RWHP to Crank HP reduction

[Ron Sutton]

That's interesting Scott.

For our race teams, not finishing races due to parts failure was unacceptable.


So we went the other direction. Stronger driveshafts (3"), bigger u-joints (1350's not 1310's or 1330's), nothing "borderline".

[Ron Sutton]

I forgot ... we did run some powerglide automatics for 1 season & did chassis dyno test them.

These ran NO converter, nor clutch, so they were light & designed to lock the gearsets hard. With only 2 light gear sets & nothing else they used less power than typical automatics.

The numbers were 19.1-19.4% difference (loss) from the engine dyno.

But, I don't think we can compare these #'s to the automatics in street cars, even well built pro touring cars.

[Che70velle]

Originally Posted by Ron Sutton

That's interesting Scott.

For our race teams, not finishing races due to parts failure was unacceptable.


So we went the other direction. Stronger driveshafts (3"), bigger u-joints (1350's not 1310's or 1330's), nothing "borderline".

We found this during testing on dynos, not on the track. Same philosophy here.