I definitely need a BPV and stress NEED! - Page 2
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This is a discussion on I definitely need a BPV and stress NEED! within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; lol ok just looked... saw the price... next! Wayyy out of my price range....

  1. #16
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    lol ok just looked... saw the price... next! Wayyy out of my price range.
    2012 WRX: TurboXS DP, AEM CAI, TP stage 2 tune

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  3. #17
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    Quote Originally Posted by Mikie13 View Post
    Forge is widely regarded as being very good quality.

    I'm at 20.5 at Stage 2 on my STI...
    yeah, I have heard this since day one that I joined here.
    2012 WRX: TurboXS DP, AEM CAI, TP stage 2 tune

  4. #18
    zax
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    Fluttering at low boost is normal.
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  5. #19
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    Quote Originally Posted by zax View Post
    Fluttering at low boost is normal.
    it flutters in all ranges now though
    2012 WRX: TurboXS DP, AEM CAI, TP stage 2 tune

  6. #20
    Master Baiter EJ257's Avatar
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    Quote Originally Posted by Methodical4u
    it flutters in all ranges now though
    Wastegate flutter is what happens with a BCS. It's the boost control system doing what it should.

    If you're annoyed by the sound, go MBC/hybrid.
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  7. #21
    Registered User WrxPower's Avatar
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    I have upgraded to the turbosmart bpv. It's working good for me. I'm also stage 3 by TP. I can send you pics of bpv on car if you want a visual of what it looks like on the ic.

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    Quote Originally Posted by EJ257 View Post
    Wastegate flutter is what happens with a BCS. It's the boost control system doing what it should.

    If you're annoyed by the sound, go MBC/hybrid.
    I have a 3 port... they do the same thing? I just realized you said BCS' so I guess that would include the 3 ports as well.
    Last edited by Methodical4u; 06-20-2013 at 05:20 PM.
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    Quote Originally Posted by WrxPower View Post
    I have upgraded to the turbosmart bpv. It's working good for me. I'm also stage 3 by TP. I can send you pics of bpv on car if you want a visual of what it looks like on the ic.
    Yeah, i'm s3 TP as well.
    2012 WRX: TurboXS DP, AEM CAI, TP stage 2 tune

  10. #24
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    Quote Originally Posted by Mikie13 View Post
    GD stockers can handle upwards of 21-22psi reliably. But as it gets higher, you have more chance to leak.
    GD? The original BPV on the WRX has no problem with 21 - 22 psi.
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  11. #25
    Master Baiter EJ257's Avatar
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    Quote Originally Posted by Methodical4u
    I have a 3 port... they do the same thing? I just realized you said BCS' so I guess that would include the 3 ports as well.
    Yes.

    Wastegate flutter isn't a problem, unless you take offense to the aesthetic aspect of it.
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  12. #26
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    Right. While I can't argue that the 3G EJ255 could benefit from a beefier BPV, I think you'll find that the "flutter" noise will actually increase if you go with a stiffer BPV. Of course, you could use a lower pressure spring, but then what the hell would be the point of spending $200 on a BPV at that point?

    As Matty mentioned, an EBCS will only exacerbate the flutter. I get the surge at venting during low boost let-off (<10 PSI) since the pressure differential is inadequate to open a well-tentioned BPV fully even with an MBC. This is not quite "compressor surge" in the technical component, but it is air entering back through a spinning compressor wheel. It will not do damage to your compressor wheel at the pressures we are running.
    Last edited by zax; 06-20-2013 at 07:18 PM.
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  13. #27
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    Quote Originally Posted by EJ257 View Post
    Yes.

    Wastegate flutter isn't a problem, unless you take offense to the aesthetic aspect of it.
    Ok then, thanks for the info.. that's less money I need to spend I don't care much about the noise.. it just seemed like it did it more often, but with gas prices rising and a baby ALMOST here I have to keep my right foot out of it for a while. Still getting about 26 mpg avg. though. Not to bad. I wonder if the GS tumblers would help that?
    2012 WRX: TurboXS DP, AEM CAI, TP stage 2 tune

  14. #28
    zax
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    The sound? No. The TGV deletes would have no affect on the flutter.
    2015 CWP WRX STi ... But how did I get roped back into an EJ motor?!
    Zax's utterly unimaginably stock 2015 STi build thread
    Zax's Shaggin' Wagon Build Thread Now tuned for 99% pure Unicorn Jizz!

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  15. #29
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    Quote Originally Posted by zax View Post
    The sound? No. The TGV deletes would have no affect on the flutter.
    No, would it help with mileage?
    2012 WRX: TurboXS DP, AEM CAI, TP stage 2 tune

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