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Thread: Dual BOVs?

  1. #1

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    Dual BOVs?

    I've wondered this for a while now. As you increase your PSI i.e. going from stock SC to a Etech 18psi wheel the clutch will be under more pressure and fail faster. I've seen on cars where they put two BOVs to combat compresser surge. Can the same not be done on our skis? I know that space is limited but would lack of space the reason for this not being done (atleast I haven't seen it done)?

    For instance the RIVA I/C has the BOV mounted on the end tank. Could you not install another on the pipe? Or is it the added loas that it has to bear with the higher PSI wheel rather than the surge that makes the clutch fail faster with bigger wheels?


  2. #2
    RUSH.'s Avatar
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    You need aloooooot more boost to justify twin bovs. I had a single blitz on my evo pushing 35 psi.

  3. #3
    hitman's Avatar
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    Quote Originally Posted by RUSH. View Post
    You need aloooooot more boost to justify twin bovs. I had a single blitz on my evo pushing 35 psi.
    I think he's referring to twin HKS BOVs. I have heard that compressor surge does become an issue at 16+ boost levels with the HKS.

    Obviously, I would agree with you though, instead of dropping another $200 on a second HKS, just dump the HKS and go with a bigger BOV that can relieve more pressure, like a Tial or a Blitz.

    Only thing with that is, you lose the HKS's responsiveness to a wide range of boost levels.

    All that said, yes, if you want, you could run dual BOVs. It is practical? I can't really say. I never plan on seeing that much boost.

  4. #4
    Stop staring at my tits NJJer's Avatar
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    Like hitman said, buy a TiAl and forget about it.

    You will never need anything larger than a 50mm Tial. Never.

  5. #5
    RUSH.'s Avatar
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    Quote Originally Posted by NJJer View Post
    Like hitman said, buy a TiAl and forget about it.

    You will never need anything larger than a 50mm Tial. Never.

    +1

    and hitman is right. I should have specified if you are using the ssq then two may be necessary but it is much more practical to go with a 50mm tial or blitz.

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