genesis.nred.ma.us by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id AAA02122; Tue, 3 Oct 1995 00:15:57 -0400 From: genesis!mvarc!an.bradford.ma.us!adh Received: from mvarc.UUCP by genesis.nred.ma.us (8.6.9/genesis0.0) id XAA20784; Mon, 2 Oct 1995 23:46:04 -0400 Received: from an.bradford.ma.us by mvarc.n-andover.ma.us with uucp (Smail3.1.28.1 #5) id m0WogvF-0002jKC; Tue, 14 May 85 09:09 EDT Message-Id: Date: Tue, 14 May 85 09:09 EDT Apparently-From: mvarc!an.bradford.ma.us!adh To: DIY_EFI Subject: Re: Ignition Book Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu From: neville@verity.com (Neville Newman) When i lived in Massachusetts, SAABs were everywhere. that's because boston was the location of the first [and for some few years the only] saab dealer in north america -- gaston andrey. this was deliberate - saab didn't want to spread themselves too thin. _______________________________________________________________________________ Andrew Hay LIFE, n: A phenomenon that resists the second law of thermodynamics adh@an.bradford.ma.us ---Schroedinger From owner-diy_efi-archive Tue Oct 3 04:24:26 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id EAA02166; Tue, 3 Oct 1995 04:16:05 GMT Return-Path: Received: from genesis.nred.ma.us by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id AAA02151; Tue, 3 Oct 1995 00:16:02 -0400 From: genesis!mvarc!an.bradford.ma.us!adh Received: from mvarc.UUCP by genesis.nred.ma.us (8.6.9/genesis0.0) id XAA20771; Mon, 2 Oct 1995 23:46:00 -0400 Received: from an.bradford.ma.us by mvarc.n-andover.ma.us with uucp (Smail3.1.28.1 #5) id m0WogrS-0002jKC; Tue, 14 May 85 09:05 EDT Message-Id: Date: Tue, 14 May 85 09:05 EDT Apparently-From: mvarc!an.bradford.ma.us!adh To: DIY_EFI Subject: Re: Ignition Book Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu From: Jens Knickmeyer wrote: > > Even more > amazing was the followup shock-factor demonstration, where they fed the > same engine's inlet from the tailpipe of a running SAAB 96? 2-cycle > motor. The output was still within CA-legal emmissions limits. Afaik, it was a Saab 99 (the old "tank" how it is called here). Rest of the message correlates pretty with what I read about it. Really amazing.. couldn't have been a 99. when i was growing up, my family had -5- saabs [not all at once] - a 93, 2 96s, and 2 99s. the latter were -never- available with the ring-ding; baseline engine was originally a 1709-cc triumph-built slant-4 with 87 hp using analog bosch fi [1971]. _______________________________________________________________________________ Andrew Hay LIFE, n: A phenomenon that resists the second law of thermodynamics adh@an.bradford.ma.us ---Schroedinger From owner-diy_efi-archive Tue Oct 3 04:24:28 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id EAA02152; Tue, 3 Oct 1995 04:16:03 GMT Return-Path: Received: from genesis.nred.ma.us by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id AAA02136; Tue, 3 Oct 1995 00:16:00 -0400 From: genesis!mvarc!an.bradford.ma.us!adh Received: from mvarc.UUCP by genesis.nred.ma.us (8.6.9/genesis0.0) id XAA20765; Mon, 2 Oct 1995 23:45:46 -0400 Received: from an.bradford.ma.us by mvarc.n-andover.ma.us with uucp (Smail3.1.28.1 #5) id m0Wog72-0002jKC; Tue, 14 May 85 08:17 EDT Message-Id: Date: Tue, 14 May 85 08:17 EDT Apparently-From: mvarc!an.bradford.ma.us!adh To: DIY_EFI Subject: Re: Ignition Book Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu From: Bruce Bowling MSD ignitions are also CD, but the added multiple spark is something the others (like Jacobs) do not have. They both put about 450 volts across the coil, using a DC-to-DC converter. MSD also does not "pot" their boxes. the multiple spark is also mostly marketing jazz -- someone on the net reverse-engineered the msd box and discovered that the sparks count down as rpm increases, until it's down to just one spark above ~3500rpm. _______________________________________________________________________________ Andrew Hay LIFE, n: A phenomenon that resists the second law of thermodynamics adh@an.bradford.ma.us ---Schroedinger From owner-diy_efi-archive Tue Oct 3 11:53:33 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id LAA02746; Tue, 3 Oct 1995 11:45:57 GMT Return-Path: Received: from genesis.nred.ma.us by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id HAA02732; Tue, 3 Oct 1995 07:45:53 -0400 From: genesis!mvarc!an.bradford.ma.us!adh Received: from mvarc.UUCP by genesis.nred.ma.us (8.6.9/genesis0.0) id HAA26854; Tue, 3 Oct 1995 07:44:20 -0400 Received: from an.bradford.ma.us by mvarc.n-andover.ma.us with uucp (Smail3.1.28.1 #5) id m0WoqKN-0002jKC; Tue, 14 May 85 19:11 EDT Message-Id: Date: Tue, 14 May 85 19:11 EDT Apparently-From: mvarc!an.bradford.ma.us!adh To: DIY_EFI Subject: Re: Ignition details Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu From: "Paul E. Campbell" Okay, as per recommendations on this mailing list (DIY-EFI), I've decided to tackle DIY ignition first. i hope you cooperate/coordinate with the diy332 folks... [] 4. I've got the transfer case from another one of my vehicles apart on my bench. It's a Ford NP208 for a full size Bronco and one of the thrust washers automotive nit: NP stands for new process gear div. of chrysler; they make just about all of the transfer cases for everybody. _______________________________________________________________________________ Andrew Hay LIFE, n: A phenomenon that resists the second law of thermodynamics adh@an.bradford.ma.us ---Schroedinger From owner-diy_efi-archive Tue Oct 3 12:19:20 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id MAA02883; Tue, 3 Oct 1995 12:13:51 GMT Return-Path: Received: from isy.liu.se by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id IAA02869; Tue, 3 Oct 1995 08:13:47 -0400 Received: from macken.isy.liu.se (fs-gw) by isy.liu.se (5.65b/isy.minimaster-V1.0b2) id AA08561; Tue, 3 Oct 95 13:13:31 +0100 Received: from duett.isy.liu.se by macken.isy.liu.se (4.1/SMI-4.1) id AA05889; Tue, 3 Oct 95 13:11:20 +0100 Date: Tue, 3 Oct 95 13:11:20 +0100 From: matny@isy.liu.se (Mattias Nyberg) Message-Id: <9510031211.AA05889@macken.isy.liu.se> To: DIY_EFI Subject: O2-sensor and lambda Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Does the O2-sensor measure lambda? The O2-sensor measure the concentration of O2 in the exhaust gases. This is not equivalent or proportional to the lambda value. The relation is as follows (from Heywood): Ma [CO2]+[CO]/2+[H2O]/2+[NO]/2+[NO2]+[O2] (A/F) = 4.77*----*----------------------------------------- Mf [HC]+[CO]+[CO2] where [..] means concentration, and Ma is the mole-mass of air and Mf is the mole-mass of fuel. In a linear lambda sensor, we can measure the O2 concentration but this is obvously not the same as the lambda value. What is the error made? Is it really lamdba that is interesting for the catalyst, or is it the O2-concentration? Mattias Nyberg From owner-diy_efi-archive Tue Oct 3 12:44:37 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id MAA02954; Tue, 3 Oct 1995 12:37:00 GMT Return-Path: Received: from echo.i-link.net by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id IAA02940; Tue, 3 Oct 1995 08:36:57 -0400 Received: from sanantonio-1-6.i-link.net by echo.i-link.net (AIX 3.2/UCB 5.64/4.03) id AA20998; Tue, 3 Oct 1995 07:36:38 -0500 Message-Id: <9510031236.AA20998@echo.i-link.net> Comments: Authenticated sender is From: "Sam L. Smith" Organization: SamWise InfoSystems To: DIY_EFI Date: Tue, 3 Oct 1995 07:27:12 -6000 Subject: Catalogs, data sheets, etc. Priority: normal X-Mailer: Pegasus Mail for Windows (v2.01) Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hello to all, I am a new subscriber to this group, so please excuse me if I rehash info that has already been beaten to death. I'm a retired (for 20 years) auto mechanic and retired (for 5 years) computer engineer, so your list looks very interesting. I saw Ed Lasinger's series of articles on EFI and electronic ignition and thought that I might try to ressurect an old Honda GL-1000 motorcycle from the dead with a home-brew EFI system. To get off ground zero, I need information on sensors, injectors, etc. If there is a FAQ or other listing of manufacturers for these items, please direct me there. I have a pretty good set of microcontroller data books, but they are old and I need some fresh info there too. Any help would be appreciated. ----- "When the going gets weird, the weird turn pro." - HST Sam_L_Smith@i-link.net Sam L. Smith From owner-diy_efi-archive Tue Oct 3 13:48:51 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id NAA03100; Tue, 3 Oct 1995 13:42:10 GMT Return-Path: Received: from devserve.cebaf.gov by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id JAA03086; Tue, 3 Oct 1995 09:42:05 -0400 Message-Id: <199510031342.JAA03086@coulomb.eng.ohio-state.edu> Received: by devserve.cebaf.gov (1.37.109.16/16.2) id AA062657708; Tue, 3 Oct 1995 09:41:49 -0400 From: Bruce Bowling Subject: Re: Ignition Book To: DIY_EFI Date: Tue, 03 Oct 1995 9:41:48 EDT In-Reply-To: ; from "adh@coulomb.eng.ohio-state.edu" at May 14, 85 8:17 am X-Mailer: Elm [revision: 109.14] Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu ~ the multiple spark is also mostly marketing jazz -- someone on the net ~ reverse-engineered the msd box and discovered that the sparks count ~ down as rpm increases, until it's down to just one spark above ~3500rpm. ~ But the average RPM range of the average highway vehicle falls well below 3500 RPM, so there is benefit. Now, does MSD charge and dump a single capacitor, or is a bank of capacitors charged up and a round-robin circuit sequentially dumps the caps through the coil? I think that MSD does the former. A challenge: With all of the bright engineers on this group, can someone come up with a circuit which does the multiple spark concept maybe better than MSD had implemented? - Bruce -- ----------------------------------------------------- <<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ----------------------------------------------------- Bruce A. Bowling Staff Scientist - Instrumentation and Controls The Continuous Electron Beam Accelerator Facility 12000 Jefferson Ave - Newport News, VA 23602 (804) 249-7240 bowling@cebaf.gov http://devserve.cebaf.gov/~bowling ----------------------------------------------------- <<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ----------------------------------------------------- From owner-diy_efi-archive Tue Oct 3 15:26:27 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id PAA03679; Tue, 3 Oct 1995 15:20:07 GMT Return-Path: Received: from ben.britain.eu.net by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id LAA03663; Tue, 3 Oct 1995 11:20:03 -0400 Received: from acorn.acorn.co.uk by ben.britain.eu.net via UKIP with SMTP (PP) id ; Tue, 3 Oct 1995 16:19:30 +0100 Received: from venus.acorn.co.uk by acorn.co.uk (4.1/Am36) id AA04801; Tue, 3 Oct 95 16:19:23 BST Received: by venus.acorn.co.uk (5.51/Ap1.4) id AA01478; Tue, 3 Oct 95 16:19:18 BST X-Account: 1007 Date: Tue, 03 Oct 95 16:22:48 BST From: wturner@acorn.co.uk (William Turner) To: DIY_EFI Subject: Re: Ignition Book Message-Id: <30716358@wturner> In-Reply-To: <199510031342.JAA03086@coulomb.eng.ohio-state.edu> Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu > ~ the multiple spark is also mostly marketing jazz -- someone on the net > ~ reverse-engineered the msd box and discovered that the sparks count > ~ down as rpm increases, until it's down to just one spark above ~3500rpm. > ~ > But the average RPM range of the average highway vehicle falls well > below 3500 RPM, so there is benefit. Excuse my ignorance, but do 'Splitfire' sparkplugs fall under the heading of being multiple-spark devices? Do they spark twice at the same time, or sequentially (as MSD systems appear to do). And do they actually have any benefit? (obviously, racing rpm's are going to be well in excess of 3500, but I assume multiple-sparks enhance fuel economy at the lower RPMs). William From owner-diy_efi-archive Tue Oct 3 15:40:18 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id PAA03716; Tue, 3 Oct 1995 15:35:40 GMT Return-Path: Received: from gatekeeper.es.dupont.com by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id LAA03702; Tue, 3 Oct 1995 11:35:37 -0400 Received: by gatekeeper.es.dupont.com; id AA02469; Tue, 3 Oct 95 11:35:17 -0400 Message-Id: <9510031535.AA02469@gatekeeper.es.dupont.com> Received: from coxrd.wm.dupont.com by wmvx06.lvs.dupont.com with SMTP; Tue, 3 Oct 1995 11:35:12 -0400 (EDT) X-Sender: coxrd@wmvx.lvs.dupont.com X-Mailer: Windows Eudora Pro Version 2.1.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Tue, 03 Oct 1995 11:36:24 +0600 To: DIY_EFI From: "Ryal D. Cox" Subject: Edelbrock Pro-Flo EFI system Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu I have been "lurking" on this and the efi332 lists for a while but have a question for the "guru's" of EFI. Does anyone on the DIY_EFI list have any specific information or experience with the Edelbrock Pro-Flo system? I believe the Pro-Flow system is available only for the small-block Chevy and includes a traditional manifold, 1000 cfm throttle body, fuel injectors, fuel rails, EFI computer, ignition amplifier, fuel pump, regulator, hoses, sensors and a wiring harness for $1779.95 (ASAP catalog). Edelbrock claims the system is sequential, multpoint fuel injection that has a driver-adjustable control module (no PC needed) for ignition advance and fuel flow control. Any idea on what they are using for their EFI computer? Any opinions on performance and/or flexibility? This type of system seems much less expensive than the after-market tuned-port (TPI) systems. Any reason to choose one over another? Thanks. |--------| | |----| | | |\ /| | | \/ | Ryal D. Cox | | /\ | E-mail: COXRD@WMVX-MAIL.LVS.DUPONT.COM | |/ \| | |----| | |--------| From owner-diy_efi-archive Tue Oct 3 15:58:17 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id PAA03827; Tue, 3 Oct 1995 15:52:48 GMT Return-Path: Received: from fsa.cpsc.ucalgary.ca by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id LAA03813; Tue, 3 Oct 1995 11:52:41 -0400 Received: from aa.cpsc.ucalgary.ca (aa.cpsc.ucalgary.ca [136.159.4.5]) by fsa.cpsc.ucalgary.ca (1.8) id ; Tue, 3 Oct 1995 09:52:09 -0600 From: fridman@cpsc.ucalgary.ca (Robert Fridman) Received: by aa.cpsc.ucalgary.ca (1.1; from fridman@localhost) id ; Tue, 3 Oct 1995 09:52:09 -0600 Date: Tue, 3 Oct 1995 09:52:09 -0600 Message-Id: <199510031552.JAA07853@aa.cpsc.ucalgary.ca> To: DIY_EFI Subject: Re: O2 sensors - WWW Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu I added a link to the 02 sensor `FAQ' and the F-body page to the diy_efi WWW pages (http://www.cpsc.ucalgary.ca/~fridman/diy_efi) under the `Other related WWW servers' heading. RF. ------------------------------------------------------------------------- 83 R100 DoD 749 Robert Fridman 71 Super Beetle fridman@cpsc.ucalgary.ca 84 320i From owner-diy_efi-archive Tue Oct 3 16:32:36 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id QAA04362; Tue, 3 Oct 1995 16:27:06 GMT Return-Path: Received: from wotan.compaq.com by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id MAA04348; Tue, 3 Oct 1995 12:27:01 -0400 Received: from twisto by wotan.compaq.com with uucp (Smail3.1.28.1 #12) id m0t09V5-0009tPC; Tue, 3 Oct 95 10:43 CDT Received: from bangate.compaq.com by twisto.eng.hou.compaq.com with smtp (Smail3.1.28.1 #10) id m0t09Ur-000uNQC; Tue, 3 Oct 95 10:43 CDT Received: by bangate.compaq.com; Tue, 3 Oct 95 10:43:03 CDT Date: Tue, 3 Oct 95 10:42:57 CDT Message-ID: X-Priority: 3 (Normal) To: From: Subject: re: Re: Ignition Book Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu wturner@acorn.co.uk (William Turner) Wrote: | | > ~ the multiple spark is also mostly marketing jazz -- someone on the net | > ~ reverse-engineered the msd box and discovered that the sparks count | > ~ down as rpm increases, until it's down to just one spark above ~3500rpm. | > ~ | > But the average RPM range of the average highway vehicle falls well | > below 3500 RPM, so there is benefit. | | Excuse my ignorance, but do 'Splitfire' sparkplugs fall under the | heading of being multiple-spark devices? Do they spark twice at the same | time, or sequentially (as MSD systems appear to do). And do they | actually have any benefit? (obviously, racing rpm's are going to be | well in excess of 3500, but I assume multiple-sparks enhance fuel | economy at the lower RPMs). | | William | A splitfire plug only fires as many times as the ignition system does. Which means usually it fires once, unless you have an MSD or other multiple spark system. The fact that the electrode is split makes no difference. Only one arc will form. The only way to get simultaneous arcs would be to have two wires, and either two coils or a single dual output coil. Otherwise the arc (like humans :-) will take the path of least resistance. -steve Steve Ravet sravet@bangate.compaq.com Baby you're a genius when it comes to cooking up some chili sauce... From owner-diy_efi-archive Tue Oct 3 17:27:35 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id RAA04652; Tue, 3 Oct 1995 17:22:47 GMT Return-Path: Received: from ra.ibr.cs.tu-bs.de by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id NAA04638; Tue, 3 Oct 1995 13:22:36 -0400 Received: from kastor [134.169.34.8] by ra.ibr.cs.tu-bs.de (8.6.10/tubsibr) with ESMTP id SAA23879 for ; Tue, 3 Oct 1995 18:22:14 +0100 Received: from knick@localhost by kastor.ibr.cs.tu-bs.de (8.6.10/tubsibr) id SAA02291 for DIY_EFI@coulomb.eng.ohio-state.edu; Tue, 3 Oct 1995 18:22:13 +0100 From: Jens Knickmeyer Message-Id: <199510031722.SAA02291@kastor.ibr.cs.tu-bs.de> Subject: Re: Ignition Book To: DIY_EFI Date: Tue, 3 Oct 95 18:22:13 MET In-Reply-To: <199510021707.KAA21954@cato.verity.com> from "Neville Newman" at Oct 2, 95 10:07:52 am Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu wrote: > > Every 99 i have ever seen is a 4-cylinder 4-stroke. The only > 3-cylinder 2-strokes i've seen are 96's . When i lived in > Massachusetts, SAABs were everywhere. > > If you know 99's to have had the 3-cylinder motor, i'd like > to find out what years so i can fill in my SAAB "map". > > If not, perhaps you could post a correction to the list. > > -neville I thought it was a Saab 99 they used, and I wrote that. Never talked about any engines, cause I am not familiar with the Saab ones. Sorry to have caused such a confusion, Jens From owner-diy_efi-archive Tue Oct 3 17:51:45 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id RAA04745; Tue, 3 Oct 1995 17:47:25 GMT Return-Path: Received: from firewall by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id NAA04731; Tue, 3 Oct 1995 13:47:19 -0400 Received: by firewall (5.0/SMI-SVR4) id AA09721; Tue, 3 Oct 1995 13:48:52 +0500 Date: Tue, 3 Oct 1995 13:48:52 +0500 From: jcook@apt.com (Jim Cook) Message-Id: <9510031748.AA09721@firewall> To: DIY_EFI Content-Length: 1643 Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu >Excuse my ignorance, but do 'Splitfire' sparkplugs fall under the >heading of being multiple-spark devices? Do they spark twice at the same >time, or sequentially (as MSD systems appear to do). And do they >actually have any benefit? (obviously, racing rpm's are going to be >well in excess of 3500, but I assume multiple-sparks enhance fuel >economy at the lower RPMs). >William As I understand it, the Splitfire does not fire multiple times. It is not a multiple spark device in itself. However, its key advantage is supposed to be its multiple targets. As a normal spark plug "wears" the electrode edges become rounded and/or contaminated. The rounded edge increases the gap and contamination from combustion increases the resistance, both of which can lead to a misfire. A side note to this is that is a natural phenomena that the spark likes to jump from an edge. This can be seen on a new spark plug. The spark will source from the edge of the source electrode rather than the center even though the surfaces are paralell. This has been referred to as "skin effect" the theory that electrons travel on outer surface of a wire more so than the center. I suppose it is possible for the spark to change which target electrode it is using in a single firing as the spark does have a finite length. However, it would still be a single uninterrupted spark. Additionally, I would like to thank Bruce Bowling for turning me on to the EFI mailings. I have been on this list for about a month. I am an EE that worked 10 years as a mechanic. I have the same list of questions that I posted directly to Bruce coming this way soon. Jim Cook From owner-diy_efi-archive Tue Oct 3 17:51:51 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id RAA04723; Tue, 3 Oct 1995 17:45:12 GMT Return-Path: Received: from dclsn28.cen.uiuc.edu by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id NAA04709; Tue, 3 Oct 1995 13:45:09 -0400 Received: (from cburian@localhost) by dclsn28.cen.uiuc.edu (8.6.12/8.6.12) id MAA06877 for DIY_EFI@coulomb.eng.ohio-state.edu; Tue, 3 Oct 1995 12:44:50 -0500 Message-Id: <199510031744.MAA06877@dclsn28.cen.uiuc.edu> Subject: Re: Ignition Book To: DIY_EFI Date: Tue, 3 Oct 1995 12:44:48 -0500 (CDT) In-Reply-To: <199510031342.JAA03086@coulomb.eng.ohio-state.edu> from "Bruce Bowling" at Oct 3, 95 09:41:48 am From: (Chris Burian) X-Mailer: ELM [version 2.4 PL24] Content-Type: text Content-Length: 2504 Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Bruce Bowling writes: > A challenge: > With all of the bright engineers on this group, can someone > come up with a circuit which does the multiple spark concept > maybe better than MSD had implemented? Are MSD schmatics on line anywhere? I want to design a multi-spark CD system. Some of the things I've considered are: Can I make a multispark system by simply letting the L-C circuit (capacitor and ign. coil) ring, or does it need to be retriggered? (i.e. can I substitute a triac for the SCR) Is retriggering normally done internally by detecting SCR shutoff and subsequent recharging,or does a timing circuit do the retriggering? It looks like common CS systems recharge at 500Hz. What are the disadvantages of raising this frequency so that recharging happens faster (allowing multisparks at high RPM)? Larger instantaneous currents in the primary side (and secondary side)? Easier question: what guage wire should I use in the secondary of my step up transformer? Re: the discussion of how low a battery voltage a CDI will work at: in the several schematics I've gathered of "typical" CD ignitions, the big functional difference has been that most units have a push-pull oscillator connected by three wires to the primary of the transformer, and feedback for the oscillator comes from the opposing transistor. But in another design the FB comes from extra windings in the transformer. The author pointed out that this will make the oscillator drive to maximum possible output no matter what input voltage is. So, the circuit is overengineered to work at lower voltages, and applying full 14V doesn't cause excessive current because of the limiting feedback. My idea is to boost charge freqency to several kHz, then have the computer start sparking at the proper crank position and continue to retrigger after the worst case recharge interval multiple times for n degrees of crank rotation. (How far should I go? Or, considering worst case, is there a time when it's better to not fire than fire extremely retarded? Or just keep firing until the exhaust opens? BTW, this is on a dual coil, 4-cylinder MC engine, not a car engine with distributor, so that doesn't limit me with worries about pre-ignition of the next cylinder.) But a retrigger that is independent of the initial trigger signal (i.e. the trigger is just a gate to allow sparking to occur) would be preferable. Any ideas on how to implement self-retriggering? Comparator checking cap voltage? Chris From owner-diy_efi-archive Tue Oct 3 17:54:20 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id RAA04811; Tue, 3 Oct 1995 17:53:09 GMT Return-Path: Received: from igw.fmc.com by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id NAA04797; Tue, 3 Oct 1995 13:53:06 -0400 Received: by igw.fmc.com id AA02828 (InterLock SMTP Gateway 3.0 for DIY_EFI@coulomb.eng.ohio-state.edu); Tue, 3 Oct 1995 12:52:38 -0500 Message-Id: <199510031752.AA02828@igw.fmc.com> Received: by igw.fmc.com (Protected-side Proxy Mail Agent-1); Tue, 3 Oct 1995 12:52:38 -0500 Date: 3 Oct 1995 10:51:44 -0800 From: "YueMin Wong" Subject: The EFI332 Board To: " EFI" X-Mailer: Mail*Link SMTP-QM 3.0.2 Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu REGARDING The EFI332 Board I understand that a newer version is being worked on, but in the mean time I have a need for a reasonably priced 332 based board for a project. Is the 0.4 design PC board still available? If so, how can I purchase one? (Blank or stuufed, either way.) Otherwise, when is the newer version expected? From owner-diy_efi-archive Tue Oct 3 17:59:47 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id RAA04961; Tue, 3 Oct 1995 17:57:48 GMT Return-Path: Received: from dclsn28.cen.uiuc.edu by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id NAA04947; Tue, 3 Oct 1995 13:57:45 -0400 Received: (from cburian@localhost) by dclsn28.cen.uiuc.edu (8.6.12/8.6.12) id MAA06885 for DIY_EFI@coulomb.eng.ohio-state.edu; Tue, 3 Oct 1995 12:57:25 -0500 Message-Id: <199510031757.MAA06885@dclsn28.cen.uiuc.edu> Subject: Re: Edelbrock Pro-Flo EFI system To: DIY_EFI Date: Tue, 3 Oct 1995 12:57:24 -0500 (CDT) In-Reply-To: <9510031535.AA02469@gatekeeper.es.dupont.com> from "Ryal D. Cox" at Oct 3, 95 11:36:24 am From: (Chris Burian) X-Mailer: ELM [version 2.4 PL24] Content-Type: text Content-Length: 1447 Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Ryal Cox writes: > Any idea on what they are using for their EFI computer? Any opinions on > performance and/or flexibility? This type of system seems much less > expensive than the after-market tuned-port (TPI) systems. Any reason to > choose one over another? My conversation with an Edelbrock tech guy gave me the impression they've put a lot of effort into making the system painless and into baseline tuning it. It seems to be meant for higher-revving, big cam small blocks, considering the HP rating and the fact that it uses a single plane manifold instead of long tuned runners, like GM factory TPI. Some but not all of the low-RPM disadvantages of a single-plane manifold are alleviated with fuel injection. I would be glad to pay $2000 for the system, but the tech guy said it will never be make for Pontiac motors (it's not even made for Fords or for Chevy BB's) and they refuse to sell the parts individually because of bad experiences with their older first-gen piece-together system. Customers were (wrongly, IMO) complaining about mechanical specifics for their particular applications, and their own misunderstanding of A/F basics and tuning methods. Re: performance: I'll bet it kicks ass. Re: flexibility: Don't you provide them with a description of your engine mods, especially cam numbers, and they send you a PROM? Plus I think it has a narrower range of on-the-spot tuning with a little control box. Chris From owner-diy_efi-archive Tue Oct 3 18:29:22 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id SAA05072; Tue, 3 Oct 1995 18:21:25 GMT Return-Path: Received: from ariel.gi.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id OAA05058; Tue, 3 Oct 1995 14:21:21 -0400 Received: from gismtpgate.gi.com (po1.gi.com) by VCA.GI.COM (PMDF V5.0-5 #7516) id <01HW02NE9HR4K5FQVR@VCA.GI.COM> for DIY_EFI@coulomb.eng.ohio-state.edu; Tue, 03 Oct 1995 11:19:58 -0700 (PDT) Received: by gismtpgate.gi.com with Microsoft Mail id <30717EBC@gismtpgate.gi.com>; Tue, 03 Oct 1995 11:19:40 -0700 (PDT) Date: Tue, 03 Oct 1995 11:20:00 -0700 (PDT) From: "Zublin, Bryan (SD-MS)" Subject: Re: [Q] EFI computers on different engines To: "diy_efi (postings)" Cc: "Zublin, Bryan (SD-MS)" Message-id: <30717EBC@gismtpgate.gi.com> X-Mailer: Microsoft Mail V3.0 Content-transfer-encoding: 7BIT Encoding: 15 TEXT Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Craig writes: > An importer of japanese engines here have piles of 2nd hand computers > (at $US 15 each!! :-) and pumps, injectors etc. So, if I can get a workable > solution with one particular type of computer that's in ready supply I could > sell about 1/2 a dozen straight away (a few freinds are displaying keen > interest in EFI). Craig, Who is this importer, and where are they located? Bryan Zublin bzublin@gi.com From owner-diy_efi-archive Tue Oct 3 18:39:16 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id SAA05187; Tue, 3 Oct 1995 18:32:37 GMT Return-Path: Received: from netmail.austin.ibm.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id OAA05173; Tue, 3 Oct 1995 14:32:32 -0400 Received: from foules.austin.ibm.com (foules.austin.ibm.com [129.35.145.177]) by netmail.austin.ibm.com (8.6.12/8.6.11) with SMTP id NAA56532 for ; Tue, 3 Oct 1995 13:31:50 -0500 Received: by foules.austin.ibm.com (AIX 3.2/UCB 5.64/4.03-client-2.6) for DIY_EFI@coulomb.eng.ohio-state.edu at austin.ibm.com; id AA14722; Tue, 3 Oct 1995 13:31:49 -0500 From: dcole@austin.ibm.com (Dixon Cole) Message-Id: <9510031831.AA14722@foules.austin.ibm.com> Subject: Re: injector sizing To: DIY_EFI Date: Tue, 3 Oct 1995 13:31:48 -0500 (CDT) In-Reply-To: <199510010325.UAA20954@cato.verity.com> from "Neville Newman" at Sep 30, 95 08:25:34 pm X-Mailer: ELM [version 2.4 PL22] Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Length: 520 Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu > > Jonathan R. Lusky writes: > > Neville Newman writes: > > > Camden Superchargers, in Dallas, i believe > > Last time i checked, Camden is in Austin, TX on Breaker Ln. > > 1-512-555-1212 Camden Industries, Inc. 401 E. Braker Lane Austin, TX 78753 (512) 339-4772 Save you the call to information! -- ------------------------------------------------------------------------------- Dixon Cole - dcole@austin.ibm.com IBM RISC/System 6000 Division, Austin, TX (512) 838-8971, T.L. 678-8971 Level 3 Support From owner-diy_efi-archive Wed Oct 4 01:15:47 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id AAA06404; Wed, 4 Oct 1995 00:33:05 GMT Return-Path: Received: from mail.telstra.com.au by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id UAA06390; Tue, 3 Oct 1995 20:33:01 -0400 Received: from mail_gw.fwall.telecom.com.au(192.148.147.10) by mail via smap (V1.3) id sma022589; Wed Oct 4 10:26:25 1995 Received: from cdn_mail.dn.itg.telecom.com.au(144.135.109.134) by mail_gw.telecom.com.au via smap (V1.3) id sma020279; Wed Oct 4 10:25:48 1995 Received: from shiva.trl.OZ.AU (shiva.trl.OZ.AU [137.147.20.34]) by cdn_mail.dn.itg.telecom.com.au (8.6.11/8.6.9) with ESMTP id KAA26401 for ; Wed, 4 Oct 1995 10:25:47 +1000 Received: (from pugsley@localhost) by shiva.trl.OZ.AU (8.6.10/8.6.12) id KAA23223 for DIY_EFI@coulomb.eng.ohio-state.edu; Wed, 4 Oct 1995 10:25:45 +1000 From: Craig Pugsley Message-Id: <199510040025.KAA23223@shiva.trl.OZ.AU> Subject: Re: [Q] EFI computers on different engines To: DIY_EFI Date: Wed, 4 Oct 1995 10:25:44 +1000 (EST) In-Reply-To: <30717EBC@gismtpgate.gi.com> from "Zublin, Bryan" at Oct 3, 95 11:20:00 am X-Mailer: ELM [version 2.4 PL20] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Length: 814 Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu > Craig writes: > > > An importer of japanese engines here have piles of 2nd hand computers > > (at $US 15 each!! :-) and pumps, injectors etc. So, if I can get a > workable > > solution with one particular type of computer that's in ready supply I > could > > sell about 1/2 a dozen straight away (a few freinds are displaying keen > > interest in EFI). > > Craig, > Who is this importer, and where are they located? > Bryan Zublin > bzublin@gi.com > It's a group called 'East Keilor Wreckers' located in Melboure, Australia. They have a guy in Japan who scours the wrecking yards to buy engines and front cuts of cars, literally brought back in container loads. Probably not worth the effort for you to get parts from here-source locally if possible. I can dig up ph/fax#s if you really need them. Craig. From owner-diy_efi-archive Wed Oct 4 01:27:38 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id AAA06445; Wed, 4 Oct 1995 00:47:36 GMT Return-Path: Received: from genesis.nred.ma.us by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id UAA06429; Tue, 3 Oct 1995 20:45:27 -0400 From: genesis!mvarc!an.bradford.ma.us!adh Received: from mvarc.UUCP by genesis.nred.ma.us (8.6.9/genesis0.0) id UAA08395; Tue, 3 Oct 1995 20:15:54 -0400 Received: from an.bradford.ma.us by mvarc.n-andover.ma.us with uucp (Smail3.1.28.1 #5) id m0Wp2nH-0002jKC; Wed, 15 May 85 08:30 EDT Message-Id: Date: Wed, 15 May 85 08:30 EDT Apparently-From: mvarc!an.bradford.ma.us!adh To: DIY_EFI Subject: Re: Ignition Book Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu From: Bruce Bowling A challenge: With all of the bright engineers on this group, can someone come up with a circuit which does the multiple spark concept maybe better than MSD had implemented? should be easy with a coil-per-cylinder approach... _______________________________________________________________________________ Andrew Hay LIFE, n: A phenomenon that resists the second law of thermodynamics adh@an.bradford.ma.us ---Schroedinger From owner-diy_efi-archive Wed Oct 4 01:37:45 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id BAA06518; Wed, 4 Oct 1995 01:35:20 GMT Return-Path: Received: from jerboa.devetwa.edu.au by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id VAA06503; Tue, 3 Oct 1995 21:34:10 -0400 Received: (from uucp@localhost) by jerboa.devetwa.edu.au (8.6.12/8.6.9) id JAA18878 for ; Wed, 4 Oct 1995 09:40:34 +0800 Received: from wpsmtp.devetwa.edu.au(163.232.4.1) by jerboa via smap (V1.3mjr) id sma018874; Wed Oct 4 09:39:45 1995 Received: from WATafe-Message_Server by wpsmtp.devetwa.edu.au with Novell_GroupWise; Wed, 04 Oct 1995 09:31:06 +0800 Message-Id: X-Mailer: Novell GroupWise 4.1 Date: Wed, 04 Oct 1995 09:32:46 +0800 From: Danny Wallace To: DIY_EFI Subject: Splitfire plugs (was Ig. Book) Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Steve Ravet writes: >The fact that the electrode is split makes no difference. >Only one arc will form. The only way to get simultaneous >arcs would be to have two wires, and either two coils or a >single dual output coil. Otherwise the arc (like humans :-) >will take the path of least resistance. Steve, In an attempt to gain vital (if only minute) increments in HP I tried a set of these plugs in my Formula Vee (Aussie version). I didn't have two wires/coils or a dual output coil. As I expected, I was not knocked over by any performance increase. The (race) circuit we tested on was about 3 km long with 13 turns. I would have thought the plugs were good for a few tenths at least over that distance. We were unable to measure any difference in lap times. Thats not to say there were none, just that we couldn't measure any due to other factors - eg driver inconsistency, lapped cars etc. After using the plugs I decided to pull one out and run the motor with the plug resting on the crankase. To my amazement the arc occasionally DID fire simultaneously to both "sides" of the elctrode - forming a bright "V". I saw it with my own eyes! What puzzled me slightly though, was the inconsistency with which it occurred, about 1 in 10 or 20. I also wondered if this arcing was only occuring at 1 in 10, with motor idleing (best case for coil energy build up), then when running with higher revs and cylinder turbulence, what would happen then? One of these days I pland to build an ignition test bench. Any body else done this ? Still wondering... Danny Wallace wallad@devetwa.edu.au From owner-diy_efi-archive Wed Oct 4 04:38:03 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id EAA06786; Wed, 4 Oct 1995 04:31:25 GMT Return-Path: Received: from pine.liii.com by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id AAA06772; Wed, 4 Oct 1995 00:31:22 -0400 Received: from rowan.liii.com by pine.liii.com with SMTP (5.67b/15Feb94-Long Island Information) id AA14055; Wed, 4 Oct 1995 00:31:55 -0400 Received: by rowan.liii.com (5.67b/15Feb94-Long Island Information) id AA28163; Wed, 4 Oct 1995 00:31:23 -0400 Date: Wed, 4 Oct 1995 00:31:22 -0400 (EDT) From: Bob Valentine To: DIY_EFI Subject: Re: Edelbrock Pro-Flo EFI system In-Reply-To: <199510031757.MAA06885@dclsn28.cen.uiuc.edu> Message-Id: Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu > Re: flexibility: Don't you provide them with a description of your engine > mods, especially cam numbers, and they send you a PROM? Plus I think it > has a narrower range of on-the-spot tuning with a little control box. I don't have hard fact on this, but I do recall hearing the same thing - you give them specs, they burn you a rom. I have no problem with that, as long as they supply you with the proper information to burn your own, in the event that you make changes that can't be compensated for by adjusting the box. Otherwise, something tells me that you'd find yourself paying $$$ everytime you need a new fuel map. Does the new Holley system also control spark? --> Bob Valentine <-- --> ravalent@liii.com <-- "Experience varies directly with equipment ruined" From owner-diy_efi-archive Wed Oct 4 05:35:58 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id FAA06895; Wed, 4 Oct 1995 05:34:31 GMT Return-Path: Received: from ix9.ix.netcom.