"The BIG BOV thread" (Where all bov question threads get merged) - Page 627
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This is a discussion on "The BIG BOV thread" (Where all bov question threads get merged) within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; I just bought a Turbo XS WS-HYB BOV and at times it seems to compressor surge and other times leak ...

  1. #9391
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    Turbo XS WS-Hybrid BOV minimum boost??

    I just bought a Turbo XS WS-HYB BOV and at times it seems to compressor surge and other times leak boost at low rpms. Im only pushin 14psi of boost is that not enough for this BOV to blow off properly??

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  3. #9392
    Resident meany-rator 06wrx4me's Avatar
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    Take it off and sell it, aftmkt BOV not needed at 14 psi.
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    send it back

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    get rid of it, it can only hurt.
    Tuned by Jorge at P&L, 240.83whp 239.60wtq at 14.8psi on 2.0L with stock td04 (But doesn't run)

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    BOV vs BPV

    Ive posted some mod questions before and got some feedback regarding the BOV option vs leaving the stock BPV. While I agree with leaving the stock unit, I still want the sound......I am looking at Perrins unit which has the option to recirculate the air rather than release it into the atmosphere. Does this totally eliminate compressor surge, and if so will it still give me the sound I want. Will it affect gas mileage as ive been told about the BOV

  7. #9396
    Pro Manscaper Mikie13's Avatar
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    Quote Originally Posted by 3nisuber View Post
    Ive posted some mod questions before and got some feedback regarding the BOV option vs leaving the stock BPV. While I agree with leaving the stock unit, I still want the sound......I am looking at Perrins unit which has the option to recirculate the air rather than release it into the atmosphere. Does this totally eliminate compressor surge, and if so will it still give me the sound I want. Will it affect gas mileage as ive been told about the BOV
    Perrin's aren't bad...but if you want the best of both worlds...a 50/50 is the way to go. Personally...keep the stocker if you aren't over 22psi of boost on your turbo and remove the intake elbow or get an SPT/K&N short ram intake. Intakes will enhance the sound of the stock BPV tremendously.

    You shouldn't see any compressor surge unless you are over 22psi on your stock BPV anyway. Gas mileage shouldn't be hurt...

    Other reputable brands to look at include Turbosmart, Worx Tuning, Go Fast Bits, TurboXS
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    thanx

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    question about removing the BOV

    Hello I just bought a 2002 wrx sedan with 51k miles on it and the only after market modification is a bov, now everything i have read on here says that getting a bov isnt the best thing to do for a stock wrx. So i was wondering what the name of the piece that would go in place of the bov is? I want to buy one off of e-bay Im just not sure of what the stock piece is called. Thanks!

  10. #9399
    Registered User wrxisthebest's Avatar
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    Its called a Bypass Valve.... i dont know about one on ebay tho!

    just trade ur BOV for a BYpass valve..i just did it~!
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  11. #9400
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    where or who did you trade it with?

  12. #9401
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    Oh and would it be bad to get an upgraded bypass valve? or should i stick with a stock one for now?

  13. #9402
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    It's pretty easy to trade. There's lots of people out there that aren't smart like you and put BOVs on their cars despite people telling them it's bad. Post here and on nasoic, and any other subaru forums you can find, and offer to trade.

    Stick with the stock one. It'll do the job just fine even if you modify the car.
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  14. #9403
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    Quote Originally Posted by benjer View Post
    Oh and would it be bad to get an upgraded bypass valve? or should i stick with a stock one for now?
    it wouldnt be bad... just unneccesary. your turbo is making 13.5 lbs of boost and the stocl bypass is good up to like 23 or 25

  15. #9404
    Registered User pondo's Avatar
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    FWIW, I bought my 02 WRX 6 years ago and have been running a TurboXS type-RFL BOV on it for about 4 years now. The BOV is open to the atmosphere

    RFL stands for REAL ****ing Loud. Let off the gas at 4k rpm and people will turn around from up to 3 blocks away. My engine has no hesitation, I pulled the plugs out at 60k miles and they look like they could go for another 40k miles.

    Back in the day there wasn't a ton of "hate" on BOVs and honestly I don't see why it's started now.

    I will admit though, the BOV is way too damn loud. I'm sick of people asking me in the car "WTF was that?" or "Learn how to drive stick man, you just ground 2nd"

    In the next 6 months, I'm either picking up an 05-06 STI or an 03-04 M3. If I get the STI, its nothing getting a BOV.
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  16. #9405
    Geriatric Ginger Mod Rogan's Avatar
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    how's those AFR's lookin between shifts?
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