"The BIG BOV thread" (Where all bov question threads get merged) - Page 638
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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; ok, realistic answers for you: BOV is not for your turbo. it goes on your intercooler/IC piping. BOVs are also ...

  1. #9556
    Registered User jma_1000's Avatar
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    ok, realistic answers for you:

    BOV is not for your turbo. it goes on your intercooler/IC piping. BOVs are also TMIC and FMIC specific, with adapters for both. vent to atmosphere combined with mass air flow sensor readings is not an ideal situation. when you vent, and hear that psssh, you actually losing all the air your MAF thinks is in the system. so for a slight moment, youre going to be running rich. theres VTA, hybrid (think 50/50), and recirculating. the reason why you SHOULD run a BOV is for higher boost pressure threshold. '02-'07 bpv's are steady for up to about 21psi, then they start to leak. aftermarket BOV's will run higher pressure than that. is that an '08 i see in your avatar? is that the vehicle you own? from what ive heard, the plastic looking bpv on the IC is only good for like 16lbs, in which case you SHOULD get a recirc bov.

    personally, i run a Perrin recirc bov, for the above stated reasons of higher pressure threshold.


    and hey, these are just my thoughts on this; if you want psssh, try a snorkus delete. or get a vta bov and dont listen to anyone here.
    "I do well to be angry, even unto death."
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  3. #9557
    Registered User oriol's Avatar
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    Quote Originally Posted by Jebus View Post
    Use the search button. It is located by pressing alt+f4 ok? If it doesn't work at first, just keep pressing it.


    not the first one
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  4. #9558
    Registered User snowflowmfg's Avatar
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    BOVs are bad for our cars. If you want a better one than the plastic OEM one then go with a recirculating one. THere's a "BIG BOV" thread on here, go find it to answer all your questions.
    Hawk-Eye Alliance #116
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  5. #9559
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    Or just go stage 2 and hear your turbo wind up and down all day. I say screw bvo. As stated they are bad for subie as the air mass sense thinks air is there when there is not. This why it makes the car run rich..
    -07 STI Black
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  7. #9561
    Registered User MisterChristie's Avatar
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    Recirc BOV?

    I've got my eye on the GReddy recirculating blow-off valve, but as always wanted to run it by the people who are bound to know. I'm trying to smooth out the acceleration a bit on the car I'm buying, which is equipped with a vent to atmosphere BOV at the moment. Is this a worthy investment or should I start elsewhere?

  8. #9562
    Registered User snowflowmfg's Avatar
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    Quote Originally Posted by MisterChristie View Post
    I've got my eye on the GReddy recirculating blow-off valve, but as always wanted to run it by the people who are bound to know. I'm trying to smooth out the acceleration a bit on the car I'm buying, which is equipped with a vent to atmosphere BOV at the moment. Is this a worthy investment or should I start elsewhere?
    Yes, that doesn't sound too bad. Either get a stock bypass valve for a lot less money and get some exhaust or an AP or something, or if you want, go for the aftermarket recirc. BOV.
    Hawk-Eye Alliance #116
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  9. #9563
    Registered User MisterChristie's Avatar
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    Is there an online OEM parts store? It's true though, the kid I'm buying it from sold all his stock parts

  10. #9564
    Master Baiter EJ257's Avatar
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    Quote Originally Posted by MisterChristie
    Is there an online OEM parts store? It's true though, the kid I'm buying it from sold all his stock parts
    Pa/stock Bpv!!!!

    $50
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  11. #9565
    Registered User MisterChristie's Avatar
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    Indeed, thanks for the link dude. Your second quote is awesome

  12. #9566
    Master Baiter EJ257's Avatar
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    Quote Originally Posted by MisterChristie
    Indeed, thanks for the link dude. Your second quote is awesome
    No problem. It's a great pick-up line
    2005 WRX STi (Mods | Virtual Dyno)

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  13. #9567
    Registered User jma_1000's Avatar
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    Quote Originally Posted by MisterChristie View Post
    I've got my eye on the GReddy recirculating blow-off valve, but as always wanted to run it by the people who are bound to know. I'm trying to smooth out the acceleration a bit on the car I'm buying, which is equipped with a vent to atmosphere BOV at the moment. Is this a worthy investment or should I start elsewhere?
    what kind of vta bov is on your car now? you might be able to re-coup some (or all) of the money spent on an oem bpv. pretty sweet deal, i say.
    "I do well to be angry, even unto death."
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  14. #9568
    Registered User MisterChristie's Avatar
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    I can't remember man, both times I've looked at the car I'm so excited about driving it I hardly note any of the stuff I originally came to look at haha

  15. #9569
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    Is there any problems with having a BOV??

    I have been reading alot of the engine modification chats and i keep seeing a big NO to bov's, is there actual problems with having them or just not use full?

    I have a stealth fully adjustable bov?

  16. #9570
    Registered User koogxone's Avatar
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    Quote Originally Posted by Mitch-my01rex View Post
    I have been reading alot of the engine modification chats and i keep seeing a big NO to bov's, is there actual problems with having them or just not use full?

    I have a stealth fully adjustable bov?
    If you have a fully adjustable BOV, set it to fully recirculating and you'll be fine. Please peruse a couple of the last few pages of this thread to see how they can be detrimental to your car.
    -kyle
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