"The BIG BOV thread" (Where all bov question threads get merged) - Page 108
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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; Heli-coils should work, look them up. I know they can be used to fix striped spark plug holes. It is ...

  1. #1606
    Registered User Trypsin's Avatar
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    Heli-coils should work, look them up.
    I know they can be used to fix striped spark plug holes.
    It is a spring looking coil that you thread into the hole works pretty well, i have only used them at work on automation equip. but i have heard of them being used in automotive applications.

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  3. #1607
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    helicoil or bigger bolt is the standard answer here. my only question is what materials can't be helicoiled?
    05 STi...not stock

  4. #1608
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    HKS sequential blow off valve?

    Does anyone have a sound bit of the HKS full atmosphere blow off valve. I have heard the Forge but now the HKS.

  5. #1609
    Registered User CKxx's Avatar
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    There is a video of the HKS exhasut on here somewhere, and in the video the car also has an HKS SSQV.

  6. #1610
    Registered User CKxx's Avatar
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    Here ya go.

    http://www.hksusa.com/info/download.asp?id=1759#

    Go there, and click on "Download."

  7. #1611
    Registered User WRXG0blin's Avatar
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    I've heard alot about problems,such as bogging when you let of the throttle with 100% atmosphere blow off valves. It seems to happen with only a few select people.
    -1986 RX-7 GXL
    -2002 Blue WRX Wagon (given up)
    -2001 Prelude, (sold)
    -1989 Accord, (sold)
    -1984 Dodge RamCharger (Sold)

  8. #1612
    cnk
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    I have an HKS SSQV and can tell you that there is no bogging. From all of my research, the 2 BOV's that seem to not have issues are the HKS and the Forge units. Since the HKS is sequential, it doesn't open fully all the time, only when it's needed. You will get a slight rich condition in between shifts, but I have learned to adjust my driving to avoid any afterfire. No problems whatsoever.

    Calvin

  9. #1613
    Registered User g0tb00st's Avatar
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    Originally posted by cnk
    I have an HKS SSQV and can tell you that there is no bogging. From all of my research, the 2 BOV's that seem to not have issues are the HKS and the Forge units. Since the HKS is sequential, it doesn't open fully all the time, only when it's needed. You will get a slight rich condition in between shifts, but I have learned to adjust my driving to avoid any afterfire. No problems whatsoever.

    Calvin
    How do you avoid the afterfire issue?

  10. #1614
    Registered User WRXin''s Avatar
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    Originally posted by cnk
    I have an HKS SSQV and can tell you that there is no bogging. From all of my research, the 2 BOV's that seem to not have issues are the HKS and the Forge units. Since the HKS is sequential, it doesn't open fully all the time, only when it's needed. You will get a slight rich condition in between shifts, but I have learned to adjust my driving to avoid any afterfire. No problems whatsoever.

    Calvin
    What he said

    Here's a vid clip of my car http://blacksky.hypermart.net/tsp/bov2low-res.wmv
    Fahd

    Floats like a butterfly and stings like when I pee!

  11. #1615
    cnk
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    Originally posted by g0tb00st
    How do you avoid the afterfire issue?
    I usually just shift and get back on the throttle faster. That seems to get rid of most of the afterfire.

    Calvin

  12. #1616
    Registered User 2003WRX's Avatar
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    Originally posted by WRXG0blin
    I've heard alot about problems,such as bogging when you let of the throttle with 100% atmosphere blow off valves. It seems to happen with only a few select people.
    I had the HKS on my car for 1 day and mine ran badly with it. The best I can describe it is it felt as though I was trying to tow a boat or something. The car lost ALOT of power, especially between shifts. I still can find no reason why some people report no problems and others do. There is a local guy here in SLC with the HKS and he says his runs fine too. I sold mine on nasioc to a guy who PM'd back and said it ran okay on his. I know it was installed properly... oh well. It sounded sweet. I then went with the GFB hybrid and I'm 100% happy with it.
    2003 WRX Sedan
    2004 Nissan Xterra SE 4x4

  13. #1617
    Registered User WRXin''s Avatar
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    Originally posted by 2003WRX
    I still can find no reason why some people report no problems and others do.
    I want to find out why this is so. Maybe we can attribute it to the mods that we have. When I got mine I had the following mods: uppipe, Blitz SUS intake, and an HKS cat-back. That's about the only performance mods that I had at that time. What did you guys have 2003WRX and cnk?
    Fahd

    Floats like a butterfly and stings like when I pee!

  14. #1618
    cnk
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    Vishnu Stage 1 with TXS turboback, samco intercooler hoses, and upgraded fuel pump.

    Calvin

  15. #1619
    Registered User WRXin''s Avatar
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    Originally posted by cnk
    Vishnu Stage 1 with TXS turboback, samco intercooler hoses, and upgraded fuel pump.

    Calvin
    So you had an uppipe, right? Sorry, not all too familiar with the Vishnu kits. So if 2003WRX did not have an uppipe, then we can logically say that the uppipe is the culprit...agreed?
    Fahd

    Floats like a butterfly and stings like when I pee!

  16. #1620
    cnk
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    Vishnu Stage 1 doesn't really exist. It's basically a Stage 0 with turboback. Stage 0 consists of remapped Ecutek ECU, colder spark plugs, UD pulley, uppipe, and bleeder valve. Don't know if you could really say that the uppipe caused the problem. I do know that most HKS SSQV BOV's are set at the factory for a JDM WRX STI, which means the setting is stiffer than what we need for a USDM WRX. One could assume that this may be the reason why some people have problems and some don't as some people are running more boost than others. With my setup, I run about 17psi. This is just a hypothetical though.

    Calvin

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