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  1. #1

    Join Date
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    McCoy 19 redhead

    I ran my dad's old McCoy 19 redhead.
    Muffler unknown, Top Flite 10x6 nylon prop, Fox idle bar plugg.
    Fuel is 25% castor oil and 10% nitro.
    And it has an modified Fuji 19 RC carb.

    I've got 9500 as best rpm.
    It fluctuated between 9100-9500 rpm.

    I think this is real good.

    Film clip will come soon.

  2. #2

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  3. #3
    Moderator w8ye's Avatar
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    Dec 2001
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    Shelby, OH
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    RE: McCoy 19 redhead

    That's a lot of prop for those old engines. But being as it is running that fast, I would continue to use the same prop.

    Hard for me to remember the props now for the 19.

    I do remember running a 10 X 6 on the McCoy red head 35

    A 9 X 6 on the My McCoy 29 all silver Super Stunt 29,

    I don't remember on the 19's but 9 X 4 comes to mind.

    On the K&B and Fox 15's I ran a 8 X 4

    They would only run up close to 10,000 but the fuel was generally 5% nitro and 20% castor oil.

    Need to run a lot of oil in these for they have a bushing crank and a iron piston running in a steel sleeve.

    I was going to say castor oil but you guys don't seem to use it in Europe.

    I do remember the McCoy's didn't last long unless you ran them just on the 2 cycle edge of the break into 4 cycle. If you peaked them out - they were worn out after just a few runs.

    Attended the CutFinger Institute of DirtNap University for years but never did graduate....
    Recipient, Mangledhand award August 2008
    Club Saito Member #7
    Original AMA #31261

  4. #4

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    RE: McCoy 19 redhead

    I only use castor oil, no "new" fancy oils for me

  5. #5

    Join Date
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    RE: McCoy 19 redhead

    Pretty sure I ran my McCoy 19 redhead on a 9x4 prop. Even at that, it had lousy fuel draw...you had to be careful the launch wouldn't starve it.

  6. #6

    Join Date
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    RE: McCoy 19 redhead

    That must be a very good one to turn that RPM on a 10x6. The McCoy quality was spotty. Some were good and started easily, some were better arm exercisers than a Bowflex. I have 1 very good one, and several paperweights.


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