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  1. #1

    05 pump/prop set-up

    i just got my 05 pump and prop set -up....should i expect any gains going from an 04 pump 14/20 prop to an 05 with 14/20???


  2. #2
    ABBOTT's Avatar
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    With the mods you have listed, you will see better mid-range acceleration and about .5 (give or take a few Tenths)on top speed.

    .5 is .5 in my book and if it's going to yield a gain, then you made the right move in which many of us have done now. A half mile an hour is hard to come by in some cases so i would take it 8 days a week.

  3. #3
    Happily Self-Employed WFO's Avatar
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    I went from the old set-up with a 14/20 to the new style setup with a 14/23, non-ported and picked up 2.9 mph that same day. My old prop was a little trashed tho.

  4. #4
    why did you have it repitched?? will a new set-up change your RPM's at all?? I need to prop up with my old set-up and imagine i will here too...But i gotta get my ski running right first....

  5. #5
    ABBOTT's Avatar
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    Quote Originally Posted by DaGoblinEatR
    why did you have it repitched?? will a new set-up change your RPM's at all?? I need to prop up with my old set-up and imagine i will here too...But i gotta get my ski running right first....
    A Concord 14/20 and a DF 14/20 are not the same thing. The diameter of the DF Prop is larger, so you have to compensate Pitch to get back to your target RPM Range. These two props (Pretend they are both 14/20) would turn totally different rpms due to their design difference.

  6. #6
    Happily Self-Employed WFO's Avatar
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    The Dynafly is different than the Concord. You will definately need to re-pitch. Get it in and running, record your rpms and contact one of the prop guys for a re-pitch.

  7. #7
    so should i pull more or less RPM's with the new set-up? I'm guessing less RPM with more speed?

  8. #8
    Happily Self-Employed WFO's Avatar
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    Quote Originally Posted by DaGoblinEatR
    so should i pull more or less RPM's with the new set-up? I'm guessing less RPM with more speed?
    Should pull target rpms on top, ported EFI w/key about 7150-7100. Hopefully you will see a lot more speed with the new set-up. After you re-pitch your prop of course

  9. #9
    txgp1300r's Avatar
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    just did the 05 pump and dynafly day before yesterday...the guy who regularly beats my ass on the water got something differant yesterday...lol....ski felt a tiny bit slower on launch but really flew on the big end and midrange pull......and yes i pulled this guy on top,barely...same guy (kawasaki) beats rxp's ,and used to whip me badly..so im happy with this upgrade...we burned 10 gallons of premium in 1.5 hours....we like to ride fast all the time...also im using amzoil gear lube in the pump per rx951 mods page..

  10. #10
    every bit helps i guess....but at $500.00 every half mile my budget won't be able to afford a 75MPH ski for a few more seasons...by then everyone else will be running 90MPH

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