You'll need a twinscroll dump pipe too, and the mounting bracket that bolts onto the up-pipe top flange.

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RS Liberty - Because WRX's are only good for parts...

I'm assuming the ADM STI's are 550cc injectors as well? If so you might need to upgrade. I've got mine pretty much maxed out @ ~24psi in a 2litre. I'd imagine the GT pumps twinscroll is bigger than the VF42 as well.

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www.racewars.com.au

Yeah injectors on an ADM 06 STI are the dark blue top feed ones which flow 550cc, well that's how they are sized in the tune.

Decapped injectors for a 20g are a given. I had my stock injectors at 98% IDC with the VF43 at 19 psi.

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GOLD PIG STI

Cool, yeah GT pumps do a dumppipe to fit as well as the headers and uppipe.

I have a walbro fuel pump in there. looks like thunderbirds are go ^-^

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Twin scroll Pig Bi-Squeeling

i just phoned mark at GT Pumps about this as i have a new GTPS02TM that is yet to go on my car, he said he will supply all needed components (headers dump rear housing) to convert my turbo and car to twin scroll for a mamoth $870

Why the hell wouldn't i do it? (oh thats right i would be cheating, Shhhhhhhh!)

Any reason for wanting to go the GTPS02T instead of their GTPS03T or even the S05T? (just curious)

Mark wont sell the GTPS05T yet i think...waiting for results to come back on a car his given it to for testing.

I think they might be a little too big for my needs.

From what I gather the GTPS02T on 18psi should make 220 - 240 kws with a lot of midrange torque. That will be enough to satisfy me. (maybe)

Any bigger and Id be wanting to at minimum get some forgies in there which puts the costs through the roof for an extra 20 odd killerwasps.

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Twin scroll Pig Bi-Squeeling

cheers for that
still undecided what to do, go your path or get forgies and get the bigger t/s, but 6k for engine out, forgies in doesnt sound appealing :P

just a little bit left field. I am restricted in the compressor housing I can run but the exhaust housing is free. i.e hypothetically would it be possible to mate a vf22 (the biggest compressor I can run) to a twin scroll exhaust housing or am I just pissing in the wind?

Brendon

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Losing is worse than death. You have to live with losing....

a P25 housing off a Vf36 should bolt right onto the rear of a vf22.

But if you can, find a vf42. It has the same size comp wheel as a vf22 but uses the newer 6 blade design which is stronger. And a vf42 is already twinscroll.

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RS Liberty - Because WRX's are only good for parts...