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#1
29-01-2009, 07:57 PM
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How much boost on a VF34
Hi guys,
i just got a wrx 02 wagon with a vf34 and its running 20psi i was just woundering if thats a "safe" tune because i wouldnt want it blowing up soon lol i tryed asked the owner but he got it with the mods/tune already done. Thanks 
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#2
29-01-2009, 08:06 PM
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how safe it is has nothing to do with how much boost it is running.
Put it on a dyno and get someone to check AFRs, timing, knock. Kato the nutter ran 29psi I think on his vf34 on a stock WRX engine.
__________________
RS Liberty - Because WRX's are only good for parts...
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#3
29-01-2009, 08:07 PM
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Hey dude,
By any chance is it dark metallic blue with the darker 03 wrx wheels? If yes, it's my old car and I had Allstar Garage do the work on it, along with the Verso ECU reflash and the tune is safe along with the mods with it.. If not the same car then I cant comment  but 20psi is the max I would want to go on a vf34/ej205 combo for safety..
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MY02 WRX STi - sold :( '12 Golf GTI
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#5
29-01-2009, 08:50 PM
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With the right supporting mods 20 psi can easily be done pushing to 22. Depends how long you want the vf34 to last. Cheaper to throw them away then getting them rebuilt anyway.
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Honda Hannspree Edition CBR 600 RR - SOLD Yamaha FZ1N - Purchased
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#8
30-01-2009, 05:13 AM
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I believe from what im told they are inefficient to service but rebuildable.
__________________
Honda Hannspree Edition CBR 600 RR - SOLD Yamaha FZ1N - Purchased
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#9
30-01-2009, 08:24 AM
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Smash in 2 bar. Done.
In all reality 'boost' is not the tune. 1 bar can be dangerous with the incorrect tune, so don't just go winding in boost without the fuel etc to compensate. In all reality, once you start going past 1.5/6 bar you start to just blow hot air, so you don't get the most gains in power per psi boost your are upping it (if interested look at how the efficiency curves of the compressor map drop off significantly as you smash more boost in).
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[COLOR="Gray"]550Nm off a 2L... Just wish it was in the dak dak...[/COLOR]
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#10
30-01-2009, 09:36 AM
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Quote:
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...He said Smooth Bee the skins is fat I don't beg cause I'm not in begonia I dress warm so that I won't catch pneumonia My rhymes are stronger than ammonia I'm a diamond, you're a cubic zirconia
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