Quote Originally Posted by TStiles View Post
Here's a system that Drago sells :

http://mazdaracers.com/store/product/57-ballast-system/

I just use the ballast plates left over from my Spec Racer Ford. Bolts to the floorpan with a big backup plate. I guess I'm going to need to figure out something else when / if I build an STL motor and the weight goes up
Brings up a good point on all the added weight to rear wheel drive cars in STL. I think you'll see a movement to a regional version of STL with a lower weight for rear wheel drive cars....