tools for the drag racer, muscle car enthusiast, or any other sort of gear head or petrol head (uk vernacular)

 

speed / rpm / gear ratio visual calculator
interactively and visually calculates your engine's rpm from all the variables and without the need to fill out an ugly, clumsy, stupid form.

 

1/4 mile ET and HP visual calculator
calculates your estimated 1/4 mile elapsed time, hp, and mph.
again, this does it all without stupid, ugly-ass forms or spreadsheets.

 

tire size / profile visual calculator
calculates tire size and profile, as well as wheel size, offset, and backspacing.