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id BAA06881; Wed, 4 Oct 1995 01:34:27 -0400 Received: from by ix9.ix.netcom.com (8.6.12/SMI-4.1/Netcom) id WAA17756; Tue, 3 Oct 1995 22:34:07 -0700 Date: Tue, 3 Oct 1995 22:34:07 -0700 Message-Id: <199510040534.WAA17756@ix9.ix.netcom.com> From: arthurok@ix.netcom.com (ARTHUR OKUN ) Subject: Re: Splitfire plugs (was Ig. Book) To: DIY_EFI Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu You wrote: > >Steve Ravet writes: >>The fact that the electrode is split makes no difference. >>Only one arc will form. The only way to get simultaneous >>arcs would be to have two wires, and either two coils or a >>single dual output coil. Otherwise the arc (like humans :-) >>will take the path of least resistance. > >Steve, >In an attempt to gain vital (if only minute) increments in HP I >tried a set of these plugs in my Formula Vee (Aussie version). I >didn't have two wires/coils or a dual output coil. >As I expected, I was not knocked over by any performance >increase. The (race) circuit we tested on was about 3 km long >with 13 turns. I would have thought the plugs were good for a >few tenths at least over that distance. >We were unable to measure any difference in lap times. Thats not >to say there were none, just that we couldn't measure any due to >other factors - eg driver inconsistency, lapped cars etc. After >using the plugs I decided to pull one out and run the motor with >the plug resting on the crankase. To my amazement the arc >occasionally DID fire simultaneously to both "sides" of the >elctrode - forming a bright "V". I saw it with my own eyes! >What puzzled me slightly though, was the inconsistency with which >it occurred, about 1 in 10 or 20. I also wondered if this arcing >was only occuring at 1 in 10, with motor idleing (best case for >coil energy build up), then when running with higher revs and >cylinder turbulence, what would happen then? > >One of these days I pland to build an ignition test bench. Any >body else done this ? > >Still wondering... >Danny Wallace >wallad@devetwa.edu.au > > AS FAR AS I AM CONCERNED AFRESH SET OF THE PROPER "CHAMPION"OR EQUIVILENT PLUGS WILL WORK JUST AS WELL . THE ONLY ONES THAT SEEM KIND OF INTERESTING ARE THE NEW BOSCH PLATINUM FINE WIRE TYPE BUT I KNOW SOMEONE WHO USED A SET BUT HAD CARBON FOWLING PROBLEMS ON AN OVERLY RICH ENGINE ALSO A ENGINEER FRIEND OF MINE SUGGESTS REPLACING INSTED OF CLEANING BECAUSE OF THE POSSIBILITY OF INSULATOR CRACKING From owner-diy_efi-archive Wed Oct 4 12:26:38 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id MAA07343; Wed, 4 Oct 1995 12:23:29 GMT Return-Path: Received: from echo.i-link.net by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id IAA07329; Wed, 4 Oct 1995 08:23:25 -0400 Received: from sanantonio-1-11.i-link.net by echo.i-link.net (AIX 3.2/UCB 5.64/4.03) id AA30335; Wed, 4 Oct 1995 07:22:57 -0500 Message-Id: <9510041222.AA30335@echo.i-link.net> Comments: Authenticated sender is From: "Sam L. Smith" Organization: SamWise InfoSystems To: DIY_EFI Date: Wed, 4 Oct 1995 07:20:11 -6000 Subject: Bosch Platinum Plugs Priority: normal X-Mailer: Pegasus Mail for Windows (v2.01) Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu I have used Bosch Platinim plugs for a number of years in a number of different engines, and have noted subjective HP increase and very long life (never felt compelled to change or even examine plugs). This would be a glowing review except... Once in my wife's 360 C.I.D. Ramcharger, she came home complaining of a miss and loud popping sound under the hood. On examination, I noticed that one of the Bosch Platinum plugs had a leak between the insulator and the body. When attempting to remove the plug for replacement, the body twisted off at the top of the threads, leaving me with the insulator and hex part of the plug body in my hand! Excessive torque was not to blame here; the body twisted off very easily. Although this could have been a *major* bummer, I was able to remove the remainder of the shell with a large 'easy-out' and avoided having to disassemble the engine. Although I love the performance of these plugs, I am hesitant to use them again. Has anyone else had a similar experience with Bosch Platinum (or other brands, for that matter)? Sam ----- "When the going gets weird, the weird turn pro." - HST Sam_L_Smith@i-link.net Sam L. Smith From owner-diy_efi-archive Wed Oct 4 12:30:37 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id MAA07374; Wed, 4 Oct 1995 12:30:28 GMT Return-Path: Received: from kaiwan009.kaiwan.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id IAA07360; Wed, 4 Oct 1995 08:30:25 -0400 Received: (from douglas@localhost) by kaiwan009.kaiwan.com (8.6.9/8.6.12) id FAA29664; Wed, 4 Oct 1995 05:30:05 -0700 *** KAIWAN Internet Access *** Date: Wed, 4 Oct 1995 05:30:04 -0700 (PDT) From: Black Feather Electronics To: Robert Gallant cc: DIY_EFI Subject: Re: Modifing O2 output In-Reply-To: <9509271432.AA28955@oasys.dt.navy.mil> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu On Wed, 27 Sep 1995, Robert Gallant wrote: > I need to modify the output of my O2 sensor (specifically I need to drop the > voltage my computer sees from the sensor). I called around to many places to find out what the output is on most O2 sensors and it seems they are mostly 0 to 1 volt output. The way to test this is to take your sensor, put it into a vice and fire up your propane torch. The sensor must get hot before it puts out proper voltage, but you will find when you put the torch all the way up to the sensor (making it full of propane) there will be no oxygen there so it will read as if there was none. Interesting what you can come up with in your garage sometimes! Please don't use your cutting / welding torch on it, the thing isn't superman. Notice I said PROPANE. The best way to change the voltage to a lower voltage would be a resistor devider, using 100K or 50K. If you are going to use a op amp, you need to watch out for NOISE being amplified or picked up by the op amp. Suggest you connect a 1 uf or 10 uf cap like this.... SENSOR ----------RESISTOR---------------------OPAMP INPUT>>>> | 10 uf CAP | ----- --- - This should filter out any noise, but you have to pick a CAP that will allow your computer to read changes within the time you want (meaning a 10 uf CAP will show changes slower than a 1 uf). You can also get a pretty good reading in your driveway, at idle. When you rev up the car, pumping on the pedal to make it real rich, the reading changes quite a bit. Plus you can run a extension cord out to your scope! You will also get to see the noise your circuit is picking up. The people next door might think you are a bit strange, but arn't we all? Some of these stupid sensors are only one wire, and depend on a chassis ground for a return. I added my own ground wire for sense as near the sensor as I could. ------------------------------------------------------------------------- Black Feather Electronics | Home of the U-HC11 Microcontroller 645 Temple 7B | Boards, Kits and other 68HC11 stuff Long Beach California 90814 | Email for info or visit the www page Info & Orders: (800) 526-3717 | InterNet: BFE Tech Support: (310) 434-5641 | Web: "http://www.kaiwan.com/~douglas" From owner-diy_efi-archive Wed Oct 4 13:11:53 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id NAA07500; Wed, 4 Oct 1995 13:11:32 GMT Return-Path: Received: from dekalb.vf.mmc.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id JAA07486; Wed, 4 Oct 1995 09:11:10 -0400 From: ducharme@eiss1.psf.ge.com Received: from franklin.vf.mmc.com (franklin.VF.GE.COM [166.17.5.51]) by dekalb.vf.mmc.com (8.6.12/8.6.12) with ESMTP id JAA26688 for ; Wed, 4 Oct 1995 09:10:54 -0400 Received: from orrqms2.psf.ge.com (orrqms2.PSF.GE.COM [166.16.144.2]) by franklin.vf.mmc.com (8.6.12/8.6.10) with SMTP id JAA08968 for ; Wed, 4 Oct 1995 09:10:53 -0400 Received: from eiss1.psf.ge.com (orrqms4.PSF.GE.COM) by orrqms2.psf.ge.com (4.1/MMC Sun server N-3.4) id AA16751; Wed, 4 Oct 95 09:14:31 EDT Received: by eiss1.psf.ge.com (4.1/GEA Sun client 1.19) id AA28609; Wed, 4 Oct 95 09:14:15 EDT Date: Wed, 4 Oct 95 09:14:15 EDT Message-Id: <9510041314.AA28609@eiss1.psf.ge.com> To: diy_efi Subject: Hi Folks Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu I'm an very non-traditional EE student and am starting work on my thesis project which will be a microcontroller-based EFI for aircraft(!) use. My prototype subject is a 3 1/2 HP Briggs & Stratton in a test stand that may find its way into a radio controlled airframe if all goes exceedingly well, but for now I will be concentrating on characterizing the fuel map of the engine and developing a hardware configuration for EFI. Does anyone have any recommendations for pre-packaged microcontroller boards, along with sources? Cliff Ducharme \ _______|0|_______ "Wing and a prayer..." b \d From owner-diy_efi-archive Wed Oct 4 13:11:54 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id NAA07473; Wed, 4 Oct 1995 13:08:57 GMT Return-Path: Received: from ra.ibr.cs.tu-bs.de by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id JAA07459; Wed, 4 Oct 1995 09:08:30 -0400 Received: from kastor [134.169.34.8] by ra.ibr.cs.tu-bs.de (8.6.10/tubsibr) with ESMTP id OAA01678 for ; Wed, 4 Oct 1995 14:08:07 +0100 Received: from knick@localhost by kastor.ibr.cs.tu-bs.de (8.6.10/tubsibr) id OAA05792 for DIY_EFI@coulomb.eng.ohio-state.edu; Wed, 4 Oct 1995 14:08:05 +0100 From: Jens Knickmeyer Message-Id: <199510041308.OAA05792@kastor.ibr.cs.tu-bs.de> Subject: Re: Bosch Platinum Plugs To: DIY_EFI Date: Wed, 4 Oct 95 14:08:05 MET In-Reply-To: <9510041222.AA30335@echo.i-link.net> from "Sam L. Smith" at Oct 4, 95 07:20:11 am Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu wrote: > > I have used Bosch Platinim plugs for a number of years in a number of > different engines, and have noted subjective HP increase and very > long life (never felt compelled to change or even examine plugs). > > This would be a glowing review except... > > Once in my wife's 360 C.I.D. Ramcharger, she came home complaining of > a miss and loud popping sound under the hood. On examination, I > noticed that one of the Bosch Platinum plugs had a leak between the > insulator and the body. When attempting to remove the plug for > replacement, the body twisted off at the top of the threads, leaving > me with the insulator and hex part of the plug body in my hand! > Excessive torque was not to blame here; the body twisted off very > easily. > > Although this could have been a *major* bummer, I was able to remove > the remainder of the shell with a large 'easy-out' and avoided having > to disassemble the engine. > > Although I love the performance of these plugs, I am hesitant to use > them again. > > Has anyone else had a similar experience with Bosch Platinum (or > other brands, for that matter)? > > Sam > > ----- > "When the going gets weird, the weird turn pro." - HST > > Sam_L_Smith@i-link.net Sam L. Smith > My engine,(VW, 1.3l, 83kW, G-Lader) needs the Bosch W5DP0, platinum spark plugs (indicated by the "P") with a special form of electrodes (as indicated by the "0", zero, not "oh"). After 40000km, I buyed a new set (4x30DM), removed the old plugs and ... looked a bit puzzled. There was no difference between the new and the old plugs. This was exactly what the Bosch guy who sold me the spark plugs had told me (I did not believe it). From what he said, the Platinums last VERY long, esp. those zero-types with the special electrodes. He said the plugs are mostly used in racing engines and was surprised to find them in a samll, very common car. There was a discussion in "rec.autos.makers.vw.watercooled". All postings said the same: Platinums last long (if not forever) and in some cases help you fixing idle problems. Some people said they got increased hp, but that was a minority. Any other experiences? Jens. From owner-diy_efi-archive Wed Oct 4 14:04:30 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id NAA07705; Wed, 4 Oct 1995 13:54:41 GMT Return-Path: Received: from gmi.edu by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id JAA07691; Wed, 4 Oct 1995 09:54:37 -0400 Received: from apollo (apollo.gmi.edu) by gmi.edu (5.x/SMI-SVR4) id AA13904; Wed, 4 Oct 1995 09:58:12 -0400 Received: by apollo (5.0/SMI-SVR4) id AA08878; Wed, 4 Oct 1995 09:52:22 +0500 Date: Wed, 4 Oct 1995 09:52:21 -0400 (EDT) From: "Graydon D. Stuckey" X-Sender: graydon@apollo To: DIY_EFI Cc: ravelent@liii.com Subject: Holley Projection In-Reply-To: Message-Id: Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu On Wed, 4 Oct 1995, Bob Valentine wrote: > adjusting the box. Otherwise, something tells me that you'd find > yourself paying $$$ everytime you need a new fuel map. > > Does the new Holley system also control spark? > > --> Bob Valentine <-- > --> ravalent@liii.com <-- > "Experience varies directly with equipment ruined" Bob, Although I haven't used the Holley system exactly, I do know the guys that developed it for Holley (the NEW digital system that is) and I am pretty sure (99.9%) it has ignition capability. I do know that the ECU is very similar to the one I am using, the software is very good, approaching the levels of OEM automakers systems. BTW, I appreciate your quote. It is very true!:-) Later, Graydon D. Stuckey graydon@apollo.gmi.edu '86 Audi 5000 CS Turbo Quattro, GDS Racing Stage II '83 Mazda RX7 w/13B, GDS Racing Stage 58474 From owner-diy_efi-archive Wed Oct 4 15:05:13 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id PAA08186; Wed, 4 Oct 1995 15:01:01 GMT Return-Path: Received: from oasys.dt.navy.mil by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id LAA08172; Wed, 4 Oct 1995 11:00:57 -0400 Received: from gallant.dt.navy.mil by oasys.dt.navy.mil (5.61/oasys.dt.navy.mil) id AA16909; Wed, 4 Oct 95 11:00:38 EDT Date: Wed, 4 Oct 95 11:00:38 EDT Message-Id: <9510041500.AA16909@oasys.dt.navy.mil> From: "Robert Gallant" To: DIY_EFI Subject: Re: Holley Projection Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu In message writes: > On Wed, 4 Oct 1995, Bob Valentine wrote: > > > adjusting the box. Otherwise, something tells me that you'd find > > yourself paying $$$ everytime you need a new fuel map. > > > > Does the new Holley system also control spark? > Although I haven't used the Holley system exactly, I do know the > guys that developed it for Holley (the NEW digital system that is) and I > am pretty sure (99.9%) it has ignition capability. I do know that the > ECU is very similar to the one I am using, the software is very good, > approaching the levels of OEM automakers systems. I missed Bob's question, but: You can adjust the maps for injector volume, acceleration compensation, temperature compensation, O2 compensation, and spark advance. Its not the easiest thing to do. There are a lot of data points. The wire harness is designed to plug into a Ford or GM distributor Later Rob gallant@oasys.dt.navy.mil From owner-diy_efi-archive Wed Oct 4 15:27:48 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id PAA08389; Wed, 4 Oct 1995 15:24:14 GMT Return-Path: Received: from firewall by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id LAA08375; Wed, 4 Oct 1995 11:24:07 -0400 Received: by firewall (5.0/SMI-SVR4) id AA11504; Wed, 4 Oct 1995 11:25:41 +0500 Date: Wed, 4 Oct 1995 11:25:41 +0500 From: jcook@apt.com (Jim Cook) Message-Id: <9510041525.AA11504@firewall> To: DIY_EFI Subject: RE>Platinum Plugs Content-Length: 1430 Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu -Arthur Okin ? writes: -THE ONLY ONES THAT SEEM KIND OF INTERESTING ARE THE NEW BOSCH PLATINUM -FINE WIRE TYPE BUT I KNOW SOMEONE WHO USED A SET BUT HAD CARBON -FOWLING PROBLEMS ON AN OVERLY RICH ENGINE ALSO A ENGINEER FRIEND -OF MINE SUGGESTS REPLACING INSTED OF CLEANING BECAUSE OF THE -POSSIBILITY OF INSULATOR CRACKING >Jens writes: >There was no difference between the new and the old plugs. >This was exactly what the Bosch guy who sold me the spark plugs had >told me (I did not believe it). From what he said, the Platinums last >VERY long, esp. those zero-types with the special electrodes. He said >the plugs are mostly used in racing engines and was surprised to find >them in a samll, very common car. I have not had a dirt bike in about 8 years. But at that time the motocross bikes came with platinum plugs. These had the very thin electode that has been discussed. I was suprised to hear someone say that they had bad luck with them fouling more than standard plugs. As I understand it, they were used in dirt bikes because they resist oil and carbon fouling (two stroke). One of the reasons for this is supposed to be that there is less parallel surface between electrodes for deposits to accumulate or get lodged in. A second reason may also be that the harder electrode tends to resist wear keep a sharp edge for the spark to jump from. This may be more evident in a comparison on aging plugs. Jim Cook From owner-diy_efi-archive Wed Oct 4 15:28:53 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id PAA08411; Wed, 4 Oct 1995 15:26:54 GMT Return-Path: Received: from gate.gau.hu by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id LAA08370; Wed, 4 Oct 1995 11:22:15 -0400 Received: from eng.gau.hu by gate.gau.hu (MX V4.1 AXP) with SMTP; Wed, 04 Oct 1995 16:19:21 GMT+1 Received: from ENG/MERCQUEUE by eng.gau.hu (Mercury 1.13); Wed, 4 Oct 95 16:44:01 GMT+1 Received: from MERCQUEUE by ENG (Mercury 1.13); Wed, 4 Oct 95 16:43:52 GMT+1 From: "Lajber Zoltan JHT" To: DIY_EFI Date: Wed, 4 Oct 1995 16:43:44 GMT+1 Subject: Re: Bosch Platinum Plugs Priority: normal X-mailer: Pegasus Mail v3.22 Message-ID: <603C3D53BEF@eng.gau.hu> Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu "Sam L. Smith" wrote: > I have used Bosch Platinim plugs for a number of years in a number of > different engines, and have noted subjective HP increase and very It's same for me > Has anyone else had a similar experience with Bosch Platinum (or > other brands, for that matter)? Not exactly same problem, but when I began to use unleaded fuel in Yamaha YZ250, I have to "change" the prefered brand of spark plugs. Here, in Europe, several kind of engines and spark plug marks, but, as I see: Each engine prefer that brad of spark plug, which came from same counrty. For example: Champion - Franche ( Peugeot, Citroen) Bosch - Germany Magnetti-Marelli - Fiat, and Lada from russian, because it's design come from Italy. Or, even more, the former estern block car, the famous Trabant "like" "Isolator". If I change it to something else, it will be change the lifetime or/and power. For example, with Bosch, better performance in low speed, but very short lifetime! From owner-diy_efi-archive Wed Oct 4 19:07:44 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id SAA08858; Wed, 4 Oct 1995 18:55:43 GMT Return-Path: Received: from alpha.xerox.com by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id OAA08844; Wed, 4 Oct 1995 14:55:15 -0400 From: Brad_Miller@so.xerox.com Received: from pandora ([13.250.20.7]) by alpha.xerox.com with SMTP id <15612(3)>; Wed, 4 Oct 1995 11:54:30 PDT Received: from x-wb-ngm-mime.cinops.xerox.com by pandora (4.1/SMI-4.1) id AA15726; Wed, 4 Oct 95 15:08:58 EDT X-Nvlenv-01Date-Transferred: 04-Oct-1995 13:38:53 -0600; at X-SO-AREA-HUB.XEROX X-Nvlenv-01Date-Transferred: 4-Oct-1995 14:44:28 -0400; at X-WB-NGM-MIME.XEROX X-Nvlenv-01Date-Posted: 04-Oct-1995 13:44:38 -0600; at X-SO-4260-MS1.XEROX Date: Wed, 4 Oct 1995 10:42:57 PDT To: DIY_EFI Subject: Fuel injection questions - - Message-Id: <"E9A472308175657C@X-SO-4260-MS1.XEROX"@-SMF-> Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Does anyone know for sure how Chryslers are on injection setup? Do they do a batch fire? Is the setup called MPI or SPFI? Multipoint vs. Sequential Point? Could someone explain differences? I think I've got the definitions nailed down - but I want to be sure . . . . Thanks in advance for the info! Bradley Miller Xerox Business Services, Kansas City Midwest Shelby Dodge Automobile Club Inc. Email: Brad_Miller@so.xerox.com Alternate: Brad2dbone@aol.com From owner-diy_efi-archive Wed Oct 4 19:27:14 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id TAA08915; Wed, 4 Oct 1995 19:21:58 GMT Return-Path: Received: from anvil.gatech.edu by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id PAA08901; Wed, 4 Oct 1995 15:21:54 -0400 Received: from acmew.gatech.edu (gt0035b@acmew.gatech.edu [130.207.165.42]) by anvil.gatech.edu (8.6.12/8.6.12) with ESMTP id PAA27155 for ; Wed, 4 Oct 1995 15:21:37 -0400 From: gt0035b@prism.gatech.edu (Henry David Sommer) Received: (gt0035b@localhost) by acmew.gatech.edu (8.6.12/8.6.12) id PAA22174 for DIY_EFI@coulomb.eng.ohio-state.edu; Wed, 4 Oct 1995 15:21:35 -0400 Message-Id: <199510041921.PAA22174@acmew.gatech.edu> Subject: Re: ion gap sensor To: DIY_EFI Date: Wed, 4 Oct 1995 15:21:35 -0400 (EDT) In-Reply-To: <199510030201.VAA20165@eagle.natinst.com> from "Mike Klopfer" at Oct 2, 95 09:01:35 pm X-Mailer: ELM [version 2.4 PL24] Content-Type: text Content-Length: 695 Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Mike Klopfer wrote > > > There was a recent post about measuring the spark current to get information > on the combustion. There was some good discussion on this in march of this > year and the following recent references were given by r.dingli@ee.mu.oz.au The latest edition of Automtive Engineering, the publication of SAE, also has an article. I haven't read it yet but it looks good. Henry Sommer | gt0035b@prism.gatech.edu | Georgia Institute of Technology Year 88 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | ME and MATE | FSAE since 92 car # 66 | 23 | 23 | 42 | 42 | 99 | 99 | ? | Maintainer of FSAE mailing list place 11 | 2 | 6 | 23 | 3 | 6 | 11 | ? | FSAE-request@list.gatech.edu From owner-diy_efi-archive Wed Oct 4 23:02:15 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id WAA19824; Wed, 4 Oct 1995 22:57:52 GMT Return-Path: Received: from ix6.ix.netcom.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id SAA19810; Wed, 4 Oct 1995 18:57:48 -0400 Received: from by ix6.ix.netcom.com (8.6.12/SMI-4.1/Netcom) id PAA17234; Wed, 4 Oct 1995 15:57:29 -0700 Date: Wed, 4 Oct 1995 15:57:29 -0700 Message-Id: <199510042257.PAA17234@ix6.ix.netcom.com> From: arthurok@ix.netcom.com (ARTHUR OKUN ) Subject: Re: Bosch Platinum Plugs To: DIY_EFI Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu You wrote: > >I have used Bosch Platinim plugs for a number of years in a number of >different engines, and have noted subjective HP increase and very >long life (never felt compelled to change or even examine plugs). > >This would be a glowing review except... > >Once in my wife's 360 C.I.D. Ramcharger, she came home complaining of >a miss and loud popping sound under the hood. On examination, I >noticed that one of the Bosch Platinum plugs had a leak between the >insulator and the body. When attempting to remove the plug for >replacement, the body twisted off at the top of the threads, leaving >me with the insulator and hex part of the plug body in my hand! >Excessive torque was not to blame here; the body twisted off very >easily. > >Although this could have been a *major* bummer, I was able to remove >the remainder of the shell with a large 'easy-out' and avoided having >to disassemble the engine. > >Although I love the performance of these plugs, I am hesitant to use >them again. > >Has anyone else had a similar experience with Bosch Platinum (or >other brands, for that matter)? > >Sam > >----- >"When the going gets weird, the weird turn pro." - HST > >Sam_L_Smith@i-link.net Sam L. Smith > clean the spark plug hole with a "chasing tap" and use alittle antiseize compound on the new plug threads champion claims that their plugs have an antiseize coating From owner-diy_efi-archive Wed Oct 4 23:10:28 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA19864; Wed, 4 Oct 1995 23:09:09 GMT Return-Path: Received: from ix4.ix.netcom.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id TAA19850; Wed, 4 Oct 1995 19:09:07 -0400 Received: from by ix4.ix.netcom.com (8.6.12/SMI-4.1/Netcom) id QAA10336; Wed, 4 Oct 1995 16:08:47 -0700 Date: Wed, 4 Oct 1995 16:08:47 -0700 Message-Id: <199510042308.QAA10336@ix4.ix.netcom.com> From: arthurok@ix.netcom.com (ARTHUR OKUN ) Subject: Re: RE>Platinum Plugs To: DIY_EFI Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu You wrote: > > >-Arthur Okin ? writes: >-THE ONLY ONES THAT SEEM KIND OF INTERESTING ARE THE NEW BOSCH PLATINUM >-FINE WIRE TYPE BUT I KNOW SOMEONE WHO USED A SET BUT HAD CARBON >-FOWLING PROBLEMS ON AN OVERLY RICH ENGINE ALSO A ENGINEER FRIEND >-OF MINE SUGGESTS REPLACING INSTED OF CLEANING BECAUSE OF THE >-POSSIBILITY OF INSULATOR CRACKING > >>Jens writes: >>There was no difference between the new and the old plugs. >>This was exactly what the Bosch guy who sold me the spark plugs had >>told me (I did not believe it). From what he said, the Platinums last >>VERY long, esp. those zero-types with the special electrodes. He said >>the plugs are mostly used in racing engines and was surprised to find >>them in a samll, very common car. > >I have not had a dirt bike in about 8 years. But at that time the motocross >bikes came with platinum plugs. These had the very thin electode that has >been discussed. I was suprised to hear someone say that they had bad luck >with them fouling more than standard plugs. As I understand it, they were >used in dirt bikes because they resist oil and carbon fouling (two stroke). >One of the reasons for this is supposed to be that there is less parallel >surface between electrodes for deposits to accumulate or get lodged in. A >second reason may also be that the harder electrode tends to resist wear >keep a sharp edge for the spark to jump from. This may be more evident in >a comparison on aging plugs. > >Jim Cook > the no cleaning goes for all types of automotive plugs ithink what happened was that the insulator was fouled with carbon. i bet those bosch plug will go 100000 miles in a properly operating engine running on unleaded fuel propane or nat gas even longer From owner-diy_efi-archive Thu Oct 5 02:22:03 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id CAA20226; Thu, 5 Oct 1995 02:17:57 GMT Return-Path: Received: from wave.sheridan.wy.us by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id WAA20212; Wed, 4 Oct 1995 22:17:52 -0400 Received: from (slip2.wave.sheridan.wy.us [204.120.134.42]) by wave.sheridan.wy.us (8.6.10/8.6.9) with SMTP id UAA25530 for ; Wed, 4 Oct 1995 20:33:19 -0600 Message-Id: Date: Wed, 4 Oct 95 19:52:35 PDT From: jac@wave.sheridan.wy.us (john carroll) To: DIY_EFI Subject: Reply to Cilff Ducharme [not private] Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Cliff Ducharme and any one else Cliff, I could not seem to make your Email address work and am replying here. I have built a number of sucessful aircraft ignition systems and am about to build an injection system. Aircraft concerns and needs are so different from the others on DIY_EFI that it is a different world. It is reassuring to see that someone else is concerned with aircraft engines. The system is base on GM DIS hardware (distrbutorless ignition system). I figure that if GM will build a base and coil system that works and controls so nicely that there is little reason to reinvent that part of the system. The GM hardware uses a bunch of power, but works down to 9V or less. This allows the cars to start on cold mornings when the system voltage is pulled down from heavy cranking. My controller based on Signetics' 8X550 processor. This 8031 derivitive is plenty fast and has sufficient AD input to process every input I care about. I use a Harris automotive part in the controller to watch for pre igniton and dentonation. The the system uses a timing disk mounted behind the prop for timing. I keep one magneto functional for a backup. At present spark timing is a calculated function of MAP and RPM. There is no mapping and the calculations can be modified easily. The timing is dropped back if preignition is sensed and all advance drops out if the engine over revs. Various operational parameters are output to a four line by 20 character LCD. The data is also continuously dumped to a serial port. Several reassignable buttons can be used to change the operation in service. This system would great job of running your lawn mower. The GM module will work fine with just one coil installed. You could get to work on the fuel injection and forget the ignition and controller development. I have some ideas, developed over a considerable period of time, about how an aircraft efi should work. I really want to work on the injection system but find myself short of time. Would you want or appreciate more discussion? What are your goals for the system your are developing? What are your hardware and software skills? What test facility do you have available? I am an EE, '70 with too much to do. I am good at prototypes and machine work. I have experimental catagory aircraft available for testing and my friends are also pilots who have become sympathetic to testing equipment. I prefer 8031 type controllers. My software is a set of assembler modules tied together with compiled basic for the IO to the LCD and serial port. Ignition management takes up about 15 percent of the controllers time at 3000 rpm. The controller is running at 12E6 now. It could be pushed to 16 MHz easily. John Carroll 307 674-8469 fax 674-4510 --UAA25219.812858672/wave.sheridan.wy.us-- From owner-diy_efi-archive Thu Oct 5 02:49:11 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id CAA20274; Thu, 5 Oct 1995 02:45:44 GMT Return-Path: Received: from genesis.nred.ma.us by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id WAA20260; Wed, 4 Oct 1995 22:45:41 -0400 From: genesis!mvarc!an.bradford.ma.us!adh Received: from mvarc.UUCP by genesis.nred.ma.us (8.6.9/genesis0.0) id WAA02307; Wed, 4 Oct 1995 22:44:04 -0400 Received: from an.bradford.ma.us by mvarc.n-andover.ma.us with uucp (Smail3.1.28.1 #5) id m0t0et4-0002jKC; Wed, 4 Oct 95 21:14 EDT Message-Id: Date: Wed, 4 Oct 95 21:14 EDT Apparently-From: mvarc!an.bradford.ma.us!adh To: DIY_EFI Subject: Re: Bosch Platinum Plugs Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu From: Jens Knickmeyer There was a discussion in "rec.autos.makers.vw.watercooled". All postings said the same: Platinums last long (if not forever) and in some cases help you fixing idle problems. Some people said they got increased hp, but that was a minority. Any other experiences? -way- back in the '60s, my dad put bosch platinums in his saab 96 [over $2 each back then!] and found the car was more tolerant of low-octane fuel. _______________________________________________________________________________ Andrew Hay LIFE, n: A phenomenon that resists the second law of thermodynamics adh@an.bradford.ma.us ---Schroedinger From owner-diy_efi-archive Thu Oct 5 02:49:28 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id CAA20297; Thu, 5 Oct 1995 02:46:10 GMT Return-Path: Received: from genesis.nred.ma.us by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id WAA20283; Wed, 4 Oct 1995 22:46:04 -0400 From: genesis!mvarc!an.bradford.ma.us!adh Received: from mvarc.UUCP by genesis.nred.ma.us (8.6.9/genesis0.0) id WAA02308; Wed, 4 Oct 1995 22:44:06 -0400 Received: from an.bradford.ma.us by mvarc.n-andover.ma.us with uucp (Smail3.1.28.1 #5) id m0t0f2n-0002jKC; Wed, 4 Oct 95 21:24 EDT Message-Id: Date: Wed, 4 Oct 95 21:24 EDT Apparently-From: mvarc!an.bradford.ma.us!adh To: DIY_EFI Subject: Re: RE>Platinum Plugs Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu From: jcook@apt.com (Jim Cook) I have not had a dirt bike in about 8 years. But at that time the motocross bikes came with platinum plugs. These had the very thin electode that has been discussed. I was suprised to hear someone say that they had bad luck with them fouling more than standard plugs. As I understand it, they were used in dirt bikes because they resist oil and carbon fouling (two stroke). One of the reasons for this is supposed to be that there is less parallel surface between electrodes for deposits to accumulate or get lodged in. A second reason may also be that the harder electrode tends to resist wear keep a sharp edge for the spark to jump from. This may be more evident in a comparison on aging plugs. platinum has the highest melting point of any element, so the electrode can run hotter than ordinary plugs. _______________________________________________________________________________ Andrew Hay LIFE, n: A phenomenon that resists the second law of thermodynamics adh@an.bradford.ma.us ---Schroedinger From owner-diy_efi-archive Thu Oct 5 06:03:30 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id FAA20969; Thu, 5 Oct 1995 05:58:38 GMT Return-Path: Received: from ix7.ix.netcom.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id BAA20955; Thu, 5 Oct 1995 01:58:32 -0400 Received: from by ix7.ix.netcom.com (8.6.12/SMI-4.1/Netcom) id WAA26501; Wed, 4 Oct 1995 22:58:13 -0700 Date: Wed, 4 Oct 1995 22:58:13 -0700 Message-Id: <199510050558.WAA26501@ix7.ix.netcom.com> From: arthurok@ix.netcom.com (ARTHUR OKUN ) Subject: Re: RE>Platinum Plugs To: DIY_EFI Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu You wrote: > > From: jcook@apt.com (Jim Cook) > > I have not had a dirt bike in about 8 years. But at that time the > motocross bikes came with platinum plugs. These had the very thin > electode that has been discussed. I was suprised to hear someone > say that they had bad luck with them fouling more than standard > plugs. As I understand it, they were used in dirt bikes because > they resist oil and carbon fouling (two stroke). One of the > reasons for this is supposed to be that there is less parallel > surface between electrodes for deposits to accumulate or get > lodged in. A second reason may also be that the harder electrode > tends to resist wear keep a sharp edge for the spark to jump > from. This may be more evident in a comparison on aging plugs. > >platinum has the highest melting point of any element, so the >electrode can run hotter than ordinary plugs. >_______________________________________________________________________ ________ >Andrew Hay > LIFE, n: A phenomenon that resists the second law of thermodynamics >adh@an.bradford.ma.us ---Schroedi nger > i didnot say more often than standard plugs acually the car owner decided to use cheaper throw away types to save money when they did foul the bosch plugs are about 3 times the price of a standard oem type plug "ie champion,ac ,autolite" From owner-diy_efi-archive Thu Oct 5 06:11:54 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id GAA21011; Thu, 5 Oct 1995 06:10:57 GMT Return-Path: Received: from ix9.ix.netcom.