[Tom W]

Sorry for the urge to rant but ... Yes, I think it's a bad idea.

I will never understand the desire to take a car to the track, but not want to drill 2 holes in the floor pan. You'll risk your life and your car by crashing into a wall but worry more anout potential resale value than your safety?

You can do what you want for most DE groups (PCA being a big exception) but no racing organization feels that attaching it to the same spot as the seat is a good idea. No harness manufacturer (that I'm aware of) thinks that what you are describing is a safe way to mount the belts either.

While a lot of thought and engineering has gone into the belt design, you want to throw it all out the window by using some soft iron in a situation where strength and integrity are required. The force of decelerating your weight plus the seats weight at (potentially) 20-50 g's is substantial.

Use a proper race seat and drill the two 5/8" holes in the proper spot(s) for the sub-belt you will use. Use the proper eye bolts and backing plates. When you want to sell the car, remove the bolts put some new rubber down and seal it with silicone and put the carpet back on top.

That's my $0.02. Please don't take the response personally, it's meant in general and simply reflects my views to the question you asked.