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  1. #1

    Turbo boost problem

    I'm having a problem with my ski its loosing boost all of a sudden. Like when I'm WOT at 16psi its suddenly drop to like 10psi i have to let go of the throttle and then get back on it and the same thing happens. Can this be a problem with either the wastegate or the boost controller? The only thing that i changed before this started happening is i change the nozzle size smaller.
    Thanks for your help


  2. #2
    BIG BOOST stickem's Avatar
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    check the waste gate pressure test it and make sure the valve is opening and closing.

  3. #3
    thanks frank is there a certain way to test this

  4. #4
    Gone in 3.0 seconds... RXPT400's Avatar
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    Is your wastegate vacuum control? If it is you can do a vacuum test with a vacuum pump and check if it works and at what vacuum pressure it does....

  5. #5
    Will work on YOUR ski for FREE! GeoRXT's Avatar
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    Do u have different springs for the WG Elliot? Maybe try a different one and see what happens...

  6. #6
    Norwegian Wiking Trond's Avatar
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    Quote Originally Posted by RXP300 View Post
    Is your wastegate vacuum control? If it is you can do a vacuum test with a vacuum pump and check if it works and at what vacuum pressure it does....

    A wastegate is pressure controled... Sounds like a boost leak Maybe a hose that is almost off...

  7. #7
    The valve goes up and down with air pressure. When i put a pop off gauge on it, it would not hold pressure. I then removed the top off the wastegate and sprayed it with soapwater. I applied the pop off gauge again and Little bubbles were coming out of the Diaphragm. Is this normal? can it be anything else?

  8. #8

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    Quote Originally Posted by Trond View Post
    ... Sounds like a boost leak Maybe a hose that is almost off...
    That's my vote.

  9. #9
    Quote Originally Posted by Trond View Post
    A wastegate is pressure controled... Sounds like a boost leak Maybe a hose that is almost off...
    would this be possible even though at low boost lets say 12 this doesn't happen

  10. #10
    would a water leak in the j pipe cause this?
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