Steve40th

What mph should I set in TUNERCAT for converter to lock and unlock at?. 396LT1 2800Rpm Vigilante and 3.73 gears in Corvette. 4L60/700R4.Right now its set at lock at 52 and unlock at 42. Not sure if those speeds are right. I do have abit of sbudder in the 45 mph area at cruise. Tune is good.

IDriveChevy

iTrader: (5)

I feel like it should lock at 45 and unlock at 44, it shouldn't be shuddering at 45 accelerating if its set to lock at 52