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11-05-2008, 06:21 PM

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Join Date: Jan 2005

Posts: 336

MPH X 336(WHICH IS THE CONSTANT) X REAR GEAR RATIO / TIRE DIA.

THIS FORMULA WILL WORK NO MATTER WHAT MPH YOU PUT IN.BUT THIS FORMULA IS WITH A TIGHT CONVERTER.A REAL LOOSE CONVERTER WILL OBVIOUSLY BE MORE RPM.