Transmission Gurus/Tuners question...
#1
Race Director
Thread Starter
Transmission Gurus/Tuners question...
With a 93 Automatic, we have the TV cable and a couple electronic tables that we can change, at least in CATs tuner.
To get the car to shift on its own down, kick down, while passing etc, what electronic tables within the tune can be changed to make this happen. Mine doesnt do it from 4th to 3rd all the time, as I think electronic paramters and speeds are being met. No definitive speeds it does.. Sorry.
I see TCC lock/unlock%TPSvs Speed. Is there a set definition for these tables, or do people modify them?
ALso, for TCC Unlock Prevention Speed Threshhold, mine was set to 64mph. I think that it why mine lugs down and locks, at WOT.
I adjusted my ASR/TV Cable according to FSM with torque wrench at ASR etc, checked all my pressures according to FSM and its right on.
I have a 4L60, 2800 single clutch Vigilante and 3.73 gears.
To get the car to shift on its own down, kick down, while passing etc, what electronic tables within the tune can be changed to make this happen. Mine doesnt do it from 4th to 3rd all the time, as I think electronic paramters and speeds are being met. No definitive speeds it does.. Sorry.
I see TCC lock/unlock%TPSvs Speed. Is there a set definition for these tables, or do people modify them?
ALso, for TCC Unlock Prevention Speed Threshhold, mine was set to 64mph. I think that it why mine lugs down and locks, at WOT.
I adjusted my ASR/TV Cable according to FSM with torque wrench at ASR etc, checked all my pressures according to FSM and its right on.
I have a 4L60, 2800 single clutch Vigilante and 3.73 gears.
Last edited by krackenvette; 06-28-2015 at 09:36 AM.
#2
Le Mans Master
Transmission is not electric shift. Cable controls shift points. ECM controls TCC. TCC should not engage during WOT. Changing governor may allow for higher forced downshift speed. With the 3.73 rear axle ratio TCC really should not cause issues during accel.
#3
Race Director
Thread Starter
I know the Transmission isnt electronic shifting, and isnt supported by ECM to do so, like 94-96. But, there are settings in there that control the TCC and I was curious if those can be changed to effect the transmission shifting due to pressure changes etc when converter is unlocked.
92/93 with ASR are different too, as 92 and 93 are different valve bodies.. Electronically they are a bit different.