Quote:
Originally Posted by Keckdl
I am getting ready to do a full rebuild my transmission and was thinking about putting in a TCI constant pressure valvebody, what is your opinion on these? I cannot find any reliable info on using them or true benefit. Do you have any insight or experience with these?
Thanks,
Dan
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The Front Pump will wear out prematurely form operating at near 100% Duty Cycle all the time, 700R4/4L60E/2004R Variable Displacement Vane Style Pumps have several moving parts compared to a TH350/TH400/4L80E Fixed Displacement Gear Style Pump.
A Billet Pump Rotor is absolutely necessary with Constant Pressure, The stock cast pump rotor is not designed for a 100% Duty Cycle.
http://www.ckperformance.com/View/70...PUMP-ROTOR-KIT
The trans will shift hard under light throttle, This beats up the Splines & Hard Parts in general........It is really bad on Chain Style Transfer Cases!
The only good a Constant Pressure VB will do is allow you too adjust the TV Cable for Shift Timing.....Incorrect TV adjustment will not burn frictions with this VB.
Fine tuning a 700R4 to Upshift/Downshift exactly when you want makes Carb Tuning look easy.