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12-12-2006, 12:17 PM

#2

Z.Hallett

Tech Regular

Join Date: Nov 2005

Location: Reston, Virginia

Posts: 401

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tire dia. X pi
----------------------------------
(spur/ pinion) X internal ratio of car

this formula can either give you rollout in mm orin. depending on if you put the tire dia. in inches or milimeters.

-Zac

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