Distributorless ignition (I'm new around here)

[Daniel Collins]

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 at bright.net>
To: diy_efi at diy-efi.org <diy_efi at 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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>
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