05-27-2007, 11:05 AM
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CC Member
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Join Date: Feb 2006
Location: Scottsdale,
AZ
Cobra Make, Engine: Superformance, Roush 427R-095, Pro Systems carb, 2" headers, Buckshot Racefab side pipes, 10s off idle start
Posts: 705
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Not Ranked
I'd figure out how much wheel HP the car has, estimate trap speed in the 1/4, use tire height and rear gear to calculate and have 4th gear a couple hundred RPM lower than your shift point at the end of the 1/4 mile.
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