a friend of mine is gonna make a turbo mani for me, so i went and bought the piping for it but he says he thinks it's too thin ( looks a lil bigger then 1/8th thick) so how thick should the piping be to hold up to the high temp.?

 

Its a shot in the dark (since your not specific on anything) but that should be fine, just brace the turbo. For some reason people think your supposed to build manifolds with 8 gauge schedule 40 industrial pipe, to ensure maximum manifold weight and heat soak.

 

i like to use 1/2" wall pipe for my race manifolds in reality if the walls are a bit over 1/8" it will be plent just like whitey said put a brace on the turbo and it will be fine. and remember thinner walls retain heat in the exhaust better thus giving beter performance.

Beau

 

Are we talking miold steel here or stainless. You never said. Either one should be fine, but its actually a little thick if its stainless.

 

it's stainless but my buddy said i need bigger than an 1/8th...would if it's less then an 1/8th? would it be able to handle the heat?