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Author Topic: cox reed  (Read 1006 times)

Offline bob whitney

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cox reed
« on: November 13, 2018, 12:34:00 PM »
owhat is a good RPM target for a cox Reedy on 10% nitro
rad racer

Online Steve Berry

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Re: cox reed
« Reply #1 on: November 13, 2018, 12:53:29 PM »
Depends on which one it is.

Baby Bee might get to 13,000.
Black Widow can get to around 17,000.
The Venom & Killer Bee can get upwards of 20,000.

It mostly depends on reed material & age/wear, cylinder (porting & such), glow head (high compression vs regular), head gaskets, temperature of the air, humidity, phase of the moon, and whether or not you've saved 15% by switching to GEICO.

Sorry it's not more specific. I'm going to guess you're talking more about a Baby Bee or product engine, where the top end may be around 12,500 or 13,000. Larry should be able to give a better answer.

Offline Dave Hull

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Re: cox reed
« Reply #2 on: November 13, 2018, 05:50:47 PM »
interesting question. I can't remember trying one (on purpose) on 10% fuel.  Unless maybe it was a Mouse II?  You might want to play with the head shims a bit to get back what you are giving away. I suspect it will be touchy.  Are you doing this to pick up some mileage on a stunt setup?

Divot McSlow

Offline bob whitney

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Re: cox reed
« Reply #3 on: November 13, 2018, 06:18:35 PM »
just getting some break in time on it
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Offline Dave Hull

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Re: cox reed
« Reply #4 on: November 13, 2018, 09:45:49 PM »
Gotcha. But if you just up the nitro later, it may still be tight.

Dave

Offline Larry Renger

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Re: cox reed
« Reply #5 on: November 14, 2018, 07:36:47 AM »
What prop are you using?
Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

DesignMan
 BTW, Dracula Sucks!  A closed mouth gathers no feet!


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