How to Calculate Engine RPM vs. Gear Ratio - Roadkill Extra

It’s time for more math class with David Freiburger on this episode of Roadkill Extra. You’ll learn how to calculate the change in engine rpm at any given speed after you’ve changed rear-axle ratio, tire diameter, or transmission ratio.

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• #autos_vehicles
• #how_to_calculate
• #engine_rpm
• #gear_ratio
• #rear_axle_ratio
• #tire_diameter
• #transmission_ratio
• #compression_ratio
• #horsepower
• #drag_racing