Quote:
Originally Posted by BrahmaBull1990
Thanks for the reply. Sorry I am confused. You're saying I should be shifting at around 7k RPM (assuming redline is around 7.2kRPM)? My torque and HP are highest right at 6k RPM; if this is the max in the current gear, how could the torque be higher in the next when I am upshifting?
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Stock limiter is 7,400 most tuners raise to 7,500.
Shift 50rpm before limiter. Shift at the last possible moment to still not hit limiter/fuel cut but rev as high as possible.
I specified mechanical torque to the wheel.
Not torque or hp on a dyno graph.
Mechanical torque is calculated after all gear ratio, wheel size etc… are factored in.
You want to shift gears at the RPM when the current gear you are in has LESS mechanical torque at the wheel than the next gear will have at the RPM it will land in after shifting.
On most cars the mechanical torque to the wheel is always higher in the numerically lower gear all the way to rev limiter. You’d need to make like 400ft lbs at 5k and 200ft lbs at 6,500rpm to benefit from short shifting. A 20-30% drop in torque is more than made up for by torque multiplication through numerically higher gearing.