StealthFormula

iTrader: (35)

My car was dyno tuned using LT1Edit and my shift points need to be changed again. Before it was shifting at the stock rpm and it was shifting from first to second at 31mph and we extended all the mph shifts by 10mph and its still not enough. Just wondering if anyone can guide me into what mph a 6400rpm shift would be at for all the gears? My car has the 4l60E with 3.73's.

John_D.

iTrader: (2)

Allowing a little for converter loss, you'll be turning about 52rpms per mph in your 1:1 gear (3rd).

Should be around 40mph, 76mph, 123mph.

How does that compare to what you set it to?

LS1MCSS

iTrader: (18)

This site can tell you what each mph will be. http://www.chevellestuff.com/generic/rpm_calculator.htm

StealthFormula

iTrader: (35)

I cant recall the 3rd and 4th but my 2nd was 31mph stock and is now 41mph and hits the 6500 rpm limiter so I bet your numbers are pretty accurate.