P limited sport hydro flex cable size

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  • Ryanj
    Senior Member
    • May 2020
    • 133

    #1

    P limited sport hydro flex cable size

    Hello. I?ve searched through and been to OSE page On what is going to be a better preference and aligns to my certain application. I know it?s been asked a lot but hopefully boils down to the right question.
    Anyways I have a highly modified Ul19. All the electronics the layout and everything has been changed. Even the drive system and hardware. When I updated it I went with a k&s 1/4 tube do you run no Teflon liner With a .187 cable and speedmaster strut for sport. This one here I?m entering into my local club for the summer and racing. I wonder would it be beneficial to drop down the size to .150 And run a liner. Reducing rotational mass by drop in size. To my club talks about dropping it and running a .150 but There?s so many different opinions and I?m looking at what it?s gonna be beneficial and what I can pick up in a gain. Would there be a gain from dropping down. I am very picky on my maintenance to know grease very often every 2 to 3 runs. So it?s crossed my mind if it?s beneficial to drop from a .187 to a .150 or not and keep it the .187.
  • Peter A
    Fast Electric Addict!
    • Sep 2012
    • 1488

    #2
    .187 with grease in a 1/4" tube is fine. Keep the regular greasing as you do now.
    NZMPBA 2013, 2016 Open Electric Champion. NZMPBA 2016 P Offshore Champion.
    2016 SUHA Q Sport Hydro Hi Points Champion.
    BOPMPBC Open Mono, Open Electric Champion.

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    • RaceMechaniX
      Fast Electric Addict!
      • Sep 2007
      • 2821

      #3
      For P-limited run .150 cable with a teflon liner. The drag is significant enough to make a difference. Run some light weight oil instead of grease.
      Tyler Garrard
      NAMBA 639/IMPBA 20525
      T-Hydro @ 142.94mph former WR

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      • HTVboats
        Senior Member
        • Jun 2011
        • 803

        #4
        In my testing a P/L hydro I switched between a .187 no liner and a .150 with a liner and the difference was 1-2 mph. I have broken .150's and lost props. Your call speed or reliability.
        Mic

        Mic Halbrehder
        IMPBA 8656
        NAMBA 1414

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