Re: RE: Hi-Perf. INJECTORS

From: Bob Tom (tigers@bserv.com)
Date: Tue Aug 08 2000 - 21:21:45 EDT


At 07:44 PM 8/8/00 -0400, you wrote:
>Just so that everyone knows, I run 30# injectors in my truck. It works O.K.
>but it is a little rich, but no bogging. I will either be going to 24# or
>getting the computer reprogrammed. By the way Bob (Tom), where did you get
>yours reprogrammed? Mark Kuzia

I haven't as yet. I bought the custom computer from a DMLer last winter.
It was thought to be a '97 computer (main attraction for me) but turned out
to be a '96 MP PCM with programming (by Ron Zimmer) that included:

Good Features for = all delays removed, calibrated for 160F tstat,
my truck 5600 rpm shift points, 6500 rpm rev limited,
                    999.9 mph speed limiter (I can hallucinate,
                    can't I?, more advance in closed loop)

Not Applicable for = 1000 rpm idle (for undersized pulleys), calibrated
my truck for 30# injectors, calibrated to not detonate
                     for blower (forget how many lbs, 10 I think) and for
                     150 hp juice (maybe 175 hp juice),
                     calibrated to pass in the rpm range for emission testing.

In closed loop, the truck felt awesome with the 24# (about 80 mpg for 1/2
tank)
and very strong with 19# injectors. Spark advance output read by my scanner
showed more advance than in the '96 MP PCM. Pulse width was longer than
'96 PCM
as well. With 24#s, going to WOT from any rpm resulted in bogging. With
19#s,
no bogging at WOT.

Problem was that, because of the blower/juice calibration, timing was retarded
to 16-19 degrees all the way down the track at WOT as opposed to the 25-31
degrees
with the '96 MP PCM.

I am almost 100% that I'll have the '97 MP PCM (CA version) reprogrammed
over the
winter (probably by Zimmer but there may be a couple other sources which,
at this
time, are in the 'iffy' stage.)

Bob. Ont, Canada.
'97 Dakota CC, 5.2L, 4x2, 3.92 SG, auto., 4265 lb.
PB: 14.737 @ 91.75 9.364 @ 72.95



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