Torque converter on switch vs auto lock
04-30-2019, 05:09 PM
#1
Torque converter on switch vs auto lock
Ok So I'm pretty sure the more research I do the more confused I get in regards to torque converter auto lock, switch controlled lock etc.
My current set up by the previous owner was on a switch that you would manually lock the converter. I'm now rebuilding my transmission and Vigilante converter and trying to figure out what the best set up for me would be. My other cars in the past have never had a torque converter switch but also didn't have much power compared to my 91 vette that put down 526hp on the engine dyno. I still can't understand why I would need a switch to manually lock the converter? When it was on the dyno last without the converter locked it put down 100hp less than with it locked which makes sense (the converter never locked automatically and was switch engaged only) Is there a way to have auto lock with a manual switch override? I don't want to loose all this power but also don't want it to engage while the car is in overdrive only.
The car is 99% street driven on weekends and cruising around. I would like to have some power running around town but not have to switch the converter on and off the entire time I'm driving.
Any info would be great!!!
My current set up by the previous owner was on a switch that you would manually lock the converter. I'm now rebuilding my transmission and Vigilante converter and trying to figure out what the best set up for me would be. My other cars in the past have never had a torque converter switch but also didn't have much power compared to my 91 vette that put down 526hp on the engine dyno. I still can't understand why I would need a switch to manually lock the converter? When it was on the dyno last without the converter locked it put down 100hp less than with it locked which makes sense (the converter never locked automatically and was switch engaged only) Is there a way to have auto lock with a manual switch override? I don't want to loose all this power but also don't want it to engage while the car is in overdrive only.
The car is 99% street driven on weekends and cruising around. I would like to have some power running around town but not have to switch the converter on and off the entire time I'm driving.
Any info would be great!!!
04-30-2019, 06:30 PM
#2
Team Owner
Member Since: Dec 2000
Location: SE NY
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Cruise-In II Veteran
When I installed a TCC lockup sw I could set it to immediately lock in all gears >1st or lockup normally via the ECM.
I simply jumped a pin on the ALDL to achieve this function.
Sounds like you too have a sw that can be used to manually lock or auto lock the TCC. If so, just leave the sw "off".
I simply jumped a pin on the ALDL to achieve this function.
Sounds like you too have a sw that can be used to manually lock or auto lock the TCC. If so, just leave the sw "off".
05-01-2019, 12:27 PM
#3
Le Mans Master
It depends on rear axle ratio. With stock 2.59 -3.07 ratio TCC can cause some " lugging" because RPM is too low. Tuning to keep converter off until 3 or 4 gear would help.