SuperSlow02

iTrader: (16)

simple question...swapped to a TH400 after my tune was done. Car is a turd off the line. Is a retune in order?

Photochop

iTrader: (74)

Yeah typically 6 speeds require less initial timing down in the lower RPMs because the flywheel/clutch assembly is much lighter and easier to turn than a fluid filled converter. When I swapped my 4L80 into my car from the previous 6 speed I experienced this too. Have your tuner look at the file and retune accordingly.