Edelbrock MPI kit

[steve ravet]

Carl Summers wrote:
> 
> Hi All,
[deleted]

>     There is an idle fuel map (0-1600 rpm) that is set to shut off at 3
> mph or 5% tps,,and the transition from idle to the main table was never
> calibrated,,,so I shut off the idle table and remapped the main then
> turned the idle table way up and remapped it,,,after setting the mph and
> tps back to stock it ran alot better but still had an occasional
> surge,,,,I beleive this was caused because they did not correct the
> injector offset vs battery voltage,,,since the problem was only on
> decel, I moved the mph, for idle table, to switch at 15 and left the tps
> alone,,this eliminated the surge,,,,maybe I didn't look hard enough but
> it appeared they did not change the EGR vs base pulse constant,,,I
> beleive this was contributing to the shaking at light throttle....Anyway
> I could not afford to spend a whole lot of time on it since I was doing
> it for free....

One comment here, A TPI chevy that I used to have would shut off the
injectors during deceleration if the throttle was completely closed.  If
you left your foot off and coasted down to idle in say 2nd gear, there
was a surge when the injectors came back on.  

>     I have been doing alot of mods to Whipplecharged trucks and have
> thought of putting a intake,heads,hyd roller cam,blower,larger T.B. kit
> together.  And if I ever plan to CARB approve this I think I might have
> to alter some of the stock code,,,,this is my question,,,,How do I go
> about finding the type of processor in these computers and where do I
> buy the assembler package so I can start to reverse engineer the code?
> (No, I can't do this myself,,,,,yet,,,,but freinds can help)
> The computers in question are:
> 1227747
> 16146299
> 16168625
> 16197427
> One other question,,,the 8625 was used exclusively in 93 350 4L60E and
> is called an ECM and the 7427 was used from 94-95 and was called a
> PCM...in the 350's I can install a 94 chip into a 93 computer and have
> seen no change in anything(except the 94 chip has a much better trans
> program) they have the same plugs too....anybody know????anyway enough
> babbling,,,if anyone can help with the assembler package, I would sure
> appreciate it...
> Thanks,
> -Carl Summers

--steve


--
Steve Ravet
International Meta Systems
http://www.imes.com
steve at imes.com