I've got a new 4L60E Performabuilt Stage 2 tranny and I'm running a vigalante 3400, 3:73 gears on a ms4/stage 2 headed car. The people who tuned my car are using HP Tuners and the tranny setting have been returned to stock parameters. I was wondering if anybody had a simular setup and how they have the tranny parameter setup. Right now the way its setup under part throttle the car is changing gears way too quick. Usually makes to 3rd gear before I go 20 ft. I don't want to affect line pressure. Anybody help me out?

 

May be a stupid question, but is your speedo corrected for the 3.73's? I raised my 1>2 and 2>3 shift speeds by 4 mph everywhere under 31% throttle, and seemed to stretch them out a little.

 

Yep the speedo corrected. I bought an aftermarket tranny and I misunderstood the dealer when he said return all tranny setting back to stock. What he meant was stock line pressure. Matter of fact I got one just like you have. Same cam, smaller 3200 Vigalante Converter. Car stock was 2.73s. If the car moves over a foot at lite pedal you take off in 2nd cause its already changed gears.