I still <3 this article... too bad it won't apply to my enduro car...

 

In line with the article me and my brother are working on setting up his car and mine for scca events.

We effectively used Mustang GT springs on a Focus application. Cut mustang springs and stock shocks.

Incredibly It handles twice as good as the stock suspension. We simply used the theory behind heavier cars, higher spring rates and basic linear spring rate theory. The car has improved launching and lateral handling, no more boat rolling when turning.