Race Engine Forum UK

Here's a wheel frequency calculator, use it to test your suspension coil rate selection.

http://www.racingaspirations.com/wheelfrequency.php

It is a great tool to help you make an intial coil rate selection if you're scratch building a car.

Note: This is by no means the be all and end all in this area, it is merely intended as a simple aid for the novice / amateur (competitor).

Thanks for looking,
Huw