4L60E SHIFTING @6200RPM WOT only in D, has shift kit TM & shift speed zeroed out to cancel adaptive learning.
upshifts set at 1-2 @31mph 2-3 @63mph 3-4@115mph
3.73 gears.
Race only car so 3-4 not used
have searched and looked at other tunes on Holden crazy.Nothing close.
question is (at last),
How do I work out the optimum shift MPH for 6200 revs? is there a formula using A4 ratios v rear gears v rpm. before I get to the track for reasons below.
The only log I have secretly managed( No computers in our race class) showed 1-2 shift 39mph@5679rpm??, 2-3 shift 80mph@6017. This was with shift points at 6000rpm Trap speed was 12.3@111mph at 5606 revs.
Any help would be appreciated
thanks
Al