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id CAA20997; Thu, 5 Oct 1995 02:10:54 -0400 Received: from by ix9.ix.netcom.com (8.6.12/SMI-4.1/Netcom) id XAA05757; Wed, 4 Oct 1995 23:10:22 -0700 Date: Wed, 4 Oct 1995 23:10:22 -0700 Message-Id: <199510050610.XAA05757@ix9.ix.netcom.com> From: arthurok@ix.netcom.com (ARTHUR OKUN ) Subject: Re: Reply to Cilff Ducharme [not private] To: DIY_EFI Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu You wrote: > >Cliff Ducharme and any one else > >Cliff, I could not seem to make your Email address work and am replying >here. > >I have built a number of sucessful aircraft ignition systems and am about >to build an injection system. Aircraft concerns and needs are so >different from the others on DIY_EFI that it is a different world. It is >reassuring to see that someone else is concerned with aircraft engines. > >The system is base on GM DIS hardware (distrbutorless ignition >system). I figure that if GM will build a base and coil system that works >and controls so nicely that there is little reason to reinvent that part of the >system. The GM hardware uses a bunch of power, but works down to 9V >or less. This allows the cars to start on cold mornings when the system >voltage is pulled down from heavy cranking. > >My controller based on Signetics' 8X550 processor. This 8031 >derivitive is plenty fast and has sufficient AD input to process every input >I care about. I use a Harris automotive part in the controller to watch for >pre igniton and dentonation. > >The the system uses a timing disk mounted behind the prop for timing. I >keep one magneto functional for a backup. At present spark timing is a >calculated function of MAP and RPM. There is no mapping and the >calculations can be modified easily. The timing is dropped back if >preignition is sensed and all advance drops out if the engine over revs. > >Various operational parameters are output to a four line by 20 character >LCD. The data is also continuously dumped to a serial port. Several >reassignable buttons can be used to change the operation in service. > >This system would great job of running your lawn mower. The GM >module will work fine with just one coil installed. You could get to work on >the fuel injection and forget the ignition and controller development. > >I have some ideas, developed over a considerable period of time, about >how an aircraft efi should work. I really want to work on the injection >system but find myself short of time. > > >Would you want or appreciate more discussion? >What are your goals for the system your are developing? >What are your hardware and software skills? >What test facility do you have available? > >I am an EE, '70 with too much to do. I am good at prototypes and >machine work. I have experimental catagory aircraft available for testing >and my friends are also pilots who have become sympathetic to testing >equipment. > >I prefer 8031 type controllers. My software is a set of assembler >modules tied together with compiled basic for the IO to the LCD and >serial port. Ignition management takes up about 15 percent of the >controllers time at 3000 rpm. The controller is running at 12E6 now. It >could be pushed to 16 MHz easily. > >John Carroll >307 674-8469 >fax 674-4510 > > > > >--UAA25219.812858672/wave.sheridan.wy.us-- > > > > i use to be involved with light planes and are familar with bendix type magneto ignition "ie impulse couplings ,starting vibrators dual ignition and etc a company called slick magneto tried to certify a cap discharge electronic system and was turned down by the faa also the popular bendix mechanical fuel injection system always requires injector cleaning and the fuel servo costs a fortune to overhaul carbs require little maint but are prone to venturi icing "one big barrel" the faa seems to like things that donot require electrical power to run that are critical to powerplant operation but there should be no probs on an experimental cat. air craft thats it for now ps. iam finished discussing spark plugs until asked for info bye From owner-diy_efi-archive Thu Oct 5 08:49:48 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id IAA21200; Thu, 5 Oct 1995 08:45:31 GMT Return-Path: Received: from warrane.connect.com.au by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id EAA21186; Thu, 5 Oct 1995 04:45:26 -0400 Received: (from root@localhost) by warrane.connect.com.au with UUCP id SAA19290 (8.6.12/IDA-1.6 for DIY_EFI@coulomb.eng.ohio-state.edu); Thu, 5 Oct 1995 18:44:03 +1000 Received: from rd.scitec.com.au (sw35_ether) by langateway.lan.scitec.com.au with SMTP id AA23396 (5.67a/IDA-1.5 for ); Thu, 5 Oct 1995 14:56:46 +1100 Message-Id: <199510050356.AA23396@langateway.lan.scitec.com.au> Received: by rd.scitec.com.au ( 5.52 (84)/16.2) id AA06925; Thu, 5 Oct 95 13:17:39 EST Date: Thu, 5 Oct 95 13:17:39 EST From: Jorgen Othman To: DIY_EFI Subject: Re: Ignition Book Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu wrote: > > Even more > amazing was the followup shock-factor demonstration, where they fed the > same engine's inlet from the tailpipe of a running SAAB 96? 2-cycle > motor. The output was still within CA-legal emmissions limits. Since there still seems to be confusion about which SAAB this really was: I saw a video of the above demo at the SAAB stand at a motor show, the two-stroke SAAB being used was a SAAB 92. Regards, Jorgen Othman jorgeno@rd.scitec.com.au From owner-diy_efi-archive Thu Oct 5 09:35:06 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id JAA21284; Thu, 5 Oct 1995 09:32:06 GMT Return-Path: Received: from mail.telstra.com.au by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id FAA21270; Thu, 5 Oct 1995 05:32:00 -0400 Received: from mail_gw.fwall.telecom.com.au(192.148.147.10) by mail via smap (V1.3) id sma005891; Thu Oct 5 18:06:33 1995 Received: from cdn_mail.dn.itg.telecom.com.au(144.135.109.134) by mail_gw.telecom.com.au via smap (V1.3) id sma027063; Thu Oct 5 18:06:16 1995 Received: from shiva.trl.OZ.AU (shiva.trl.OZ.AU [137.147.20.34]) by cdn_mail.dn.itg.telecom.com.au (8.6.11/8.6.9) with ESMTP id SAA15257 for ; Thu, 5 Oct 1995 18:06:16 +1000 Received: (from pugsley@localhost) by shiva.trl.OZ.AU (8.6.10/8.6.12) id SAA28881 for DIY_EFI@coulomb.eng.ohio-state.edu; Thu, 5 Oct 1995 18:06:14 +1000 From: Craig Pugsley Message-Id: <199510050806.SAA28881@shiva.trl.OZ.AU> Subject: O2 sensors A/F vs voltage.. To: DIY_EFI Date: Thu, 5 Oct 1995 18:06:12 +1000 (EST) X-Mailer: ELM [version 2.4 PL20] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Length: 827 Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi there, Has anyone got some data on how the voltage of an O2 sensor maps to the A/F ratio (presuming it's fully warmed up).. I've read about 5 million pages on O2 sensors but can't even dig up a rough approximation of what the data points on a classic O2 curve mean, or are they simply not accurate enough to be read in this fashion? Failing that, when I get a chance I'll convince the local dyno place to let me measure the O2 sensor voltages VS their hi tech professional emissions gear.. Cheers, Craig. PS I found a good cheap PC paralell port <--> real world interface kit.. ~$35 US, 10 analog inputs 2 analog outputs 10 digital outputs (no digital inputs), all driven by supplied-with-dos-5 Qbasic. I'm using it to simulate some inputs for my analog ECU hack project. I can supply details if there's any interest. From owner-diy_efi-archive Thu Oct 5 12:01:46 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id LAA21470; Thu, 5 Oct 1995 11:55:52 GMT Return-Path: Received: from dekalb.vf.mmc.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id HAA21456; Thu, 5 Oct 1995 07:55:42 -0400 From: ducharme@eiss1.psf.ge.com Received: from franklin.vf.mmc.com (franklin.VF.GE.COM [166.17.5.51]) by dekalb.vf.mmc.com (8.6.12/8.6.12) with ESMTP id HAA25390; Thu, 5 Oct 1995 07:55:03 -0400 Received: from orrqms2.psf.ge.com (orrqms2.PSF.GE.COM [166.16.144.2]) by franklin.vf.mmc.com (8.6.12/8.6.10) with SMTP id HAA20124; Thu, 5 Oct 1995 07:55:04 -0400 Received: from eiss1.psf.ge.com (orrqms4.PSF.GE.COM) by orrqms2.psf.ge.com (4.1/MMC Sun server N-3.4) id AA23936; Thu, 5 Oct 95 07:58:42 EDT Received: by eiss1.psf.ge.com (4.1/GEA Sun client 1.19) id AA01290; Thu, 5 Oct 95 07:58:25 EDT Date: Thu, 5 Oct 95 07:58:25 EDT Message-Id: <9510051158.AA01290@eiss1.psf.ge.com> To: DIY_EFI Subject: Re: Reply to Cilff Ducharme [not private] Cc: jac@wave.sheridan.wy.us Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu John, Your use of my email address did work! I thought I might be an odd sock on the DIY_EFI post, but apparently not as there are others out there as well. Currently, I'm pursuing the aircraft EFI as a thesis project, but in the future, I'm considering the possibility of building either a homebuilt or ultralight. The system that I'll be prototyping will probably incorporate some redundancy, either by dual parallel controllers or a master/slave arrangement with failover. Whether or not I will ever get to a mature configuration is anybody's guess. As far as skills are concerned, I am an accomplished machinist, have operated, designed and built test facilities for engines and transmissions, have several years experience as a software developer, and 0 cockpit hours, although I've flown RC for a dozen years and have designed and built scores of models. As far as test facilities are concerned, my garage is it for now, although if I were to get into it further, a dyno stand would be the next step ( just takes time and $$, I have the skills to put it together). The next logical prototype would be a VW or Rotax 912, although the Subaru is gaining popularity, and some guy even converted a Yamaha Virago motocycle engine (Kitplanes 10/95). Cliff Ducharme From owner-diy_efi-archive Thu Oct 5 13:19:06 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id NAA21586; Thu, 5 Oct 1995 13:12:06 GMT Return-Path: Received: from gatekeeper.nsc.com by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id JAA21572; Thu, 5 Oct 1995 09:12:03 -0400 Received: from nsc.nsc.com by gatekeeper.nsc.com (5.65/fma-120691) with SMTP; id AA05395 for diy_efi@coulomb.eng.ohio-state.edu; Thu, 5 Oct 95 06:11:43 -0700 Received: from gpo.nsc.com by nsc.nsc.com (5.65/1.34) with SMTP id AA12536 for diy_efi@coulomb.eng.ohio-state.edu; Thu, 5 Oct 95 06:11:37 -0700 Received: from SPF.DECnet MAIL11D_V3 by gpo.nsc.com (5.57/Ultrix3.0-C) id AA25282; Thu, 5 Oct 95 06:05:15 -0700 Date: Thu, 5 Oct 95 06:05:14 -0700 Message-Id: <9510051305.AA25282@gpo.nsc.com> From: dmorrill%spf.dnet@gpo.nsc.com (DAVE MORRILL HPL DESIGN ENG 207-775-8574) To: "diy_efi@coulomb.eng.ohio-state.edu"%GPO.dnet@gpo.nsc.com Cc: DMORRILL@gpo.nsc.com Subject: Inexpensive I/O board Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Craig, I am interested in the PC parallel port i/o board that you mentioned. Where did you get it? Thanks, Dave. From: GPO::"owner-diy_efi-outgoing@coulomb.eng.ohio-state.edu" 5-OCT-1995 06:14:01.68 To: DIY_EFI@coulomb.eng.ohio-state.edu CC: Subj: O2 sensors A/F vs voltage.. Hi there, Has anyone got some data on how the voltage of an O2 sensor maps to the A/F ratio (presuming it's fully warmed up).. I've read about 5 million pages on O2 sensors but can't even dig up a rough approximation of what the data points on a classic O2 curve mean, or are they simply not accurate enough to be read in this fashion? Failing that, when I get a chance I'll convince the local dyno place to let me measure the O2 sensor voltages VS their hi tech professional emissions gear.. Cheers, Craig. PS I found a good cheap PC paralell port <--> real world interface kit.. ~$35 US, 10 analog inputs 2 analog outputs 10 digital outputs (no digital inputs), all driven by supplied-with-dos-5 Qbasic. I'm using it to simulate some inputs for my analog ECU hack project. I can supply details if there's any interest. From owner-diy_efi-archive Thu Oct 5 14:14:07 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id OAA21789; Thu, 5 Oct 1995 14:01:46 GMT Return-Path: Received: from dns1.unipissing.ca by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id KAA21775; Thu, 5 Oct 1995 10:01:42 -0400 Received: from smtpgate.unipissing.ca by dns1.unipissing.ca (AIX 3.2/UCB 5.64/4.03) id AA18223; Thu, 5 Oct 1995 09:56:57 -0400 Received: by smtpgate.unipissing.ca with Microsoft Mail id <30740F52@smtpgate.unipissing.ca>; Thu, 05 Oct 95 10:01:06 PDT From: Andre Roy To: DIY_EFI Subject: Re: Fuel injection questions - - Date: Thu, 05 Oct 95 10:00:00 PDT Message-Id: <30740F52@smtpgate.unipissing.ca> Encoding: 29 TEXT X-Mailer: Microsoft Mail V3.0 Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu > From: Brad_Miller@So.Xerox.com > Date: Wed, 4 Oct 1995 10:42:57 PDT > To: DIY_EFI@coulomb.eng.ohio-state.edu > Subject: Fuel injection questions - - > > Does anyone know for sure how Chryslers are on injection setup? Do > they do a batch fire? Is the setup called MPI or SPFI? Multipoint > vs. Sequential Point? Could someone explain differences? I think I've > got the definitions nailed down - but I want to be sure . . . . > MPI ( Multi Port Injection) has one (or more) injector for each cylinder The injectors fire in unison. The disadvantage is that there can be a bit of fuel puddling (like on a carb) because air only flows while the intake valv is open. The rest of the (admittadly short) time, the air in the intake runner is not moving. SPFI Sequential Point Fiel Injection (there are other acronyms, no doubt) Same as above, but the injector for a particular cylinder only fires when the intake valve is open (or just before) the rest of the time there is just stationary air with no fuel in the intake runner. Advantage, no fuel puddling. Disadvantage, slightly more complicated control strategies. I'm pretty sure thats what the differences are. Andre Roy North Bay, Ontario From owner-diy_efi-archive Thu Oct 5 15:39:01 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id PAA22175; Thu, 5 Oct 1995 15:25:33 GMT Return-Path: Received: from spsgate.sps.mot.com by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id LAA22160; Thu, 5 Oct 1995 11:25:27 -0400 Received: from mogate (mogate.sps.mot.com) by spsgate.sps.mot.com (4.1/SMI-4.1/Email 2.1 10/25/93) id AA03541 for DIY_EFI@coulomb.eng.ohio-state.edu; Thu, 5 Oct 95 08:25:06 MST Received: from txbc.sps.mot.com ([192.88.171.200]) by mogate (4.1/SMI-4.1/Email-2.0) id AA18492; Thu, 5 Oct 95 08:25:02 MST Received: from roadster.sps.mot.com by txbc.sps.mot.com with SMTP (1.38.193.4/16.2) id AA17820; Thu, 5 Oct 95 10:25:00 -0500 Received: by roadster.autotest (4.1/SMI-4.1) id AA25020; Thu, 5 Oct 95 10:21:09 CDT Date: Thu, 5 Oct 95 10:21:09 CDT From: walter@roadster.sps.mot.com (thomas walter x5955) Message-Id: <9510051521.AA25020@roadster.autotest> To: DIY_EFI Subject: Re: Fuel injection questions - - Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu > From: Andre Roy > MPI ( Multi Port Injection) has one (or more) injector for each cylinder > The injectors fire in unison. The disadvantage is that there can be > a bit of fuel puddling (like on a carb) because air only flows while > the intake valv is open. The rest of the (admittadly short) time, the > air in the intake runner is not moving. > > SPFI Sequential Point Fiel Injection (there are other acronyms, no doubt) > Same as above, but the injector for a particular cylinder only fires > when the intake valve is open (or just before) the rest of the time > there is just stationary air with no fuel in the intake runner. > Advantage, no fuel puddling. Disadvantage, slightly more complicated > control strategies. > Andre, Minor item. Ideally SPFI will turn off the fuel flow BEFORE the valve closes. Keep in mind the intake valve is open, maybe 35%, of the time where as the fuel injector will have a maximum duty cycle of 80-90% at WOT. i.e. it will be INJECTING fuel longer than the valve can be open. [Ok, Ok, doesn't apply to a RX-7! ;-)]. Still ideal to turn off fuel flow before the intake valve closes, and then to turn it back on (assuming 90% duty cycle) for the fuel to hit the back of the valve allowing better vaporization. So if you are after maximum part thottle economy, and low emissions, SPFI is best. For maximum power, either approach will do! REVERSIONS: While we all realize the the closing of the intake valve will cause a "back pulse" of air through the intake track, I was not really aware of how critical it could be. An engine builder could not get enough fuel into an injected engine... at WOT the engine was running LEAN, despite "having more than enough fuel to flood it". Hmm, problem was a unique reversion pattern. Rather than the usual area around the intake walls, there was ALSO an effected area in the middle. Dead center of the intake area of the FUEL injector jet!!! The reversion pulse of this radically cammed motor was enough to blow fuel back out the short intake track! [Haltech throttle bodies... look like Weber DCOE's with an injector port]. Result was interesting . So when done with all the calculations, and theories, it is great fun to get it all blown back in your face! ;-) Andre has a good point on fuel puddling. For those of you adapting "thottle bodies" to your home brew system. While the phsical hardware may be easier to bolt up, the software will have to correct for "pooling" the fuel in the manifold under some conditions... a little more difficult task for home brewed systems. Hmm, seems like the port injection would be a simplier SOFTWARE task to start with (even with the system allowing for SPFI control of the injectors, just do rev 1.0 software for batch mode... then tweak it). Odd thought... with a SENSITIVE air pressure switch in the intake manifold, I wonder if it would be possible to detect the closing of the intake valve... i.e. for sequential timing WITHOUT using a camshaft sensor. Any comments? Tom "How could the motor be too lean?" Walter Austin, TX. From owner-diy_efi-archive Thu Oct 5 19:38:24 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id TAA29179; Thu, 5 Oct 1995 19:32:39 GMT Return-Path: Received: from ns1.eds.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id PAA29165; Thu, 5 Oct 1995 15:32:34 -0400 Received: by ns1.eds.com (hello) id PAA21310; Thu, 5 Oct 1995 15:31:47 -0400 Received: by nnsa.eds.com (hello) id PAA04763; Thu, 5 Oct 1995 15:31:46 -0400 Received: from koptsy22.delcoelect.com by kocrsv01.delcoelect.com with SMTP id AA15208 (5.65c/IDA-1.5/CORE for ); Thu, 5 Oct 1995 14:31:45 -0500 Received: by koptsy22.delcoelect.com (5.x/SMI-SVR4) id AA27603; Thu, 5 Oct 1995 14:31:45 -0500 Date: Thu, 5 Oct 1995 14:31:45 -0500 From: c1icst1@kocrsv01.delcoelect.com (Charles S. Tosch) Message-Id: <9510051931.AA27603@koptsy22.delcoelect.com> To: DIY_EFI Subject: Re: Fuel injection questions - - In-Reply-To: Mail from 'walter@roadster.sps.mot.com (thomas walter x5955)' dated: Thu, 5 Oct 95 10:21:09 CDT Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu > Message 12: > From owner-diy_efi-outgoing@coulomb.eng.ohio-state.edu Thu Oct 5 11:14:10 1995 > From: walter@roadster.sps.mot.com (thomas walter x5955) > To: DIY_EFI@coulomb.eng.ohio-state.edu > Subject: Re: Fuel injection questions - - > > > From: Andre Roy > > > MPI ( Multi Port Injection) has one (or more) injector for each cylinder > > The injectors fire in unison. The disadvantage is that there can be > > a bit of fuel puddling (like on a carb) because air only flows while > > the intake valv is open. The rest of the (admittadly short) time, the > > air in the intake runner is not moving. > > > > SPFI Sequential Point Fiel Injection (there are other acronyms, no doubt) > > Same as above, but the injector for a particular cylinder only fires > > when the intake valve is open (or just before) the rest of the time > > there is just stationary air with no fuel in the intake runner. > > Advantage, no fuel puddling. Disadvantage, slightly more complicated > > control strategies. > > > > Andre, > > Minor item. Ideally SPFI will turn off the fuel flow BEFORE the valve > closes. Keep in mind the intake valve is open, maybe 35%, of the time > where as the fuel injector will have a maximum duty cycle of 80-90% > at WOT. i.e. it will be INJECTING fuel longer than the valve can be > open. [Ok, Ok, doesn't apply to a RX-7! ;-)]. > > Still ideal to turn off fuel flow before the intake valve closes, and > then to turn it back on (assuming 90% duty cycle) for the fuel to hit > the back of the valve allowing better vaporization. > > So if you are after maximum part thottle economy, and low emissions, > SPFI is best. For maximum power, either approach will do! > > REVERSIONS: While we all realize the the closing of the intake valve > will cause a "back pulse" of air through the intake track, I was not > really aware of how critical it could be. An engine builder could not > get enough fuel into an injected engine... at WOT the engine was running > LEAN, despite "having more than enough fuel to flood it". Hmm, problem > was a unique reversion pattern. Rather than the usual area around the > intake walls, there was ALSO an effected area in the middle. Dead center > of the intake area of the FUEL injector jet!!! The reversion pulse of this > radically cammed motor was enough to blow fuel back out the short intake > track! [Haltech throttle bodies... look like Weber DCOE's with an injector > port]. Result was interesting . So when done with all the calculations, > and theories, it is great fun to get it all blown back in your face! ;-) > > Andre has a good point on fuel puddling. > For those of you adapting "thottle bodies" to your home brew > system. While the phsical hardware may be easier to bolt up, the > software will have to correct for "pooling" the fuel in the manifold > under some conditions... a little more difficult task for home brewed > systems. Hmm, seems like the port injection would be a simplier SOFTWARE > task to start with (even with the system allowing for SPFI control of > the injectors, just do rev 1.0 software for batch mode... then tweak it). > > Odd thought... with a SENSITIVE air pressure switch in the intake > manifold, I wonder if it would be possible to detect the closing of > the intake valve... i.e. for sequential timing WITHOUT using a camshaft > sensor. Any comments? > > Tom "How could the motor be too lean?" Walter > Austin, TX. > The only problem is that it is difficult to distinguish the pressure pulses from the valve you are trying to synchronize with. A standard MAP sensor can detect the pressure pulses in the manifold. Typically they are filtered by a calibrated orifice in the sensor or software. A length of vacuum hose before the sensor also has the same effect. FWIW -- Chuck Tosch c1icst1@kocvrs01.delcoelect.com Delco Electronics (317) 451-0869 Kokomo, IN 46904 8-322-0869 From owner-diy_efi-archive Thu Oct 5 19:52:16 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id TAA29357; Thu, 5 Oct 1995 19:48:49 GMT Return-Path: Received: from ibmPCUG.CO.UK by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id PAA29343; Thu, 5 Oct 1995 15:48:42 -0400 Received: from kate.ibmpcug.co.uk by alice.ibmPCUG.CO.UK id aa13925; 5 Oct 95 20:48 BST Received: from turbo by kate.ibmpcug.co.uk id aa01314; 5 Oct 95 20:47 BST Received: by win-uk.net!turbo; Thu, 05 Oct 1995 20:27:55 X-Mailer: WinNET Mail, v2.30 Message-ID: <51@turbo.win-uk.net> To: DIY_EFI, DIY_EFI Date: Thu, 05 Oct 1995 20:27:54 Subject: Re: Bosch Platinum Plugs From: "Brian Warburton, c/o Turbo Systems Ltd" Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, My name is Brian Warburton and I'm a new member to your conference. My automotive background consists of 9 years consulting to Ford Motor Company, Europe Automotive Operations (EAO) and North America Automotive Operations (NAAO), on engine management systems with particular specialisation on the control software for the EEC-iv ECU. I designed and wrote a large amount of the software than runs most of the current EAO cars and some of the NAAO cars and trucks. After nine years I gave it all up end of last year and set up a company making engine management systems for race and fast road-car applications. We design both the hardware and the software in-house. I made more money at Ford, but what the hell, I have more fun now ! OK, just to throw in my 10c worth on platinum tipped spark-plugs, I used to run a 3.0l turbo-charged TVR that was a pig to start when cold, a pig to drive during warm up unless you got into the boost range real quick (which wasn't a good idea on a cold engine !) and generally unpleasant until it was warm and really cooking. The problem was caused by plug fouling when cold due to the plug temperature range. In order to survive under boost you needed quite cold-range plugs, but these fouled very easily when the engine was cold. On the advice of an ex-Lotus F1 mechanic, I fitted a set of NGK platinum tipped plugs (BP8ES ?) which totally transformed the car at a cost in 1979 of $7/plug. No more plug fouling, and so wonderful cold-start and drive. The advantages (he said) was that the thin platinum tip reached and maintained operating temperature a lot quicker than normal plugs and they were much less resistant to fouling because of that. Only experience I've ever had with the Bosch versions was from a collegue who tried them on a motorcycle a few years back and kept having the platinum tips failling off. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Brian Warburton, "Still searching for the perfect curve....." email: bwarb@turbo.win-uk.net Advanced Automotive Electronics Ltd, Van-Nuys, Scotlands Drive, Farnham Common, England. SL2-3ES ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ From owner-diy_efi-archive Thu Oct 5 19:52:19 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id TAA29373; Thu, 5 Oct 1995 19:48:53 GMT Return-Path: Received: from ibmPCUG.CO.UK by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id PAA29359; Thu, 5 Oct 1995 15:48:50 -0400 Received: from kate.ibmpcug.co.uk by alice.ibmPCUG.CO.UK id aa13926; 5 Oct 95 20:48 BST Received: from turbo by kate.ibmpcug.co.uk id aa01303; 5 Oct 95 20:47 BST Received: by win-uk.net!turbo; Thu, 05 Oct 1995 20:27:55 X-Mailer: WinNET Mail, v2.30 Message-ID: <51@turbo.win-uk.net> To: DIY_EFI, DIY_EFI Date: Thu, 05 Oct 1995 20:27:54 Subject: Re: Bosch Platinum Plugs From: "Brian Warburton, c/o Turbo Systems Ltd" Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, My name is Brian Warburton and I'm a new member to your conference. My automotive background consists of 9 years consulting to Ford Motor Company, Europe Automotive Operations (EAO) and North America Automotive Operations (NAAO), on engine management systems with particular specialisation on the control software for the EEC-iv ECU. I designed and wrote a large amount of the software than runs most of the current EAO cars and some of the NAAO cars and trucks. After nine years I gave it all up end of last year and set up a company making engine management systems for race and fast road-car applications. We design both the hardware and the software in-house. I made more money at Ford, but what the hell, I have more fun now ! OK, just to throw in my 10c worth on platinum tipped spark-plugs, I used to run a 3.0l turbo-charged TVR that was a pig to start when cold, a pig to drive during warm up unless you got into the boost range real quick (which wasn't a good idea on a cold engine !) and generally unpleasant until it was warm and really cooking. The problem was caused by plug fouling when cold due to the plug temperature range. In order to survive under boost you needed quite cold-range plugs, but these fouled very easily when the engine was cold. On the advice of an ex-Lotus F1 mechanic, I fitted a set of NGK platinum tipped plugs (BP8ES ?) which totally transformed the car at a cost in 1979 of $7/plug. No more plug fouling, and so wonderful cold-start and drive. The advantages (he said) was that the thin platinum tip reached and maintained operating temperature a lot quicker than normal plugs and they were much less resistant to fouling because of that. Only experience I've ever had with the Bosch versions was from a collegue who tried them on a motorcycle a few years back and kept having the platinum tips failling off. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Brian Warburton, "Still searching for the perfect curve....." email: bwarb@turbo.win-uk.net Advanced Automotive Electronics Ltd, Van-Nuys, Scotlands Drive, Farnham Common, England. SL2-3ES ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ From owner-diy_efi-archive Thu Oct 5 20:28:35 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id UAA29541; Thu, 5 Oct 1995 20:22:56 GMT Return-Path: Received: from internet-mail.ford.com by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id QAA29527; Thu, 5 Oct 1995 16:22:51 -0400 From: atsakiri@ford.com Received: by internet-mail.ford.com id AA21266 (InterLock SMTP Gateway 3.0 for DIY_EFI@coulomb.eng.ohio-state.edu); Thu, 5 Oct 1995 16:22:29 -0400 Message-Id: <199510052022.AA21266@internet-mail.ford.com> Received: by internet-mail.ford.com (Protected-side Proxy Mail Agent-2); Thu, 5 Oct 1995 16:22:29 -0400 Received: by internet-mail.ford.com (Protected-side Proxy Mail Agent-1); Thu, 5 Oct 1995 16:22:29 -0400 To: DIY_EFI Cc: atsakiri@ford.com Subject: Re: Fuel injection questions - - In-Reply-To: Your message of "Thu, 05 Oct 95 14:31:45 CDT." <9510051931.AA27603@koptsy22.delcoelect.com> Date: Thu, 05 Oct 95 16:22:26 -0400 X-Mts: smtp Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu > > Odd thought... with a SENSITIVE air pressure switch in the intake > > manifold, I wonder if it would be possible to detect the closing of > > the intake valve... i.e. for sequential timing WITHOUT using a camshaft > > sensor. Any comments? > > What advantage would the MAP-based data have over the camshaft sensor-based data? I'd prefer the most direct measurement of the quantity of interest (valve position in this case). An air pressure measurement may include many other effects. If you are considering the deletion of the camshaft sensor in favor of an existing MAP sensor, be aware that the MAP sensor has already been replaced with a MAF sensor on many engines. Also, even if there is an existing MAP sensor, the signal processing associated with it may not be up to the job. I think a camshaft/crankshaft sensor is simpler and more direct. --- Anthony Tsakiris Powertrain Electronics Ford Motor Company The opinions expressed are my own and not necessarily those of my employer. From owner-diy_efi-archive Thu Oct 5 21:36:23 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id VAA29723; Thu, 5 Oct 1995 21:31:44 GMT Return-Path: Received: from pine.liii.com by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id RAA29708; Thu, 5 Oct 1995 17:31:40 -0400 Received: from rowan.liii.com by pine.liii.com with SMTP (5.67b/15Feb94-Long Island Information) id AA23527; Thu, 5 Oct 1995 17:32:07 -0400 Received: by rowan.liii.com (5.67b/15Feb94-Long Island Information) id AA15845; Thu, 5 Oct 1995 17:31:36 -0400 Date: Thu, 5 Oct 1995 17:31:35 -0400 (EDT) From: Bob Valentine To: DIY_EFI Subject: Re: O2 sensors A/F vs voltage.. In-Reply-To: <199510050806.SAA28881@shiva.trl.OZ.AU> Message-Id: Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu > PS I found a good cheap PC paralell port <--> real world interface kit.. > ~$35 US, 10 analog inputs 2 analog outputs 10 digital outputs (no > digital inputs), all driven by supplied-with-dos-5 Qbasic. > > I'm using it to simulate some inputs for my analog ECU hack project. I'd be interested in details. --> Bob Valentine <-- --> ravalent@liii.com <-- "Hard Acceleration Saves Costly Aggravation" From owner-diy_efi-archive Thu Oct 5 23:28:26 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA29907; Thu, 5 Oct 1995 23:24:23 GMT Return-Path: Received: from spsgate.sps.mot.com by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id TAA29893; Thu, 5 Oct 1995 19:24:20 -0400 Received: from mogate (mogate.sps.mot.com) by spsgate.sps.mot.com (4.1/SMI-4.1/Email 2.1 10/25/93) id AA15720 for DIY_EFI@coulomb.eng.ohio-state.edu; Thu, 5 Oct 95 16:23:51 MST Received: from txbc.sps.mot.com ([192.88.171.200]) by mogate (4.1/SMI-4.1/Email-2.0) id AA03041; Thu, 5 Oct 95 16:23:50 MST Received: from roadster.sps.mot.com by txbc.sps.mot.com with SMTP (1.38.193.4/16.2) id AA20988; Thu, 5 Oct 95 18:23:49 -0500 Received: by roadster.autotest (4.1/SMI-4.1) id AA25520; Thu, 5 Oct 95 18:19:57 CDT Date: Thu, 5 Oct 95 18:19:57 CDT From: walter@roadster.sps.mot.com (thomas walter x5955) Message-Id: <9510052319.AA25520@roadster.autotest> To: DIY_EFI Subject: Re: Fuel injection questions - - Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Didn't realize my comment about *thinking* of pressure sensors to determine the closing the number one valve could generate so much interest. For a HOME BREW system, I would use a sensor to check a cam lobe. For a production system, once TDC is determined the rest of the system could keep track. Just the idea that, perhaps, a MAP sensor and a little software (DSP) could be used in place of an electrical-mechanical type sensor. Tom P.S. For those Home Brew solutions... do not over look a fuel pump lobe on the camshaft. Nice part about using that, is there is a nice little cover plate that is easier to modify than a valve cover. ;-) From owner-diy_efi-archive Thu Oct 5 23:53:49 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA29980; Thu, 5 Oct 1995 23:48:37 GMT Return-Path: Received: from curly.cc.swin.edu.au by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id TAA29966; Thu, 5 Oct 1995 19:48:30 -0400 Received: from mechman.mm.swin.edu.au by curly.cc.swin.edu.au (5.65c/1.34) id AA07406; Fri, 6 Oct 1995 09:47:58 +1000 Received: from MECHMAN/SpoolDir by mechman.mm.swin.edu.au (Mercury 1.21); 6 Oct 95 09:48:01 +1000 Received: from SpoolDir by MECHMAN (Mercury 1.21); 6 Oct 95 09:47:38 +1000 From: "Andrew Dennison" Organization: Swinburne University To: DIY_EFI Date: Fri, 6 Oct 1995 09:47:34 EST+10 Subject: Re: Fuel injection questions - - Priority: normal X-Mailer: Pegasus Mail for Windows (v2.01) Message-Id: <2E9D53862E3@mechman.mm.swin.edu.au> Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu > > > Odd thought... with a SENSITIVE air pressure switch in the intake > > > manifold, I wonder if it would be possible to detect the closing of > > > the intake valve... i.e. for sequential timing WITHOUT using a camshaft > > > sensor. Any comments? > > > > > What advantage would the MAP-based data have over the camshaft sensor-based > data? I'd prefer the most direct measurement of the quantity of interest > (valve position in this case). I think you would require the crank sensor for accurate timing information, however the MAP pulses could be suitable for determining the optimum injector closing time. Sequential injection is only really useful for low loads to reduce fuel consumption and slightly increase torque - it isn't really necessary if you only care about power! Andrew ------------------------------------ Andrew Dennison - Research Associate CIM Centre - Swinburne University PO Box 218 Hawthorn Victoria 3122 Australia Phone: +61 3 9214 8296 Fax: +61 3 9819 4949 From owner-diy_efi-archive Thu Oct 5 23:53:58 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA29999; Thu, 5 Oct 1995 23:53:05 GMT Return-Path: Received: from mail.telstra.com.au by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id TAA29985; Thu, 5 Oct 1995 19:53:01 -0400 Received: from mail_gw.fwall.telecom.com.au(192.148.147.10) by mail via smap (V1.3) id sma025380; Fri Oct 6 09:51:14 1995 Received: from cdn_mail.dn.itg.telecom.com.au(144.135.109.134) by mail_gw.telecom.com.au via smap (V1.3) id sma024694; Fri Oct 6 09:49:55 1995 Received: from shiva.trl.OZ.AU (shiva.trl.OZ.AU [137.147.20.34]) by cdn_mail.dn.itg.telecom.com.au (8.6.11/8.6.9) with ESMTP id JAA01721 for ; Fri, 6 Oct 1995 09:49:55 +1000 Received: (from pugsley@localhost) by shiva.trl.OZ.AU (8.6.10/8.6.12) id JAA18276 for DIY_EFI@coulomb.eng.ohio-state.edu; Fri, 6 Oct 1995 09:49:52 +1000 From: Craig Pugsley Message-Id: <199510052349.JAA18276@shiva.trl.OZ.AU> Subject: Re: Inexpensive I/O board To: DIY_EFI Date: Fri, 6 Oct 1995 09:49:49 +1000 (EST) In-Reply-To: <9510051305.AA25282@gpo.nsc.com> from "DAVE MORRILL HPL DESIGN ENG 207-775-8574" at Oct 5, 95 06:05:14 am X-Mailer: ELM [version 2.4 PL20] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Length: 1781 Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu > I am interested in the PC parallel port i/o board that you mentioned. > Where did you get it? OK, due to the number of personal replys I have had, here's what I sent to someone ther other day. In my opinion it would not be fast enough to be used as an EFI *computer* without extra timers etc to do the 'dirty work', however it would probably be ok to do readings and look up maps etc to drive the timers. Also note that due to it's comparitively low price it's not 'instrumentation grade', but probably still a useful tool. For those with access to it, the project was described in 'Electronics Australia' magazine, June 1995 P54. Cheers, Craig. ------------------------------------------- I'm building a parallell port interface kit at the moment that has 10 A-D inputs (8 bit), 2 d-a outputs (8 bit) and 8 digital outputs. All this plugs into the parallell port and is driven by Quick Basic (as supplied with DOS). It's basically a cheap easy interface (but no digital inputs - speed would also be not great) I am planning to use this to simulate some inputs to a fuel injection computer. Availability/Cost: This kit is available from DICK SMITH ELECTRONICS in AUSTRALIA. The cost is $42.50aus + shipping of ~$10, so basically under $40 US delivered. They accept credit cards and have a form you can fill out with your order. This is a reputable company so I wouldn't have any reservations about ordering from them. Phone #s: +612 937 336 (ie from the US 011 612 937 336) Fax +612 805 1986 Postal: Dick Smith Electronics, P.O. Box 321, North Ryde, NSW 2113 Australia. The kit is catalog number K2805 and called the 'Parallel port interface' Cheers, Craig. pugsley@trl.oz.au PS if you need an order form I can scan it in and Email it to you as a JPG or other format From owner-diy_efi-archive Fri Oct 6 00:56:41 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id AAA00344; Fri, 6 Oct 1995 00:54:29 GMT Return-Path: Received: from ariel.gi.