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  1. #1
    dreww's Avatar
    Join Date
    May 2007

    top speed...this sound right?

    i finally GPS'd my skis. minor mods....listed in my sig.

    new plugs; im 220lb; tanks about half full; late morning run on near glass water.

    12f hits the bar over 7K rpms....maxed ay 55.4mph

    15f hits 3 bars over 7K rpms....maxed at 61.2mph

    sound right for 130hr skis?

  2. #2
    DWRAT's Avatar
    Join Date
    Sep 2008
    PHX, AZ
    very nice numbers

  3. #3
    dreww's Avatar
    Join Date
    May 2007
    i was expecting better numbers than that, thats stock numbers. but i also have well used skis.

    should i expect most top end gains from rideplate and/or prop? everyone who rides them says they feel the holeshot improved with my intake and exhaust. but zero top speed increase?

  4. #4
    AaronC's Avatar
    Join Date
    Aug 2006
    Sacramento, CA
    Those speeds sound dead on. Your ski's must be in good operating condition. An air intake, impeller, and ride plate should get the 15f to 65-66 and the 12f to about 60 mph. I gained 2.5-3 mph from the rideplate, 1-1.5 from the impeller and about 1 from the air intake. the 15f was always between 65.7-66.6 mph.

  5. #5

    Join Date
    Aug 2009
    Shuswap lake, Canada
    Yes, but those numbers of yours are likely honest numbers......and they sound pretty good to me! I haven't gps'd the 15f yet, but we saw 54mph on the 75hr. box-stock 12f, at an elevation of 1150 ft, 25 deg celsius day, 120# rider, smooth water.

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