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  1. #1

    what props on gprxp????

    What props are you guys running on the gprxp??? Im thinking stock ECU/riva stage 3 supercharger.


  2. #2
    Fat Man, Little Boat Region8Ultra250X's Avatar
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    i think some are running a 15/19 tweaked 1mm out but i could be wrong

  3. #3
    Moderator Insanediego Joe's Avatar
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    I have ran a 16/24 set back dynafly, my current prop is a 15/21 dynafly. I think hydro is running a 14/20 dynafly.

  4. #4
    Hydrotoys's Avatar
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    Riva S3, 14/20 dynafly. Final pitch to match rpms. Watch out for the radius edge on the dynafly or you will tear up your liner.

  5. #5
    800AMSOIL4U's Avatar
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    Are these with 05 and up pumps, Skat 155,158 or stock pumps?

  6. #6
    Hydrotoys's Avatar
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    So far with the 05 pump...but the older pump that I tested with a concord was about the same rpms.

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