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RPM
MPH x Gear Ratio x 336
----------------------------
Tire Diameter
Speed In MPH
RPM x Tire Diameter
----------------------------
Gear Ratio x 336
Tire Diameter
MPH x Gear Ratio x 336
----------------------------
RPM
Gear Ratio
RPM x Wheel/Tire Radius
----------------------------
Speed in MPH x 168
CFM Calculator
Cubic Inches x RPM x VE
(Volumetric Efficiency %)
----------------------------
3456
Example
350 x 6000 rpm
----------------------------
3,456 x 0.85 = 516 cfm
Horsepower
Torque x RPM
----------------------------
2,252
Torque
Horsepower x 5,252
----------------------------
RPM
RPM
MPH x Gear Ratio x 336
----------------------------
Tire Diameter