Quote:
Originally Posted by killer69
not sure where you can get it but the size depends on what rules your trying to meet
NHRA for a "Roll cage" is 1 5/8 x .083 CM or .118 MS
for road racing it is more dependant on the car weigth but most likley 1 /34 x but i would double check that spec.
also if using it for NHRA it MUST be TIG welded
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Thats funny.. if you use Chrome moly for any areospace application it must be welded with an oxy acetylene torch, or the weld must be annealed if tigged....