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id UAA00330; Thu, 5 Oct 1995 20:54:23 -0400 Received: from gismtpgate.gi.com (po1.gi.com) by VCA.GI.COM (PMDF V5.0-5 #7516) id <01HW38ZOQDYOK5GGH0@VCA.GI.COM> for DIY_EFI@coulomb.eng.ohio-state.edu; Thu, 05 Oct 1995 17:54:03 -0700 (PDT) Received: by gismtpgate.gi.com with Microsoft Mail id <30747E15@gismtpgate.gi.com>; Thu, 05 Oct 1995 17:53:41 -0700 (PDT) Date: Thu, 05 Oct 1995 17:54:00 -0700 (PDT) From: "Zublin, Bryan (SD-MS)" Subject: Re: Fuel injection questions - - To: "diy_efi (postings)" Message-id: <30747E15@gismtpgate.gi.com> X-Mailer: Microsoft Mail V3.0 Content-transfer-encoding: 7BIT Encoding: 10 TEXT Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu >P.S. For those Home Brew solutions... do not over look a fuel pump >lobe on the camshaft. Nice part about using that, is there is a nice >little cover plate that is easier to modify than a valve cover. ;-) This is a great idea! This is exactly the case for Toyota 20R/22R series engines. The EFI versions (22RE) just have a cover where the mechanical fuel pump used to be. So it is available for mounting a sensor. Bryan Zublin bzublin@gi.com From owner-diy_efi-archive Fri Oct 6 03:42:03 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA00665; Fri, 6 Oct 1995 03:37:30 GMT Return-Path: Received: from mistletoe.holli.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id XAA00651; Thu, 5 Oct 1995 23:37:26 -0400 Received: from walnut.holli.com (walnut.holli.com [198.70.38.5]) by mistletoe.holli.com (8.6.11/8.6.9) with SMTP id WAA25986 for ; Thu, 5 Oct 1995 22:32:05 -0500 Received: from holli-ko-076.holli.com by walnut.holli.com with smtp (Smail3.1.28.1 #15) id m0t13Yx-0009jdC; Thu, 5 Oct 95 22:35 EST Message-Id: Date: Thu, 5 Oct 95 22:35 EST X-Sender: teldridg@holli.com Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: DIY_EFI From: teldridg@holli.com (Tim Eldridge) Subject: TBI Questions X-Mailer: Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hello, I'm new to the DIY_EFI mailing list. I am currently in my senior year at Purdue working on a BSEET degree. My senior design project is to build a fuel injection system for my '63 Corvair. I thought a TBI system would be the easiest to install and operate. I plan on using General Motors system possibly from the mid-eighties since I work at Delco Electronics in Kokomo, IN. My questions are: Where can I find specifications for a GM system? Particularly for the injector, MAF sensor, O2 sensor and engine temp sensor. Also will a TBI unit from a 2.5 liter motor work? My Corvair is about 2.8 liter but is a six cylinder. Will using a MPU to drive the fuel injector using input from the MAF sensor be enough adequately control the air/fuel ratio or should I plan on developing and using a fuel map or other control system? Any input will be most appreciated maybe someday I will have answers instead of questions. If any fellow DE folks have contacts in the Kokomo area that could help, I can be reached at MS Fab B X8105 Many thanks in advance to any who take the time to respond. Sorry if these questions have been answered before. "Ralph was wrong" Tim Eldridge teldridg@holli.com From owner-diy_efi-archive Fri Oct 6 12:48:57 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id MAA01281; Fri, 6 Oct 1995 12:43:18 GMT Return-Path: Received: from spot.Colorado.EDU by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id IAA01267; Fri, 6 Oct 1995 08:43:15 -0400 Received: (from ciciora@localhost) by spot.Colorado.EDU (8.6.12/8.6.12/CNS-3.6) id GAA25394; Fri, 6 Oct 1995 06:42:58 -0600 Date: Fri, 6 Oct 1995 06:42:57 -0600 (MDT) From: CICIORA STEVEN JOSEP To: DIY_EFI cc: DIY EFI Mailing List Subject: Re: Copy of: Delco ECM uP type In-Reply-To: <950919193659_100341.377_EHQ70-1@CompuServe.COM> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu About the SIM68 simulator... where did you get it? Is it share-ware? I've always just assumed that GM bought CPUs in such quanitites that they had the code in masked rom, and the external eprom just had look up tables. Your posts have inspired me to get a copy of the eprom out of my '89 Beretta (well, also and the fact that my brother-in-law's '89 corsaca is coming up with error codes saying 'bad prom'). I wrote down the chip numbers in my ECU, but don't have them with me. I wonder if they match yours... Any way, not too bad! The 6811 is my favorate processor, and mabe I'll learn a trick or two by looking at the code. Thanks for your time... -Steven Ciciora From owner-diy_efi-archive Fri Oct 6 12:48:58 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id MAA01307; Fri, 6 Oct 1995 12:46:11 GMT Return-Path: Received: from spot.Colorado.EDU by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id IAA01293; Fri, 6 Oct 1995 08:46:09 -0400 Received: (from ciciora@localhost) by spot.Colorado.EDU (8.6.12/8.6.12/CNS-3.6) id GAA25888; Fri, 6 Oct 1995 06:45:51 -0600 Date: Fri, 6 Oct 1995 06:45:51 -0600 (MDT) From: CICIORA STEVEN JOSEP To: DIY_EFI cc: DIY_EFI Subject: Re: Fuel injection questions - - In-Reply-To: <9510052319.AA25520@roadster.autotest> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu > > P.S. For those Home Brew solutions... do not over look a fuel pump > lobe on the camshaft. Nice part about using that, is there is a nice > little cover plate that is easier to modify than a valve cover. ;-) > Damn good idea! Espicially since I have an electric fuel pump, and don't use that port! Mabe I'll just modify my old mechinical fuel pump to have the sensor in there. -Steven Ciciora From owner-diy_efi-archive Fri Oct 6 13:12:22 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id NAA01363; Fri, 6 Oct 1995 13:08:34 GMT Return-Path: Received: from opus.mtu.edu by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id JAA01349; Fri, 6 Oct 1995 09:08:31 -0400 Received: from mtu.edu (root@mtu.edu [141.219.70.1]) by opus.mtu.edu (8.6.10/8.6.10) with ESMTP id JAA06471 for ; Fri, 6 Oct 1995 09:08:13 -0400 Received: from mmserver.mm.mtu.edu (mmserver.mm.mtu.edu [141.219.20.61]) by mtu.edu (8.6.10/8.6.10) with ESMTP id JAA09570 for ; Fri, 6 Oct 1995 09:08:10 -0400 Received: from metlab3.my.mtu.edu (metlab3.my.mtu.edu [141.219.20.83]) by mmserver.mm.mtu.edu (8.6.9/MTU-1.3) with SMTP id JAA02853 for ; Fri, 6 Oct 1995 09:07:38 -0400 From: "Paul E. Campbell" Received: (from pecampbe@localhost) by metlab3.my.mtu.edu (8.6.9/MTU-1.2) id JAA17329 for diy_efi@coulomb.eng.ohio-state.edu; Fri, 6 Oct 1995 09:07:37 -0400 Message-Id: <199510061307.JAA17329@metlab3.my.mtu.edu> Subject: Building an MSD-CD To: diy_efi (DIY EFI) Date: Fri, 6 Oct 1995 09:07:35 -0400 (EDT) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Length: 6405 Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Okay, I went down to the library and got everything I could on high voltage stuff... First, let's look at a spark gap. Essentially, you've got an insulating gap (of air in this case). The conductivity of this gap is essentially miniscule under normal conditions. When you hit a particular voltage (which pretty much has to be determined experimentally) or higher, then the electrons will go into a type of "avalanche" mode where the conductivity of the gap goes way up (alternatively, the resistance goes way down). We won't have electrons accelerated fast enough to make a difference, so for our purposes, the time it takes for the gap to go into breakdown/avalanche mode is about 10^-8 secs. (about 10 nanoseconds). After this occurs, the air affected in the gap will be in a plasma-like state. Second, all capacitive high voltage impulse type circuits work by feeding the output of a high voltage power source to the capacitor and charging it up. When the voltage reaches the breakdown voltage of the spark gap, the capacitor rapidly dumps the charge it held. So this means we really need a high voltage DC-DC convertor (boost convertor). These types of circuits are also known as charge pumps. These things look like this: +----------+---Inductor-----+-----Diode >|-------------+--------Spark gap--+ | | | | | + | | | | Battery Capacitor 1 Switch Capacitor 2 | - | | | | | | | | | +----------+----------------+--------------------------+-------------------+ Okay, this is the basic circuit. I've deleted the usual control circuitry since we're not going to have to worry about creating a DC voltage of X at say +/-0.1 volts (this would be some sort of sensor or transformer on the high voltage side). Capacitor 1 is just there to smooth out the battery power. Okay, close the switch. The inductor starts charging up. Now open the switch. The collapsing magnetic field in the inductor continues to conduct via capacitor 2. Continue toggling the switch until the spark gap reaches breakdown and drains the capacitor. This is pretty much identical to the old flyback circuit in television sets. In practice, you'd use a high voltage transistor (power FET or IGBT) in place of the switch and add some digital controls to it for gating and such. If you are a mechanical engineer, the inductor and capacitor store energy. Since the inductor is a coil of wire, it takes time for the flow in the inductor to reach the peak. The diode is essentially a "one-way valve". The Switch is a "2-way valve" and the battery is a pump. We build up a good flow in the inductor, which acts like a piston; it builds up inertia (not sure what the fluid term for this action is). Then open the switch (2-way valve). The capacitor is more like a dam (holds whatever head we build up in it). So the flow continues out of the inductor and builds up in the capacitor as long as there is still inertia remaining in the inductor to drive the flow. Successive cycles of the switch build up a higher and higher head in the capacitor until the "dam" collapses (the spark gap fires), causing the charge that built up in the capacitor to flow out. There is another variation on this circuit, as follows. +----------+---Switch-------+ +--Diode >|-------------+--------Spark gap--+ | | | | | | + | | | | | Battery Capacitor 1 Transformer Capacitor 2 | - | | | | | | | | | | | +----------+----------------+ +-----------------------+-------------------+ In this case, the switch-inductor circuit acts as before on the transformer primary. When the field collapses, the transformer secondary feeds charge into Capacitor 2. The difference is that the turns ratio of the transformer gives you an additional voltage multiplication. Other advantages are isolation and in DC-DC convertors, the transformer version can be smaller than the inductor version (not sure if this applies for this application). There is another version called the buck-boost convertor. In this case, you can get high negative voltages rather than positive voltages. +----------+---Switch-------+-----Diode |<-------------+--------Spark gap--+ | | | | | + | | | | Battery Capacitor 1 Inductor Capacitor 2 | - | | | | | | | | | +----------+----------------+--------------------------+-------------------+ Notice that the only real change is the diode is reversed. In this circuit, the battery is out of the loop when the switch is open. The inductor conducts as before but it reverses the flow in the capacitor-spark gap circuit. There are also voltage multiplier ladders made out of spark gaps and capacitors and also voltage multiplier ladders made out of diodes and capacitors, but they are generally not as efficient in their power usage as the circuits above. When the above circuits are used as DC-DC convertors, Capacitor 2 is enormous so that the voltage ripple is minimized. The spark gap becomes a normal load. Even computer "switching power supplies" use similar convertors to the above circuits. A pair of resistors is attached on the "high voltage" side or as an additional small secondary on the transformer. This is used as the input to the control circuit. The control circuit usually varies the duty cycle (on-time to off-time of the switch) although some versions vary the frequency. The resulting voltages are as follows: Boost convertor: Vout=Vin/(1-Duty Cycle) Buck-Boost: Vout=-Vin*(Duty Cycle)/(1-Duty Cycle) Transformer Coupled Boost Convertor: Vout=Vin*N*(Duty Cycle)/(1-Duty Cycle) where N is the turns ratio From owner-diy_efi-archive Fri Oct 6 21:43:57 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id VAA03090; Fri, 6 Oct 1995 21:28:53 GMT Return-Path: Received: from dub-img-2.compuserve.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id RAA03076; Fri, 6 Oct 1995 17:28:49 -0400 Received: by dub-img-2.compuserve.com (8.6.10/5.950515) id RAA09625; Fri, 6 Oct 1995 17:28:28 -0400 Date: 06 Oct 95 17:26:15 EDT From: "Roger S. Cohen" <72772.2212@compuserve.com> To: DIY_EFI Subject: Research Message-ID: <951006212614_72772.2212_EHL253-1@CompuServe.COM> Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi DIYers, I spent the afternoon at the local library looking for info on the ALDL Serial data format to a SCAN tool ... with no luck! But did find two things of interest to the group: Mitchells On Demand - for free AND a citation for new literature in SAE's Automotive Engineering (V88, 6/80): "Zirconia Oxygen Sensor - An Equivalent Circuit Model" - Fleming, Research Labs, GM, Warren, MI. Unfortunately, the latest issue was 12/80 so I am still looking for the SCAN data. Any ideas? Roger Cohen 72772.2212@compuserve.com From owner-diy_efi-archive Fri Oct 6 23:03:15 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id WAA03235; Fri, 6 Oct 1995 22:52:04 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id SAA03220; Fri, 6 Oct 1995 18:52:00 -0400 From: postmaster@hull.ac.uk Message-Id: <199510062252.SAA03220@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <11498-0@mailhub1.hull.ac.uk>; Fri, 6 Oct 1995 23:45:39 +0100 Date: Fri, 6 Oct 1995 23:45:37 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Fri, 6 Oct 1995 23:44:19 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id VAA03090; Fri, 6 Oct 1995 21:28:53 GMT Received: from dub-img-2.compuserve.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id RAA03076; Fri, 6 Oct 1995 17:28:49 -0400 Received: by dub-img-2.compuserve.com (8.6.10/5.950515) id RAA09625; Fri, 6 Oct 1995 17:28:28 -0400 Date: 06 Oct 95 17:26:15 EDT From: "Roger S. Cohen" <72772.2212@COMPUSERVE.COM> To: DIY_EFI Subject: Research Message-ID: <951006212614_72772.2212_EHL253-1@CompuServe.COM> Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi DIYers, I spent the afternoon at the local library looking for info on the ALDL Serial data format to a SCAN tool ... with no luck! But did find two things of interest to the group: Mitchells On Demand - for free AND a citation for new literature in SAE's Automotive Engineering (V88, 6/80): "Zirconia Oxygen Sensor - An Equivalent Circuit Model" - Fleming, Research Labs, GM, Warren, MI. Unfortunately, the latest issue was 12/80 so I am still looking for the SCAN data. Any ideas? Roger Cohen 72772.2212@compuserve.com From owner-diy_efi-archive Fri Oct 6 23:20:57 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA03295; Fri, 6 Oct 1995 23:16:55 GMT Return-Path: Received: from spot.Colorado.EDU by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id TAA03281; Fri, 6 Oct 1995 19:16:53 -0400 Received: (from ciciora@localhost) by spot.Colorado.EDU (8.6.12/8.6.12/CNS-3.6) id RAA01233; Fri, 6 Oct 1995 17:16:33 -0600 Date: Fri, 6 Oct 1995 17:16:32 -0600 (MDT) From: CICIORA STEVEN JOSEP To: DIY_EFI Subject: Intel Hex to .S19 converter In-Reply-To: <51@turbo.win-uk.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu O.K., One of my eprom programmers will only save a binary file, the other will save binary, or intel hex (but it will read *.s19 records!). So I got an image of the prom from my Beretta, and the SIM68 program from the Motorolla BBS, but SIM68 only wants *.s19 records. Anyone got any suggestions on how to convert binary files, or preferably intel hex files to motorola *.s19 records? Thanks for your time! -Steven Ciciora From owner-diy_efi-archive Fri Oct 6 23:39:48 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA03341; Fri, 6 Oct 1995 23:33:19 GMT Return-Path: Received: from ix9.ix.netcom.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id TAA03327; Fri, 6 Oct 1995 19:33:13 -0400 Received: from by ix9.ix.netcom.com (8.6.12/SMI-4.1/Netcom) id QAA04391; Fri, 6 Oct 1995 16:32:49 -0700 Date: Fri, 6 Oct 1995 16:32:49 -0700 Message-Id: <199510062332.QAA04391@ix9.ix.netcom.com> From: arthurok@ix.netcom.com (ARTHUR OKUN ) Subject: Re: Building an MSD-CD To: DIY_EFI Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu You wrote: > >Okay, I went down to the library and got everything I could on high voltage >stuff... > >First, let's look at a spark gap. Essentially, you've got an insulating gap >(of air in this case). The conductivity of this gap is essentially miniscule >under normal conditions. When you hit a particular voltage (which pretty much >has to be determined experimentally) or higher, then the electrons will go >into a type of "avalanche" mode where the conductivity of the gap goes way up >(alternatively, the resistance goes way down). We won't have electrons >accelerated fast enough to make a difference, so for our purposes, the time >it takes for the gap to go into breakdown/avalanche mode is about 10^-8 secs. >(about 10 nanoseconds). After this occurs, the air affected in the gap will >be in a plasma-like state. > >Second, all capacitive high voltage impulse type circuits work by feeding >the output of a high voltage power source to the capacitor and charging it up. >When the voltage reaches the breakdown voltage of the spark gap, the capacitor >rapidly dumps the charge it held. So this means we really need a high voltage >DC-DC convertor (boost convertor). These types of circuits are also known as >charge pumps. These things look like this: > > +----------+---Inductor-----+-----Diode >|-------------+--------Spark gap--+ > | | | | | > + | | | | >Battery Capacitor 1 Switch Capacitor 2 | > - | | | | > | | | | | > +----------+----------------+--------------------------+---------------- ---+ > >Okay, this is the basic circuit. I've deleted the usual control circuitry >since we're not going to have to worry about creating a DC voltage of X at >say +/-0.1 volts (this would be some sort of sensor or transformer on the >high voltage side). Capacitor 1 is just there to smooth out the battery >power. > >Okay, close the switch. The inductor starts charging up. Now open the switch. >The collapsing magnetic field in the inductor continues to conduct via >capacitor 2. Continue toggling the switch until the spark gap reaches >breakdown and drains the capacitor. This is pretty much identical to the >old flyback circuit in television sets. In practice, you'd use a high voltage >transistor (power FET or IGBT) in place of the switch and add some digital >controls to it for gating and such. > >If you are a mechanical engineer, the inductor and capacitor store energy. >Since the inductor is a coil of wire, it takes time for the flow in the >inductor to reach the peak. The diode is essentially a "one-way valve". The >Switch is a "2-way valve" and the battery is a pump. We build up a good flow >in the inductor, which acts like a piston; it builds up inertia (not sure what >the fluid term for this action is). Then open the switch (2-way valve). The >capacitor is more like a dam (holds whatever head we build up in it). So >the flow continues out of the inductor and builds up in the capacitor as long >as there is still inertia remaining in the inductor to drive the flow. >Successive cycles of the switch build up a higher and higher head in the >capacitor until the "dam" collapses (the spark gap fires), causing the charge >that built up in the capacitor to flow out. > >There is another variation on this circuit, as follows. > > +----------+---Switch-------+ +--Diode >|-------------+--------Spark gap--+ > | | | | | | > + | | | | | >Battery Capacitor 1 Transformer Capacitor 2 | > - | | | | | > | | | | | | > +----------+----------------+ +-----------------------+-------------------+ > >In this case, the switch-inductor circuit acts as before on the transformer >primary. When the field collapses, the transformer secondary feeds charge >into Capacitor 2. The difference is that the turns ratio of the transformer >gives you an additional voltage multiplication. Other advantages are isolation >and in DC-DC convertors, the transformer version can be smaller than the >inductor version (not sure if this applies for this application). > >There is another version called the buck-boost convertor. In this case, you >can get high negative voltages rather than positive voltages. > > +----------+---Switch-------+-----Diode |<-------------+--------Spark gap--+ > | | | | | > + | | | | >Battery Capacitor 1 Inductor Capacitor 2 | > - | | | | > | | | | | > +----------+----------------+--------------------------+---------------- ---+ > >Notice that the only real change is the diode is reversed. In this circuit, >the battery is out of the loop when the switch is open. The inductor conducts >as before but it reverses the flow in the capacitor-spark gap circuit. > >There are also voltage multiplier ladders made out of spark gaps and >capacitors and also voltage multiplier ladders made out of diodes and >capacitors, but they are generally not as efficient in their power usage as >the circuits above. > >When the above circuits are used as DC-DC convertors, Capacitor 2 is enormous >so that the voltage ripple is minimized. The spark gap becomes a normal load. >Even computer "switching power supplies" use similar convertors to the above >circuits. A pair of resistors is attached on the "high voltage" side or as >an additional small secondary on the transformer. This is used as the input >to the control circuit. The control circuit usually varies the duty cycle >(on-time to off-time of the switch) although some versions vary the frequency. >The resulting voltages are as follows: > >Boost convertor: Vout=Vin/(1-Duty Cycle) >Buck-Boost: Vout=-Vin*(Duty Cycle)/(1-Duty Cycle) >Transformer Coupled Boost Convertor: Vout=Vin*N*(Duty Cycle)/(1-Duty Cycle) > where N is the turns ratio > it shouldnt be that difficult to build a simple dc-dc converter(12v-~300vdc) and a coil switching circuit with cheap tv type components the trick is to put a capacitor accross the output transistor junction just like the condensor in an old fationed kettering type ignition circuit thats also done in tv h.v.supplies which i am familar with From owner-diy_efi-archive Sat Oct 7 00:01:49 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA03402; Fri, 6 Oct 1995 23:57:18 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id TAA03388; Fri, 6 Oct 1995 19:57:13 -0400 From: postmaster@hull.ac.uk Message-Id: <199510062357.TAA03388@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <12813-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 00:51:13 +0100 Date: Sat, 7 Oct 1995 00:51:10 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 00:50:47 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id WAA03235; Fri, 6 Oct 1995 22:52:04 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id SAA03220; Fri, 6 Oct 1995 18:52:00 -0400 From: postmaster@hull.ac.uk Message-Id: <199510062252.SAA03220@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <11498-0@mailhub1.hull.ac.uk>; Fri, 6 Oct 1995 23:45:39 +0100 Date: Fri, 6 Oct 1995 23:45:37 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Fri, 6 Oct 1995 23:44:19 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id VAA03090; Fri, 6 Oct 1995 21:28:53 GMT Received: from dub-img-2.compuserve.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id RAA03076; Fri, 6 Oct 1995 17:28:49 -0400 Received: by dub-img-2.compuserve.com (8.6.10/5.950515) id RAA09625; Fri, 6 Oct 1995 17:28:28 -0400 Date: 06 Oct 95 17:26:15 EDT From: "Roger S. Cohen" <72772.2212@COMPUSERVE.COM> To: DIY_EFI Subject: Research Message-ID: <951006212614_72772.2212_EHL253-1@CompuServe.COM> Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi DIYers, I spent the afternoon at the local library looking for info on the ALDL Serial data format to a SCAN tool ... with no luck! But did find two things of interest to the group: Mitchells On Demand - for free AND a citation for new literature in SAE's Automotive Engineering (V88, 6/80): "Zirconia Oxygen Sensor - An Equivalent Circuit Model" - Fleming, Research Labs, GM, Warren, MI. Unfortunately, the latest issue was 12/80 so I am still looking for the SCAN data. Any ideas? Roger Cohen 72772.2212@compuserve.com From owner-diy_efi-archive Sat Oct 7 00:18:44 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id AAA03458; Sat, 7 Oct 1995 00:12:39 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id UAA03444; Fri, 6 Oct 1995 20:12:35 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070012.UAA03444@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <13100-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:06:02 +0100 Date: Sat, 7 Oct 1995 01:05:59 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:05:08 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA03295; Fri, 6 Oct 1995 23:16:55 GMT Received: from spot.Colorado.EDU by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id TAA03281; Fri, 6 Oct 1995 19:16:53 -0400 Received: (from ciciora@localhost) by spot.Colorado.EDU (8.6.12/8.6.12/CNS-3.6) id RAA01233; Fri, 6 Oct 1995 17:16:33 -0600 Date: Fri, 6 Oct 1995 17:16:32 -0600 (MDT) From: CICIORA STEVEN JOSEP To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Intel Hex to .S19 converter In-Reply-To: <51@turbo.win-uk.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu O.K., One of my eprom programmers will only save a binary file, the other will save binary, or intel hex (but it will read *.s19 records!). So I got an image of the prom from my Beretta, and the SIM68 program from the Motorolla BBS, but SIM68 only wants *.s19 records. Anyone got any suggestions on how to convert binary files, or preferably intel hex files to motorola *.s19 records? Thanks for your time! -Steven Ciciora From owner-diy_efi-archive Sat Oct 7 00:38:33 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id AAA03507; Sat, 7 Oct 1995 00:34:47 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id UAA03493; Fri, 6 Oct 1995 20:34:42 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070034.UAA03493@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <13482-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:28:05 +0100 Date: Sat, 7 Oct 1995 01:28:03 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:27:44 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA03341; Fri, 6 Oct 1995 23:33:19 GMT Received: from ix9.ix.netcom.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id TAA03327; Fri, 6 Oct 1995 19:33:13 -0400 Received: from by ix9.ix.netcom.com (8.6.12/SMI-4.1/Netcom) id QAA04391; Fri, 6 Oct 1995 16:32:49 -0700 Date: Fri, 6 Oct 1995 16:32:49 -0700 Message-Id: <199510062332.QAA04391@ix9.ix.netcom.com> From: arthurok@ix.netcom.com (ARTHUR OKUN ) Subject: Re: Building an MSD-CD To: DIY_EFI@coulomb.eng.ohio-state.edu Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu You wrote: > >Okay, I went down to the library and got everything I could on high voltage >stuff... > >First, let's look at a spark gap. Essentially, you've got an insulating gap >(of air in this case). The conductivity of this gap is essentially miniscule >under normal conditions. When you hit a particular voltage (which pretty much >has to be determined experimentally) or higher, then the electrons will go >into a type of "avalanche" mode where the conductivity of the gap goes way up >(alternatively, the resistance goes way down). We won't have electrons >accelerated fast enough to make a difference, so for our purposes, the time >it takes for the gap to go into breakdown/avalanche mode is about 10^-8 secs. >(about 10 nanoseconds). After this occurs, the air affected in the gap will >be in a plasma-like state. > >Second, all capacitive high voltage impulse type circuits work by feeding >the output of a high voltage power source to the capacitor and charging it up. >When the voltage reaches the breakdown voltage of the spark gap, the capacitor >rapidly dumps the charge it held. So this means we really need a high voltage >DC-DC convertor (boost convertor). These types of circuits are also known as >charge pumps. These things look like this: > > +----------+---Inductor-----+-----Diode >|-------------+--------Spark gap--+ > | | | | | > + | | | | >Battery Capacitor 1 Switch Capacitor 2 | > - | | | | > | | | | | > +----------+----------------+--------------------------+---------------- ---+ > >Okay, this is the basic circuit. I've deleted the usual control circuitry >since we're not going to have to worry about creating a DC voltage of X at >say +/-0.1 volts (this would be some sort of sensor or transformer on the >high voltage side). Capacitor 1 is just there to smooth out the battery >power. > >Okay, close the switch. The inductor starts charging up. Now open the switch. >The collapsing magnetic field in the inductor continues to conduct via >capacitor 2. Continue toggling the switch until the spark gap reaches >breakdown and drains the capacitor. This is pretty much identical to the >old flyback circuit in television sets. In practice, you'd use a high voltage >transistor (power FET or IGBT) in place of the switch and add some digital >controls to it for gating and such. > >If you are a mechanical engineer, the inductor and capacitor store energy. >Since the inductor is a coil of wire, it takes time for the flow in the >inductor to reach the peak. The diode is essentially a "one-way valve". The >Switch is a "2-way valve" and the battery is a pump. We build up a good flow >in the inductor, which acts like a piston; it builds up inertia (not sure what >the fluid term for this action is). Then open the switch (2-way valve). The >capacitor is more like a dam (holds whatever head we build up in it). So >the flow continues out of the inductor and builds up in the capacitor as long >as there is still inertia remaining in the inductor to drive the flow. >Successive cycles of the switch build up a higher and higher head in the >capacitor until the "dam" collapses (the spark gap fires), causing the charge >that built up in the capacitor to flow out. > >There is another variation on this circuit, as follows. > > +----------+---Switch-------+ +--Diode >|-------------+--------Spark gap--+ > | | | | | | > + | | | | | >Battery Capacitor 1 Transformer Capacitor 2 | > - | | | | | > | | | | | | > +----------+----------------+ +-----------------------+-------------------+ > >In this case, the switch-inductor circuit acts as before on the transformer >primary. When the field collapses, the transformer secondary feeds charge >into Capacitor 2. The difference is that the turns ratio of the transformer >gives you an additional voltage multiplication. Other advantages are isolation >and in DC-DC convertors, the transformer version can be smaller than the >inductor version (not sure if this applies for this application). > >There is another version called the buck-boost convertor. In this case, you >can get high negative voltages rather than positive voltages. > > +----------+---Switch-------+-----Diode |<-------------+--------Spark gap--+ > | | | | | > + | | | | >Battery Capacitor 1 Inductor Capacitor 2 | > - | | | | > | | | | | > +----------+----------------+--------------------------+---------------- ---+ > >Notice that the only real change is the diode is reversed. In this circuit, >the battery is out of the loop when the switch is open. The inductor conducts >as before but it reverses the flow in the capacitor-spark gap circuit. > >There are also voltage multiplier ladders made out of spark gaps and >capacitors and also voltage multiplier ladders made out of diodes and >capacitors, but they are generally not as efficient in their power usage as >the circuits above. > >When the above circuits are used as DC-DC convertors, Capacitor 2 is enormous >so that the voltage ripple is minimized. The spark gap becomes a normal load. >Even computer "switching power supplies" use similar convertors to the above >circuits. A pair of resistors is attached on the "high voltage" side or as >an additional small secondary on the transformer. This is used as the input >to the control circuit. The control circuit usually varies the duty cycle >(on-time to off-time of the switch) although some versions vary the frequency. >The resulting voltages are as follows: > >Boost convertor: Vout=Vin/(1-Duty Cycle) >Buck-Boost: Vout=-Vin*(Duty Cycle)/(1-Duty Cycle) >Transformer Coupled Boost Convertor: Vout=Vin*N*(Duty Cycle)/(1-Duty Cycle) > where N is the turns ratio > it shouldnt be that difficult to build a simple dc-dc converter(12v-~300vdc) and a coil switching circuit with cheap tv type components the trick is to put a capacitor accross the output transistor junction just like the condensor in an old fationed kettering type ignition circuit thats also done in tv h.v.supplies which i am familar with From owner-diy_efi-archive Sat Oct 7 00:51:47 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id AAA03536; Sat, 7 Oct 1995 00:44:08 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id UAA03522; Fri, 6 Oct 1995 20:44:04 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070044.UAA03522@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <13639-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:37:28 +0100 Date: Sat, 7 Oct 1995 01:37:26 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:37:13 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA03402; Fri, 6 Oct 1995 23:57:18 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id TAA03388; Fri, 6 Oct 1995 19:57:13 -0400 From: postmaster@hull.ac.uk Message-Id: <199510062357.TAA03388@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <12813-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 00:51:13 +0100 Date: Sat, 7 Oct 1995 00:51:10 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 00:50:47 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id WAA03235; Fri, 6 Oct 1995 22:52:04 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id SAA03220; Fri, 6 Oct 1995 18:52:00 -0400 From: postmaster@hull.ac.uk Message-Id: <199510062252.SAA03220@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <11498-0@mailhub1.hull.ac.uk>; Fri, 6 Oct 1995 23:45:39 +0100 Date: Fri, 6 Oct 1995 23:45:37 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Fri, 6 Oct 1995 23:44:19 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id VAA03090; Fri, 6 Oct 1995 21:28:53 GMT Received: from dub-img-2.compuserve.