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  1. #1
    mirror's Avatar
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    impellor question for the 15F

    I just purchased an impeller off ebay and it was listed as a 13/19 and now that I have received it on the impellor inside the 13/19 box it states on the impellor 14/20. How would that do with a 15f that has a STXR ride plate, power filter and that is all. What is the biggest difference in the 2 impellors.


  2. #2
    Daveski's Avatar
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    The biggest difference is 1 degree, Ive heard some say the 14x21 is best and Ive heard some say 13x19 is best. Riva calls for 14x21 RPM kit, but I would think yours would be better than stock regardless. Its an solas concord I assume?

  3. #3
    mirror's Avatar
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    I am sorry but it is a skat tram prop

  4. #4
    Daveski's Avatar
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    I would say youll gain 1 or 2 mph from it, maybe more depending on the condition of your old prop and if you replace the wear ring, is it stock prop and wear ring? stock prop is 13x19 so going up 1 degree with the mods you have should give more top end without losing any noticable torque.

  5. #5
    elviswongg's Avatar
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    If your not shure of the pitch you have you can find a paper mesuring Impeller on my attachement it is in PDF just print it and cut it at the line .
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