Vehicle speed (mph), engine speed (rpm), tire diameter (inches), trans gear ratio, and rear axle gear ratio are all interrelated. If you know four out of five of these values, you can determine what ...
If you’ve ever been on a road where the speed limit feels artificially low or surprisingly high, you’re not alone. For decades, many states have leaned on a single formula to decide how fast cars ...
Vehicle speed (mph), engine speed (rpm), tire diameter (inches), trans gear ratio, and rear axle gear ratio are all interrelated. If you know four out of five of these values, you can determine what ...
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