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id RAA03076; Fri, 6 Oct 1995 17:28:49 -0400 Received: by dub-img-2.compuserve.com (8.6.10/5.950515) id RAA09625; Fri, 6 Oct 1995 17:28:28 -0400 Date: 06 Oct 95 17:26:15 EDT From: "Roger S. Cohen" <72772.2212@COMPUSERVE.COM> To: DIY_EFI Subject: Research Message-ID: <951006212614_72772.2212_EHL253-1@CompuServe.COM> Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi DIYers, I spent the afternoon at the local library looking for info on the ALDL Serial data format to a SCAN tool ... with no luck! But did find two things of interest to the group: Mitchells On Demand - for free AND a citation for new literature in SAE's Automotive Engineering (V88, 6/80): "Zirconia Oxygen Sensor - An Equivalent Circuit Model" - Fleming, Research Labs, GM, Warren, MI. Unfortunately, the latest issue was 12/80 so I am still looking for the SCAN data. Any ideas? Roger Cohen 72772.2212@compuserve.com From owner-diy_efi-archive Sat Oct 7 01:11:38 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id BAA03623; Sat, 7 Oct 1995 01:05:07 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id VAA03609; Fri, 6 Oct 1995 21:05:01 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070105.VAA03609@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <14006-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:57:55 +0100 Date: Sat, 7 Oct 1995 01:57:53 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:57:24 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id AAA03458; Sat, 7 Oct 1995 00:12:39 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id UAA03444; Fri, 6 Oct 1995 20:12:35 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070012.UAA03444@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <13100-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:06:02 +0100 Date: Sat, 7 Oct 1995 01:05:59 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:05:08 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA03295; Fri, 6 Oct 1995 23:16:55 GMT Received: from spot.Colorado.EDU by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id TAA03281; Fri, 6 Oct 1995 19:16:53 -0400 Received: (from ciciora@localhost) by spot.Colorado.EDU (8.6.12/8.6.12/CNS-3.6) id RAA01233; Fri, 6 Oct 1995 17:16:33 -0600 Date: Fri, 6 Oct 1995 17:16:32 -0600 (MDT) From: CICIORA STEVEN JOSEP To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Intel Hex to .S19 converter In-Reply-To: <51@turbo.win-uk.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu O.K., One of my eprom programmers will only save a binary file, the other will save binary, or intel hex (but it will read *.s19 records!). So I got an image of the prom from my Beretta, and the SIM68 program from the Motorolla BBS, but SIM68 only wants *.s19 records. Anyone got any suggestions on how to convert binary files, or preferably intel hex files to motorola *.s19 records? Thanks for your time! -Steven Ciciora From owner-diy_efi-archive Sat Oct 7 01:15:59 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id BAA03652; Sat, 7 Oct 1995 01:12:12 GMT Return-Path: Received: from dione.gi.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id VAA03638; Fri, 6 Oct 1995 21:12:09 -0400 Received: from gismtpgate.gi.com (po1.gi.com) by VCA.GI.COM (PMDF V5.0-5 #7516) id <01HW4NVXG6AOK6PEA6@VCA.GI.COM> for DIY_EFI@coulomb.eng.ohio-state.edu; Fri, 06 Oct 1995 18:11:42 -0700 (PDT) Received: by gismtpgate.gi.com with Microsoft Mail id <3075D3B6@gismtpgate.gi.com>; Fri, 06 Oct 1995 18:11:18 -0700 (PDT) Date: Fri, 06 Oct 1995 18:11:00 -0700 (PDT) From: "Zublin, Bryan (SD-MS)" Subject: Haltech throttle bodies and Re: Fuel injection questions To: "diy_efi (postings)" Message-id: <3075D3B6@gismtpgate.gi.com> X-Mailer: Microsoft Mail V3.0 Content-transfer-encoding: 7BIT Encoding: 26 TEXT Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Tom "How could the motor be too lean?" Walter writes: >REVERSIONS: While we all realize the the closing of the intake valve >will cause a "back pulse" of air through the intake track, I was not >really aware of how critical it could be. An engine builder could not >get enough fuel into an injected engine... at WOT the engine was running >LEAN, despite "having more than enough fuel to flood it". Hmm, problem >was a unique reversion pattern. Rather than the usual area around the >intake walls, there was ALSO an effected area in the middle. Dead center >of the intake area of the FUEL injector jet!!! The reversion pulse of this >radically cammed motor was enough to blow fuel back out the short intake >track! [Haltech throttle bodies... look like Weber DCOE's with an injector >port]. Result was interesting . So when done with all the calculations, >and theories, it is great fun to get it all blown back in your face! ;-) Tom, What was the solution to this problem? Different cam timing? Moved injector? Has anyone else on this list used the Haltech throttle bodies? I have considered using them in place of the Weber DCOE carbs on my 1980 Toyota Celica. Bryan Zublin bzublin@gi.com From owner-diy_efi-archive Sat Oct 7 01:35:41 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id BAA03715; Sat, 7 Oct 1995 01:33:47 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id VAA03701; Fri, 6 Oct 1995 21:33:43 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070133.VAA03701@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <14506-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 02:24:10 +0100 Date: Sat, 7 Oct 1995 02:24:08 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 02:21:40 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id AAA03507; Sat, 7 Oct 1995 00:34:47 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id UAA03493; Fri, 6 Oct 1995 20:34:42 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070034.UAA03493@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <13482-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:28:05 +0100 Date: Sat, 7 Oct 1995 01:28:03 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:27:44 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA03341; Fri, 6 Oct 1995 23:33:19 GMT Received: from ix9.ix.netcom.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id TAA03327; Fri, 6 Oct 1995 19:33:13 -0400 Received: from by ix9.ix.netcom.com (8.6.12/SMI-4.1/Netcom) id QAA04391; Fri, 6 Oct 1995 16:32:49 -0700 Date: Fri, 6 Oct 1995 16:32:49 -0700 Message-Id: <199510062332.QAA04391@ix9.ix.netcom.com> From: arthurok@ix.netcom.com (ARTHUR OKUN ) Subject: Re: Building an MSD-CD To: DIY_EFI@coulomb.eng.ohio-state.edu Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu You wrote: > >Okay, I went down to the library and got everything I could on high voltage >stuff... > >First, let's look at a spark gap. Essentially, you've got an insulating gap >(of air in this case). The conductivity of this gap is essentially miniscule >under normal conditions. When you hit a particular voltage (which pretty much >has to be determined experimentally) or higher, then the electrons will go >into a type of "avalanche" mode where the conductivity of the gap goes way up >(alternatively, the resistance goes way down). We won't have electrons >accelerated fast enough to make a difference, so for our purposes, the time >it takes for the gap to go into breakdown/avalanche mode is about 10^-8 secs. >(about 10 nanoseconds). After this occurs, the air affected in the gap will >be in a plasma-like state. > >Second, all capacitive high voltage impulse type circuits work by feeding >the output of a high voltage power source to the capacitor and charging it up. >When the voltage reaches the breakdown voltage of the spark gap, the capacitor >rapidly dumps the charge it held. So this means we really need a high voltage >DC-DC convertor (boost convertor). These types of circuits are also known as >charge pumps. These things look like this: > > +----------+---Inductor-----+-----Diode >|-------------+--------Spark gap--+ > | | | | | > + | | | | >Battery Capacitor 1 Switch Capacitor 2 | > - | | | | > | | | | | > +----------+----------------+--------------------------+---------------- ---+ > >Okay, this is the basic circuit. I've deleted the usual control circuitry >since we're not going to have to worry about creating a DC voltage of X at >say +/-0.1 volts (this would be some sort of sensor or transformer on the >high voltage side). Capacitor 1 is just there to smooth out the battery >power. > >Okay, close the switch. The inductor starts charging up. Now open the switch. >The collapsing magnetic field in the inductor continues to conduct via >capacitor 2. Continue toggling the switch until the spark gap reaches >breakdown and drains the capacitor. This is pretty much identical to the >old flyback circuit in television sets. In practice, you'd use a high voltage >transistor (power FET or IGBT) in place of the switch and add some digital >controls to it for gating and such. > >If you are a mechanical engineer, the inductor and capacitor store energy. >Since the inductor is a coil of wire, it takes time for the flow in the >inductor to reach the peak. The diode is essentially a "one-way valve". The >Switch is a "2-way valve" and the battery is a pump. We build up a good flow >in the inductor, which acts like a piston; it builds up inertia (not sure what >the fluid term for this action is). Then open the switch (2-way valve). The >capacitor is more like a dam (holds whatever head we build up in it). So >the flow continues out of the inductor and builds up in the capacitor as long >as there is still inertia remaining in the inductor to drive the flow. >Successive cycles of the switch build up a higher and higher head in the >capacitor until the "dam" collapses (the spark gap fires), causing the charge >that built up in the capacitor to flow out. > >There is another variation on this circuit, as follows. > > +----------+---Switch-------+ +--Diode >|-------------+--------Spark gap--+ > | | | | | | > + | | | | | >Battery Capacitor 1 Transformer Capacitor 2 | > - | | | | | > | | | | | | > +----------+----------------+ +-----------------------+-------------------+ > >In this case, the switch-inductor circuit acts as before on the transformer >primary. When the field collapses, the transformer secondary feeds charge >into Capacitor 2. The difference is that the turns ratio of the transformer >gives you an additional voltage multiplication. Other advantages are isolation >and in DC-DC convertors, the transformer version can be smaller than the >inductor version (not sure if this applies for this application). > >There is another version called the buck-boost convertor. In this case, you >can get high negative voltages rather than positive voltages. > > +----------+---Switch-------+-----Diode |<-------------+--------Spark gap--+ > | | | | | > + | | | | >Battery Capacitor 1 Inductor Capacitor 2 | > - | | | | > | | | | | > +----------+----------------+--------------------------+---------------- ---+ > >Notice that the only real change is the diode is reversed. In this circuit, >the battery is out of the loop when the switch is open. The inductor conducts >as before but it reverses the flow in the capacitor-spark gap circuit. > >There are also voltage multiplier ladders made out of spark gaps and >capacitors and also voltage multiplier ladders made out of diodes and >capacitors, but they are generally not as efficient in their power usage as >the circuits above. > >When the above circuits are used as DC-DC convertors, Capacitor 2 is enormous >so that the voltage ripple is minimized. The spark gap becomes a normal load. >Even computer "switching power supplies" use similar convertors to the above >circuits. A pair of resistors is attached on the "high voltage" side or as >an additional small secondary on the transformer. This is used as the input >to the control circuit. The control circuit usually varies the duty cycle >(on-time to off-time of the switch) although some versions vary the frequency. >The resulting voltages are as follows: > >Boost convertor: Vout=Vin/(1-Duty Cycle) >Buck-Boost: Vout=-Vin*(Duty Cycle)/(1-Duty Cycle) >Transformer Coupled Boost Convertor: Vout=Vin*N*(Duty Cycle)/(1-Duty Cycle) > where N is the turns ratio > it shouldnt be that difficult to build a simple dc-dc converter(12v-~300vdc) and a coil switching circuit with cheap tv type components the trick is to put a capacitor accross the output transistor junction just like the condensor in an old fationed kettering type ignition circuit thats also done in tv h.v.supplies which i am familar with From owner-diy_efi-archive Sat Oct 7 02:16:59 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id CAA03855; Sat, 7 Oct 1995 02:14:37 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id WAA03841; Fri, 6 Oct 1995 22:14:33 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070214.WAA03841@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <15451-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 03:08:06 +0100 Date: Sat, 7 Oct 1995 03:08:04 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 03:07:44 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id BAA03623; Sat, 7 Oct 1995 01:05:07 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id VAA03609; Fri, 6 Oct 1995 21:05:01 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070105.VAA03609@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <14006-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:57:55 +0100 Date: Sat, 7 Oct 1995 01:57:53 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:57:24 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id AAA03458; Sat, 7 Oct 1995 00:12:39 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id UAA03444; Fri, 6 Oct 1995 20:12:35 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070012.UAA03444@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <13100-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:06:02 +0100 Date: Sat, 7 Oct 1995 01:05:59 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:05:08 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA03295; Fri, 6 Oct 1995 23:16:55 GMT Received: from spot.Colorado.EDU by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id TAA03281; Fri, 6 Oct 1995 19:16:53 -0400 Received: (from ciciora@localhost) by spot.Colorado.EDU (8.6.12/8.6.12/CNS-3.6) id RAA01233; Fri, 6 Oct 1995 17:16:33 -0600 Date: Fri, 6 Oct 1995 17:16:32 -0600 (MDT) From: CICIORA STEVEN JOSEP To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Intel Hex to .S19 converter In-Reply-To: <51@turbo.win-uk.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu O.K., One of my eprom programmers will only save a binary file, the other will save binary, or intel hex (but it will read *.s19 records!). So I got an image of the prom from my Beretta, and the SIM68 program from the Motorolla BBS, but SIM68 only wants *.s19 records. Anyone got any suggestions on how to convert binary files, or preferably intel hex files to motorola *.s19 records? Thanks for your time! -Steven Ciciora From owner-diy_efi-archive Sat Oct 7 02:19:21 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id CAA03888; Sat, 7 Oct 1995 02:18:14 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id WAA03873; Fri, 6 Oct 1995 22:18:11 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070218.WAA03873@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <15588-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 03:12:05 +0100 Date: Sat, 7 Oct 1995 03:12:00 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 03:11:01 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id BAA03652; Sat, 7 Oct 1995 01:12:12 GMT Received: from dione.gi.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id VAA03638; Fri, 6 Oct 1995 21:12:09 -0400 Received: from gismtpgate.gi.com (po1.gi.com) by VCA.GI.COM (PMDF V5.0-5 #7516) id <01HW4NVXG6AOK6PEA6@VCA.GI.COM> for DIY_EFI@coulomb.eng.ohio-state.edu; Fri, 06 Oct 1995 18:11:42 -0700 (PDT) Received: by gismtpgate.gi.com with Microsoft Mail id <3075D3B6@gismtpgate.gi.com>; Fri, 06 Oct 1995 18:11:18 -0700 (PDT) Date: Fri, 06 Oct 1995 18:11:00 -0700 (PDT) From: "Zublin, Bryan (SD-MS)" Subject: Haltech throttle bodies and Re: Fuel injection questions To: "diy_efi (postings)" Message-id: <3075D3B6@gismtpgate.gi.com> X-Mailer: Microsoft Mail V3.0 Content-transfer-encoding: 7BIT Encoding: 26 TEXT Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Tom "How could the motor be too lean?" Walter writes: >REVERSIONS: While we all realize the the closing of the intake valve >will cause a "back pulse" of air through the intake track, I was not >really aware of how critical it could be. An engine builder could not >get enough fuel into an injected engine... at WOT the engine was running >LEAN, despite "having more than enough fuel to flood it". Hmm, problem >was a unique reversion pattern. Rather than the usual area around the >intake walls, there was ALSO an effected area in the middle. Dead center >of the intake area of the FUEL injector jet!!! The reversion pulse of this >radically cammed motor was enough to blow fuel back out the short intake >track! [Haltech throttle bodies... look like Weber DCOE's with an injector >port]. Result was interesting . So when done with all the calculations, >and theories, it is great fun to get it all blown back in your face! ;-) Tom, What was the solution to this problem? Different cam timing? Moved injector? Has anyone else on this list used the Haltech throttle bodies? I have considered using them in place of the Weber DCOE carbs on my 1980 Toyota Celica. Bryan Zublin bzublin@gi.com From owner-diy_efi-archive Sat Oct 7 02:27:36 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id CAA03918; Sat, 7 Oct 1995 02:25:38 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id WAA03904; Fri, 6 Oct 1995 22:25:32 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070225.WAA03904@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <15729-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 03:18:41 +0100 Date: Sat, 7 Oct 1995 03:18:40 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 03:17:51 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id BAA03715; Sat, 7 Oct 1995 01:33:47 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id VAA03701; Fri, 6 Oct 1995 21:33:43 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070133.VAA03701@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <14506-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 02:24:10 +0100 Date: Sat, 7 Oct 1995 02:24:08 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 02:21:40 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id AAA03507; Sat, 7 Oct 1995 00:34:47 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id UAA03493; Fri, 6 Oct 1995 20:34:42 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070034.UAA03493@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <13482-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:28:05 +0100 Date: Sat, 7 Oct 1995 01:28:03 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:27:44 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA03341; Fri, 6 Oct 1995 23:33:19 GMT Received: from ix9.ix.netcom.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id TAA03327; Fri, 6 Oct 1995 19:33:13 -0400 Received: from by ix9.ix.netcom.com (8.6.12/SMI-4.1/Netcom) id QAA04391; Fri, 6 Oct 1995 16:32:49 -0700 Date: Fri, 6 Oct 1995 16:32:49 -0700 Message-Id: <199510062332.QAA04391@ix9.ix.netcom.com> From: arthurok@ix.netcom.com (ARTHUR OKUN ) Subject: Re: Building an MSD-CD To: DIY_EFI@coulomb.eng.ohio-state.edu Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu You wrote: > >Okay, I went down to the library and got everything I could on high voltage >stuff... > >First, let's look at a spark gap. Essentially, you've got an insulating gap >(of air in this case). The conductivity of this gap is essentially miniscule >under normal conditions. When you hit a particular voltage (which pretty much >has to be determined experimentally) or higher, then the electrons will go >into a type of "avalanche" mode where the conductivity of the gap goes way up >(alternatively, the resistance goes way down). We won't have electrons >accelerated fast enough to make a difference, so for our purposes, the time >it takes for the gap to go into breakdown/avalanche mode is about 10^-8 secs. >(about 10 nanoseconds). After this occurs, the air affected in the gap will >be in a plasma-like state. > >Second, all capacitive high voltage impulse type circuits work by feeding >the output of a high voltage power source to the capacitor and charging it up. >When the voltage reaches the breakdown voltage of the spark gap, the capacitor >rapidly dumps the charge it held. So this means we really need a high voltage >DC-DC convertor (boost convertor). These types of circuits are also known as >charge pumps. These things look like this: > > +----------+---Inductor-----+-----Diode >|-------------+--------Spark gap--+ > | | | | | > + | | | | >Battery Capacitor 1 Switch Capacitor 2 | > - | | | | > | | | | | > +----------+----------------+--------------------------+---------------- ---+ > >Okay, this is the basic circuit. I've deleted the usual control circuitry >since we're not going to have to worry about creating a DC voltage of X at >say +/-0.1 volts (this would be some sort of sensor or transformer on the >high voltage side). Capacitor 1 is just there to smooth out the battery >power. > >Okay, close the switch. The inductor starts charging up. Now open the switch. >The collapsing magnetic field in the inductor continues to conduct via >capacitor 2. Continue toggling the switch until the spark gap reaches >breakdown and drains the capacitor. This is pretty much identical to the >old flyback circuit in television sets. In practice, you'd use a high voltage >transistor (power FET or IGBT) in place of the switch and add some digital >controls to it for gating and such. > >If you are a mechanical engineer, the inductor and capacitor store energy. >Since the inductor is a coil of wire, it takes time for the flow in the >inductor to reach the peak. The diode is essentially a "one-way valve". The >Switch is a "2-way valve" and the battery is a pump. We build up a good flow >in the inductor, which acts like a piston; it builds up inertia (not sure what >the fluid term for this action is). Then open the switch (2-way valve). The >capacitor is more like a dam (holds whatever head we build up in it). So >the flow continues out of the inductor and builds up in the capacitor as long >as there is still inertia remaining in the inductor to drive the flow. >Successive cycles of the switch build up a higher and higher head in the >capacitor until the "dam" collapses (the spark gap fires), causing the charge >that built up in the capacitor to flow out. > >There is another variation on this circuit, as follows. > > +----------+---Switch-------+ +--Diode >|-------------+--------Spark gap--+ > | | | | | | > + | | | | | >Battery Capacitor 1 Transformer Capacitor 2 | > - | | | | | > | | | | | | > +----------+----------------+ +-----------------------+-------------------+ > >In this case, the switch-inductor circuit acts as before on the transformer >primary. When the field collapses, the transformer secondary feeds charge >into Capacitor 2. The difference is that the turns ratio of the transformer >gives you an additional voltage multiplication. Other advantages are isolation >and in DC-DC convertors, the transformer version can be smaller than the >inductor version (not sure if this applies for this application). > >There is another version called the buck-boost convertor. In this case, you >can get high negative voltages rather than positive voltages. > > +----------+---Switch-------+-----Diode |<-------------+--------Spark gap--+ > | | | | | > + | | | | >Battery Capacitor 1 Inductor Capacitor 2 | > - | | | | > | | | | | > +----------+----------------+--------------------------+---------------- ---+ > >Notice that the only real change is the diode is reversed. In this circuit, >the battery is out of the loop when the switch is open. The inductor conducts >as before but it reverses the flow in the capacitor-spark gap circuit. > >There are also voltage multiplier ladders made out of spark gaps and >capacitors and also voltage multiplier ladders made out of diodes and >capacitors, but they are generally not as efficient in their power usage as >the circuits above. > >When the above circuits are used as DC-DC convertors, Capacitor 2 is enormous >so that the voltage ripple is minimized. The spark gap becomes a normal load. >Even computer "switching power supplies" use similar convertors to the above >circuits. A pair of resistors is attached on the "high voltage" side or as >an additional small secondary on the transformer. This is used as the input >to the control circuit. The control circuit usually varies the duty cycle >(on-time to off-time of the switch) although some versions vary the frequency. >The resulting voltages are as follows: > >Boost convertor: Vout=Vin/(1-Duty Cycle) >Buck-Boost: Vout=-Vin*(Duty Cycle)/(1-Duty Cycle) >Transformer Coupled Boost Convertor: Vout=Vin*N*(Duty Cycle)/(1-Duty Cycle) > where N is the turns ratio > it shouldnt be that difficult to build a simple dc-dc converter(12v-~300vdc) and a coil switching circuit with cheap tv type components the trick is to put a capacitor accross the output transistor junction just like the condensor in an old fationed kettering type ignition circuit thats also done in tv h.v.supplies which i am familar with From owner-diy_efi-archive Sat Oct 7 03:11:27 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04099; Sat, 7 Oct 1995 03:08:48 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04085; Fri, 6 Oct 1995 23:08:42 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070308.XAA04085@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <16617-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 03:59:58 +0100 Date: Sat, 7 Oct 1995 03:59:57 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 03:59:43 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id CAA03888; Sat, 7 Oct 1995 02:18:14 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id WAA03873; Fri, 6 Oct 1995 22:18:11 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070218.WAA03873@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <15588-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 03:12:05 +0100 Date: Sat, 7 Oct 1995 03:12:00 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 03:11:01 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id BAA03652; Sat, 7 Oct 1995 01:12:12 GMT Received: from dione.gi.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id VAA03638; Fri, 6 Oct 1995 21:12:09 -0400 Received: from gismtpgate.gi.com (po1.gi.com) by VCA.GI.COM (PMDF V5.0-5 #7516) id <01HW4NVXG6AOK6PEA6@VCA.GI.COM> for DIY_EFI@coulomb.eng.ohio-state.edu; Fri, 06 Oct 1995 18:11:42 -0700 (PDT) Received: by gismtpgate.gi.com with Microsoft Mail id <3075D3B6@gismtpgate.gi.com>; Fri, 06 Oct 1995 18:11:18 -0700 (PDT) Date: Fri, 06 Oct 1995 18:11:00 -0700 (PDT) From: "Zublin, Bryan (SD-MS)" Subject: Haltech throttle bodies and Re: Fuel injection questions To: "diy_efi (postings)" Message-id: <3075D3B6@gismtpgate.gi.com> X-Mailer: Microsoft Mail V3.0 Content-transfer-encoding: 7BIT Encoding: 26 TEXT Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Tom "How could the motor be too lean?" Walter writes: >REVERSIONS: While we all realize the the closing of the intake valve >will cause a "back pulse" of air through the intake track, I was not >really aware of how critical it could be. An engine builder could not >get enough fuel into an injected engine... at WOT the engine was running >LEAN, despite "having more than enough fuel to flood it". Hmm, problem >was a unique reversion pattern. Rather than the usual area around the >intake walls, there was ALSO an effected area in the middle. Dead center >of the intake area of the FUEL injector jet!!! The reversion pulse of this >radically cammed motor was enough to blow fuel back out the short intake >track! [Haltech throttle bodies... look like Weber DCOE's with an injector >port]. Result was interesting . So when done with all the calculations, >and theories, it is great fun to get it all blown back in your face! ;-) Tom, What was the solution to this problem? Different cam timing? Moved injector? Has anyone else on this list used the Haltech throttle bodies? I have considered using them in place of the Weber DCOE carbs on my 1980 Toyota Celica. Bryan Zublin bzublin@gi.com From owner-diy_efi-archive Sat Oct 7 03:17:03 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04141; Sat, 7 Oct 1995 03:15:50 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04127; Fri, 6 Oct 1995 23:15:45 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070315.XAA04127@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <16847-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 04:08:52 +0100 Date: Sat, 7 Oct 1995 04:08:50 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 04:08:30 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id CAA03855; Sat, 7 Oct 1995 02:14:37 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id WAA03841; Fri, 6 Oct 1995 22:14:33 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070214.WAA03841@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <15451-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 03:08:06 +0100 Date: Sat, 7 Oct 1995 03:08:04 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 03:07:44 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id BAA03623; Sat, 7 Oct 1995 01:05:07 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id VAA03609; Fri, 6 Oct 1995 21:05:01 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070105.VAA03609@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <14006-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:57:55 +0100 Date: Sat, 7 Oct 1995 01:57:53 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:57:24 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id AAA03458; Sat, 7 Oct 1995 00:12:39 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id UAA03444; Fri, 6 Oct 1995 20:12:35 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070012.UAA03444@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <13100-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:06:02 +0100 Date: Sat, 7 Oct 1995 01:05:59 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:05:08 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA03295; Fri, 6 Oct 1995 23:16:55 GMT Received: from spot.Colorado.EDU by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id TAA03281; Fri, 6 Oct 1995 19:16:53 -0400 Received: (from ciciora@localhost) by spot.Colorado.EDU (8.6.12/8.6.12/CNS-3.6) id RAA01233; Fri, 6 Oct 1995 17:16:33 -0600 Date: Fri, 6 Oct 1995 17:16:32 -0600 (MDT) From: CICIORA STEVEN JOSEP To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Intel Hex to .S19 converter In-Reply-To: <51@turbo.win-uk.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu O.K., One of my eprom programmers will only save a binary file, the other will save binary, or intel hex (but it will read *.s19 records!). So I got an image of the prom from my Beretta, and the SIM68 program from the Motorolla BBS, but SIM68 only wants *.s19 records. Anyone got any suggestions on how to convert binary files, or preferably intel hex files to motorola *.s19 records? Thanks for your time! -Steven Ciciora From owner-diy_efi-archive Sat Oct 7 03:28:13 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04193; Sat, 7 Oct 1995 03:24:37 GMT Return-Path: Received: from spsgate.sps.mot.com by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04179; Fri, 6 Oct 1995 23:24:34 -0400 Received: from mogate (mogate.sps.mot.com) by spsgate.sps.mot.com (4.1/SMI-4.1/Email 2.1 10/25/93) id AA04728 for DIY_EFI@coulomb.eng.ohio-state.edu; Fri, 6 Oct 95 20:24:16 MST Received: from txbc.sps.mot.com ([192.88.171.200]) by mogate (4.1/SMI-4.1/Email-2.0) id AA00706; Fri, 6 Oct 95 20:24:15 MST Received: from roadster.sps.mot.com by txbc.sps.mot.com with SMTP (1.38.193.4/16.2) id AA05683; Fri, 6 Oct 95 22:24:14 -0500 Received: by roadster.autotest (4.1/SMI-4.1) id AA26349; Fri, 6 Oct 95 22:20:21 CDT Date: Fri, 6 Oct 95 22:20:21 CDT From: walter@roadster.sps.mot.com (thomas walter x5955) Message-Id: <9510070320.AA26349@roadster.autotest> To: DIY_EFI Subject: Re: Haltech throttle bodies and Re: Fuel injection questions Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Solution to the reversion problem dealt with the intake manifold. The revised manifold was slightly different. Seems the port - intake manifold - injector location was at some critical point at the desired rpm. Wave theory is just one of those things I would not think about, but came into play on that design (remember it was a race engine, with a radical cam... ). No, I did not have anything to do with the solution. Perhaps one of those "why didn't I think of that" was the elimination of the air pumps and the additions of reed relays to the air cleaner housing. First time I saw that (under the hood of a Datsun), it really took along time to figure out what they had done. Despite having built and played with two stroke motorcycles, it was not exactly clear WHY it worked. Once it dawned on me, it seemed almost too simple of a solution. ;-) --Tom From owner-diy_efi-archive Sat Oct 7 03:28:57 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04213; Sat, 7 Oct 1995 03:27:50 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04199; Fri, 6 Oct 1995 23:27:43 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070327.XAA04199@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <17227-1@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 04:20:41 +0100 Date: Sat, 7 Oct 1995 04:20:40 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 04:19:57 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id CAA03918; Sat, 7 Oct 1995 02:25:38 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id WAA03904; Fri, 6 Oct 1995 22:25:32 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070225.WAA03904@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <15729-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 03:18:41 +0100 Date: Sat, 7 Oct 1995 03:18:40 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 03:17:51 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id BAA03715; Sat, 7 Oct 1995 01:33:47 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id VAA03701; Fri, 6 Oct 1995 21:33:43 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070133.VAA03701@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <14506-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 02:24:10 +0100 Date: Sat, 7 Oct 1995 02:24:08 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 02:21:40 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id AAA03507; Sat, 7 Oct 1995 00:34:47 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id UAA03493; Fri, 6 Oct 1995 20:34:42 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070034.UAA03493@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <13482-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:28:05 +0100 Date: Sat, 7 Oct 1995 01:28:03 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:27:44 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA03341; Fri, 6 Oct 1995 23:33:19 GMT Received: from ix9.ix.netcom.