Forgot one little detail:
>EngineSpeed = 168 x RoadSpeed x Ratio(s) / EffectiveTireRadius
>
>Where
> EngineSpeed is in rev/min
> RoadSpeed is in miles/hour
> Ratio(s) is the product of all applicable ratios (i.e. axle x transfer x
>tranny..)
> Effective Tire Radius is the measurement from the center of the axle
> or hub to the ground.
TireRadius (or diameter) is in inches.
sorry,
je
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