"The BIG BOV thread" (Where all bov question threads get merged) - Page 454

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; It's actually been a while since we had a BOV thread!...

  1. #6796
    Administrator Trainrex's Avatar
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    It's actually been a while since we had a BOV thread!

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  3. #6797
    Registered User Robman7835's Avatar
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    Quote Originally Posted by Trainrex
    It's actually been a while since we had a BOV thread!
    Yea we've been overdue.........
    PSM Bugeye..Cobb Stage 2

  4. #6798

    Peachypumpkincheeks

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    My 2 cents...

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  5. #6799
    Administrator Trainrex's Avatar
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    Quote Originally Posted by Speedette
    My two cents...


  6. #6800
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    I learned something new. I am a VW guy and know the 1.8T motor like the back of my hand and know they didn't like the BOV's at all. they were strictly diverter valves, is that what you guys usually use? like a recirculating valve?

  7. #6801
    Administrator Trainrex's Avatar
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    Quote Originally Posted by DragonEye
    I learned something new. I am a VW guy and know the 1.8T motor like the back of my hand and know they didn't like the BOV's at all. they were strictly diverter valves, is that what you guys usually use? like a recirculating valve?
    Yup. The factory bypass valve is rock solid up until 19-20psi, and works flawlessly.

  8. #6802
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    Quote Originally Posted by Trainrex
    Yup. The factory bypass valve is rock solid up until 19-20psi, and works flawlessly.
    so, say you dont want to go with a BOV after the 20PSI what do you go with? in VW's they usually use an aluminum bypass valve... but i dont know how the setup is otherwise.

    on the 240SX SR20DET, i used a turbo XS BOV in it and yea it ran rich, but it was needed because of the way i had the motor installed.

  9. #6803
    Administrator Trainrex's Avatar
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    Quote Originally Posted by DragonEye
    so, say you dont want to go with a BOV after the 20PSI what do you go with? in VW's they usually use an aluminum bypass valve... but i dont know how the setup is otherwise.

    on the 240SX SR20DET, i used a turbo XS BOV in it and yea it ran rich, but it was needed because of the way i had the motor installed.
    After 20 psi you will need to go with an aftermarket unit. A recirculating unit is ideal.

  10. #6804
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    Quote Originally Posted by Trainrex
    After 20 psi you will need to go with an aftermarket unit. A recirculating unit is ideal.

    cool, thanks!

  11. #6805
    Registered User REXtard04's Avatar
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    I was against the use of an aftermarket BOV as well, but recently found the HKS SSQV at a price that I couldn't turn down.

    I just installed it last night, in about 5 minutes, and my car runs NO different than it did before (i.e. no performance loss as some people indicate WILL happen)...the blow-off sound isn't annoying either.

  12. #6806
    Boba Fett BrianH's Avatar
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    I'm running 89 octane and I can't tell a difference.

  13. #6807
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    Quote Originally Posted by REXtard04
    the blow-off sound isn't annoying either.
    all depends on how much boost you are running, how fast you let off the gas, and so on...

    i guess i just heard it too much... the nice thing about those though is that you can still recirculate them, but yes they are a kick but design, very solid

  14. #6808
    Registered User Kush's Avatar
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    You may not feel a difference while driving, but you'll be running way rich between shifts, and if you have a catted uppipe......then :
    New England F4
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  15. #6809
    Registered User chromatica's Avatar
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    Quote Originally Posted by Kush
    You may not feel a difference while driving, but you'll be running way rich between shifts, and if you have a catted uppipe......then :
    and if you have no cats, you'll most likley be shooting flames between shifts(i don't think the po-po will take to kindly to this)
    I want my subie back.

  16. #6810
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    Quote Originally Posted by Trainrex
    My two cents...
    my two nuts

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    Quote Originally Posted by Blarg
    go f*** yourself

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