Thread: GTIR Turbo Manifolds

The 2876 is a pc of crap. Stay way away from that thing. Serious mistmatch.


The 3076 is not a problem at all with a internal wastegate if you get the correct rear turbine housing which Incon use to sell. They even upgraded the size of the wastegate flap. I will try and see if I can find picks of it.

well if allen ever gets over his newly developed subaru illness and gets another gtir i may try and persuede him to go with the t2, 3076 ig. His last 3 have been like bloody ground hog day, 3071, 3071, 3071...lol

will probably agree then that the 3071 sucks compared to the 3076...lol

thinking about it there must be someone else i could convince

Before we get way off topic, here are some pics. Feel free to comment, question, criticize, or share anything, sorry about the pics...I don't have the best digi cam:

I do agree with you on that both the 3071 and 3076 will do better with a T3 turbine housing.

Most of the other companies dont make a proper T28 based turbine housing for these turbos.

I will try my best to show you want the Incon Turbine housing looks like it is a complete diffrent looking think compared to the other T28 back sections. They have a pattern on it and HKS was first to try to make something close to it but could not quite do the hole thing or they would get sued.


This is the Nissan - HKS back section that is sold now.

Pic below is from a SR20VET turbo I had.



The incon turbine back section is completly divoreced so the turbine wheel is completly seperated and the housing is off centered to run a larger waste gate flap and hole.

End result no boost creep. Getting this turbo is next to imposible. I have 2 of them but not selling them.

hachee1 can you tell me if the ports are larger than a exhaust gasket because if they are the same size the pipe overlap inside is going to hurt flow.

I know why they put it in the port so they get a better weld with no cracking at the flange but to do it that way they have to make the ports larger to compensate for this procedure.

Hacheel, would you send me that manifold so I could take a look at it?

i get what your saying, something like this

Likethemovies never sent any gaskets with it, just the 4 studs already on for the turbo. You want me to mail it to you?

Yep you got it my friend but it looks more T28 based than that turbo. I have run this turbo a few times internal wastegate and it did not boost creep at 20 PSI with 420 WHP so 450-470 WHP at 25-27 PSI should be no problem.

I love the Incon turbo.

The same GTBB37 in a standard T28 housing might boost creep so I can see why you guys switch out to T3 turbine housings on the 3071s. If you are willing to go T3 turbine housing then just get the 3076 turbo, trust me you will not be disapointed.