I had taken my car down to Steve Kan to have him tune my 7, and they gave me some pointers that I should do to make it better. I had to reroute my oil return line from the turbo to the front of the block, which I did then ran into a problem. The waste gate is now right in the way of the oil line that needs to connect to the block. Here is what I am wondering, if I have a duel waste gate exhaust manifold now and change to a single wastegate manifold will I need to retune the car? or should I just look for another duel wastage exhaust manifold? Ideas would be nice and where is a good place to look for this item? thanks for the help.

Darin

 

Can you post photos? Maybe someone can come up with a way to route the return line without the expense of a new manifold. Also what is wrong with using the rear return?

Back to your question, I dont think you would have to retune as long as you use the same wastegate spring and boost control setup.

 

Yeah pictures will help a lot. I'd definitely recommend staying twin wastegate if you can.

 

I am currently using the rear return on the block but it is a long travel for the oil and the line has a slight rise so the oil has a small issue returning. So I am debating on going to a single wastegate or is it best keeping a duel wastegate set up. I will see if I can get some pics.

 

would it be easier/cheaper to fab up a custom oil return hard line to fit the front iron?
That's what we did with my car, otherwise the drain line wanted to touch the manifold.

 

Just fab up a new drain to ether iron. Changing wastegates/manifolds is dumb just for a turbo drain. Not to mention all the work for the new down pipe and intercooler setup with a new manifold.

 

I am leaning towards new exhaust manifold now due to the person who made mine cheated me out and did bad work on the vmount and the manifold. I would not mind getting his work off my car. I am interested in Glease man and his work. looks good and he is part of this forum. I will support that if anyone has had any work done by him.

 

Who did the work?

 

a local guy who was starting up a performance shop I seen him do other exhaust manifolds for cars and he asked if he could do mine to help get his name out so I trusted him and bad idea. no one on this forum at all. this was his first time touching a rotary

 

Got it, I bought my car out of Fargo... And let's just say there was some shady stuff done to it by a very well known "performance" shop up there!

 

My guess is TintMasters out of Fargo. I don't trust them as well. The owner hurt our areas SCCA autox a few years back. shady is about right.

 

I dont know anything about them, I have heard the owner knows his stuff, but he needs to work on who he hires. My car was a rats nest of wiring. Almost everything that was change was changed with speaker wire. MAP sensor, Fuel Pumps, even injector connectors. Not to mention burning up the rear fuel pump harness, building an exhaust manifold out of pipe that is WAY to small, and just drilling a hole in the top of the fuel pump hanger to run the new hose through from the pumps.

I think they should stick to stereo installs!

 

What size pipe was the manifold?

 

I dont remember, but the OD of the pipe was 1.5".... My dump tubes on my new manifold are bigger than that.

 

1.25" pipe then. Yeah, not good.