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  1. #1
    Mike's GPR's Avatar
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    impeller pitch questions

    I have a question about a Solas Concord 13/19 impeller and its pitch.

    I used the prop pitch gauges that are available on this site and made a homemade pitch gauge. My 13/19 impeller reads 19 on the trailing edges but the leading edges are right at 12. Should I adjust the leading edges to be closer to the 13 pitch or is this normal for the stock Solas impellers. I know that the pitch is all over the place when they leave the factory, but this impeller is pretty consistent.

    Just looking for your thoughts.

    Thanks, Mike


  2. #2
    After working a few thousand 13/19 Concords by now. The TRUE PITCH in degrees AVERAGE between 11-11.5 / 18-19

  3. #3
    Mike's GPR's Avatar
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    Island Racing, Thank you for the information.

    With that being known, would there be any improvement in acceleration to increase the leading edge to a true 12.5 or 13 on this prop? I realize some rpm loss will occur. And I know if you change the trailing edge to a 20 you will gain some top speed, again with some rpm loss.

    Just curious

  4. #4
    Ramps's Avatar
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    Repitch

    Hey,

    I to am thinking of a repitch I also have a new 13/19 solas imp. Is the gauge to test your current pitch hard to make?
    Bye the way I am the one with the 1200R for sale that will not sell. I think I am going to keep and maybe do a complete tear down this winter, and rebuild bigger. See yah...

  5. #5
    John XL1200 ltd's Avatar
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    Hello from Greece guys!!!!very good forum i just registered !!my name is John and i would like to ask if someone knows what pitch the stock impeller of my xl ltd is??i am just wondering..i allready bought riva intake grate plate pump seals D-plate/chip and a solas 12.18 impeller from lineonedistributors in UK!!!

  6. #6
    billy's gpr's Avatar
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    welcome to the forum john!!

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