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Thread: looking for KV checker

  1. #1
    Join Date
    Dec 2010
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    Default looking for KV checker

    like it say before I buy new want to check here thanks Chris

  2. #2
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    Apr 2007
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    ON
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    Chris

    I use a hand held tachometer with a small rubber cup on the front, put it on the motor shaft or prop shaft(without a prop)
    Use a low voltage battery pack 2S or 4S
    Then divide your result by the pack voltage.
    It is very accurate.

    Larry
    Past NAMBA- P Mono -1 Mile Race Record holder
    Past NAMBA- P Sport -1 Mile Race Record holder
    Bump & Grind Racing Props -We Like Em Smooth & Wet

  3. #3
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    Wa
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    Got pics of the setup Larry?
    "Our society strives to avoid any possibility of offending anyone except God.
    Billy Graham

  4. #4
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    Jim

    I just tried this one for you.

    This is my "P" Sport Hydro, Neu 1515 2200KV

    I hooked the boat up on a fully charged 2S 70C - 5000map Pack 8.4 Volts

    Tachometer reads 18,500 RPM
    Divide that by 8.4 = 2202 KV

    Larry
    Attached Images Attached Images
    Past NAMBA- P Mono -1 Mile Race Record holder
    Past NAMBA- P Sport -1 Mile Race Record holder
    Bump & Grind Racing Props -We Like Em Smooth & Wet

  5. #5
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    Last edited by ReddyWatts; 02-10-2017 at 05:00 PM.
    ReddyWatts fleet photo
    M1 Supercat - Neu 1527 1Y, 8s / Mean Machine- Feigao 580, 8s, 120 HV esc
    Mean Machine - Feigao 540 14XL, 8s, 100 amp HV esc, X537/3

  6. #6
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    That checker is good for stock or modified -stock car motors.

    I don't think it will handle a 40mm Neu motor.

    Larry

    Past NAMBA- P Mono -1 Mile Race Record holder
    Past NAMBA- P Sport -1 Mile Race Record holder
    Bump & Grind Racing Props -We Like Em Smooth & Wet

  7. #7
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    Dec 2010
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    thank you guys !!!!

  8. #8
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    Dec 2014
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    OR
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    Chris
    This is what I use... https://hobbyking.com/en_us/hobbykin...bl-motors.html

    Instructions are kinda goofy, but once you get past that, it's smooth sailing.

    There's other source's beside's HK

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