Resources / Free tools

The garage
toolbox.

Field notes 001 / 2026

Work out the numbers.
Get back to the build.

Land speed. Engine building. Drivetrain.
Fuel system. Drag strip.
Built for your next change, in the garage or at the track.

Free to use + No sign-up

Show your work

Good numbers start
with good inputs.

Every tool includes its formula, source, and assumptions. Use measured values where you have them. Example inputs are here to show you how it works.

Theoretical speed is a gearing calculation. Fuel batch math is a mixing calculation. Neither sets an engine tune.