Automatic Transmission Issues - Ford Mustang Forum
 
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post #1 of 3 (permalink) Old 11-19-2013 Thread Starter
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Automatic Transmission Issues

I am wandering if anyone has had and solved this issue?
I am running a Kennebell 2.1L kit on my 2000 Saleen. Problem is My RPM's go up so fast, That my Transmission is set to shift at 5600, and I still hit the Rev limiter at 6400 before the it can complete the 1-2 shift.
I am thinking about buying a PA valve body and having it installing it this winter is there any other parts I should consider at the same time. However I do not want to end up with a shift so harsh in breaks things as this is a daily driver in summer.

I plan on changing to a Drag Radial to help with traction, maybe even Strange adjustable struts/shocks.


2000 Mustang Saleen
Kenne bell Supercharger 2.1L compete kit
Fluidyne Radiator
21st Sentry Heat Exchanger
Bassani High flow mid pipe
PA Competition Series 4R70W
Ford Racing 3:55 Gear set
400 RWHP and 415 FT LBS of torque
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post #2 of 3 (permalink) Old 11-19-2013
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Heard nothing but good things about a J Mod valvebody, I'm not sure how the one PA offers compares. But either one should offer higher line pressures for quicker, firmer shifts. Last time I did any digging around for JMod valvebodies there was a guy selling them somewhere for like $100+ core. There's also diy instructions out there if you're comfortable with that sort of work.



2001 GT Convertible
/1967 Coupe
All the usual bolt-on's /200 I6, C4

And a few Explorers too... 2008 4.0 XLT 4x2, 1996 XLT 5.0 4x2, 2003 Sport Trac XLT 4.0 4x4
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post #3 of 3 (permalink) Old 11-19-2013
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There are several easy to find others, but here's a pretty good diy write up....

Jmod how to, a DIY shift kit write up for your 4r70w

And another one....

http://www.crownvic.net/tech/4R70Wnotes.pdf

J-Mod is basically just a shift kit, but the main difference between it and others is it is per Jerry Wroblowski who is the man at Ford who designed and engineered your transmission. And as one article states, "If you can walk past a window without licking it, then you can J-Mod your own valvebody", significantly less expensive than an aftermarket valvebody.


2001 GT Convertible
/1967 Coupe
All the usual bolt-on's /200 I6, C4

And a few Explorers too... 2008 4.0 XLT 4x2, 1996 XLT 5.0 4x2, 2003 Sport Trac XLT 4.0 4x4
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