Originally Posted by
marshall_mosty
Guys,
There are two 5/8" grade 8 bolts holding four 20# plates. I have this setup on both sides of the car. There is a 0.100" steel backing plate welded to the inside of the car and the bolt head/washer combo is welded to that. I have nylock nuts, loctite, and torque seal on the nuts holding the ballast plates, so I can use the torque seal to easily do a visual for tightness. I'll invite anyone to crawl under the car and bitch...
If I get a bunch of backlash, I can add a "ballast safety loop" out of steel strap, welded to the car. This ballast, for me at least, will be considered permanent because it was a bitch to install.
I DID try to convince the AI Directors to allow me to build a ballast "tub" that would fit through a hole in the floor, so the ballast would be contained. The directors didn't like the idea and thought bolting it under the car would be fine.