Engine/Power - EJ20T (pre-2006 WRX and JDM) There is replacement for displacement, it is forced induction - OEM 2.0 liter turbo engines in the USDM WRX. 90-94 Legacy Turbo EJ22 turbo engines can also be discussed here.

vf34 wastegate

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Old 09-11-2008, 06:58 PM
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vf34 wastegate

so i have a jdm vf34 spec c turbo running at 18-20 psi on my wrx. the wastegate seems to leak at that much psi so i started looking at the Forge Wastegate (stock location) but they say it only works for the vf34 "gdb" not spec c... is there any way to just tighten the spring or something on the 34's stock wastegate??
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Old 09-13-2008, 02:46 PM
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call Paul@ Dbtuned.. he will help u answer ur question..

(916) 791-4900
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Old 09-13-2008, 03:16 PM
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Paul@DBtuned although he's kind of far from San Jose.

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Old 09-13-2008, 03:42 PM
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So you are experiencing boost creep?

Last edited by 03_Impreza_Al; 09-13-2008 at 03:47 PM.
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Old 09-13-2008, 06:13 PM
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dont forget about kevin at autohq. he knows alot about jdm parts.
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Old 09-13-2008, 07:01 PM
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not boost creep, more like boost leak, if i accelerate from cruising, all my boost flutters out, if i am going wot from a stop, it doesnt leak, so basically when im "bogging" or not in a low enough gear, i think i can hear my wastegate fluttering and letting all my boost out...
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Old 09-13-2008, 07:15 PM
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Originally Posted by bayboy
not boost creep, more like boost leak, if i accelerate from cruising, all my boost flutters out, if i am going wot from a stop, it doesnt leak, so basically when im "bogging" or not in a low enough gear, i think i can hear my wastegate fluttering and letting all my boost out...
Has your car been pro tuned or are you running an off the shelf map?
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Old 09-15-2008, 10:09 PM
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i have a spring on my turbo actuator arm

the VF34 wg is garbage !
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Old 09-15-2008, 10:31 PM
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Time to go external wastegate! Might as well, its a better setup overall.
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Old 09-15-2008, 10:37 PM
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thats what i was thinking^^^
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Old 09-16-2008, 09:22 PM
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i think the sound/loudness of an EWG would take away from the clean beautiful burble of my completely catless vf34 wrx... is there any way to tighten the stock wastegate actuator arm or change the spring or something??
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Old 09-16-2008, 09:27 PM
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minibump
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Old 09-17-2008, 12:11 AM
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Have the WG ported.
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Old 09-17-2008, 07:55 AM
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What type of engine management are you using?
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Old 09-19-2008, 12:47 AM
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protuned by eip thru a cobb ap
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