Topic: Roll cage on a BOF car with questionable body
I have rusty floors. That's an understatement. Frame is good, though.
Trans tunnel is OK, driver side floor is repairable, passenger side is a total mess.
Normally I'd weld a plate to the frame through a large cutout in the floorpan, and then build a box back up to the body. However, on the passenger side there's not much to weld to.
- give up and lay down a 2x5ft sheet metal "patch" and stitch it to the tranny tunnel on one side, the frame on the other, and cut the oem floor off
- weld the cage to the frame and just throw some POR15-soaked e-glass over the passenger side to cover the holes
- some other option
My problem is further complicated by the fact that my firewall and rear deck need to be covered in metal because they're fiberglass and I have a non-fia fuel cell and an engine on either end of the car. In your experience, what's the best way to address that? Aluminum flashing and pop rivets? Or would a large sheet of thin-gauge steel work better?