Re: 89 MAF Volt to freq conversion

["Thomas Matthews" <tmatthew@stny.lrun.com>]

You are absolutly right...I'm also shocked no one else has shown interest in
this project now... What I figure to do is use my shop vac with some
restrictors, get 3 or 4 points mapped for the old, the new, and try and
construct a rough fuel curve off of this and fine tune it on the car...
Not an elegant solution by any means, but I think I can make it work...
Anyone have any ideas, refinements, or are you dying to have a good laugh?
I've also thought of trying to find the exact increase in area and flow
mathmatically, and then adjusting the LV8 variables to match so I can be in
the ballpark.
Terry Kelley- does your GMEPro program have this table listed? Seriously
thinking about buying your program... Can you tell me off list what it can
adjust?
Anyone know of any circuit designs for freq to voltage?
I'm basically looking at doing what Bruce proposed a few months ago...

Tom
----- Original Message -----
From: "DC Smith" <morepoweral@tetranet.net>
To: <gmecm@efi332.eng.ohio-state.edu>
Sent: Wednesday, January 05, 2000 10:42 AM
Subject: Re: 89 MAF Volt to freq conversion


> Hey, Tom! It's been over 2 days and no reply on this one? Gee, if it
> were only true for the 7148 Buick GN code. It sure would puit a cramp in
> the MAF translator sales, since the GN MAF went disc.. :) MAN! I need to
> read more of those web pages! <grin>
>
>  Anybody know anything about this? Pulleeze? ;)
>
>  BTW, happy new year friends!
>
> Thomas Matthews wrote:
> >
> > In the ECMguy's hack of the 86 '165 bin, he has a flag for MAF type,
voltage
> > or frequency... Does anyone know if this is present in the 89 ARAP ($6E)
> > calibration, and if it is there, where it is?
> > Is it as simple as flipping the volt to frequency flag, and
recalibrating
> > the calibration to use a newer, higher flowing GM MAF, such as a LT1
sensor?
> > He also has 6 tables that define the range of a frequency MAF, but in
the
> > showing of the tables he has voltages- would these be the ones to
adjust?
> > Is some other part of the program performing a conversion from voltage
to
> > frequency that I have missed?
> > Also, I've seen numerous references to VATS- I thought it did not come
along
> > until '88.
> > I remember that some were heading this way a few months ago, but haven't
> > seen anything recently...
> > Thanks
> > Tom
>
> --
> ***********************************************************************
> Dan Smith      84 Regal   11.841@115.09     GSCA# 1459
> St.Charles, Missouri
> mailto:morepoweral@tetranet.net
> http://www.tetranet.net/users/morepoweral
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>
>