Trans. tuning Question
08-13-2010, 01:35 AM
#1
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Trans. tuning Question Here is whats going on. I have a built 4L60E trans (shift kit,racing clutchs/kollen steels, upgraded sprag, beast sunshell, Billet accumulator piston, corvette servo,3-4 wide clutch band) with a 3200 FTI stall. I have put around 800miles on the trans. I went to the track recently and when the car shifts from 2nd-3rd gear under WOT it hits the rev limiter for a split second before catching 3rd gear. I tried it on the street and it does the same thing. I am wondering if anyone else has experienced this and could help out. The car is a basic bolt on car with a built 10bolt w/3:73 gears. Thanks in advance for the help.
08-13-2010, 03:55 PM
#4
It can be tune related and it can also be a mechanical calibration in the transmission.
The transmission applies third and releases second during the 2-3 shift.
Several things can cause what you said is happening. Servo travel, 3-4 clutch clearance, third apply feed hole size compared to the band release feed hole size which is altered with the shift kit.
The transmission applies third and releases second during the 2-3 shift.
Several things can cause what you said is happening. Servo travel, 3-4 clutch clearance, third apply feed hole size compared to the band release feed hole size which is altered with the shift kit.
