Quote:
Originally Posted by brick59
Tap shift is not adaptive and that is why it is slower. When a 6l80/6l90 is in normal or sports mode the computer anticipates the oncoming shift and it prefills the clutch packs, when it’s in tap shift it has no way to know when the command to shift is coming so it can’t prepare for the shift. These transmissions are complicated on how they hand off from gear to gear. If your tuner does not understand this, you need a new tuner.
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^^^ Exactly, well said sir !!
