Distributorless ignition (I'm new around here)

[Len Sabatine]

   Heck of a thing when ya run out of fingers to count with !!  This is 
correct.
   this time around.
   The Aurora , Delco Module # 1103971 [4L18]  on the one I'm looking at
   on my desk. "Each" end of module has 1, 3 pin  and 1 , 6 pin 
MertiPack  sockets
   respectively.  The remainder of the Engine appears Physically same to 
Cad counterpart.
    Len


>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 at wayne.edu>
>To: <gmecm at 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 at 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 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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