1/4 Mile ET / MPH Calculator
Use your power and weight to calculate your ET and MPH
Supercharger RPM Calculator
Use this to calculate the RPM at which your supercharger headunit is spinning.
Headunit - Step Up Ratio - Max Supercharger RPM
Paxton 2200SL - 3.6:1 - 53,000rpm
Paxton 2200 - 3.6:1 - 60,000rpm
Vortech V2 - 3.6:1 - 53.000rpm
Vortech V3 SCI - 3.6:1 - 52,000rpmVortech V3 SCI - 3.6:1 - 52,000rpm
Vortech V7 YSI - 3.4:1 - 65,000rpm
Vortech V7 YSI - 3.4:1 - 60,000rpm
Procharger P1SC- 4.1:1 - 62,000rpm
Procharger D1 - 4.44:1 - 65,000rpm
Procharger F1 - 5.4:1 - 70,000rpm
Procharger F1A - 5.4:1 -74,000rpm
Procharger F1C - 5.4:1 - 74,000rpm
Procharger F1R - 5.4:1 -68,000rpm
Procharger F1X - 5.4:1 - 72,000rpm
Factory Coyote Balancer Diameter 6.78"
ATI Coyote 20% Balancer 7.88"