roll cage
i see for 2700 b vehicles and over they require 1.75x.090 wall
what would the reason for 2x.150 ?? those are scca rules right?, also nhra says 1 5/8 dom .118 minimum wall thickness in a bend, so you would need 1-5/8 .134 to make that, if you went 1.75x.090 it would not pass nhra, would 1.75 x .150 be the best bet to be good all the way around??
jake
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