Calculators

Weight Reduction Performance Calculator Calculate the massive impact that removing weight has on acceleration, power-to-weight, and “Effective HP.” Current Vehicle ...

Dyno Correction Factor Calculator Calculate the SAE J1349 correction factor for your dyno run to standardize your power figures. Test ...

Pro Top Speed Calculator Find your vehicle’s limit by comparing mechanical gearing against aerodynamic drag. Power & Aerodynamics Peak Horsepower ...

Turbo Size Calculator Find the right turbocharger frame size based on your engine’s target power and intended use. Engine & ...

Gear Ratio & Speed Calculator Calculate engine RPM at specific speeds or find your theoretical top speed. Ratios Transmission Ratio ...