I know that an exhaust leak on the manifold will cause less exhaust pressure for the turbine, but how big of a crack or leak is necessary in order for this to occur? I was having lots of problems spooling my t3 on an h22a but once I took off the manifold, I saw numerous cracks. Here's a pic:


Anyway, I'm having a new manifold made with better material so hopefully I won't have this problem again.

 

What size turbo were you running?

 

"...spooling my t3 on an h22a..."

even with a small exhaust leak, an h22 should throw some crazy exhaust gasses through a t3

 

obviously

their are alot of different sizes of a T3 as we all know..

Jeff

 

that manifold looks like the walking dead.

holy crap its ugly!

 

im seeing the turbo running right into the radiator with that manifold

 

not with an h22 motor is slanted far enough back so no prob

 

I should post a pic of my first custom manifold, lol
Picture square pipe stock with runners, ughhhh.
Might me ugly, but works.
Hell, look what some OEM's get away with!

 

hahaha, thanks for the compliments guys! She may not be very pretty but she's got personality? hahah, anyway, I'm getting rid of this one and just cleared the radiator, but my ac lines on the other hand ended up burning to a crisp!!! As for the turbo, I think it's a .48. The t3 has a .60 on the compressor and it's off of a merkur. Again, that's only one of the cracks. It is the biggest crack that almost went entirely around the tube and was 1mm - 2mm in width! Anyway, there were a few more cracks as well, about 5-6 in total! I used mild steel and this was a big mistake for me I guess. My new manifold should be better though. Here's a pic of it's partial construction. The tubing is the exact same as the rev hard manifold. Same stamps and all!!! Hopefully this will appeal to those who have called my old manifold ugly!! hahahaha

 

what kinda materials .. where you get it form and whats the sizes ? tahnks