Ive been running IDP tunes for a few thousand miles now on the softer shifting no matter what power level I'm in. I whent drag racing the other night and ran 6 passes which resulted in some slipping afterwards. How hard is the Firm lock TCM tune on a stock trans? Its basically more line pressure correct? Idealy Firmer lock would be better for the trans on the extreme power levels?
Trans Tune
- Thread starter MINK
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Sequential6.4L
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If your gonna be running the high HP tunes you need to run the firmest setting.. the soft shifts arent gonna hold your tranny together.
O2ShootTheJ
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yea if you're running high HP tunes or driving the truck hard you need firm shift setting on. Soft shifts running a truck hard are gonna wear your trans
