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McCoy 19 redhead

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Old 04-16-2011, 07:37 AM
  #1
martenson
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Default 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.
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Old 04-16-2011, 08:27 AM
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Default RE: McCoy 19 redhead

http://www.youtube.com/watch?v=ffSJVqKlFUE
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Old 04-16-2011, 02:15 PM
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w8ye
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Default 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.

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Old 04-16-2011, 11:04 PM
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martenson
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Default RE: McCoy 19 redhead

I only use castor oil, no "new" fancy oils for me
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Old 05-13-2011, 03:06 PM
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Default 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.
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Old 05-13-2011, 08:48 PM
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Default 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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