Todays date is 10/2/2014


Calculate your Rear End Gear Ratio Needed





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Gearing for the strip


To find the ideal gear ratio for drag racing use your RPM at peak HP.
Example: If your max HP is at 6300 RPM use 6300 for the RPM.

Gearing for cruising


To find the ideal gear ratio for cruising use your RPM at peak Torque.
Example: If your max Torque is at 3300 RPM use 3300 for the RPM.





Calculate Rear End Gear Ratio needed

Enter RPM:
Enter Tire Diameter:
Enter MPH:

Please Input The RPM,Tire Diameter and MPH