"The BIG BOV thread" (Where all bov question threads get merged) - Page 679

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; how about Blitz Dual-Drive Vent to Atomosphere Blow Off Valve Kit for 2008 WRX??...

  1. #10171
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    how about Blitz Dual-Drive Vent to Atomosphere Blow Off Valve Kit for 2008 WRX??

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  3. #10172
    Sammich Makin' Pwincess wrxtreme06's Avatar
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    ah, such a brand new car. why'd you want to ruin it so soon?


    there's no need to purchase a BOV whatsoever. use that money to get something that will help your car such as a TBE and a tune.

    andddd take a gander at this:

    http://www.clubwrx.net/forums/engine...ov-thread.html
    Last edited by wrxtreme06; 08-27-2008 at 05:59 AM.

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  4. #10173
    Registered User Black X Dahlia's Avatar
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    your car straight from the factory is tuned to rune a recirculating valve, not a blow off valve. If you replace your Recirc. with a bov, then ecu is still going to be reading the air levels that would still be there if you still had your Recirc. So the ecu tells the engine to dump the amount of fuel to compensate for the amount of air. Now, since your blowing that air into the atmosphere, then your dumping more fuel than you need to be, or in other words your engine runs rich. This can be tuned out, but like i said...unless your getting a tune to match your A/F ratios....dont get one.
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    Question 08 STi BOV

    So i just bought my first subie on saturday... a brand new 08 STi, and want to put a BOV on it, but the dude at the dealership told me that on the new models they do more bad than good. Is this true? And also whats the best way to break in the engine?

  6. #10175
    Administrator TheJ's Avatar
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    Yes the dude at the dealer is correct that BOVs do more harm then good. However, old or new, BOVs have never been benficial for the stock USDM WRX and or STi.
    Here is a link for BOV info:
    BOV (Blow off Valve) Information


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  7. #10176
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    Blow off Question

    anybody use Blitz Dual Drive BOV Kit for 2008 WRX?

    is there any problem if i just install the bov kit?

  8. #10177
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    Is it ok to put the HKS SSQV Blow Off Valve on a stock 2002 wrx motor?

    Some advice would be great thanks

  9. #10178
    Sammich Makin' Pwincess wrxtreme06's Avatar
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    desiree
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  10. #10179
    Registered User McGizzle's Avatar
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    Originally Posted by Trailboss
    Blow off valve on a stock engine
    Pros:
    Cool sound

    Cons:
    Run rich between shifts
    Could cause long term engine problems
    Not necessary until you're running 20+lbs of boost
    Decreased gas mileage

    Blow off valve on a modified engine w/ turbo upgrade
    Pros:
    Ability to hold more boost (20+lbs)
    Cool sound -- commonly reffered to as a "show off valve"
    Give yourself some deserved bling bling for running an upgraded turbo

    Cons:
    Still might run rich, but with engine management you could help to tune that problem out.
    Still could cause long term engine problems...but when you've done everything to upgrade your turbo, you're running that risk anyway.
    Decreased gas mileage - due also to added fuel (larger injectors) w/ engine management to feed the upgraded turbo more air and fuel.


    Things to think about....
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  11. #10180
    Registered User independent 68's Avatar
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    alright i know every1 on here hates BOV's and thats just dandy, but the moral of the story is that its just NOT going to do that much damage for short, medium and even in most cases, long term. while it is absolutely necessary for upgraded turbos, you can, without a doubt, put a BOV on a stock wrx as long as its PROPERLY TUNED!
    "Whatever it takes"

  12. #10181
    Is in Love With the Admins Here 20WRX04's Avatar
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    Quote Originally Posted by independent 68 View Post
    alright i know every1 on here hates BOV's
    It's not that we hate them, it's that they are unnecessary & do not help performance at all. Why would you put something on your car that will affect it negatively? Yes, in high HP & boost applications, BOVs are the way to go. It would still be a good idea to get a recirculating BOV though. The stock BPV is good to about 20-22psi, unmodified. The reason most people buy BOVs is for the sound.

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  13. #10182
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    Quote Originally Posted by independent 68 View Post
    you can, without a doubt, put a BOV on a stock wrx as long as its PROPERLY TUNED!
    Okay..so explain how you tune for a BOV?How do you measure the exact amount of air that has left the system?Do you put a MAF sensor on the BOV?Do you see where this is going?
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  14. #10183
    Sammich Makin' Pwincess wrxtreme06's Avatar
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    Quote Originally Posted by Donkey View Post
    Do you put a MAF sensor on the BOV?

    desiree
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  15. #10184
    DUB
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    ^^^ I laughed at that too. Then this image popped into my head of a silicon MAF tube somehow secured to the BOV with a MAF sensor in it right before it vented to the atmosphere and that made laugh even more.

  16. #10185
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    greddy type rs bov for a 2002 wrx

    I was trying to install my new greddy type rs bov recirculating type and had some problems trying to install all hoses. could anyone help me and will just having a bov really mess up my engine and make it run with less power?

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