Replaced Dist ign system with SDI system, and computer running very different

[Bruce Plecan]

From: Roger Heflin <rah at horizon.hit.net>
Subject: Re: Replaced Dist ign system with SDI system, and computer running
very different


>I am going to have to see what the gas mileage.  Does anyone know if
>having the timing changed would cause this kind of differences in fuel
>usage?

If the improvements are enough to be reflected inna lower cruise
TPS, then I'd expect to see a change.  Now, with that being said,
if the BL/INT changes alot then it may not be so much.  Low cruise
gets quite complicated when ya mix in BL/INT IAC counts.

Your setup, does it use a crank attached disc?
With Hall effect switches?,
Does the module look to be a gm unit like off a v-8 caddy?.
Matter of fact are there any numbers showing on things?.
Curious minds and all
Cheers
Bruce

  The car sounds the same, and I did some tests, and power is
>pretty close to the same.
>
> Roger
>
>