anyone running a 3071(wg) or 3076(wg)

[kentuckyslider]

on a bottom mount T2 flange. Everyone is tellin me that the T2 won't flow enough to support 450-500whp on the SR. Is 400whp all you can get out of a T2 on the SR? Has anyone actually tried it yet? I really want 450-500whp but I don't think it is worth spending another $2500 for a top mount setup, but I don't want a big turbo with a restrictive flange that's laggy as hell either???

[Emperor_Tha]

the main problem is the turbine becomes restrictive. Another the internal waste gate won't hold steady high pressure and it would spike.

The only way to make 450hp on a t2 bottom is to have a external wastegate welded to the stock cast manifold or a custom manifold.

[Kalypso]

^ useful

[93bluecoupe]

the main problem is the turbine becomes restrictive. Another the internal waste gate won't hold steady high pressure and it would spike.

The only way to make 450hp on a t2 bottom is to have a external wastegate welded to the stock cast manifold or a custom manifold.

a wastegate is a funny thing. see a wastegate's job is to lower boost by re-routing the exhaust around the turbo. so if you are running high boost you are effectively using the wastegate less. there for a small wastegate is perfectly fine at higher levels of boost. but if you have a monster turbo and are trying to run low boost. then you need a bigger wastegate to keep the turbo spinning slower. because you need to flow more out of it. i was running a gt3076rwg in my car at 18lb with no problem. never had it dynoed so not sure on the power number. so no you dont need a external to run that setup

[vanquish2]

the main problem is the turbine becomes restrictive. Another the internal waste gate won't hold steady high pressure and it would spike.

The only way to make 450hp on a t2 bottom is to have a external wastegate welded to the stock cast manifold or a custom manifold.

We've got a 3076wg now....up from a 2871r....both bottom mount. He is right about the restriction

however....we made 400whp easily with the 2871 and the 3076 feels about 450-475ish compared. We haven't hit the dyno yet but we had an s13 with 526whp so we know what it feels like.....

[inkslingers13]

2 people are running these turbos. broadfiled and im not sure the other guy. look around. the thread is called (Time for a upgrade). its a clean *** build

[kentuckyslider]

His is a TS top mount. I am lloking for results on a T2 bottom mount with internal gate.

[vanquish2]

on this t2 mount it is ALL top end.....it doesn't hit hard like the 2871 either

[inkslingers13]

His is a TS top mount. I am lloking for results on a T2 bottom mount with internal gate.

well your the one asking about 3071r and 3076r T3 foot prints... used with EXTERNAL gates...

[vanquish2]

Well actually his title is 3071(wg)

the wg part of the part number is a reference for internal wastegate.....and in his initial post he did ask for T2 flange

[hugogos22]

They actually make a t3 bottom mount manifold .

[Dugi]

ok it's been like almost a year since i've posted on here. just been too busy. here is a like of a thread of mine zerothread?id=287823i haven't done much since to the car. just pulled out the engine to give it a check since the built. after that i'll be boostin around 22-24 psi too.

small wg will do but the main problem is u will get boost spike alot more then if u had a bigger wg. u will have a more consistent boost with a bigger wg. i have the 41mm tial wastegate and just works fine.I will put up a new thread of my built and give some new dyno numbers. i'm shooting for 450-500whp and a 10s 1/4mile run on slicks.