I dont work on manifolds hardly ever which means i have little experience fabricating them, i can weld them alright just not the fitment (meaning how to route the runners). Well a friend ask me to reroute a runner on a ebay manifold he bought for his turbo. He wants the intercooler piping to come from underneath, so basically the cold compressor housing needs to face down as far as it can, which it looks like in the picture.

Ive thought alot about trying to get the runner to go behind the turbo like the other runners, but that would mean i would have to make pie cuts, which i dont have a proper saw to make pie cuts with. Also the angle would be really weird. Hard to explain the room there is between the turbo housing and the flange to the head, there is really little room. So what you see in the picture is the best way i see for making this runner, trying not to make it to long. I am using 304ss, 2" o.d., and 0.065" thickness, just wanted to use the same size tubing like the other runners used to make the manifold. There is room between the runner and the compressor housing, but very little, i think if this works out, i may work with this route and make more room. Also the turbo is able to come off and be put on with out getting stuck from the runner. so i guess my question is, is this ok, or should it be routed a better way? My friend said if he has to he will get everything hot temp coated.

Sorry if pics suck, i took with my cell phone, didnt have my camera with me.








Edit:

Here are a few pics of the room there is to work with, if i were to route the runner behind. I guess it is possible for someone like me to do, but would be very challenging.

 

Is there a particular reason he wants it that way?

 

No, he really doesnt care how its routed or looks, But i do.

 

I'd keep the compressor outlet out of the exhaust manifold

 

so you would try to go behind/to the side of the turbo? I may try tomorrow, see if im able to.

 

I'd clock the outlet 90 degrees clockwise from the front

 

Instead of trying to pie cut the outlet (which i'm thinking is what I gathered from your post) just grab some pre bent EL's. When I did mine I hade alot fo 90' EL's and just cut them in half if I needed a 45' or less. Might serve the flow a little bit better. Hard to tell exactly what it is you're going for or what it is your asking. To be perfectly honest I would try just making a new manifold if your only option is routing the exhaust pipes around/ right next to your compressor. All you're doing is inducing more heat soak.

 

Also, have you considered flipping the turbo 180'? I know the outlet would prolly be the opposite way you want it but I think i'd rather deal with creative intercooler routing.