If you have trouble understanding these formulas or need help with your project please give us a call & we will try to help you the best we can. We will try to guide you or point you in the right direction.

 701-483-0050
 701-483-0050
MORE INFO

Garys

   Auto

     Service

 garysauto81@gmail.com  

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
Home Page
RPM
MPH x Gear Ratio x 336
----------------------------
Tire Diameter