Welding a harness bar between B-pillars - any downside?
Every harness bar thread I've found has been about a bolt in arrangement. I'm wondering about just welding a bar between the two b-pillars. This is on a street/autox car.
I can see a couple of advantages for daily driving too. Connecting the b-pillars must give me some small measure of extra side-impact protection, plus the bar will stop my seat collapsing back in a rear end collision.
For autox I can use it for a camera mount and 4-pt anchor.
My car has no interior so that's not an issue. And I can't imagine a body-to-bar contact scenario (which is why I'd be nervous about a roll bar on a DDer). I assume I'd need them to weld some type of backing plate to the b-pillars rather than just weld the bar to the sheet metal.
Can anyone see a any safety or other problem with this idea? Could the heat from welding actually weaken the b-pillar?
1989 GT - various shades of black and rust