RusherRacing
15+ Year Contributor
- 142
- 1
- Jun 21, 2006
-
Yankton,
South Dakota
I have been looking at a way to increase the head room in my 1G. Its a full road race car. It was also originally a sunroof car. The previous owner welded in a plate over where the sunroof used to exist but left all the original support structure. My theory is to remove the roof skin and the old sunroof support structure. Welding in an X Brace made out of 1" 4130 into the unibody structure at the top of the A and B pillar. Then riveting in a piece of smoked lexan as the roof skin. This would gain me roughly 1/2" and should increase the torsional stiffness of the car.
My questions are has anyone done this or something similar. Or has anyone even welded in an Xbrace into there roof, and measured the increased torsional stiffness.
Would this be considered a Partially tube chassis according to SCCA? I am adding support but really not removing anything structural. This would be for FP solo II. Also how would this affect me in NASA SU.
Is there any flaws with this plan from someone experienced working on DSM's.
Ryan
My questions are has anyone done this or something similar. Or has anyone even welded in an Xbrace into there roof, and measured the increased torsional stiffness.
Would this be considered a Partially tube chassis according to SCCA? I am adding support but really not removing anything structural. This would be for FP solo II. Also how would this affect me in NASA SU.
Is there any flaws with this plan from someone experienced working on DSM's.
Ryan
