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Old 03-03-2006, 09:48 PM
Skippy Skippy is offline
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Join Date: Dec 2005
Location: Carson City, NV
Posts: 3,850
MPH = (rpm x tire diameter)/(336 x axle ratio x trans gear ratio)

Tire diameter is in inches.
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Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 400,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 22,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.
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