Got a gruapner Phantom boat.... I could not put a water cooling coil unit on it because of the way the motor mouns in ...so this is the next best thing i could come up with... Air cooled blowing the air inside the end bell and then accross the motor past the aluminum heat sinks...should do something...better than nothing i suppose?

unique
but very effective. Air cooling in side a large hull has proven to be more effective then water cooling.

Cool, Could we see a pic with the heat sincs off? I have an idea.

Ok here is another shot it has no room at all plastic is smak right on the motor!
Anyone know of a 540 heat sink that has longer fins?

In addition to the heat sinc cooling it looks like you could get a couple of turns of some water cooling coil near the brushes which is where the heat comes from. Thats a tough one. I would run it and see how hot it gets with the cooling you had on it. If it gets too hot you might want to consider changing the motor mount.

No.it doesn't matter. air cooling does a better job then water cooling any day !

You might consider a duct. Maybe a piece of lexan. From the fan mostly across the motor. I would bend it around something round to get a radious. Use a heat gun to get it to hold its shape. You'll have to use something smaller then the size of the radius you want as the lexan has somewhat of a memory.


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Thats quite the statement!
I'm not going to try to prove you wrong but I see alot of the serious computer guys going to watercooling for overclocking needs.

different then a motor.
a motor heat come from the core. the core is the armature of the motor and when you attach water cooling to it, it cools the out side can and the magnets. So the only heat transfer from the hot "spot"armature is the 2 bearings and 2 brushes. there for air cooling that blows rite through the motor and out the other side would be much more effective.

Air cooling is not as effecient as water cooling due to the fact that the water is cooler than the air, but also due to the fact that the air in the hull is going to get warmer and warmer as time goes by, even the fan itself creates a small amount of heat. Why do you think that all boaters use water as a cooling method. Even all the real boat motors use water as a cooling method. It's more effecient period.

Thanks guy's
I may make a plastic cover over it...But i wish i can find 540 size heat sinks with longer fins!!

Most of the heat comes from where the brushes touch the commutator. not the armature.

note i said larger hulls.
and regardless of the larger boats this is a electric motor . Not a gas engine or a computer FET or diode.

Since water is the most effecient cooling method and it is very available when running a boat, it's the best choice when setting up the cooling system.
Lets go to the Super Vee 27 thread and tell all the guys to remove their water cooling and install fans and heat sinc's for air cooling and see how that goes.

I wouldn't. its a small closed in hull. so there would be no point. and with a brushless motor the heat comes from the wire that is encasing the inside of the can so there for water cooling is more effective.

OK, lets start a water cooling VS air cooling thread and see how that goes

.LOL not here. You and I and a couple more people are the extent of smart people here. that would have input to the thread.

so should i make a air vent scoop on the boats top cover so air can get in it?
or will this be a bad idea?

Bad idea if you don't want water to get in the hull.

It was fun discussing it anyway, thanks

see this pic see the scoop i was thinking of making a vent hole in it?
But i don't know if it would be a good idea

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Water will get in and water does not get along with electronics. That vent would be for a gas motor

Wow. That's pretty cocky. I wonder if I'm one of the smart couple of others. I sure hope so. You sure spend alot of time here for such a shallow pool.

Glad you finally pointed out the difference between brushed and brushless. I think your point is based on this: In order to cool something you have to put a temp differential across it. Putting water across a rotating armature or commutator isn't possible while you can reach just about every parts of a brushed motor with air, (without hurting it). Besided this difference, there is none. Heat is heat and needs to be removed most cases of high performance. I'd preferr to remove it with water. More densely packed molecules, more cooling potential in water.

That's very cocky...and I'm sure that most people wouldn't appreciate it if they read it.

Taylor - You've got a lot to learn if you think RC knowledge makes you smart.

No. I spend a lot of time here because A: i have no life( HAHAHA) and B because its better then watching TV.
and in water cooling it is how quickly you get the water to pass over it and exit it. it doesn't have to sit there.