"The BIG BOV thread" (Where all bov question threads get merged) - Page 621

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; Originally Posted by Rogan tuning isnt the issue.. the issue is the maf has already read the air, and is ...

  1. #9301
    Registered User Pat'swrx's Avatar
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    Quote Originally Posted by Rogan View Post
    tuning isnt the issue.. the issue is the maf has already read the air, and is now fuelling for that air, but you let it out via bov, so now its rich..
    but see what I'm saying is that if you dyno tune it can't they calculate the air to fuel ratio so then it won't make the engine run rich?

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  3. #9302
    Administrator Trainrex's Avatar
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    Quote Originally Posted by Pat'swrx View Post
    but see what I'm saying is that if you dyno tune it can't they calculate the air to fuel ratio so then it won't make the engine run rich?
    No. The rich condition doesn't happen under throttle.

    The only way to make it work 100% is converting to MAP.

  4. #9303
    Registered User wunderboy987's Avatar
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    that sounds pretty easy. were can i get a stock bpv other than a dealer? thanks for the help guys
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    Resident meany-rator 06wrx4me's Avatar
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    Quote Originally Posted by wunderboy987 View Post
    that sounds pretty easy. were can i get a stock bpv other than a dealer? thanks for the help guys
    Ebay, here, NASIOC, I-club, Iwsti, Craigslist, Dealer.

    It is easy, 2 bolts, 1 Clamp and a gasket or o-ring depending on which IC you have.


    2 Bolts require 12mm socket IIRC, clamp is "Jesus style" so although a proper tool is sold to take them on and off, the good old plier method works. If you have no clamp a simple screw tighten hose will do.
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  6. #9305
    Geriatric Ginger Mod Rogan's Avatar
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    Quote Originally Posted by Pat'swrx View Post
    but see what I'm saying is that if you dyno tune it can't they calculate the air to fuel ratio so then it won't make the engine run rich?
    If it were that easy, all the kids would be doing it
    Rogan o_0
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  7. #9306
    Registered User wunderboy987's Avatar
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    i have the stock 07 IC
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    Registered User wunderboy987's Avatar
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    want to sell my turbo sx RFL blow off valve. its the loudest BOV they make, it has 5k or less miles on it. the reason im selling it is because my car is runing rich. im also looking for a 07 stock BPV or will do an even trade for my turbo sx for a stock BPV. thanks, if u have any questions shoot me a PM
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  9. #9308
    Geriatric Ginger Mod Rogan's Avatar
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    Quote Originally Posted by wunderboy987 View Post
    want to sell my turbo sx RFL blow off valve. it used to be the loudest BOV they made, it has 5k or less miles on it. the reason im selling it is because my car is runing rich. im also looking for a 07 stock BPV or will do an even trade for my turbo sx for a stock BPV. thanks, if u have any questions shoot me a PM
    fixed it. lol

    Ive got a 2002 bpv in the garage. are they different? I didn't think they were...

    I don't want an RFL, though..
    Rogan o_0
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    Resident meany-rator 06wrx4me's Avatar
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    Quote Originally Posted by wunderboy987 View Post
    i have the stock 07 IC
    O-ring
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  11. #9310
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    wait what can u do with a bov to make ur car not run rich?

  12. #9311
    Registered User danscoobywagon's Avatar
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    needs to recirculate

  13. #9312
    Registered User wunderboy987's Avatar
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    does anyone know if a stock 2005 wrx has the same stock BPV as a 2007 wrx tr?
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  14. #9313
    Registered User wunderboy987's Avatar
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    quick bov question

    does anyone know if a 2005 wrx stock bypass valve will fit on a 2007 wrx tr? thanks
    Hawk-Eye Alliance #898Military Milita #898

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  15. #9314
    Registered User BillFromTR's Avatar
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    It should.
    05 STi for sale, 400hp, 50k miles, only 17k

  16. #9315
    Registered User bcyb1029's Avatar
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    It will.
    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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