Roll Cages: Chromoly VS. Mild Steel

CHEATHAM said

yes i migd it it can be done and its a street car only so i dnt wana hear nhra says this and that about mig welding c/m. i called professional circle trak chassi shops who build c/m chassis and they mig as well and they take alot more abuse than a drag or street car will ever see

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Exactly. I think in terms of the NHRA's stance it is more the fact that there are many fewer home TiG welders than MiG and by specifying TiG you remove the possiblity of poor welding. Penetration is the critical factor. Not the source of heat or material. I've seen some frightening Mig welding before. Certainly not anything I'd place my life on... And that's really what we're talking about with safety stuff.