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id TAA03327; Fri, 6 Oct 1995 19:33:13 -0400 Received: from by ix9.ix.netcom.com (8.6.12/SMI-4.1/Netcom) id QAA04391; Fri, 6 Oct 1995 16:32:49 -0700 Date: Fri, 6 Oct 1995 16:32:49 -0700 Message-Id: <199510062332.QAA04391@ix9.ix.netcom.com> From: arthurok@ix.netcom.com (ARTHUR OKUN ) Subject: Re: Building an MSD-CD To: DIY_EFI@coulomb.eng.ohio-state.edu Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu You wrote: > >Okay, I went down to the library and got everything I could on high voltage >stuff... > >First, let's look at a spark gap. Essentially, you've got an insulating gap >(of air in this case). The conductivity of this gap is essentially miniscule >under normal conditions. When you hit a particular voltage (which pretty much >has to be determined experimentally) or higher, then the electrons will go >into a type of "avalanche" mode where the conductivity of the gap goes way up >(alternatively, the resistance goes way down). We won't have electrons >accelerated fast enough to make a difference, so for our purposes, the time >it takes for the gap to go into breakdown/avalanche mode is about 10^-8 secs. >(about 10 nanoseconds). After this occurs, the air affected in the gap will >be in a plasma-like state. > >Second, all capacitive high voltage impulse type circuits work by feeding >the output of a high voltage power source to the capacitor and charging it up. >When the voltage reaches the breakdown voltage of the spark gap, the capacitor >rapidly dumps the charge it held. So this means we really need a high voltage >DC-DC convertor (boost convertor). These types of circuits are also known as >charge pumps. These things look like this: > > +----------+---Inductor-----+-----Diode >|-------------+--------Spark gap--+ > | | | | | > + | | | | >Battery Capacitor 1 Switch Capacitor 2 | > - | | | | > | | | | | > +----------+----------------+--------------------------+---------------- ---+ > >Okay, this is the basic circuit. I've deleted the usual control circuitry >since we're not going to have to worry about creating a DC voltage of X at >say +/-0.1 volts (this would be some sort of sensor or transformer on the >high voltage side). Capacitor 1 is just there to smooth out the battery >power. > >Okay, close the switch. The inductor starts charging up. Now open the switch. >The collapsing magnetic field in the inductor continues to conduct via >capacitor 2. Continue toggling the switch until the spark gap reaches >breakdown and drains the capacitor. This is pretty much identical to the >old flyback circuit in television sets. In practice, you'd use a high voltage >transistor (power FET or IGBT) in place of the switch and add some digital >controls to it for gating and such. > >If you are a mechanical engineer, the inductor and capacitor store energy. >Since the inductor is a coil of wire, it takes time for the flow in the >inductor to reach the peak. The diode is essentially a "one-way valve". The >Switch is a "2-way valve" and the battery is a pump. We build up a good flow >in the inductor, which acts like a piston; it builds up inertia (not sure what >the fluid term for this action is). Then open the switch (2-way valve). The >capacitor is more like a dam (holds whatever head we build up in it). So >the flow continues out of the inductor and builds up in the capacitor as long >as there is still inertia remaining in the inductor to drive the flow. >Successive cycles of the switch build up a higher and higher head in the >capacitor until the "dam" collapses (the spark gap fires), causing the charge >that built up in the capacitor to flow out. > >There is another variation on this circuit, as follows. > > +----------+---Switch-------+ +--Diode >|-------------+--------Spark gap--+ > | | | | | | > + | | | | | >Battery Capacitor 1 Transformer Capacitor 2 | > - | | | | | > | | | | | | > +----------+----------------+ +-----------------------+-------------------+ > >In this case, the switch-inductor circuit acts as before on the transformer >primary. When the field collapses, the transformer secondary feeds charge >into Capacitor 2. The difference is that the turns ratio of the transformer >gives you an additional voltage multiplication. Other advantages are isolation >and in DC-DC convertors, the transformer version can be smaller than the >inductor version (not sure if this applies for this application). > >There is another version called the buck-boost convertor. In this case, you >can get high negative voltages rather than positive voltages. > > +----------+---Switch-------+-----Diode |<-------------+--------Spark gap--+ > | | | | | > + | | | | >Battery Capacitor 1 Inductor Capacitor 2 | > - | | | | > | | | | | > +----------+----------------+--------------------------+---------------- ---+ > >Notice that the only real change is the diode is reversed. In this circuit, >the battery is out of the loop when the switch is open. The inductor conducts >as before but it reverses the flow in the capacitor-spark gap circuit. > >There are also voltage multiplier ladders made out of spark gaps and >capacitors and also voltage multiplier ladders made out of diodes and >capacitors, but they are generally not as efficient in their power usage as >the circuits above. > >When the above circuits are used as DC-DC convertors, Capacitor 2 is enormous >so that the voltage ripple is minimized. The spark gap becomes a normal load. >Even computer "switching power supplies" use similar convertors to the above >circuits. A pair of resistors is attached on the "high voltage" side or as >an additional small secondary on the transformer. This is used as the input >to the control circuit. The control circuit usually varies the duty cycle >(on-time to off-time of the switch) although some versions vary the frequency. >The resulting voltages are as follows: > >Boost convertor: Vout=Vin/(1-Duty Cycle) >Buck-Boost: Vout=-Vin*(Duty Cycle)/(1-Duty Cycle) >Transformer Coupled Boost Convertor: Vout=Vin*N*(Duty Cycle)/(1-Duty Cycle) > where N is the turns ratio > it shouldnt be that difficult to build a simple dc-dc converter(12v-~300vdc) and a coil switching circuit with cheap tv type components the trick is to put a capacitor accross the output transistor junction just like the condensor in an old fationed kettering type ignition circuit thats also done in tv h.v.supplies which i am familar with From owner-diy_efi-archive Sat Oct 7 03:51:31 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04329; Sat, 7 Oct 1995 03:46:54 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04315; Fri, 6 Oct 1995 23:46:47 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070346.XAA04315@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <17587-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 04:38:58 +0100 Date: Sat, 7 Oct 1995 04:38:56 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 04:38:34 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id AAA03536; Sat, 7 Oct 1995 00:44:08 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id UAA03522; Fri, 6 Oct 1995 20:44:04 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070044.UAA03522@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <13639-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:37:28 +0100 Date: Sat, 7 Oct 1995 01:37:26 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:37:13 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA03402; Fri, 6 Oct 1995 23:57:18 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id TAA03388; Fri, 6 Oct 1995 19:57:13 -0400 From: postmaster@hull.ac.uk Message-Id: <199510062357.TAA03388@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <12813-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 00:51:13 +0100 Date: Sat, 7 Oct 1995 00:51:10 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 00:50:47 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id WAA03235; Fri, 6 Oct 1995 22:52:04 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id SAA03220; Fri, 6 Oct 1995 18:52:00 -0400 From: postmaster@hull.ac.uk Message-Id: <199510062252.SAA03220@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <11498-0@mailhub1.hull.ac.uk>; Fri, 6 Oct 1995 23:45:39 +0100 Date: Fri, 6 Oct 1995 23:45:37 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Fri, 6 Oct 1995 23:44:19 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id VAA03090; Fri, 6 Oct 1995 21:28:53 GMT Received: from dub-img-2.compuserve.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id RAA03076; Fri, 6 Oct 1995 17:28:49 -0400 Received: by dub-img-2.compuserve.com (8.6.10/5.950515) id RAA09625; Fri, 6 Oct 1995 17:28:28 -0400 Date: 06 Oct 95 17:26:15 EDT From: "Roger S. Cohen" <72772.2212@COMPUSERVE.COM> To: DIY_EFI Subject: Research Message-ID: <951006212614_72772.2212_EHL253-1@CompuServe.COM> Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi DIYers, I spent the afternoon at the local library looking for info on the ALDL Serial data format to a SCAN tool ... with no luck! But did find two things of interest to the group: Mitchells On Demand - for free AND a citation for new literature in SAE's Automotive Engineering (V88, 6/80): "Zirconia Oxygen Sensor - An Equivalent Circuit Model" - Fleming, Research Labs, GM, Warren, MI. Unfortunately, the latest issue was 12/80 so I am still looking for the SCAN data. Any ideas? Roger Cohen 72772.2212@compuserve.com From owner-diy_efi-archive Sat Oct 7 04:00:55 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04391; Sat, 7 Oct 1995 03:58:57 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04377; Fri, 6 Oct 1995 23:58:52 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070358.XAA04377@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <17874-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 04:52:46 +0100 Date: Sat, 7 Oct 1995 04:52:44 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 04:52:25 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04141; Sat, 7 Oct 1995 03:15:50 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04127; Fri, 6 Oct 1995 23:15:45 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070315.XAA04127@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <16847-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 04:08:52 +0100 Date: Sat, 7 Oct 1995 04:08:50 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 04:08:30 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id CAA03855; Sat, 7 Oct 1995 02:14:37 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id WAA03841; Fri, 6 Oct 1995 22:14:33 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070214.WAA03841@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <15451-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 03:08:06 +0100 Date: Sat, 7 Oct 1995 03:08:04 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 03:07:44 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id BAA03623; Sat, 7 Oct 1995 01:05:07 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id VAA03609; Fri, 6 Oct 1995 21:05:01 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070105.VAA03609@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <14006-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:57:55 +0100 Date: Sat, 7 Oct 1995 01:57:53 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:57:24 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id AAA03458; Sat, 7 Oct 1995 00:12:39 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id UAA03444; Fri, 6 Oct 1995 20:12:35 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070012.UAA03444@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <13100-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:06:02 +0100 Date: Sat, 7 Oct 1995 01:05:59 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:05:08 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA03295; Fri, 6 Oct 1995 23:16:55 GMT Received: from spot.Colorado.EDU by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id TAA03281; Fri, 6 Oct 1995 19:16:53 -0400 Received: (from ciciora@localhost) by spot.Colorado.EDU (8.6.12/8.6.12/CNS-3.6) id RAA01233; Fri, 6 Oct 1995 17:16:33 -0600 Date: Fri, 6 Oct 1995 17:16:32 -0600 (MDT) From: CICIORA STEVEN JOSEP To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Intel Hex to .S19 converter In-Reply-To: <51@turbo.win-uk.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu O.K., One of my eprom programmers will only save a binary file, the other will save binary, or intel hex (but it will read *.s19 records!). So I got an image of the prom from my Beretta, and the SIM68 program from the Motorolla BBS, but SIM68 only wants *.s19 records. Anyone got any suggestions on how to convert binary files, or preferably intel hex files to motorola *.s19 records? Thanks for your time! -Steven Ciciora From owner-diy_efi-archive Sat Oct 7 04:09:09 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id EAA04424; Sat, 7 Oct 1995 04:07:47 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id AAA04410; Sat, 7 Oct 1995 00:07:42 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070407.AAA04410@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <18070-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 05:01:35 +0100 Date: Sat, 7 Oct 1995 05:01:29 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 05:00:42 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04099; Sat, 7 Oct 1995 03:08:48 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04085; Fri, 6 Oct 1995 23:08:42 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070308.XAA04085@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <16617-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 03:59:58 +0100 Date: Sat, 7 Oct 1995 03:59:57 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 03:59:43 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id CAA03888; Sat, 7 Oct 1995 02:18:14 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id WAA03873; Fri, 6 Oct 1995 22:18:11 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070218.WAA03873@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <15588-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 03:12:05 +0100 Date: Sat, 7 Oct 1995 03:12:00 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 03:11:01 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id BAA03652; Sat, 7 Oct 1995 01:12:12 GMT Received: from dione.gi.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id VAA03638; Fri, 6 Oct 1995 21:12:09 -0400 Received: from gismtpgate.gi.com (po1.gi.com) by VCA.GI.COM (PMDF V5.0-5 #7516) id <01HW4NVXG6AOK6PEA6@VCA.GI.COM> for DIY_EFI@coulomb.eng.ohio-state.edu; Fri, 06 Oct 1995 18:11:42 -0700 (PDT) Received: by gismtpgate.gi.com with Microsoft Mail id <3075D3B6@gismtpgate.gi.com>; Fri, 06 Oct 1995 18:11:18 -0700 (PDT) Date: Fri, 06 Oct 1995 18:11:00 -0700 (PDT) From: "Zublin, Bryan (SD-MS)" Subject: Haltech throttle bodies and Re: Fuel injection questions To: "diy_efi (postings)" Message-id: <3075D3B6@gismtpgate.gi.com> X-Mailer: Microsoft Mail V3.0 Content-transfer-encoding: 7BIT Encoding: 26 TEXT Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Tom "How could the motor be too lean?" Walter writes: >REVERSIONS: While we all realize the the closing of the intake valve >will cause a "back pulse" of air through the intake track, I was not >really aware of how critical it could be. An engine builder could not >get enough fuel into an injected engine... at WOT the engine was running >LEAN, despite "having more than enough fuel to flood it". Hmm, problem >was a unique reversion pattern. Rather than the usual area around the >intake walls, there was ALSO an effected area in the middle. Dead center >of the intake area of the FUEL injector jet!!! The reversion pulse of this >radically cammed motor was enough to blow fuel back out the short intake >track! [Haltech throttle bodies... look like Weber DCOE's with an injector >port]. Result was interesting . So when done with all the calculations, >and theories, it is great fun to get it all blown back in your face! ;-) Tom, What was the solution to this problem? Different cam timing? Moved injector? Has anyone else on this list used the Haltech throttle bodies? I have considered using them in place of the Weber DCOE carbs on my 1980 Toyota Celica. Bryan Zublin bzublin@gi.com From owner-diy_efi-archive Sat Oct 7 04:10:02 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id EAA04446; Sat, 7 Oct 1995 04:08:50 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id AAA04432; Sat, 7 Oct 1995 00:08:45 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070408.AAA04432@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <18103-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 05:01:50 +0100 Date: Sat, 7 Oct 1995 05:01:44 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 05:01:11 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04193; Sat, 7 Oct 1995 03:24:37 GMT Received: from spsgate.sps.mot.com by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04179; Fri, 6 Oct 1995 23:24:34 -0400 Received: from mogate (mogate.sps.mot.com) by spsgate.sps.mot.com (4.1/SMI-4.1/Email 2.1 10/25/93) id AA04728 for DIY_EFI@coulomb.eng.ohio-state.edu; Fri, 6 Oct 95 20:24:16 MST Received: from txbc.sps.mot.com ([192.88.171.200]) by mogate (4.1/SMI-4.1/Email-2.0) id AA00706; Fri, 6 Oct 95 20:24:15 MST Received: from roadster.sps.mot.com by txbc.sps.mot.com with SMTP (1.38.193.4/16.2) id AA05683; Fri, 6 Oct 95 22:24:14 -0500 Received: by roadster.autotest (4.1/SMI-4.1) id AA26349; Fri, 6 Oct 95 22:20:21 CDT Date: Fri, 6 Oct 95 22:20:21 CDT From: walter@roadster.sps.mot.com (thomas walter x5955) Message-Id: <9510070320.AA26349@roadster.autotest> To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Re: Haltech throttle bodies and Re: Fuel injection questions Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Solution to the reversion problem dealt with the intake manifold. The revised manifold was slightly different. Seems the port - intake manifold - injector location was at some critical point at the desired rpm. Wave theory is just one of those things I would not think about, but came into play on that design (remember it was a race engine, with a radical cam... ). No, I did not have anything to do with the solution. Perhaps one of those "why didn't I think of that" was the elimination of the air pumps and the additions of reed relays to the air cleaner housing. First time I saw that (under the hood of a Datsun), it really took along time to figure out what they had done. Despite having built and played with two stroke motorcycles, it was not exactly clear WHY it worked. Once it dawned on me, it seemed almost too simple of a solution. ;-) --Tom From owner-diy_efi-archive Sat Oct 7 04:14:10 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id EAA04480; Sat, 7 Oct 1995 04:12:10 GMT Return-Path: Received: from gater3.sematech.org by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id AAA04466; Sat, 7 Oct 1995 00:12:08 -0400 Received: from GATEV4.SEMATECH.ORG by gater3.sematech.org (8.6.12/F-1.9) with ESMTP id XAA15212; Fri, 6 Oct 1995 23:11:49 -0500 Received: from MR.SEMATECH.Org by SEMATECH.Org (PMDF V4.3-13 #5463) id <01HW4YDTMMXC8Y5W74@SEMATECH.Org>; Fri, 06 Oct 1995 23:11:42 -0500 (CDT) Received: with PMDF-MR; Fri, 6 Oct 1995 23:09:51 -0500 (CDT) MR-Received: by mta MAILV2; Relayed; Fri, 06 Oct 1995 23:09:51 -0500 (CDT) MR-Received: by mta GATEV1; Relayed; Fri, 06 Oct 1995 23:09:56 -0500 (CDT) Alternate-recipient: prohibited Disclose-recipients: prohibited Date: Fri, 06 Oct 1995 23:01:00 -0500 (CDT) From: Steve Knickerbocker 512-356-3000 X6759 Subject: bouncy messages To: diy_efi Message-id: <01HW4YDVDO3Q8Y5W74@MR.SEMATECH.Org> MIME-version: 1.0 Content-type: TEXT/PLAIN; CHARSET=US-ASCII Content-transfer-encoding: 7BIT Posting-date: Fri, 06 Oct 1995 23:03:00 -0500 (CDT) Importance: normal Priority: normal X400-MTS-identifier: [;15903260015991/1759689@VAXEN] A1-type: MAIL Hop-count: 2 Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Am I the only one to keep getiing a bounce message over and over and over again? It isn't even a post I sent. Can someone look in to this? Thanks, Thunderstruck... From owner-diy_efi-archive Sat Oct 7 04:28:51 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id EAA04581; Sat, 7 Oct 1995 04:26:04 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id AAA04567; Sat, 7 Oct 1995 00:25:59 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070425.AAA04567@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <18456-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 05:19:49 +0100 Date: Sat, 7 Oct 1995 05:19:40 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 05:18:59 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04213; Sat, 7 Oct 1995 03:27:50 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04199; Fri, 6 Oct 1995 23:27:43 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070327.XAA04199@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <17227-1@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 04:20:41 +0100 Date: Sat, 7 Oct 1995 04:20:40 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 04:19:57 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id CAA03918; Sat, 7 Oct 1995 02:25:38 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id WAA03904; Fri, 6 Oct 1995 22:25:32 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070225.WAA03904@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <15729-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 03:18:41 +0100 Date: Sat, 7 Oct 1995 03:18:40 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 03:17:51 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id BAA03715; Sat, 7 Oct 1995 01:33:47 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id VAA03701; Fri, 6 Oct 1995 21:33:43 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070133.VAA03701@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <14506-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 02:24:10 +0100 Date: Sat, 7 Oct 1995 02:24:08 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 02:21:40 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id AAA03507; Sat, 7 Oct 1995 00:34:47 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id UAA03493; Fri, 6 Oct 1995 20:34:42 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070034.UAA03493@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <13482-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:28:05 +0100 Date: Sat, 7 Oct 1995 01:28:03 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:27:44 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA03341; Fri, 6 Oct 1995 23:33:19 GMT Received: from ix9.ix.netcom.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id TAA03327; Fri, 6 Oct 1995 19:33:13 -0400 Received: from by ix9.ix.netcom.com (8.6.12/SMI-4.1/Netcom) id QAA04391; Fri, 6 Oct 1995 16:32:49 -0700 Date: Fri, 6 Oct 1995 16:32:49 -0700 Message-Id: <199510062332.QAA04391@ix9.ix.netcom.com> From: arthurok@ix.netcom.com (ARTHUR OKUN ) Subject: Re: Building an MSD-CD To: DIY_EFI@coulomb.eng.ohio-state.edu Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu You wrote: > >Okay, I went down to the library and got everything I could on high voltage >stuff... > >First, let's look at a spark gap. Essentially, you've got an insulating gap >(of air in this case). The conductivity of this gap is essentially miniscule >under normal conditions. When you hit a particular voltage (which pretty much >has to be determined experimentally) or higher, then the electrons will go >into a type of "avalanche" mode where the conductivity of the gap goes way up >(alternatively, the resistance goes way down). We won't have electrons >accelerated fast enough to make a difference, so for our purposes, the time >it takes for the gap to go into breakdown/avalanche mode is about 10^-8 secs. >(about 10 nanoseconds). After this occurs, the air affected in the gap will >be in a plasma-like state. > >Second, all capacitive high voltage impulse type circuits work by feeding >the output of a high voltage power source to the capacitor and charging it up. >When the voltage reaches the breakdown voltage of the spark gap, the capacitor >rapidly dumps the charge it held. So this means we really need a high voltage >DC-DC convertor (boost convertor). These types of circuits are also known as >charge pumps. These things look like this: > > +----------+---Inductor-----+-----Diode >|-------------+--------Spark gap--+ > | | | | | > + | | | | >Battery Capacitor 1 Switch Capacitor 2 | > - | | | | > | | | | | > +----------+----------------+--------------------------+---------------- ---+ > >Okay, this is the basic circuit. I've deleted the usual control circuitry >since we're not going to have to worry about creating a DC voltage of X at >say +/-0.1 volts (this would be some sort of sensor or transformer on the >high voltage side). Capacitor 1 is just there to smooth out the battery >power. > >Okay, close the switch. The inductor starts charging up. Now open the switch. >The collapsing magnetic field in the inductor continues to conduct via >capacitor 2. Continue toggling the switch until the spark gap reaches >breakdown and drains the capacitor. This is pretty much identical to the >old flyback circuit in television sets. In practice, you'd use a high voltage >transistor (power FET or IGBT) in place of the switch and add some digital >controls to it for gating and such. > >If you are a mechanical engineer, the inductor and capacitor store energy. >Since the inductor is a coil of wire, it takes time for the flow in the >inductor to reach the peak. The diode is essentially a "one-way valve". The >Switch is a "2-way valve" and the battery is a pump. We build up a good flow >in the inductor, which acts like a piston; it builds up inertia (not sure what >the fluid term for this action is). Then open the switch (2-way valve). The >capacitor is more like a dam (holds whatever head we build up in it). So >the flow continues out of the inductor and builds up in the capacitor as long >as there is still inertia remaining in the inductor to drive the flow. >Successive cycles of the switch build up a higher and higher head in the >capacitor until the "dam" collapses (the spark gap fires), causing the charge >that built up in the capacitor to flow out. > >There is another variation on this circuit, as follows. > > +----------+---Switch-------+ +--Diode >|-------------+--------Spark gap--+ > | | | | | | > + | | | | | >Battery Capacitor 1 Transformer Capacitor 2 | > - | | | | | > | | | | | | > +----------+----------------+ +-----------------------+-------------------+ > >In this case, the switch-inductor circuit acts as before on the transformer >primary. When the field collapses, the transformer secondary feeds charge >into Capacitor 2. The difference is that the turns ratio of the transformer >gives you an additional voltage multiplication. Other advantages are isolation >and in DC-DC convertors, the transformer version can be smaller than the >inductor version (not sure if this applies for this application). > >There is another version called the buck-boost convertor. In this case, you >can get high negative voltages rather than positive voltages. > > +----------+---Switch-------+-----Diode |<-------------+--------Spark gap--+ > | | | | | > + | | | | >Battery Capacitor 1 Inductor Capacitor 2 | > - | | | | > | | | | | > +----------+----------------+--------------------------+---------------- ---+ > >Notice that the only real change is the diode is reversed. In this circuit, >the battery is out of the loop when the switch is open. The inductor conducts >as before but it reverses the flow in the capacitor-spark gap circuit. > >There are also voltage multiplier ladders made out of spark gaps and >capacitors and also voltage multiplier ladders made out of diodes and >capacitors, but they are generally not as efficient in their power usage as >the circuits above. > >When the above circuits are used as DC-DC convertors, Capacitor 2 is enormous >so that the voltage ripple is minimized. The spark gap becomes a normal load. >Even computer "switching power supplies" use similar convertors to the above >circuits. A pair of resistors is attached on the "high voltage" side or as >an additional small secondary on the transformer. This is used as the input >to the control circuit. The control circuit usually varies the duty cycle >(on-time to off-time of the switch) although some versions vary the frequency. >The resulting voltages are as follows: > >Boost convertor: Vout=Vin/(1-Duty Cycle) >Buck-Boost: Vout=-Vin*(Duty Cycle)/(1-Duty Cycle) >Transformer Coupled Boost Convertor: Vout=Vin*N*(Duty Cycle)/(1-Duty Cycle) > where N is the turns ratio > it shouldnt be that difficult to build a simple dc-dc converter(12v-~300vdc) and a coil switching circuit with cheap tv type components the trick is to put a capacitor accross the output transistor junction just like the condensor in an old fationed kettering type ignition circuit thats also done in tv h.v.supplies which i am familar with From owner-diy_efi-archive Sat Oct 7 04:56:30 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id EAA04717; Sat, 7 Oct 1995 04:53:51 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id AAA04703; Sat, 7 Oct 1995 00:53:47 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070453.AAA04703@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <18806-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 05:46:45 +0100 Date: Sat, 7 Oct 1995 05:46:43 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 05:46:31 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04329; Sat, 7 Oct 1995 03:46:54 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04315; Fri, 6 Oct 1995 23:46:47 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070346.XAA04315@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <17587-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 04:38:58 +0100 Date: Sat, 7 Oct 1995 04:38:56 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 04:38:34 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id AAA03536; Sat, 7 Oct 1995 00:44:08 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id UAA03522; Fri, 6 Oct 1995 20:44:04 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070044.UAA03522@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <13639-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:37:28 +0100 Date: Sat, 7 Oct 1995 01:37:26 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:37:13 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA03402; Fri, 6 Oct 1995 23:57:18 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id TAA03388; Fri, 6 Oct 1995 19:57:13 -0400 From: postmaster@hull.ac.uk Message-Id: <199510062357.TAA03388@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <12813-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 00:51:13 +0100 Date: Sat, 7 Oct 1995 00:51:10 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 00:50:47 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id WAA03235; Fri, 6 Oct 1995 22:52:04 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id SAA03220; Fri, 6 Oct 1995 18:52:00 -0400 From: postmaster@hull.ac.uk Message-Id: <199510062252.SAA03220@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <11498-0@mailhub1.hull.ac.uk>; Fri, 6 Oct 1995 23:45:39 +0100 Date: Fri, 6 Oct 1995 23:45:37 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Fri, 6 Oct 1995 23:44:19 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id VAA03090; Fri, 6 Oct 1995 21:28:53 GMT Received: from dub-img-2.compuserve.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id RAA03076; Fri, 6 Oct 1995 17:28:49 -0400 Received: by dub-img-2.compuserve.com (8.6.10/5.950515) id RAA09625; Fri, 6 Oct 1995 17:28:28 -0400 Date: 06 Oct 95 17:26:15 EDT From: "Roger S. Cohen" <72772.2212@COMPUSERVE.COM> To: DIY_EFI Subject: Research Message-ID: <951006212614_72772.2212_EHL253-1@CompuServe.COM> Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi DIYers, I spent the afternoon at the local library looking for info on the ALDL Serial data format to a SCAN tool ... with no luck! But did find two things of interest to the group: Mitchells On Demand - for free AND a citation for new literature in SAE's Automotive Engineering (V88, 6/80): "Zirconia Oxygen Sensor - An Equivalent Circuit Model" - Fleming, Research Labs, GM, Warren, MI. Unfortunately, the latest issue was 12/80 so I am still looking for the SCAN data. Any ideas? Roger Cohen 72772.2212@compuserve.com From owner-diy_efi-archive Sat Oct 7 05:08:25 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id FAA04765; Sat, 7 Oct 1995 05:04:37 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id BAA04751; Sat, 7 Oct 1995 01:04:28 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070504.BAA04751@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <18940-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 05:58:24 +0100 Date: Sat, 7 Oct 1995 05:58:21 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 05:57:55 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id EAA04424; Sat, 7 Oct 1995 04:07:47 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id AAA04410; Sat, 7 Oct 1995 00:07:42 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070407.AAA04410@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <18070-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 05:01:35 +0100 Date: Sat, 7 Oct 1995 05:01:29 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 05:00:42 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04099; Sat, 7 Oct 1995 03:08:48 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04085; Fri, 6 Oct 1995 23:08:42 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070308.XAA04085@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <16617-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 03:59:58 +0100 Date: Sat, 7 Oct 1995 03:59:57 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 03:59:43 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id CAA03888; Sat, 7 Oct 1995 02:18:14 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id WAA03873; Fri, 6 Oct 1995 22:18:11 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070218.WAA03873@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <15588-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 03:12:05 +0100 Date: Sat, 7 Oct 1995 03:12:00 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 03:11:01 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id BAA03652; Sat, 7 Oct 1995 01:12:12 GMT Received: from dione.gi.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id VAA03638; Fri, 6 Oct 1995 21:12:09 -0400 Received: from gismtpgate.gi.com (po1.gi.com) by VCA.GI.COM (PMDF V5.0-5 #7516) id <01HW4NVXG6AOK6PEA6@VCA.GI.COM> for DIY_EFI@coulomb.eng.ohio-state.edu; Fri, 06 Oct 1995 18:11:42 -0700 (PDT) Received: by gismtpgate.gi.com with Microsoft Mail id <3075D3B6@gismtpgate.gi.com>; Fri, 06 Oct 1995 18:11:18 -0700 (PDT) Date: Fri, 06 Oct 1995 18:11:00 -0700 (PDT) From: "Zublin, Bryan (SD-MS)" Subject: Haltech throttle bodies and Re: Fuel injection questions To: "diy_efi (postings)" Message-id: <3075D3B6@gismtpgate.gi.com> X-Mailer: Microsoft Mail V3.0 Content-transfer-encoding: 7BIT Encoding: 26 TEXT Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Tom "How could the motor be too lean?" Walter writes: >REVERSIONS: While we all realize the the closing of the intake valve >will cause a "back pulse" of air through the intake track, I was not >really aware of how critical it could be. An engine builder could not >get enough fuel into an injected engine... at WOT the engine was running >LEAN, despite "having more than enough fuel to flood it". Hmm, problem >was a unique reversion pattern. Rather than the usual area around the >intake walls, there was ALSO an effected area in the middle. Dead center >of the intake area of the FUEL injector jet!!! The reversion pulse of this >radically cammed motor was enough to blow fuel back out the short intake >track! [Haltech throttle bodies... look like Weber DCOE's with an injector >port]. Result was interesting . So when done with all the calculations, >and theories, it is great fun to get it all blown back in your face! ;-) Tom, What was the solution to this problem? Different cam timing? Moved injector? Has anyone else on this list used the Haltech throttle bodies? I have considered using them in place of the Weber DCOE carbs on my 1980 Toyota Celica. Bryan Zublin bzublin@gi.com From owner-diy_efi-archive Sat Oct 7 05:11:28 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id FAA04805; Sat, 7 Oct 1995 05:10:20 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id BAA04791; Sat, 7 Oct 1995 01:10:13 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070510.BAA04791@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <19024-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 06:01:11 +0100 Date: Sat, 7 Oct 1995 06:01:10 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 05:59:03 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04391; Sat, 7 Oct 1995 03:58:57 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04377; Fri, 6 Oct 1995 23:58:52 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070358.XAA04377@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <17874-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 04:52:46 +0100 Date: Sat, 7 Oct 1995 04:52:44 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 04:52:25 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04141; Sat, 7 Oct 1995 03:15:50 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04127; Fri, 6 Oct 1995 23:15:45 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070315.XAA04127@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <16847-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 04:08:52 +0100 Date: Sat, 7 Oct 1995 04:08:50 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 04:08:30 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id CAA03855; Sat, 7 Oct 1995 02:14:37 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id WAA03841; Fri, 6 Oct 1995 22:14:33 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070214.WAA03841@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <15451-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 03:08:06 +0100 Date: Sat, 7 Oct 1995 03:08:04 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 03:07:44 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id BAA03623; Sat, 7 Oct 1995 01:05:07 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id VAA03609; Fri, 6 Oct 1995 21:05:01 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070105.VAA03609@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <14006-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:57:55 +0100 Date: Sat, 7 Oct 1995 01:57:53 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:57:24 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id AAA03458; Sat, 7 Oct 1995 00:12:39 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id UAA03444; Fri, 6 Oct 1995 20:12:35 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070012.UAA03444@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <13100-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:06:02 +0100 Date: Sat, 7 Oct 1995 01:05:59 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:05:08 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA03295; Fri, 6 Oct 1995 23:16:55 GMT Received: from spot.Colorado.EDU by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id TAA03281; Fri, 6 Oct 1995 19:16:53 -0400 Received: (from ciciora@localhost) by spot.Colorado.EDU (8.6.12/8.6.12/CNS-3.6) id RAA01233; Fri, 6 Oct 1995 17:16:33 -0600 Date: Fri, 6 Oct 1995 17:16:32 -0600 (MDT) From: CICIORA STEVEN JOSEP To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Intel Hex to .S19 converter In-Reply-To: <51@turbo.win-uk.