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  1. #1

    Join Date
    Jul 2011
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    ct
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    62

    ultra 300x.a mod to add hp and cut down on oil consumption and improve ring seal.

    what this motor needs is a crankcase vaccume pump.thats where all the oil is going its getting by the rings with all the boost pressure.just like on my 598 nos motor on the dyno it makes 30+hp more with a belt driven vac pump pulling about 12 inchs of vaccume.it would help seal these motors up and eliminate all the oil usage.there are electric vac pumps that can be made to work.it would just need to be tapped into the motor in the right place and would need a catch can.


  2. #2
    stangbang's Avatar
    Join Date
    Oct 2007
    Location
    West Palm Beach
    Posts
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    me nor my best friend have burned one drop of oil out of either of our 300's. I wonder why some are and some aren't...

  3. #3

    Join Date
    Jul 2011
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    ct
    Posts
    62
    i went thru 2 quarts with in 11 hours.i just make sure to check it and top off before going out.

  4. #4
    mine doesn't burn a drop either, 10 hrs. since the first oil change.

  5. #5
    SAL08HO's Avatar
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    May 2008
    Location
    L TOWN FL
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    Not a drop of oil used with mine at 10hours.. not sure why you would have that problem

  6. #6

    Join Date
    Jul 2011
    Location
    ct
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    62
    i did have the dealer do 10 hour service/oil change at 9 hours.and its used a half quart since.i think i was pretty easy on it for the first 5 hours and varied the throttle. im still never full throttle for more than 15/20 seconds.

  7. #7

    Join Date
    Jul 2011
    Location
    ct
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    62
    I thought this was a fairly common issue with these skis using oil.guess its a good thing they all are not doing it.seems to be getting a little better with mine over time. a well designed vac pump system would still make more hp on them.

  8. #8
    gmoeller's Avatar
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    Nov 2007
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    Hermosa Beach, Calif
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    Mine is drinking more oil than I'd like also.
    I'm hoping mine will get better over time, too. Only 7 hours on it right now.

  9. #9
    Banned User
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    Aug 2009
    Location
    Discovery Bay, CA
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    50+ hrs and it doesnt burn any oil.... Pampered the break in for 10hrs thats how i roll haha

  10. #10
    2011 N/A champ 2011-2012 turbo champ elpeladodelsamba's Avatar
    Join Date
    Apr 2011
    Location
    uruguay south america
    Posts
    311
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    mine consumes oil. 5 hours break in . and consumes 200ml in an hour wot

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