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Re: Distributorless ignition (I'm new around here)



Maybe?.
The Northstar diagrams I've seen show everything to be inside the PCM, no
external module.
Any one know for sure on the Olds?.
Bruce


----- Original Message -----
From: <ae2598@wayne.edu>
To: <gmecm@diy-efi.org>
Sent: Tuesday, November 28, 2000 3:55 PM
Subject: Re: Distributorless ignition (I'm new around here)


> Yeah, northstar or aurora motors surely must use DIS.  Maybe the earlier
> caddy stuff too, like the HT4100?
>
> On Tue, 28 Nov 2000, Drew Skinner wrote:
>
> > What about the caddys?
> >
> > >>> nacelp@bright.net 11/28 1:08 PM >>>
> >
> > The ZR1 vettes, are the only ones I know of
> > Bruce
> >
> >
> >
> >
> > > Do any of the Yank GM cars run a 8 Cyl DIS spark system that we could
> > adapt
> > > the ignition module off like the Buick V6
> > > -----Original Message-----
> > > From: Bruce Plecan <nacelp@bright.net>
> > > To: diy_efi@diy-efi.org <diy_efi@diy-efi.org>
> > > Date: Thursday, November 23, 2000 4:46 PM
> > > Subject: Re: Distributorless ignition (I'm new around here)
> > >
> > >
> > > >
> > > >Electromotive sells all the bits to do that, and even  a.
> > > >ZR-1 are a parts source but rare.
> > > >Alternatives use two electromotive sensors and tone rings, inside the
oem
> > > >dissy
> > > >Some reading at the 332 site.
> > > >MSD supposedly has a v-8 dissy for SEFI so it has a synch signal, if
I
> > > >recall right.
> > > >Bruce
> > > >
> > > >>      I am intrested in making a distributorless ignition for my
early
> > V8
> > > >> engine...My electronics training is limited to a junior college
> > > >"Introduction
> > > >> to electronics" course and a semester of "Electronic math".  I have
> > read
> > > >> Drury's DDIS article...but even that was a little much for me, as I
> > > didn't
> > > >> understand alot of the lingo.
> > > >>      My goal right now is to just build the initial infrastructure
> > needed
> > > >to
> > > >> fire the coils at idle with static advance. I've broken this down
into
> > > >> subgroups:
> > > >>
> > > >> 1. Power my coils, The coils are junkyard sourced from the late
80's GM
> > > >3.8
> > > >> liter 6cyl three coil packs.  I've been looking for a four coil
pack
> > from
> > > >an
> > > >> Aurora or something but they don't seem to have trickled down to
the
> > > "pick
> > > >a
> > > >> part" yet.
> > > >>
> > > >> 2. Trigger the ignition, I was thinking of four hall effect
transducers
> > > at
> > > >90
> > > >> degree intervals and a magnet epoxied into the crank pulley.
> > > >>
> > > >> 3. Control the coils, Find the correct transistor to work with the
hall
> > > >> effects in order to control current to the coils.
> > > >>
> > > >>      My current quandary is what type of hall effect sensor I
should
> > > >choose,
> > > >> www.digikey.com requests info. such as "output type" and
"package/case"
> > > >and I
> > > >> really don't know what my parameters should be.  Can anyone suggest
the
> > > >best
> > > >> transducer for my application?  Someday I will advance to digital
> > control
> > > >of
> > > >> the advance curve and maybe even fuel injection but right now I am
just
> > > >> trying to keep everything as simple and cheap as possible.  My
sincere
> > > >thanks
> > > >> to those who have read this far...any input is valued.
> > >
> >
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