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu O.K., One of my eprom programmers will only save a binary file, the other will save binary, or intel hex (but it will read *.s19 records!). So I got an image of the prom from my Beretta, and the SIM68 program from the Motorolla BBS, but SIM68 only wants *.s19 records. Anyone got any suggestions on how to convert binary files, or preferably intel hex files to motorola *.s19 records? Thanks for your time! -Steven Ciciora From owner-diy_efi-archive Sat Oct 7 05:12:11 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id FAA04821; Sat, 7 Oct 1995 05:11:03 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id BAA04807; Sat, 7 Oct 1995 01:10:59 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070510.BAA04807@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <19071-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 06:04:34 +0100 Date: Sat, 7 Oct 1995 06:04:32 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 06:04:18 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id EAA04480; Sat, 7 Oct 1995 04:12:10 GMT Received: from gater3.sematech.org by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id AAA04466; Sat, 7 Oct 1995 00:12:08 -0400 Received: from GATEV4.SEMATECH.ORG by gater3.sematech.org (8.6.12/F-1.9) with ESMTP id XAA15212; Fri, 6 Oct 1995 23:11:49 -0500 Received: from MR.SEMATECH.Org by SEMATECH.Org (PMDF V4.3-13 #5463) id <01HW4YDTMMXC8Y5W74@SEMATECH.Org>; Fri, 06 Oct 1995 23:11:42 -0500 (CDT) Received: with PMDF-MR; Fri, 6 Oct 1995 23:09:51 -0500 (CDT) MR-Received: by mta MAILV2; Relayed; Fri, 06 Oct 1995 23:09:51 -0500 (CDT) MR-Received: by mta GATEV1; Relayed; Fri, 06 Oct 1995 23:09:56 -0500 (CDT) Alternate-recipient: prohibited Disclose-recipients: prohibited Date: Fri, 06 Oct 1995 23:01:00 -0500 (CDT) From: Steve Knickerbocker 512-356-3000 X6759 Subject: bouncy messages To: diy_efi@coulomb.eng.ohio-state.edu Message-id: <01HW4YDVDO3Q8Y5W74@MR.SEMATECH.Org> MIME-version: 1.0 Content-type: TEXT/PLAIN; CHARSET=US-ASCII Content-transfer-encoding: 7BIT Posting-date: Fri, 06 Oct 1995 23:03:00 -0500 (CDT) Importance: normal Priority: normal X400-MTS-identifier: [;15903260015991/1759689@VAXEN] A1-type: MAIL Hop-count: 2 Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Am I the only one to keep getiing a bounce message over and over and over again? It isn't even a post I sent. Can someone look in to this? Thanks, Thunderstruck... From owner-diy_efi-archive Sat Oct 7 05:18:39 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id FAA04868; Sat, 7 Oct 1995 05:16:53 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id BAA04854; Sat, 7 Oct 1995 01:16:47 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070516.BAA04854@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <19133-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 06:08:07 +0100 Date: Sat, 7 Oct 1995 06:08:05 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 06:07:51 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id EAA04446; Sat, 7 Oct 1995 04:08:50 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id AAA04432; Sat, 7 Oct 1995 00:08:45 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070408.AAA04432@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <18103-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 05:01:50 +0100 Date: Sat, 7 Oct 1995 05:01:44 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 05:01:11 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04193; Sat, 7 Oct 1995 03:24:37 GMT Received: from spsgate.sps.mot.com by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04179; Fri, 6 Oct 1995 23:24:34 -0400 Received: from mogate (mogate.sps.mot.com) by spsgate.sps.mot.com (4.1/SMI-4.1/Email 2.1 10/25/93) id AA04728 for DIY_EFI@coulomb.eng.ohio-state.edu; Fri, 6 Oct 95 20:24:16 MST Received: from txbc.sps.mot.com ([192.88.171.200]) by mogate (4.1/SMI-4.1/Email-2.0) id AA00706; Fri, 6 Oct 95 20:24:15 MST Received: from roadster.sps.mot.com by txbc.sps.mot.com with SMTP (1.38.193.4/16.2) id AA05683; Fri, 6 Oct 95 22:24:14 -0500 Received: by roadster.autotest (4.1/SMI-4.1) id AA26349; Fri, 6 Oct 95 22:20:21 CDT Date: Fri, 6 Oct 95 22:20:21 CDT From: walter@roadster.sps.mot.com (thomas walter x5955) Message-Id: <9510070320.AA26349@roadster.autotest> To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Re: Haltech throttle bodies and Re: Fuel injection questions Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Solution to the reversion problem dealt with the intake manifold. The revised manifold was slightly different. Seems the port - intake manifold - injector location was at some critical point at the desired rpm. Wave theory is just one of those things I would not think about, but came into play on that design (remember it was a race engine, with a radical cam... ). No, I did not have anything to do with the solution. Perhaps one of those "why didn't I think of that" was the elimination of the air pumps and the additions of reed relays to the air cleaner housing. First time I saw that (under the hood of a Datsun), it really took along time to figure out what they had done. Despite having built and played with two stroke motorcycles, it was not exactly clear WHY it worked. Once it dawned on me, it seemed almost too simple of a solution. ;-) --Tom From owner-diy_efi-archive Sat Oct 7 05:38:22 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id FAA04969; Sat, 7 Oct 1995 05:35:40 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id BAA04955; Sat, 7 Oct 1995 01:35:34 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070535.BAA04955@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <19722-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 06:29:23 +0100 Date: Sat, 7 Oct 1995 06:29:10 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 06:28:18 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id EAA04581; Sat, 7 Oct 1995 04:26:04 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id AAA04567; Sat, 7 Oct 1995 00:25:59 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070425.AAA04567@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <18456-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 05:19:49 +0100 Date: Sat, 7 Oct 1995 05:19:40 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 05:18:59 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04213; Sat, 7 Oct 1995 03:27:50 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04199; Fri, 6 Oct 1995 23:27:43 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070327.XAA04199@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <17227-1@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 04:20:41 +0100 Date: Sat, 7 Oct 1995 04:20:40 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 04:19:57 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id CAA03918; Sat, 7 Oct 1995 02:25:38 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id WAA03904; Fri, 6 Oct 1995 22:25:32 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070225.WAA03904@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <15729-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 03:18:41 +0100 Date: Sat, 7 Oct 1995 03:18:40 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 03:17:51 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id BAA03715; Sat, 7 Oct 1995 01:33:47 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id VAA03701; Fri, 6 Oct 1995 21:33:43 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070133.VAA03701@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <14506-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 02:24:10 +0100 Date: Sat, 7 Oct 1995 02:24:08 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 02:21:40 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id AAA03507; Sat, 7 Oct 1995 00:34:47 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id UAA03493; Fri, 6 Oct 1995 20:34:42 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070034.UAA03493@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <13482-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:28:05 +0100 Date: Sat, 7 Oct 1995 01:28:03 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:27:44 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA03341; Fri, 6 Oct 1995 23:33:19 GMT Received: from ix9.ix.netcom.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id TAA03327; Fri, 6 Oct 1995 19:33:13 -0400 Received: from by ix9.ix.netcom.com (8.6.12/SMI-4.1/Netcom) id QAA04391; Fri, 6 Oct 1995 16:32:49 -0700 Date: Fri, 6 Oct 1995 16:32:49 -0700 Message-Id: <199510062332.QAA04391@ix9.ix.netcom.com> From: arthurok@ix.netcom.com (ARTHUR OKUN ) Subject: Re: Building an MSD-CD To: DIY_EFI@coulomb.eng.ohio-state.edu Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu You wrote: > >Okay, I went down to the library and got everything I could on high voltage >stuff... > >First, let's look at a spark gap. Essentially, you've got an insulating gap >(of air in this case). The conductivity of this gap is essentially miniscule >under normal conditions. When you hit a particular voltage (which pretty much >has to be determined experimentally) or higher, then the electrons will go >into a type of "avalanche" mode where the conductivity of the gap goes way up >(alternatively, the resistance goes way down). We won't have electrons >accelerated fast enough to make a difference, so for our purposes, the time >it takes for the gap to go into breakdown/avalanche mode is about 10^-8 secs. >(about 10 nanoseconds). After this occurs, the air affected in the gap will >be in a plasma-like state. > >Second, all capacitive high voltage impulse type circuits work by feeding >the output of a high voltage power source to the capacitor and charging it up. >When the voltage reaches the breakdown voltage of the spark gap, the capacitor >rapidly dumps the charge it held. So this means we really need a high voltage >DC-DC convertor (boost convertor). These types of circuits are also known as >charge pumps. These things look like this: > > +----------+---Inductor-----+-----Diode >|-------------+--------Spark gap--+ > | | | | | > + | | | | >Battery Capacitor 1 Switch Capacitor 2 | > - | | | | > | | | | | > +----------+----------------+--------------------------+---------------- ---+ > >Okay, this is the basic circuit. I've deleted the usual control circuitry >since we're not going to have to worry about creating a DC voltage of X at >say +/-0.1 volts (this would be some sort of sensor or transformer on the >high voltage side). Capacitor 1 is just there to smooth out the battery >power. > >Okay, close the switch. The inductor starts charging up. Now open the switch. >The collapsing magnetic field in the inductor continues to conduct via >capacitor 2. Continue toggling the switch until the spark gap reaches >breakdown and drains the capacitor. This is pretty much identical to the >old flyback circuit in television sets. In practice, you'd use a high voltage >transistor (power FET or IGBT) in place of the switch and add some digital >controls to it for gating and such. > >If you are a mechanical engineer, the inductor and capacitor store energy. >Since the inductor is a coil of wire, it takes time for the flow in the >inductor to reach the peak. The diode is essentially a "one-way valve". The >Switch is a "2-way valve" and the battery is a pump. We build up a good flow >in the inductor, which acts like a piston; it builds up inertia (not sure what >the fluid term for this action is). Then open the switch (2-way valve). The >capacitor is more like a dam (holds whatever head we build up in it). So >the flow continues out of the inductor and builds up in the capacitor as long >as there is still inertia remaining in the inductor to drive the flow. >Successive cycles of the switch build up a higher and higher head in the >capacitor until the "dam" collapses (the spark gap fires), causing the charge >that built up in the capacitor to flow out. > >There is another variation on this circuit, as follows. > > +----------+---Switch-------+ +--Diode >|-------------+--------Spark gap--+ > | | | | | | > + | | | | | >Battery Capacitor 1 Transformer Capacitor 2 | > - | | | | | > | | | | | | > +----------+----------------+ +-----------------------+-------------------+ > >In this case, the switch-inductor circuit acts as before on the transformer >primary. When the field collapses, the transformer secondary feeds charge >into Capacitor 2. The difference is that the turns ratio of the transformer >gives you an additional voltage multiplication. Other advantages are isolation >and in DC-DC convertors, the transformer version can be smaller than the >inductor version (not sure if this applies for this application). > >There is another version called the buck-boost convertor. In this case, you >can get high negative voltages rather than positive voltages. > > +----------+---Switch-------+-----Diode |<-------------+--------Spark gap--+ > | | | | | > + | | | | >Battery Capacitor 1 Inductor Capacitor 2 | > - | | | | > | | | | | > +----------+----------------+--------------------------+---------------- ---+ > >Notice that the only real change is the diode is reversed. In this circuit, >the battery is out of the loop when the switch is open. The inductor conducts >as before but it reverses the flow in the capacitor-spark gap circuit. > >There are also voltage multiplier ladders made out of spark gaps and >capacitors and also voltage multiplier ladders made out of diodes and >capacitors, but they are generally not as efficient in their power usage as >the circuits above. > >When the above circuits are used as DC-DC convertors, Capacitor 2 is enormous >so that the voltage ripple is minimized. The spark gap becomes a normal load. >Even computer "switching power supplies" use similar convertors to the above >circuits. A pair of resistors is attached on the "high voltage" side or as >an additional small secondary on the transformer. This is used as the input >to the control circuit. The control circuit usually varies the duty cycle >(on-time to off-time of the switch) although some versions vary the frequency. >The resulting voltages are as follows: > >Boost convertor: Vout=Vin/(1-Duty Cycle) >Buck-Boost: Vout=-Vin*(Duty Cycle)/(1-Duty Cycle) >Transformer Coupled Boost Convertor: Vout=Vin*N*(Duty Cycle)/(1-Duty Cycle) > where N is the turns ratio > it shouldnt be that difficult to build a simple dc-dc converter(12v-~300vdc) and a coil switching circuit with cheap tv type components the trick is to put a capacitor accross the output transistor junction just like the condensor in an old fationed kettering type ignition circuit thats also done in tv h.v.supplies which i am familar with From owner-diy_efi-archive Sat Oct 7 05:56:43 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id FAA05070; Sat, 7 Oct 1995 05:53:21 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id BAA05056; Sat, 7 Oct 1995 01:53:16 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070553.BAA05056@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <20214-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 06:46:37 +0100 Date: Sat, 7 Oct 1995 06:46:33 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 06:46:18 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id EAA04717; Sat, 7 Oct 1995 04:53:51 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id AAA04703; Sat, 7 Oct 1995 00:53:47 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070453.AAA04703@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <18806-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 05:46:45 +0100 Date: Sat, 7 Oct 1995 05:46:43 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 05:46:31 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04329; Sat, 7 Oct 1995 03:46:54 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04315; Fri, 6 Oct 1995 23:46:47 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070346.XAA04315@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <17587-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 04:38:58 +0100 Date: Sat, 7 Oct 1995 04:38:56 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 04:38:34 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id AAA03536; Sat, 7 Oct 1995 00:44:08 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id UAA03522; Fri, 6 Oct 1995 20:44:04 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070044.UAA03522@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <13639-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:37:28 +0100 Date: Sat, 7 Oct 1995 01:37:26 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:37:13 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA03402; Fri, 6 Oct 1995 23:57:18 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id TAA03388; Fri, 6 Oct 1995 19:57:13 -0400 From: postmaster@hull.ac.uk Message-Id: <199510062357.TAA03388@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <12813-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 00:51:13 +0100 Date: Sat, 7 Oct 1995 00:51:10 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 00:50:47 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id WAA03235; Fri, 6 Oct 1995 22:52:04 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id SAA03220; Fri, 6 Oct 1995 18:52:00 -0400 From: postmaster@hull.ac.uk Message-Id: <199510062252.SAA03220@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <11498-0@mailhub1.hull.ac.uk>; Fri, 6 Oct 1995 23:45:39 +0100 Date: Fri, 6 Oct 1995 23:45:37 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Fri, 6 Oct 1995 23:44:19 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id VAA03090; Fri, 6 Oct 1995 21:28:53 GMT Received: from dub-img-2.compuserve.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id RAA03076; Fri, 6 Oct 1995 17:28:49 -0400 Received: by dub-img-2.compuserve.com (8.6.10/5.950515) id RAA09625; Fri, 6 Oct 1995 17:28:28 -0400 Date: 06 Oct 95 17:26:15 EDT From: "Roger S. Cohen" <72772.2212@COMPUSERVE.COM> To: DIY_EFI Subject: Research Message-ID: <951006212614_72772.2212_EHL253-1@CompuServe.COM> Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi DIYers, I spent the afternoon at the local library looking for info on the ALDL Serial data format to a SCAN tool ... with no luck! But did find two things of interest to the group: Mitchells On Demand - for free AND a citation for new literature in SAE's Automotive Engineering (V88, 6/80): "Zirconia Oxygen Sensor - An Equivalent Circuit Model" - Fleming, Research Labs, GM, Warren, MI. Unfortunately, the latest issue was 12/80 so I am still looking for the SCAN data. Any ideas? Roger Cohen 72772.2212@compuserve.com From owner-diy_efi-archive Sat Oct 7 06:14:52 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id GAA05137; Sat, 7 Oct 1995 06:12:16 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id CAA05123; Sat, 7 Oct 1995 02:12:12 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070612.CAA05123@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <20588-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 07:06:13 +0100 Date: Sat, 7 Oct 1995 07:06:08 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 07:05:34 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id FAA04821; Sat, 7 Oct 1995 05:11:03 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id BAA04807; Sat, 7 Oct 1995 01:10:59 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070510.BAA04807@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <19071-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 06:04:34 +0100 Date: Sat, 7 Oct 1995 06:04:32 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 06:04:18 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id EAA04480; Sat, 7 Oct 1995 04:12:10 GMT Received: from gater3.sematech.org by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id AAA04466; Sat, 7 Oct 1995 00:12:08 -0400 Received: from GATEV4.SEMATECH.ORG by gater3.sematech.org (8.6.12/F-1.9) with ESMTP id XAA15212; Fri, 6 Oct 1995 23:11:49 -0500 Received: from MR.SEMATECH.Org by SEMATECH.Org (PMDF V4.3-13 #5463) id <01HW4YDTMMXC8Y5W74@SEMATECH.Org>; Fri, 06 Oct 1995 23:11:42 -0500 (CDT) Received: with PMDF-MR; Fri, 6 Oct 1995 23:09:51 -0500 (CDT) MR-Received: by mta MAILV2; Relayed; Fri, 06 Oct 1995 23:09:51 -0500 (CDT) MR-Received: by mta GATEV1; Relayed; Fri, 06 Oct 1995 23:09:56 -0500 (CDT) Alternate-recipient: prohibited Disclose-recipients: prohibited Date: Fri, 06 Oct 1995 23:01:00 -0500 (CDT) From: Steve Knickerbocker 512-356-3000 X6759 Subject: bouncy messages To: diy_efi@coulomb.eng.ohio-state.edu Message-id: <01HW4YDVDO3Q8Y5W74@MR.SEMATECH.Org> MIME-version: 1.0 Content-type: TEXT/PLAIN; CHARSET=US-ASCII Content-transfer-encoding: 7BIT Posting-date: Fri, 06 Oct 1995 23:03:00 -0500 (CDT) Importance: normal Priority: normal X400-MTS-identifier: [;15903260015991/1759689@VAXEN] A1-type: MAIL Hop-count: 2 Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Am I the only one to keep getiing a bounce message over and over and over again? It isn't even a post I sent. Can someone look in to this? Thanks, Thunderstruck... From owner-diy_efi-archive Sat Oct 7 06:15:00 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id GAA05154; Sat, 7 Oct 1995 06:13:53 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id CAA05140; Sat, 7 Oct 1995 02:13:48 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070613.CAA05140@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <20639-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 07:07:29 +0100 Date: Sat, 7 Oct 1995 07:07:28 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 07:06:56 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id FAA04765; Sat, 7 Oct 1995 05:04:37 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id BAA04751; Sat, 7 Oct 1995 01:04:28 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070504.BAA04751@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <18940-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 05:58:24 +0100 Date: Sat, 7 Oct 1995 05:58:21 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 05:57:55 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id EAA04424; Sat, 7 Oct 1995 04:07:47 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id AAA04410; Sat, 7 Oct 1995 00:07:42 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070407.AAA04410@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <18070-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 05:01:35 +0100 Date: Sat, 7 Oct 1995 05:01:29 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 05:00:42 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04099; Sat, 7 Oct 1995 03:08:48 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04085; Fri, 6 Oct 1995 23:08:42 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070308.XAA04085@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <16617-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 03:59:58 +0100 Date: Sat, 7 Oct 1995 03:59:57 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 03:59:43 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id CAA03888; Sat, 7 Oct 1995 02:18:14 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id WAA03873; Fri, 6 Oct 1995 22:18:11 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070218.WAA03873@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <15588-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 03:12:05 +0100 Date: Sat, 7 Oct 1995 03:12:00 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 03:11:01 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id BAA03652; Sat, 7 Oct 1995 01:12:12 GMT Received: from dione.gi.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id VAA03638; Fri, 6 Oct 1995 21:12:09 -0400 Received: from gismtpgate.gi.com (po1.gi.com) by VCA.GI.COM (PMDF V5.0-5 #7516) id <01HW4NVXG6AOK6PEA6@VCA.GI.COM> for DIY_EFI@coulomb.eng.ohio-state.edu; Fri, 06 Oct 1995 18:11:42 -0700 (PDT) Received: by gismtpgate.gi.com with Microsoft Mail id <3075D3B6@gismtpgate.gi.com>; Fri, 06 Oct 1995 18:11:18 -0700 (PDT) Date: Fri, 06 Oct 1995 18:11:00 -0700 (PDT) From: "Zublin, Bryan (SD-MS)" Subject: Haltech throttle bodies and Re: Fuel injection questions To: "diy_efi (postings)" Message-id: <3075D3B6@gismtpgate.gi.com> X-Mailer: Microsoft Mail V3.0 Content-transfer-encoding: 7BIT Encoding: 26 TEXT Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Tom "How could the motor be too lean?" Walter writes: >REVERSIONS: While we all realize the the closing of the intake valve >will cause a "back pulse" of air through the intake track, I was not >really aware of how critical it could be. An engine builder could not >get enough fuel into an injected engine... at WOT the engine was running >LEAN, despite "having more than enough fuel to flood it". Hmm, problem >was a unique reversion pattern. Rather than the usual area around the >intake walls, there was ALSO an effected area in the middle. Dead center >of the intake area of the FUEL injector jet!!! The reversion pulse of this >radically cammed motor was enough to blow fuel back out the short intake >track! [Haltech throttle bodies... look like Weber DCOE's with an injector >port]. Result was interesting . So when done with all the calculations, >and theories, it is great fun to get it all blown back in your face! ;-) Tom, What was the solution to this problem? Different cam timing? Moved injector? Has anyone else on this list used the Haltech throttle bodies? I have considered using them in place of the Weber DCOE carbs on my 1980 Toyota Celica. Bryan Zublin bzublin@gi.com From owner-diy_efi-archive Sat Oct 7 06:21:10 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id GAA05212; Sat, 7 Oct 1995 06:20:02 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id CAA05198; Sat, 7 Oct 1995 02:19:57 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070619.CAA05198@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <20736-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 07:10:38 +0100 Date: Sat, 7 Oct 1995 07:10:36 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 07:10:23 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id FAA04868; Sat, 7 Oct 1995 05:16:53 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id BAA04854; Sat, 7 Oct 1995 01:16:47 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070516.BAA04854@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <19133-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 06:08:07 +0100 Date: Sat, 7 Oct 1995 06:08:05 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 06:07:51 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id EAA04446; Sat, 7 Oct 1995 04:08:50 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id AAA04432; Sat, 7 Oct 1995 00:08:45 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070408.AAA04432@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <18103-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 05:01:50 +0100 Date: Sat, 7 Oct 1995 05:01:44 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 05:01:11 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04193; Sat, 7 Oct 1995 03:24:37 GMT Received: from spsgate.sps.mot.com by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04179; Fri, 6 Oct 1995 23:24:34 -0400 Received: from mogate (mogate.sps.mot.com) by spsgate.sps.mot.com (4.1/SMI-4.1/Email 2.1 10/25/93) id AA04728 for DIY_EFI@coulomb.eng.ohio-state.edu; Fri, 6 Oct 95 20:24:16 MST Received: from txbc.sps.mot.com ([192.88.171.200]) by mogate (4.1/SMI-4.1/Email-2.0) id AA00706; Fri, 6 Oct 95 20:24:15 MST Received: from roadster.sps.mot.com by txbc.sps.mot.com with SMTP (1.38.193.4/16.2) id AA05683; Fri, 6 Oct 95 22:24:14 -0500 Received: by roadster.autotest (4.1/SMI-4.1) id AA26349; Fri, 6 Oct 95 22:20:21 CDT Date: Fri, 6 Oct 95 22:20:21 CDT From: walter@roadster.sps.mot.com (thomas walter x5955) Message-Id: <9510070320.AA26349@roadster.autotest> To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Re: Haltech throttle bodies and Re: Fuel injection questions Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Solution to the reversion problem dealt with the intake manifold. The revised manifold was slightly different. Seems the port - intake manifold - injector location was at some critical point at the desired rpm. Wave theory is just one of those things I would not think about, but came into play on that design (remember it was a race engine, with a radical cam... ). No, I did not have anything to do with the solution. Perhaps one of those "why didn't I think of that" was the elimination of the air pumps and the additions of reed relays to the air cleaner housing. First time I saw that (under the hood of a Datsun), it really took along time to figure out what they had done. Despite having built and played with two stroke motorcycles, it was not exactly clear WHY it worked. Once it dawned on me, it seemed almost too simple of a solution. ;-) --Tom From owner-diy_efi-archive Sat Oct 7 06:29:16 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id GAA05256; Sat, 7 Oct 1995 06:26:56 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id CAA05242; Sat, 7 Oct 1995 02:26:51 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070626.CAA05242@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <20828-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 07:19:46 +0100 Date: Sat, 7 Oct 1995 07:19:44 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 07:15:39 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id FAA04805; Sat, 7 Oct 1995 05:10:20 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id BAA04791; Sat, 7 Oct 1995 01:10:13 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070510.BAA04791@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <19024-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 06:01:11 +0100 Date: Sat, 7 Oct 1995 06:01:10 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 05:59:03 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04391; Sat, 7 Oct 1995 03:58:57 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04377; Fri, 6 Oct 1995 23:58:52 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070358.XAA04377@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <17874-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 04:52:46 +0100 Date: Sat, 7 Oct 1995 04:52:44 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 04:52:25 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04141; Sat, 7 Oct 1995 03:15:50 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04127; Fri, 6 Oct 1995 23:15:45 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070315.XAA04127@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <16847-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 04:08:52 +0100 Date: Sat, 7 Oct 1995 04:08:50 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 04:08:30 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id CAA03855; Sat, 7 Oct 1995 02:14:37 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id WAA03841; Fri, 6 Oct 1995 22:14:33 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070214.WAA03841@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <15451-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 03:08:06 +0100 Date: Sat, 7 Oct 1995 03:08:04 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 03:07:44 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id BAA03623; Sat, 7 Oct 1995 01:05:07 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id VAA03609; Fri, 6 Oct 1995 21:05:01 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070105.VAA03609@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <14006-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:57:55 +0100 Date: Sat, 7 Oct 1995 01:57:53 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:57:24 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id AAA03458; Sat, 7 Oct 1995 00:12:39 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id UAA03444; Fri, 6 Oct 1995 20:12:35 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070012.UAA03444@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <13100-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:06:02 +0100 Date: Sat, 7 Oct 1995 01:05:59 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:05:08 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA03295; Fri, 6 Oct 1995 23:16:55 GMT Received: from spot.Colorado.EDU by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id TAA03281; Fri, 6 Oct 1995 19:16:53 -0400 Received: (from ciciora@localhost) by spot.Colorado.EDU (8.6.12/8.6.12/CNS-3.6) id RAA01233; Fri, 6 Oct 1995 17:16:33 -0600 Date: Fri, 6 Oct 1995 17:16:32 -0600 (MDT) From: CICIORA STEVEN JOSEP To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Intel Hex to .S19 converter In-Reply-To: <51@turbo.win-uk.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu O.K., One of my eprom programmers will only save a binary file, the other will save binary, or intel hex (but it will read *.s19 records!). So I got an image of the prom from my Beretta, and the SIM68 program from the Motorolla BBS, but SIM68 only wants *.s19 records. Anyone got any suggestions on how to convert binary files, or preferably intel hex files to motorola *.s19 records? Thanks for your time! -Steven Ciciora From owner-diy_efi-archive Sat Oct 7 07:01:31 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id GAA05397; Sat, 7 Oct 1995 06:58:32 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id CAA05383; Sat, 7 Oct 1995 02:58:28 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070658.CAA05383@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <21520-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 07:52:35 +0100 Date: Sat, 7 Oct 1995 07:52:33 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 07:51:32 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id FAA05070; Sat, 7 Oct 1995 05:53:21 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id BAA05056; Sat, 7 Oct 1995 01:53:16 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070553.BAA05056@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <20214-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 06:46:37 +0100 Date: Sat, 7 Oct 1995 06:46:33 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 06:46:18 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id EAA04717; Sat, 7 Oct 1995 04:53:51 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id AAA04703; Sat, 7 Oct 1995 00:53:47 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070453.AAA04703@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <18806-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 05:46:45 +0100 Date: Sat, 7 Oct 1995 05:46:43 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 05:46:31 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04329; Sat, 7 Oct 1995 03:46:54 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04315; Fri, 6 Oct 1995 23:46:47 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070346.XAA04315@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <17587-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 04:38:58 +0100 Date: Sat, 7 Oct 1995 04:38:56 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 04:38:34 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id AAA03536; Sat, 7 Oct 1995 00:44:08 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id UAA03522; Fri, 6 Oct 1995 20:44:04 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070044.UAA03522@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <13639-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:37:28 +0100 Date: Sat, 7 Oct 1995 01:37:26 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:37:13 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA03402; Fri, 6 Oct 1995 23:57:18 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id TAA03388; Fri, 6 Oct 1995 19:57:13 -0400 From: postmaster@hull.ac.uk Message-Id: <199510062357.TAA03388@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <12813-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 00:51:13 +0100 Date: Sat, 7 Oct 1995 00:51:10 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 00:50:47 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id WAA03235; Fri, 6 Oct 1995 22:52:04 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id SAA03220; Fri, 6 Oct 1995 18:52:00 -0400 From: postmaster@hull.ac.uk Message-Id: <199510062252.SAA03220@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <11498-0@mailhub1.hull.ac.uk>; Fri, 6 Oct 1995 23:45:39 +0100 Date: Fri, 6 Oct 1995 23:45:37 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Fri, 6 Oct 1995 23:44:19 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id VAA03090; Fri, 6 Oct 1995 21:28:53 GMT Received: from dub-img-2.compuserve.