[Shotimes] OT Starting Fluid: Good or Evil?

[Dave Garber]

Sounds to me like he took the PCM out of the loop entirely. With that era
GM, there were only two things that the PCM 'controlled' with the engine -
The carb and the distributor. The carb had computer metered primary jets and
the distributor/spark timing was pcm calibrated. Thats it (besides TQ
lockup).

Swap out the carb and the distributor and you've effectively 'removed' the
PCM. (I should also note that with the computer carb removed, the PCM won't
run the spark timing aggressively. If I remember correctly, in that case it
goes to a static condition which is real doggy)


Dave Garber
Pittsburgh, PA
'99 White


----- Original Message -----
From: "Ron Porter" <ronporter@prodigy.net>
To: "Scott Sweeney" <webtrendsguy@yahoo.com>; <shotimes@autox.team.net>
Sent: Tuesday, February 25, 2003 11:31 AM
Subject: RE: [Shotimes] OT Starting Fluid: Good or Evil?


> No. The '84 engine was called the H.O., and it was used in Monte Carlo SSs
> and the Z28. It was the computerized Quadrajet. The 305 Cross Fire was in
> earlier Z28s as an option. Corvette had the 350 Cross Fire in '84. Nothing
> "wrong" with it, unless you really like Corvettes that run in the 15s and
> were no quicker than 5.0 Mustangs in those days.
>
> The TPI was a good motor. I had an '85 Vette with the 350 TPI, then an '86
> Z28 with the 305 TPI, and both were good, although the 305 had a better
> powerband that at least made power to over 5K (unlike the Vette, which was
> all done at 4,500).
>
> Replacing the distributor sounds incorrect, because there was a PCM in the
> '84s (my buddy tried a chip in it, which did nothing!), but I can't say
for
> sure. Doesn't make sense that the distributor would control the car, but
> stranger things have happened!
>
> Ron Porter