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Thread: Boost numbers

  1. #1

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    Boost numbers

    Boat runs great but MPH #'s are off in my opinion.

    '12 300x, R&D scom. 70MPH GPS with no fuel and trimmed up. full tank 68-69mph gps.

    It was showing 7950rpms.

    Here's what I noticed. The boost gauge never got near 15. It was 1 bar over the T letter at most. Go right to it immediately but never over it.

    Is that right?


  2. #2

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    I counted the bars and I am a full 5 or 6 bars from the top at WOT.

  3. #3
    Take the time to smile sirbreaksalot's Avatar
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    Have you done anything to your BOV yet ?

  4. #4

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    have not touched anything other than check the exhaust filter. explain it to me and I'll go at it.

  5. #5
    Take the time to smile sirbreaksalot's Avatar
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    Option 1: adjust it up so it cant move open or leak
    Option 2: just block it off

    these have been known to start leaking at 2 psi

    Waz

  6. #6
    mod addict's Avatar
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    Boost numbers on the LCD have known to be off, not a big deal.
    I adjusted my valve and nothing changed. Many other reasons the ski's top speed changes.

  7. #7
    Take the time to smile sirbreaksalot's Avatar
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    I've gained consistency in my higher RPMs by blocking every BOV on all my ultras since 2007

    even on the test rig they leak early,

    make a simple tester like this and you will see they all leak

    So take it out of the equation because they ALL leak before they should.

    WazClick image for larger version. 

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  8. #8
    Gsmith88's Avatar
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    Mine stops right at / before 15. Kind of looks like tnere is more room for it to go but I think it just stops there.

  9. #9

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    How do I adjust it?

  10. #10
    Gsmith88's Avatar
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    Just buy the $20 block off plate from the online store and be done with it like most have

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