I was looking at that thread about the full fox frame and it got me thinking. Not about getting one of those, mind you. I just kept looking at it and the different parts.
I was thinking about stress areas in my coupe. Since I’ll have coil overs in the rear, I thought more about that upper shock mount.
Maybe replacing it with a new box that welds deeper into the subframe wouldn’t be a bad idea? Much heavier gauge than factory too. I‘m strongly leaning towards replacing the shock mount. Plus an additional tube between the upper mounts since the full weight of the car will rest upon those and transfer a bit of twist under hard acceleration? Since I’ll be replacing the uca mount with tubing, I don’t know if that’s really necessary. It’s just a few inches away from the shock mounts. Yet the new X-brace inside the cabin will have a strut going to the shock mounts.
I luckily came across some heavy gauge flat steel that I can make gussets, backing plates, rear upper shock mounts maybe out of.
I’m thinking the IRS adds a crapload of lateral support for the subframe as long as I do a hard tail and maybe a hard nose on it.
@Hoytster didn‘t you do something with the front mounts of your IRS? It seems to me that to eliminate all bushings from the IRS to frame couldn’t be anything but good.
Help me think here guys. Tomorrow the IRS will be out and disassembled and the rear mods really begin. I’m starting by removing the factory upper control arm mount and replacing it. Speaking of that, do y’all think I need more than just a tube welded between the rear subframes? Like angle supports welding from the tube to a lower are on the subframe. Would that Just be a waste of material and add weight, or be helpful?
I’m taking a hard look at those dang torque boxes too. Remember, there won’t be any movement of the lower IRS mount like there would be with a control arm. Maybe it could be redone, maybe completely?