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Old 07-07-2010, 10:07 PM   #73

camaro1's Avatar
Drives: 550+RWHP 2010 camaro
Join Date: Sep 2007
Location: wisconsin
Posts: 1,588
Originally Posted by Wacker View Post
I know the HD trucks use the same stock verter and one would have to assume they demand full lockup all the time for towing. Otherwise the converter would'nt last a month.

this is right from the gm service manual,, i think finding the o/s that uses full lock up will be the key to integrating it into out tcm:

A torque converter with an electronically controlled capacity clutch (ECCC). ECCC was developed to reduce the possibility of noise, vibration, or chuggle caused by TCC apply. In RWD 6-Speed transmissions, this slippage can range from 0-50 RPM. Full lockup (0 RPM slip) is still available on some applications. TCC may apply in 2nd, 3rd, 4th, 5th, or 6th gears. The specific TCC apply points and the amount of clutch slippage are determined by a number of operating conditions, including throttle position, vehicle speed, gear, as well as specific vehicle application. Transmission fluid temperature will also affect TCC apply points.
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