gearing changes and top Speed for everyone!

So I must have been turning 9200 RPM with a stock Viper, that would put me below 100HP accouding to the dyno sheets???

Actually I just saw your worksheet (LazyBastard)and it makes more sence now. If I was actually running 8750 with 5% overdrive it works out.

Cool, great tool guys!
Overdrive is bad right?
 
Aftermarket helix cut for overdrive will give up to 7% overdrive. Adding a speed sheave like the ones Hauck sells together with an aftermarket helix may give as much as 15% overdrive. Then again clutch effiency drop the more overdrive you put into the clutches, and you will need more HP to compensate to pull your new gear ratio, and if your engine can pull it you'll gain top speed.
 


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