Engineering tools

Calculators we use on real builds

The same relations we use to size intakes, manifolds, and headers — free to run on your own numbers before anything is fabricated.

Engine & Turbo Airflow Calculator

Model boost, compressor outlet temperature, and airflow across the RPM range to estimate power and torque, with a virtual dyno graph you can export.

Size a tuned primary tube — length for pulse scavenging at your target RPM, diameter for exhaust gas velocity.

Size injectors, supply line diameter, and pump flow from a target horsepower, BSFC, and fuel type — gasoline or E85.