Funky Conversion Questions

[kenkelly at lucent.com]

Steve,
	Just saw that you have a 95 Camaro PCM programmed for the 4L60E. I have a 95
Camaro PCM from a 6 speed car. I was going to have GM reprogram it. The PCM's
are the same just a firmware difference. Where are you located? Maybe we should
swap.

	I made up a table showing the pinout of the four major engine harness
connectors. It has the Pin#, Color, function, and GM F-body page reference for
each pin. I also just got the Forward lamp harness, and I am using it for the
relay panel and connecors.

		Ken

Frederic Breitwieser wrote:
> 
> >Current Status:  Engine is bolted to the tranny adapter, getting ready to do
> >the wiring...
> 
> Kewl Conversion.  I've just finished making an adaptor to mate a Buick V6
> to the same transaxle, which will reside in the mid-engine position.
> 
> >Question 1:  Is it worth going through the hassle of converting the stock
> >engine short harness for use in this conversion or should I just go to
> >someone like Painless?  They make a kit 60501 which fits the engine and
> >serves its functions only.
> 
> If you have the engine compartment harness for your Camaro engine,
> connecting everything to the ECM, use that.  Its certainly the easy way to
> go, with only a few wires to the dash.  At least your engine will run
> correctly first shot, though your gauges might be off (okay, they WILL be
> off)   Also, you should purchase a Haynes manual (or Chiltons) for the
> donor vehicle model and year, and get the wiring diagram for
> troubleshooting later.  Its $20 well spent.
> 
> >Question 2:  I believe that the Audi VSS is a two pulse unit.  What
> >additional specs do I need to know to correctly convert the signal for use
> >with the GM ECU?
> 
> I haven't started this part of the conversion yet... (working on the frame
> and intake manifold right now), however the the engine you have is
> expecting somewhere in the neighborhood of 4000 pulses per mile.  The Audi
> transaxle, if its the same 1986 5-speed manual I have, puts out 3750 pulses
> per mile, assuming you have the stock size tires.  I wish I wrote the tire
> size down off my friend's Audi 5000 turbo, as this is the car I attached a
> frequency counter too.  Anyway, I'll be running larger diameter tires, so
> making a conversion circuit would have been interesting.  What I plan to do
> is graft the GM speed sensor to the Audi transaxle, or use magnets on one
> of the axles, or an optical encoder.
> 
> >Question 3:  When bolting this engine to the stock Audi 016 tranny, do I
> >need to fool the ECU in anyway since it came from an automatic car?
> 
> Aaah, you do have the same transaxle I have.  There are aftermarket PROMS
> for that engine (and ones similar) to eliminate the automatic stuff in the
> code, and the neutral/reverse switch should be pretty easy to fabricate.
> Sorry I don't have a specific recomendation for a vendor, but there are
> quite a few 'vette, camaro/transam sites around the internet.  I'd like to
> keep in touch, and follow your progress.  I was worried I might shred my
> Audi 016 transaxle with the Buick HP.  I imagine your vehicle would be an
> excellent test :)
> 
> I'm also curious where you put your side-saddle radiator :)
> 
> Frederic Breitwieser
> Bridgeport, CT 06606
> 
> Homebrew Automotive Website:
> http://www.xephic.dynip.com/
> 
> 1993 Supercharged Lincoln Continental
> 1989 HMMWV
> 2000 Buick-Powered Mid-Engined Sports Car
> 
> -