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  1. #21
    Moderator RX951's Avatar
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    I use the plastic liner. I don't touch the prop after I bend it, I flapper wheel the plastic liner to accomodate. Once my pump is in, it cuts a new groove/fit on the first crank.

    good reminder to everyone what DUKE said about the O.D. of the Dynafly when it is pitched up

  2. #22
    cheatin' piston popper addicted's Avatar
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    Awesome post duke

  3. #23
    Brian Thomas's Avatar
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    Great idea using the reciever hitch. Now re-bends can happen real time at the lake. I have similar setup for my bench vise.

    One thing else I did was to add about a .250-.375" radius to the front edge of the jaws on my adjustable wrench. That way you don't have the "pinch" marks in the prop.

    Also, I always use feeler gauges as a height reference when truing the trailing egdes. Plus, I measure and divide the blade into 4 sections from leading edge to trailing edge, marking with a sharpie. With a height gauge, I check and tune all the blade heights to to the same height at each point. I find it more accurate when I need to "fine tune" between the reference lines on the plastic gauge.

    There is speed in the details!

  4. #24
    Moderator RX951's Avatar
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    Welcome to the forum Brian

  5. #25
    Nice Duke I had not seen this one!!!

  6. #26
    Prism's Avatar
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    Thank You! Great idea! Today I went out to Lowes and bought the stuff to make this!

  7. #27
    It's not the destination, it's the journey!! Rip'nTear SHO's Avatar
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    wow....very cool thread....


  8. #28
    "Hustler" Inkaddict's Avatar
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    TTT

  9. #29
    Moderator RX951's Avatar
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    Lightbulb

    Impellers do not come perfect from the factory. Thats why it has been common practice for those who pitch their own impellers to measure the impeller, find out how true it is, then adjust/pitch it to dial in the motor's RPM's to achieve the desired powerband range.

    Unfortunately, hobbyists and racers alike do not always have access to pitch blocks like the manufacturers have as shown below. Improvision has been made such as how Duke has demonstrated on how to pitch animpeller in acordance to his tecnique he is sharing with us.

    So, the method Duke, Fercho, Ben, Tommy Jordan, Jerry, and others have shared produce desirable results for the D.I.Y. methodology.

    Lets keep this thread constructive
    Thanks





  10. #30
    AWA Member 32DegH2O's Avatar
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    Comments placed in another thread.

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