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id RAA03076; Fri, 6 Oct 1995 17:28:49 -0400 Received: by dub-img-2.compuserve.com (8.6.10/5.950515) id RAA09625; Fri, 6 Oct 1995 17:28:28 -0400 Date: 06 Oct 95 17:26:15 EDT From: "Roger S. Cohen" <72772.2212@COMPUSERVE.COM> To: DIY_EFI Subject: Research Message-ID: <951006212614_72772.2212_EHL253-1@CompuServe.COM> Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi DIYers, I spent the afternoon at the local library looking for info on the ALDL Serial data format to a SCAN tool ... with no luck! But did find two things of interest to the group: Mitchells On Demand - for free AND a citation for new literature in SAE's Automotive Engineering (V88, 6/80): "Zirconia Oxygen Sensor - An Equivalent Circuit Model" - Fleming, Research Labs, GM, Warren, MI. Unfortunately, the latest issue was 12/80 so I am still looking for the SCAN data. Any ideas? Roger Cohen 72772.2212@compuserve.com From owner-diy_efi-archive Sat Oct 7 07:01:31 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id GAA05420; Sat, 7 Oct 1995 06:59:00 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id CAA05406; Sat, 7 Oct 1995 02:58:57 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070658.CAA05406@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <21556-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 07:53:04 +0100 Date: Sat, 7 Oct 1995 07:53:03 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 07:52:55 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id GAA05137; Sat, 7 Oct 1995 06:12:16 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id CAA05123; Sat, 7 Oct 1995 02:12:12 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070612.CAA05123@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <20588-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 07:06:13 +0100 Date: Sat, 7 Oct 1995 07:06:08 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 07:05:34 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id FAA04821; Sat, 7 Oct 1995 05:11:03 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id BAA04807; Sat, 7 Oct 1995 01:10:59 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070510.BAA04807@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <19071-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 06:04:34 +0100 Date: Sat, 7 Oct 1995 06:04:32 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 06:04:18 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id EAA04480; Sat, 7 Oct 1995 04:12:10 GMT Received: from gater3.sematech.org by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id AAA04466; Sat, 7 Oct 1995 00:12:08 -0400 Received: from GATEV4.SEMATECH.ORG by gater3.sematech.org (8.6.12/F-1.9) with ESMTP id XAA15212; Fri, 6 Oct 1995 23:11:49 -0500 Received: from MR.SEMATECH.Org by SEMATECH.Org (PMDF V4.3-13 #5463) id <01HW4YDTMMXC8Y5W74@SEMATECH.Org>; Fri, 06 Oct 1995 23:11:42 -0500 (CDT) Received: with PMDF-MR; Fri, 6 Oct 1995 23:09:51 -0500 (CDT) MR-Received: by mta MAILV2; Relayed; Fri, 06 Oct 1995 23:09:51 -0500 (CDT) MR-Received: by mta GATEV1; Relayed; Fri, 06 Oct 1995 23:09:56 -0500 (CDT) Alternate-recipient: prohibited Disclose-recipients: prohibited Date: Fri, 06 Oct 1995 23:01:00 -0500 (CDT) From: Steve Knickerbocker 512-356-3000 X6759 Subject: bouncy messages To: diy_efi@coulomb.eng.ohio-state.edu Message-id: <01HW4YDVDO3Q8Y5W74@MR.SEMATECH.Org> MIME-version: 1.0 Content-type: TEXT/PLAIN; CHARSET=US-ASCII Content-transfer-encoding: 7BIT Posting-date: Fri, 06 Oct 1995 23:03:00 -0500 (CDT) Importance: normal Priority: normal X400-MTS-identifier: [;15903260015991/1759689@VAXEN] A1-type: MAIL Hop-count: 2 Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Am I the only one to keep getiing a bounce message over and over and over again? It isn't even a post I sent. Can someone look in to this? Thanks, Thunderstruck... From owner-diy_efi-archive Sat Oct 7 07:04:13 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id HAA05457; Sat, 7 Oct 1995 07:01:46 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id DAA05442; Sat, 7 Oct 1995 03:01:42 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070701.DAA05442@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <21626-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 07:55:50 +0100 Date: Sat, 7 Oct 1995 07:55:48 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 07:55:31 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id FAA04969; Sat, 7 Oct 1995 05:35:40 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id BAA04955; Sat, 7 Oct 1995 01:35:34 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070535.BAA04955@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <19722-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 06:29:23 +0100 Date: Sat, 7 Oct 1995 06:29:10 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 06:28:18 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id EAA04581; Sat, 7 Oct 1995 04:26:04 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id AAA04567; Sat, 7 Oct 1995 00:25:59 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070425.AAA04567@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <18456-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 05:19:49 +0100 Date: Sat, 7 Oct 1995 05:19:40 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 05:18:59 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04213; Sat, 7 Oct 1995 03:27:50 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04199; Fri, 6 Oct 1995 23:27:43 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070327.XAA04199@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <17227-1@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 04:20:41 +0100 Date: Sat, 7 Oct 1995 04:20:40 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 04:19:57 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id CAA03918; Sat, 7 Oct 1995 02:25:38 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id WAA03904; Fri, 6 Oct 1995 22:25:32 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070225.WAA03904@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <15729-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 03:18:41 +0100 Date: Sat, 7 Oct 1995 03:18:40 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 03:17:51 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id BAA03715; Sat, 7 Oct 1995 01:33:47 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id VAA03701; Fri, 6 Oct 1995 21:33:43 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070133.VAA03701@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <14506-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 02:24:10 +0100 Date: Sat, 7 Oct 1995 02:24:08 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 02:21:40 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id AAA03507; Sat, 7 Oct 1995 00:34:47 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id UAA03493; Fri, 6 Oct 1995 20:34:42 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070034.UAA03493@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <13482-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:28:05 +0100 Date: Sat, 7 Oct 1995 01:28:03 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:27:44 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA03341; Fri, 6 Oct 1995 23:33:19 GMT Received: from ix9.ix.netcom.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id TAA03327; Fri, 6 Oct 1995 19:33:13 -0400 Received: from by ix9.ix.netcom.com (8.6.12/SMI-4.1/Netcom) id QAA04391; Fri, 6 Oct 1995 16:32:49 -0700 Date: Fri, 6 Oct 1995 16:32:49 -0700 Message-Id: <199510062332.QAA04391@ix9.ix.netcom.com> From: arthurok@ix.netcom.com (ARTHUR OKUN ) Subject: Re: Building an MSD-CD To: DIY_EFI@coulomb.eng.ohio-state.edu Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu You wrote: > >Okay, I went down to the library and got everything I could on high voltage >stuff... > >First, let's look at a spark gap. Essentially, you've got an insulating gap >(of air in this case). The conductivity of this gap is essentially miniscule >under normal conditions. When you hit a particular voltage (which pretty much >has to be determined experimentally) or higher, then the electrons will go >into a type of "avalanche" mode where the conductivity of the gap goes way up >(alternatively, the resistance goes way down). We won't have electrons >accelerated fast enough to make a difference, so for our purposes, the time >it takes for the gap to go into breakdown/avalanche mode is about 10^-8 secs. >(about 10 nanoseconds). After this occurs, the air affected in the gap will >be in a plasma-like state. > >Second, all capacitive high voltage impulse type circuits work by feeding >the output of a high voltage power source to the capacitor and charging it up. >When the voltage reaches the breakdown voltage of the spark gap, the capacitor >rapidly dumps the charge it held. So this means we really need a high voltage >DC-DC convertor (boost convertor). These types of circuits are also known as >charge pumps. These things look like this: > > +----------+---Inductor-----+-----Diode >|-------------+--------Spark gap--+ > | | | | | > + | | | | >Battery Capacitor 1 Switch Capacitor 2 | > - | | | | > | | | | | > +----------+----------------+--------------------------+---------------- ---+ > >Okay, this is the basic circuit. I've deleted the usual control circuitry >since we're not going to have to worry about creating a DC voltage of X at >say +/-0.1 volts (this would be some sort of sensor or transformer on the >high voltage side). Capacitor 1 is just there to smooth out the battery >power. > >Okay, close the switch. The inductor starts charging up. Now open the switch. >The collapsing magnetic field in the inductor continues to conduct via >capacitor 2. Continue toggling the switch until the spark gap reaches >breakdown and drains the capacitor. This is pretty much identical to the >old flyback circuit in television sets. In practice, you'd use a high voltage >transistor (power FET or IGBT) in place of the switch and add some digital >controls to it for gating and such. > >If you are a mechanical engineer, the inductor and capacitor store energy. >Since the inductor is a coil of wire, it takes time for the flow in the >inductor to reach the peak. The diode is essentially a "one-way valve". The >Switch is a "2-way valve" and the battery is a pump. We build up a good flow >in the inductor, which acts like a piston; it builds up inertia (not sure what >the fluid term for this action is). Then open the switch (2-way valve). The >capacitor is more like a dam (holds whatever head we build up in it). So >the flow continues out of the inductor and builds up in the capacitor as long >as there is still inertia remaining in the inductor to drive the flow. >Successive cycles of the switch build up a higher and higher head in the >capacitor until the "dam" collapses (the spark gap fires), causing the charge >that built up in the capacitor to flow out. > >There is another variation on this circuit, as follows. > > +----------+---Switch-------+ +--Diode >|-------------+--------Spark gap--+ > | | | | | | > + | | | | | >Battery Capacitor 1 Transformer Capacitor 2 | > - | | | | | > | | | | | | > +----------+----------------+ +-----------------------+-------------------+ > >In this case, the switch-inductor circuit acts as before on the transformer >primary. When the field collapses, the transformer secondary feeds charge >into Capacitor 2. The difference is that the turns ratio of the transformer >gives you an additional voltage multiplication. Other advantages are isolation >and in DC-DC convertors, the transformer version can be smaller than the >inductor version (not sure if this applies for this application). > >There is another version called the buck-boost convertor. In this case, you >can get high negative voltages rather than positive voltages. > > +----------+---Switch-------+-----Diode |<-------------+--------Spark gap--+ > | | | | | > + | | | | >Battery Capacitor 1 Inductor Capacitor 2 | > - | | | | > | | | | | > +----------+----------------+--------------------------+---------------- ---+ > >Notice that the only real change is the diode is reversed. In this circuit, >the battery is out of the loop when the switch is open. The inductor conducts >as before but it reverses the flow in the capacitor-spark gap circuit. > >There are also voltage multiplier ladders made out of spark gaps and >capacitors and also voltage multiplier ladders made out of diodes and >capacitors, but they are generally not as efficient in their power usage as >the circuits above. > >When the above circuits are used as DC-DC convertors, Capacitor 2 is enormous >so that the voltage ripple is minimized. The spark gap becomes a normal load. >Even computer "switching power supplies" use similar convertors to the above >circuits. A pair of resistors is attached on the "high voltage" side or as >an additional small secondary on the transformer. This is used as the input >to the control circuit. The control circuit usually varies the duty cycle >(on-time to off-time of the switch) although some versions vary the frequency. >The resulting voltages are as follows: > >Boost convertor: Vout=Vin/(1-Duty Cycle) >Buck-Boost: Vout=-Vin*(Duty Cycle)/(1-Duty Cycle) >Transformer Coupled Boost Convertor: Vout=Vin*N*(Duty Cycle)/(1-Duty Cycle) > where N is the turns ratio > it shouldnt be that difficult to build a simple dc-dc converter(12v-~300vdc) and a coil switching circuit with cheap tv type components the trick is to put a capacitor accross the output transistor junction just like the condensor in an old fationed kettering type ignition circuit thats also done in tv h.v.supplies which i am familar with From owner-diy_efi-archive Sat Oct 7 07:10:17 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id HAA05503; Sat, 7 Oct 1995 07:08:34 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id DAA05489; Sat, 7 Oct 1995 03:08:30 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070708.DAA05489@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <21764-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 08:02:34 +0100 Date: Sat, 7 Oct 1995 08:02:32 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 08:02:21 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id GAA05154; Sat, 7 Oct 1995 06:13:53 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id CAA05140; Sat, 7 Oct 1995 02:13:48 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070613.CAA05140@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <20639-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 07:07:29 +0100 Date: Sat, 7 Oct 1995 07:07:28 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 07:06:56 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id FAA04765; Sat, 7 Oct 1995 05:04:37 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id BAA04751; Sat, 7 Oct 1995 01:04:28 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070504.BAA04751@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <18940-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 05:58:24 +0100 Date: Sat, 7 Oct 1995 05:58:21 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 05:57:55 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id EAA04424; Sat, 7 Oct 1995 04:07:47 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id AAA04410; Sat, 7 Oct 1995 00:07:42 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070407.AAA04410@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <18070-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 05:01:35 +0100 Date: Sat, 7 Oct 1995 05:01:29 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 05:00:42 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04099; Sat, 7 Oct 1995 03:08:48 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04085; Fri, 6 Oct 1995 23:08:42 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070308.XAA04085@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <16617-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 03:59:58 +0100 Date: Sat, 7 Oct 1995 03:59:57 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 03:59:43 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id CAA03888; Sat, 7 Oct 1995 02:18:14 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id WAA03873; Fri, 6 Oct 1995 22:18:11 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070218.WAA03873@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <15588-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 03:12:05 +0100 Date: Sat, 7 Oct 1995 03:12:00 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 03:11:01 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id BAA03652; Sat, 7 Oct 1995 01:12:12 GMT Received: from dione.gi.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id VAA03638; Fri, 6 Oct 1995 21:12:09 -0400 Received: from gismtpgate.gi.com (po1.gi.com) by VCA.GI.COM (PMDF V5.0-5 #7516) id <01HW4NVXG6AOK6PEA6@VCA.GI.COM> for DIY_EFI@coulomb.eng.ohio-state.edu; Fri, 06 Oct 1995 18:11:42 -0700 (PDT) Received: by gismtpgate.gi.com with Microsoft Mail id <3075D3B6@gismtpgate.gi.com>; Fri, 06 Oct 1995 18:11:18 -0700 (PDT) Date: Fri, 06 Oct 1995 18:11:00 -0700 (PDT) From: "Zublin, Bryan (SD-MS)" Subject: Haltech throttle bodies and Re: Fuel injection questions To: "diy_efi (postings)" Message-id: <3075D3B6@gismtpgate.gi.com> X-Mailer: Microsoft Mail V3.0 Content-transfer-encoding: 7BIT Encoding: 26 TEXT Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Tom "How could the motor be too lean?" Walter writes: >REVERSIONS: While we all realize the the closing of the intake valve >will cause a "back pulse" of air through the intake track, I was not >really aware of how critical it could be. An engine builder could not >get enough fuel into an injected engine... at WOT the engine was running >LEAN, despite "having more than enough fuel to flood it". Hmm, problem >was a unique reversion pattern. Rather than the usual area around the >intake walls, there was ALSO an effected area in the middle. Dead center >of the intake area of the FUEL injector jet!!! The reversion pulse of this >radically cammed motor was enough to blow fuel back out the short intake >track! [Haltech throttle bodies... look like Weber DCOE's with an injector >port]. Result was interesting . So when done with all the calculations, >and theories, it is great fun to get it all blown back in your face! ;-) Tom, What was the solution to this problem? Different cam timing? Moved injector? Has anyone else on this list used the Haltech throttle bodies? I have considered using them in place of the Weber DCOE carbs on my 1980 Toyota Celica. Bryan Zublin bzublin@gi.com From owner-diy_efi-archive Sat Oct 7 07:31:19 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id HAA05611; Sat, 7 Oct 1995 07:27:46 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id DAA05597; Sat, 7 Oct 1995 03:27:42 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070727.DAA05597@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <21968-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 08:19:42 +0100 Date: Sat, 7 Oct 1995 08:19:41 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 08:18:52 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id GAA05212; Sat, 7 Oct 1995 06:20:02 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id CAA05198; Sat, 7 Oct 1995 02:19:57 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070619.CAA05198@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <20736-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 07:10:38 +0100 Date: Sat, 7 Oct 1995 07:10:36 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 07:10:23 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id FAA04868; Sat, 7 Oct 1995 05:16:53 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id BAA04854; Sat, 7 Oct 1995 01:16:47 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070516.BAA04854@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <19133-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 06:08:07 +0100 Date: Sat, 7 Oct 1995 06:08:05 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 06:07:51 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id EAA04446; Sat, 7 Oct 1995 04:08:50 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id AAA04432; Sat, 7 Oct 1995 00:08:45 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070408.AAA04432@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <18103-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 05:01:50 +0100 Date: Sat, 7 Oct 1995 05:01:44 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 05:01:11 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04193; Sat, 7 Oct 1995 03:24:37 GMT Received: from spsgate.sps.mot.com by coulomb.eng.ohio-state.edu via SMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04179; Fri, 6 Oct 1995 23:24:34 -0400 Received: from mogate (mogate.sps.mot.com) by spsgate.sps.mot.com (4.1/SMI-4.1/Email 2.1 10/25/93) id AA04728 for DIY_EFI@coulomb.eng.ohio-state.edu; Fri, 6 Oct 95 20:24:16 MST Received: from txbc.sps.mot.com ([192.88.171.200]) by mogate (4.1/SMI-4.1/Email-2.0) id AA00706; Fri, 6 Oct 95 20:24:15 MST Received: from roadster.sps.mot.com by txbc.sps.mot.com with SMTP (1.38.193.4/16.2) id AA05683; Fri, 6 Oct 95 22:24:14 -0500 Received: by roadster.autotest (4.1/SMI-4.1) id AA26349; Fri, 6 Oct 95 22:20:21 CDT Date: Fri, 6 Oct 95 22:20:21 CDT From: walter@roadster.sps.mot.com (thomas walter x5955) Message-Id: <9510070320.AA26349@roadster.autotest> To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Re: Haltech throttle bodies and Re: Fuel injection questions Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Solution to the reversion problem dealt with the intake manifold. The revised manifold was slightly different. Seems the port - intake manifold - injector location was at some critical point at the desired rpm. Wave theory is just one of those things I would not think about, but came into play on that design (remember it was a race engine, with a radical cam... ). No, I did not have anything to do with the solution. Perhaps one of those "why didn't I think of that" was the elimination of the air pumps and the additions of reed relays to the air cleaner housing. First time I saw that (under the hood of a Datsun), it really took along time to figure out what they had done. Despite having built and played with two stroke motorcycles, it was not exactly clear WHY it worked. Once it dawned on me, it seemed almost too simple of a solution. ;-) --Tom From owner-diy_efi-archive Sat Oct 7 07:51:06 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id HAA05696; Sat, 7 Oct 1995 07:49:12 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id DAA05682; Sat, 7 Oct 1995 03:49:08 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070749.DAA05682@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <22328-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 08:42:20 +0100 Date: Sat, 7 Oct 1995 08:42:18 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 08:42:02 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id GAA05256; Sat, 7 Oct 1995 06:26:56 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id CAA05242; Sat, 7 Oct 1995 02:26:51 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070626.CAA05242@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <20828-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 07:19:46 +0100 Date: Sat, 7 Oct 1995 07:19:44 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 07:15:39 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id FAA04805; Sat, 7 Oct 1995 05:10:20 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id BAA04791; Sat, 7 Oct 1995 01:10:13 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070510.BAA04791@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <19024-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 06:01:11 +0100 Date: Sat, 7 Oct 1995 06:01:10 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 05:59:03 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04391; Sat, 7 Oct 1995 03:58:57 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04377; Fri, 6 Oct 1995 23:58:52 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070358.XAA04377@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <17874-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 04:52:46 +0100 Date: Sat, 7 Oct 1995 04:52:44 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 04:52:25 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04141; Sat, 7 Oct 1995 03:15:50 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04127; Fri, 6 Oct 1995 23:15:45 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070315.XAA04127@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <16847-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 04:08:52 +0100 Date: Sat, 7 Oct 1995 04:08:50 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 04:08:30 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id CAA03855; Sat, 7 Oct 1995 02:14:37 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id WAA03841; Fri, 6 Oct 1995 22:14:33 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070214.WAA03841@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <15451-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 03:08:06 +0100 Date: Sat, 7 Oct 1995 03:08:04 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 03:07:44 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id BAA03623; Sat, 7 Oct 1995 01:05:07 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id VAA03609; Fri, 6 Oct 1995 21:05:01 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070105.VAA03609@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <14006-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:57:55 +0100 Date: Sat, 7 Oct 1995 01:57:53 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:57:24 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id AAA03458; Sat, 7 Oct 1995 00:12:39 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id UAA03444; Fri, 6 Oct 1995 20:12:35 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070012.UAA03444@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <13100-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:06:02 +0100 Date: Sat, 7 Oct 1995 01:05:59 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:05:08 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA03295; Fri, 6 Oct 1995 23:16:55 GMT Received: from spot.Colorado.EDU by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id TAA03281; Fri, 6 Oct 1995 19:16:53 -0400 Received: (from ciciora@localhost) by spot.Colorado.EDU (8.6.12/8.6.12/CNS-3.6) id RAA01233; Fri, 6 Oct 1995 17:16:33 -0600 Date: Fri, 6 Oct 1995 17:16:32 -0600 (MDT) From: CICIORA STEVEN JOSEP To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Intel Hex to .S19 converter In-Reply-To: <51@turbo.win-uk.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu O.K., One of my eprom programmers will only save a binary file, the other will save binary, or intel hex (but it will read *.s19 records!). So I got an image of the prom from my Beretta, and the SIM68 program from the Motorolla BBS, but SIM68 only wants *.s19 records. Anyone got any suggestions on how to convert binary files, or preferably intel hex files to motorola *.s19 records? Thanks for your time! -Steven Ciciora From owner-diy_efi-archive Sat Oct 7 08:10:37 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id IAA05777; Sat, 7 Oct 1995 08:07:29 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id EAA05763; Sat, 7 Oct 1995 04:07:24 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070807.EAA05763@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <22542-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 08:58:45 +0100 Date: Sat, 7 Oct 1995 08:58:43 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 08:58:29 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id GAA05397; Sat, 7 Oct 1995 06:58:32 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id CAA05383; Sat, 7 Oct 1995 02:58:28 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070658.CAA05383@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <21520-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 07:52:35 +0100 Date: Sat, 7 Oct 1995 07:52:33 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 07:51:32 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id FAA05070; Sat, 7 Oct 1995 05:53:21 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id BAA05056; Sat, 7 Oct 1995 01:53:16 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070553.BAA05056@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <20214-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 06:46:37 +0100 Date: Sat, 7 Oct 1995 06:46:33 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 06:46:18 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id EAA04717; Sat, 7 Oct 1995 04:53:51 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id AAA04703; Sat, 7 Oct 1995 00:53:47 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070453.AAA04703@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <18806-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 05:46:45 +0100 Date: Sat, 7 Oct 1995 05:46:43 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 05:46:31 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id DAA04329; Sat, 7 Oct 1995 03:46:54 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id XAA04315; Fri, 6 Oct 1995 23:46:47 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070346.XAA04315@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <17587-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 04:38:58 +0100 Date: Sat, 7 Oct 1995 04:38:56 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 04:38:34 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id AAA03536; Sat, 7 Oct 1995 00:44:08 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id UAA03522; Fri, 6 Oct 1995 20:44:04 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070044.UAA03522@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <13639-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 01:37:28 +0100 Date: Sat, 7 Oct 1995 01:37:26 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 01:37:13 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id XAA03402; Fri, 6 Oct 1995 23:57:18 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id TAA03388; Fri, 6 Oct 1995 19:57:13 -0400 From: postmaster@hull.ac.uk Message-Id: <199510062357.TAA03388@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <12813-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 00:51:13 +0100 Date: Sat, 7 Oct 1995 00:51:10 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 00:50:47 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id WAA03235; Fri, 6 Oct 1995 22:52:04 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id SAA03220; Fri, 6 Oct 1995 18:52:00 -0400 From: postmaster@hull.ac.uk Message-Id: <199510062252.SAA03220@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <11498-0@mailhub1.hull.ac.uk>; Fri, 6 Oct 1995 23:45:39 +0100 Date: Fri, 6 Oct 1995 23:45:37 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Fri, 6 Oct 1995 23:44:19 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id VAA03090; Fri, 6 Oct 1995 21:28:53 GMT Received: from dub-img-2.compuserve.com by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id RAA03076; Fri, 6 Oct 1995 17:28:49 -0400 Received: by dub-img-2.compuserve.com (8.6.10/5.950515) id RAA09625; Fri, 6 Oct 1995 17:28:28 -0400 Date: 06 Oct 95 17:26:15 EDT From: "Roger S. Cohen" <72772.2212@COMPUSERVE.COM> To: DIY_EFI Subject: Research Message-ID: <951006212614_72772.2212_EHL253-1@CompuServe.COM> Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi DIYers, I spent the afternoon at the local library looking for info on the ALDL Serial data format to a SCAN tool ... with no luck! But did find two things of interest to the group: Mitchells On Demand - for free AND a citation for new literature in SAE's Automotive Engineering (V88, 6/80): "Zirconia Oxygen Sensor - An Equivalent Circuit Model" - Fleming, Research Labs, GM, Warren, MI. Unfortunately, the latest issue was 12/80 so I am still looking for the SCAN data. Any ideas? Roger Cohen 72772.2212@compuserve.com From owner-diy_efi-archive Sat Oct 7 08:10:50 1995 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id IAA05811; Sat, 7 Oct 1995 08:09:42 GMT Return-Path: Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id EAA05797; Sat, 7 Oct 1995 04:09:39 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070809.EAA05797@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <22618-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 09:01:48 +0100 Date: Sat, 7 Oct 1995 09:01:46 +0100 To: DIY_EFI Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 09:00:46 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id GAA05420; Sat, 7 Oct 1995 06:59:00 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id CAA05406; Sat, 7 Oct 1995 02:58:57 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070658.CAA05406@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <21556-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 07:53:04 +0100 Date: Sat, 7 Oct 1995 07:53:03 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 07:52:55 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id GAA05137; Sat, 7 Oct 1995 06:12:16 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id CAA05123; Sat, 7 Oct 1995 02:12:12 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070612.CAA05123@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <20588-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 07:06:13 +0100 Date: Sat, 7 Oct 1995 07:06:08 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 07:05:34 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id FAA04821; Sat, 7 Oct 1995 05:11:03 GMT Received: from chopin.ucc.hull.ac.uk by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id BAA04807; Sat, 7 Oct 1995 01:10:59 -0400 From: postmaster@hull.ac.uk Message-Id: <199510070510.BAA04807@coulomb.eng.ohio-state.edu> Received: from hull.ac.uk by mailhub1.hull.ac.uk id <19071-0@mailhub1.hull.ac.uk>; Sat, 7 Oct 1995 06:04:34 +0100 Date: Sat, 7 Oct 1995 06:04:32 +0100 To: DIY_EFI@coulomb.eng.ohio-state.edu Subject: Mail for:- n.mulvana@e-eng.hull.ac.uk Sender: owner-diy_efi@coulomb.eng.ohio-state.edu Precedence: bulk Reply-To: DIY_EFI@coulomb.eng.ohio-state.edu Hi, This message has been generated in response to your message below. The central mail system is unable to deliver your message as there are a number of people with the same initials and surnames. Please select the appropriate e-mail address from the list shown below and try again:- Any questions or problems, please call or email Alex Sharaz Voice +44 1482 465700 Janet:A.Sharaz@uk.ac.hull.ucc Internet:A.Sharaz@ucc.hull.ac.uk ---- =============================== /usr/local/bin/osimail: Command not found =============================== Your Message:- Received: from coulomb.eng.ohio-state.edu by chopin with SMTP internet(PP); Sat, 7 Oct 1995 06:04:18 +0100 Received: by coulomb.eng.ohio-state.edu (940816.SGI.8.6.9/940406.SGI) for diy_efi-outgoing id EAA04480; Sat, 7 Oct 1995 04:12:10 GMT Received: from gater3.sematech.org by coulomb.eng.ohio-state.edu via ESMTP (940816.SGI.8.6.9/940406.SGI) for id AAA04466; Sat, 7 Oct 1995 00:12:08 -0400 Received: from GATEV4.SEMATECH.ORG by gater3.sematech.org (8.6.12/F-1.9) with ESMTP id XAA15212; Fri, 6 Oct 1995 23:11:49 -0500 Received: from MR.SEMATECH.Org by SEMATECH.Org (PMDF V4.3-13 #5463) id <01HW4YDTMMXC8Y5W74@SEMATECH.Org>; Fri, 06 Oct 1995 23:11:42 -0500 (CDT) Received: with PMDF-MR; Fri, 6 Oct 1995 23:09:51 -0500 (CDT) MR-Received: by mta MAILV2; Relayed; Fri, 06 Oct 1995 23:09:51 -0500 (CDT) MR-Received: by mta GATEV1; Relayed;