I understand what you are saying about the rpm's but I have an automatic. What
difference does Mopar Performance make in the program for the automatic. I
noticed that there are two different part #'s for the auto and the manual but
will I be losing some performance since I guess it wouldn't let the engine over
rev anyway. I tried to call Mopar Performance about it and as usual all I got
was a busy signal. How high will the computer let the auto rev (like if you
manually shift through the gears) before it forces the tranny to go to the next
gear? If anyone else even has input it would be gladly appreciated.
Jeff Durling
'96 red sport rc - 318 - auto - k&n clone - 180. thermostat
Jon Steiger wrote:
> At 08:51 PM 1/14/99 -0500, you wrote:
> >Second, I have talked to Terry Delong from Pro Finish and he has given
> >me some advice as to fixing up my engine but one has me confused. He
> >says that when I install the Mopar Performance Computer I also need to
> >put in heavier valve springs to compensate. ( and while there go ahead
> >and install some roller rockers) I plan on doing these mods but want to
> >do them when I get around to installing a new cam and ported heads. (
> >I'm not rich just seriuos about fixing up my dak) I want to get the
> >computer pretty soon around the same time that I am getting my exhaust.
> >I already have a 14" k&n clone installed and that made a big difference.
> >Any input on this would be great!
>
> I think what Terry was probably referring to is the fact that the MP
> PCM moves the rev limiter from something like 5400rpm up to something like
> 6300rpm. That'll allow you to rev up there, but its still not safe; you
> need a better valvetrain so it doesn't self-destruct. I think what Terry
> meant was that you should get the springs if you plan on revving that high.
> (I only go to 5,000 right now though; a fairly stock Magnum won't make much
> power up that high.)
>
> >
> >Third and last, how much performance will I lose if I keep my 3.55
> >rearend? I want performance but I also want to be able to take trips and
> >whatnot without going to crazy at the pump. (the 93 octane for the
> >computer will be bad enough)
> >
>
> I've got 3.55's, and they're decent. With my 5-speed, they're enough
> to holeshot someone pretty good. :-) I do plan to upgrade to 4.10s
> someday, but not for a while. There are other mods that you can do
> which will increase power and not affect the fuel bill quite so much.
> IMHO, you might be better off doing some of those first, and saving a
> gear swap for later...
>
> -Jon-
>
> .--- stei0302@cs.fredonia.edu ------------------------------------.
> | Affiliations: DoD, EAA, MP Race Team, NMA, SPA, USUA. RP-SEL |
> | '96 Dodge Dakota v8 SLT CC (14.58@93.55), '96 Kolb FireFly 447 |
> `----------------------- http://www.cs.fredonia.edu/~stei0302/ ---'
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