"The BIG BOV thread" (Where all bov question threads get merged) - Page 758
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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; In all seriousness though have you read the big BOV thread? An atmospheric BOV will do you no good and ...

  1. #11356
    Registered User GarrettKoonsman's Avatar
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    In all seriousness though have you read the big BOV thread? An atmospheric BOV will do you no good and potentially cause issues. Unless you are at a high enough boost level that your OEM piece cannot handle it there is no need to waste the money. When you do reach that level stay away from ebay parts in every facet of your car, they are junk and a disgrace to your car. When that time comes buy a high quality BPV (not BOV) and install it with new gaskets.
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  3. #11357
    Registered User Mitch89's Avatar
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    Quote Originally Posted by GarrettKoonsman View Post
    In all seriousness though have you read the big BOV thread? An atmospheric BOV will do you no good and potentially cause issues. Unless you are at a high enough boost level that your OEM piece cannot handle it there is no need to waste the money. When you do reach that level stay away from ebay parts in every facet of your car, they are junk and a disgrace to your car. When that time comes buy a high quality BPV (not BOV) and install it with new gaskets.
    Im just worried about when i go stage 2 if the boost spike is something to worry about and if i should change out the stock.. ive heard the stock is only good up to so many psi

  4. #11358
    Registered User GarrettKoonsman's Avatar
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    Quote Originally Posted by Mitch89 View Post
    Im just worried about when i go stage 2 if the boost spike is something to worry about and if i should change out the stock.. ive heard the stock is only good up to so many psi
    You just mentioned concerns that were answered in the post you quoted. Step 1. Read the BOV thread. Step 2. Read up on the hundreds of threads about newer WRX/STI models that have BPV's capable of lower psi. Step 3. Read the hundreds of threads concerning different BPV's and their quality. Step 3. Decide if you will be at the power level that requires an aftermarket BPV. Step 4. Buy a quality BPV. Step 5. Install it properly with a new gasket and proper clamping technique. Step 6. Observe the car's behaviors and possibly even datalog to make sure the BPV has not caused any issues
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  5. #11359
    Pro Manscaper Mikie13's Avatar
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    BOV's Anonymous...your 6 step program. Pre-program step...acknowledging you have a BOV problem
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    Gold Member lokey's Avatar
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    I recommend the Forge BPV - full recirc, subtle, solid, and no performance issues.
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  7. #11361
    UnBanned Sinister's Avatar
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    TiC's time attack car uses the stock BPV at like 25psi
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  8. #11362
    Master Baiter EJ257's Avatar
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    Quote Originally Posted by Sinister
    TiC's time attack car uses the stock BPV at like 25psi
    Modified OE one? They're also likely not using the plastic valve from the '08+...
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    yes... modified 02-07 one.
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  10. #11364
    Registered User ExceedingLife's Avatar
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    Question What BOV should i get for my 02 wrx?

    right now im running around 320 hp in my car i have a wide variety of upgrades.

    I'm currently thinking about getting a Turbo XS RFL bov

    I'm open to suggestions and if there is anything particually cool about it let me know.
    I heard about a HKS bov that you can change the sound i wanna look more into that.

  11. #11365
    Master Baiter EJ257's Avatar
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    Is your OE valve leaking? If not, you're better off sticking with that...

    If you must get an aftermarket valve, consider recirculating valves. Look at Tial, Cobb, or Forge.

    If you must get an aftermarket valve, and you want to be obnoxious by VTA without reason, look at Tial / APS / Cobb.
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  12. #11366
    Registered User ExceedingLife's Avatar
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    right now i currently have the stock valve on and there is nothing wrong with it i'm just doing it to add a little bit of noise to my car also it may give me a lil HP

  13. #11367
    Master Baiter EJ257's Avatar
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    Quote Originally Posted by ExceedingLife
    right now i currently have the stock valve on and there is nothing wrong with it i'm just doing it to add a little bit of noise to my car also it may give me a lil HP
    If your stock valve isn't leaking, an aftermarket valve will not benefit you other than sound. In fact, on a MAF-tuned car, a VTA valve may actually decrease performance.

    If you're looking for power, list everything that's done to the car...
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  14. #11368
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    I have Tial 50mm BOV on my '02 WRX. Had 9psi spring, couldn't hold the vacuum. Changed it for 11psi and it still opens when idle. Should go for 12psi spring?

  15. #11369
    Master Baiter EJ257's Avatar
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    Quote Originally Posted by t6nis1234
    I have Tial 50mm BOV on my '02 WRX. Had 9psi spring, couldn't hold the vacuum. Changed it for 11psi and it still opens when idle. Should go for 12psi spring?


    Does the 50 allow for adjustment besides swapping springs? If not, you may need to consider adding washers.
    Last edited by EJ257; 03-18-2012 at 04:32 AM.
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  16. #11370
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    No other adjustment possible. I think I still try 12psi spring also and after that work it out with washers.

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