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  1. #1
    ultra300x 702's Avatar
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    Help guys loosing my mind here. Cant hit full boost- 300x ultra

    After a few usual suspects I have yet to find my issue on my ski, Checked the belt and tensioner, Cleaned intercooler, checked for boost leaks and hose clamps. Inspected the BOV. Almost feels like its trying to burn off the fogging oil when accelerating. Replaced with new plugs and wires and still bad? Ignition coil maybe?


  2. #2
    DH300's Avatar
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    What rpm and boost are you hitting?

  3. #3
    ultra300x 702's Avatar
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    7400 rpm 12 psi . Should be seeing in the 8,200 range with my ECU

  4. #4
    ultra300x 702's Avatar
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    Im gonna take it out this afternoon after work I think I may have found my issue. Throttle assembly was loose causing the TPS to not read correct

  5. #5
    ultra300x 702's Avatar
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    Its back up and running strong! Hitting full boost.

  6. +1 by:


  7. #6
    Speed Junkie UnleashedBeast's Avatar
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    What was the cause of your problem?

  8. #7
    Gsmith88's Avatar
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    Quote Originally Posted by ultra300x 702 View Post
    Im gonna take it out this afternoon after work I think I may have found my issue. Throttle assembly was loose causing the TPS to not read correct

    I guess this , beast.

  9. #8
    Hey mate, haveing a similar issue with my 310R. Have had ECU done, pump wedge, deep fuel extender. Since getting the stuff done, weve only seen 7500 rpm, and 108kph on GPS and a flat spot on take off, and doesnt seem as fast.... Any help would be great. Cheers.

    What exactly was loose on the Throttle and where is the location?

    Thanks again

  10. #9
    Olomana's Avatar
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    It looks like you are hitting the speed limiter ...

  11. +1 by:

    GZA

  12. #10
    hmmm, but the ECU flash removes the limiter, and no scom is needed. my tuner sent me an image of my ecu in his ski and did 121kph and 8250rpm. same mods.

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