paulmasoner

iTrader: (1)

I was doing that in 2/3 gear well before the WG opened...

auzoom

I cant guarantee it but yes, my belief is that its the 3582. If someone can give me something to look for I will give it a go.

It fits, the issue is that its pretty close to the firewall so be prepared to put heat shield on the firewall to try and redirect some of the heat, or try and find a way to direct some air flow around there. Having said that, I guess the closer to the engine the more room but then you are bringing the heat to the engine.

Your RPM requirements are fine. Externally wastegate it if you can.

HTH

Andrew

MazdaManiac

iTrader: (3)

The only turbine housing that will fit down there is the GT30/t28 frame.
That means you are limited to the GT3071/GT3076 - the latter only if you have a turbo builder that can fab the housings.
A GT35 turbine will not fit, regardless of what you do with the motor mount. Its diameter is larger than the available space.
I suppose you could replace the floor pan...

auzoom

From what I understand, the Compressor housing is replaced with one that gives more clearance but retains the same wheel.

MazdaManiac

iTrader: (3)

The compressor and the turbine are two separate pieces of the turbo.

rotarenvy

so can you machine a GT30 turbine housing to accept the 68-84 gt35 wheel?

auzoom

I understand that but am missing the point you are making. Is that its probably the turbine housing not the compressor housing that is being changed?

EDIT: Sorry I see what you are saying, the turbine diameter is to large to fit there. So my question is, whats there that makes you say that? And thats a question out of pure ignorance not being a Smart ****.

Dirt_Nasty

iTrader: (2)

subbed.

paulmasoner

iTrader: (1)

it's been over 2 years since i've messed around down there with a turbo, but the floor pan is whats in the way. if you were to alter it, you would have more room, but not much

carbonRX8

iTrader: (1)

That is not true. That turbine fits. On the turbo that I currently have in my possession (given that I paid for it. Generally, you receive what you pay for) it is the compressor (non-Garrett) that is tight. This is, of course, not using the greddy manifold.

rotarenvy

^ exactly. most people are trying to use the greddy manifold for simplicity.

MazdaManiac

iTrader: (3)

Uh, yeah.

If you are fabbing a manifold from scratch, there are some "special sauce" versions of the 35r which can be cobbled together that will fit.

auzoom

Rights so you are saying that the GT35 wont fit with the Greddy manifold? Well I have a custom manifold.

auzoom

My floor pan is intact, but it is extremely tight. To the point I have to install some heat shielding there.

rotarenvy

I'd like to see around 9psi boost around 3000rpm without sacrificing the top-end.

there are turbo suppliers that list the gt3071 compressor and t25 housings as packaging options for the GT3582.

if you stuff a gt3582 core into these small housings how will it affect the spool/flow potential?

can you compensate for the small turbine with a big waste gate to reduce back-pressure to improve the top end?