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
nice looking setup. smart on there part to offer the weights too and design it so you have to or should buy theirs. Dunno what weight costs... 22 a weight seems steep though and THEN you have to ship it. ALways pros and cons... I'd like to see a better pic, but I AM impressed at first glance.
Anyone use this?