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MPH calculations

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Old 09-17-2007, 05:23 PM
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Default MPH calculations

I have searched and thought I had the correct ratios for my AP2 but I must be wrong. Are the following correct: Final drive 4.1:1 First gear 3.133, Second 2.045, Third 1.48, Fourth 1.61, Fifth .942, Sixth .763???

If they are correct , I get First 46@8000, Second 70@8000 which does not match with published data.
Thanks for the help.......Rich
Old 09-17-2007, 05:36 PM
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http://www.turnzero.com/technical_resource...gear_calculator
Old 09-17-2007, 05:50 PM
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Thanks negcamber. My formula must be wrong.
RPM*Dia(inches) / ratio*336 = MPH
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