Most over used statement of 2009.

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No more GC8, sad face.
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Dude, if your gonna go the full hog then best you buy yourself a new bigger turbo to go along withcams/headers/etc.

The vf34 is only designed to flow so much air through its 47.9mm comp wheel (same diameter as a vf35).
Adding the p20 exhaust housing just increases the rated flow to that of vf22 specs... ~480cfm @ 18psi.

a simple vf34-p20 is a cheap and simple turbo upgrade. It gives you increase in top end performance, without sacrificing too much bottom end.
If you want to keep your vf34 turbo - then may i suggest to upgrade the comp wheel to that of a PE1820 spec.

the PE1820 uses a dual BB catridge, and the turbo is essentially a vf34-p20 with a wheel upgrade...and a $2000 pricetag.

Product: PE1820F
Manufacturer: Power Enterprise
Turbine Specifications:
Housing A/R: P20Bore Size: 25.0mmTurbine Wheel Blades: 11
Turbine Wheel Inducer: 53.0mm
Turbine Wheel Exducer: 48.0mm
Compressor Specifications:
Compressor Wheel Blades: 6+6
Compressor Wheel Inducer: 52.5mm
Compressor Wheel Exducer: 70.0mm
Center Section Bearing: Dual ball bearing

VF-22


PE1820


This upgraded wheel transform the turbo to push out 630cfm @ 1 bar. (manufacturer rating).
I have heard that Adelaide Turbo Services (A.T.S) can upgrade your turbo for under $400.

So basically, if your gonna do it - then do it properly. It means that you wont have to boost your turbo high to acheive good power.

I didnt go this route coz its not what im aiming for. I'm keeping the stock 550cc injectors, and will push boost till they start running out. Whatever power/torque that makes then so be it. But the turbo defintaly has the potential to acheive some higher numbers if your prepared to push it.

With the added water/meth - think of it as essentially another injector squirting higher octane fuel. So with the combined injectors and meth spray - it will give me some more room to squeeze some more boost into the engine and dial some more timing into it, and see where it goes...

will turbo tech do something like this tode?

dont know mate, never looked into it much.

baisically i should be aiming for a pe1820 the difference between the pe20 is significant, some headers and cams, injectors and tune i think that will probably break the 300 mark

better speak to tristan & chris smith about the pe1820, im sure they will tell you to steer clear!

might make my way down to turbo tech this afternoon and go have a chat with the boys

Why not go for one of the other 10 billion proven 300hp combinations out there?

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[COLOR="Gray"]550Nm off a 2L... Just wish it was in the dak dak...[/COLOR]

how come? laggy?

or compressor prob too small for wheel...

Just to repeat whats been said 100 times already!

TD05 20G = GTPS02 = 300hp with supporting mods... = win?

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'04 E46 S/C M3 Coupe