hmm question
 

I've got some sheets of 3/16" mild steel plate left over from building the last house. (Contractor)
Is it thick enough to weld some weld els on & make a turbo, or N/A manifold out of?

Re: hmm question
 

It's fine, just make sure the welds penetrate nicely, and that you don't warp the plate.

Re: hmm question
 

i dunno man thats pretty thin, its only like 30 bucks for a nice head flange

Re: hmm question
 

Or if you have a lot, just weld two together. 3/8 > 3/16

Re: hmm question
 

It is on the thin side, but it will work. Good manifolds use about 1/2" flanges or larger, but 3/16th will work as long as you don't warp it.

Re: hmm question
 

Sounds good thanks guys.
Unfortunately, they don't make flanges for v6 Toyotas.