SmoothGS

A friend of mine is going to weld me up a manifold. What size elbows and T's do I need. I'm going with schedule 40 stainless.
Its for my b18b and going to be a log style for my internally gated T3.

TIA!!

beerbongskickass

1 1/2 inch

jiujitsukid

I don't know everything about steel but I am in the process of building a manifold and 40 schedule is really thick. My dad works at a steel mill and he says that 40 is way to thick that as long as the runners are not really long 10 schedule is fine. But use what you want but like beerbong said 1 1/2 and also 40 would be harder to weld.

SpankedYA!

Schedule 40 is for steel weld els. Schedule 10 for Stainless steel.

SmoothGS

So sch 10 stainless in 1 1/2'? I didn't know sch40 was for mild steel....

Thanks.