ok i know some of you will prolly tell me this is dumb for many reasons but if you were going to make your own turbo exaust manifold what kind of tubing/pipe would you use and where might i find it. my guess is that regular header tubing would probably crack or distort under the high temps of a rotary and turbo. i want to make a custom manifold because i will be turbo charging an n/a and there is not enough room under the n/a LIM for the turbo. any imput will be appriciated
thanks a lot
-dan

 

Search turns up these threads here.

https://www.rx7club.com/showthread.p...ifold+material

https://www.rx7club.com/showthread.p...ifold+material

https://www.rx7club.com/showthread.p...ifold+material

Basically run at a minimum a base flange of .5" ( I wouldn't, some do) I run .625" or .75" depending on what's available. I have nice flanges in stock if needed.

Tubing personally no less than 304 schedule 10 pipe. You can run 321 if you want to benefits over 304 are negligible. If you were building a all out race car and competing (or have some secret cheap access to stainless) then maybe 321 or inconel is for you. Turbo flange should be no less then .5" as well.

Keep those things in mind and you can't go wrong.

 

thanks a lot zero r, i searched but i must have been searching the wrong terms cause not much came back, but that really helps, thanks again -dan