Quote:
Originally Posted by LS short box
As I understand one more reason to use the the lock up is if you have a stall converter the lock up will stop any slippage and reduce heat in the trans.
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You are absolutely correct. If it's not slipping it's not making any heat.
However, for decades converters lacked any lock up feature.
The coolers were designed for such slippage.
The newer transmission unlock when floored and this is when they make the most heat. And they still make heat when pulling, especially when stuck.
So even now with less heat, under normal conditions, the high heat scenarios still exist and have to be compensated for.
I have not even mentioned the slipping that occurs when the newer transmission slip the clutch inside the converter purposely using Pulse width technology.
Or the lock and unlocking that sometimes takes place, on some models, during a shift.
All of this makes a compelling argument to transplant an "Electronic" shifted transmission as the computer takes care of all these functions seamlessly.
It makes sense at least when you have to have an ECM for the motor functions anyway.
Cheers