Ill get some pics at work tomorrow or friday
DOM is a specialized seamless tube used for rollcages and tubular structures, suspension components etc...
its an acronym for drawn over mandrel, its a process which insures regularity in wall thickness and strengthens the tube.
ERW is your run of the mill tubing/pipe that is seam welded.
The one we made goes all the way around the strut towers... so like a full circle, you'll have to see the pics... If I got plates cut I would just have them utilize the two bolts like the sparco units.
I hand cut the plates for ours as it was just one piece.
The way I look at it, the aluminum units are more for a look factor, you'll be hard pressed to find an aluminum style stress bar on race car that has a bend in it... I have seen them in applications that allow for a straight tube w/o bends
The hinge thing has also been gone over countless times, Its a bad deal, the only perk is having the ability to quickly access motor parts, but the way I look at it, if you're pulling the intake manifold or something to that nature, you are not really in for a quick repair anyway, so what difference does it make to undo 4 nuts at that point...
My other reasoning for not using all 3 bolts on the shock tower, is that when one has caster/camber plates, you loose your settings by undoing all 3 bolts... This has become a pita for our race car, but once again, we rarely remove the unit, but its just nice to not have to go through setting up the car again after doing engine work.
Ill try and get some pics for you guys
