I'm going to start building my exhaust manifold soon and need a exhaust port flange, my friend is getting some made at a local water jet shop but the guy at the shop is lagging so i just wanted to know if anyone has any already made. if i cant find one im going to attempt to cut one with my band-saw.

 

I'm pretty sure racing beat has them.

 

This guy has some stuff.
http://www.eastcoastparts.com/

 

Holy ****! Notice the billet rotor?!?

~Mike...........

 

his flange is mild steel, but that billet rotor is disgusting.

 

https://www.rx7club.com/rotary-car-performance-77/pics-info-pri-show-orlando-605880/

 

Holy ****! x2

 

thanks guys, im looking for something 5/8" - 3/4" thick in stainless.

even if that billet rotor doesn't work its still cool that people are still trying new new stuff.

 

You might want to ask if he can do stainless. He is already tooled up for the shapes.

 

try this man
http://mazdatrix.com/e3.htm

 

thanks guys, i got someone on it.

 

Why so thick??

 

^
a thicker flange is harder to warp than a thinner one.

i just printed out the actual size template of the flange i designed on the comp and fits perfect so im going to e-mail the file to the water jet place today, ill post pics when i receive the flange.

 

^^^ True... but it is also heavier and will also expand more when at operating temp as well.

 

it will be fine, did you have a bad experience using SS?

 

Talking to a local builder of manifolds he does not use SS as he has had manifold studs pull out. He uses mild steel flanges to SS tube.

 

If you use a crushable manifold gasket and DONT over torque it, you wont have to worry about expansion yanking studs out. Personally, I make my own gaskets from anealed copper.

~Mike.............

 

^
nice!, ive been thinking of making one in .090", whats a good amount of torque when using a copper gasket?