Watercooling finned motors?

[calcagno45]

I was wondering the possibilities in going about water cooling a finned motor, the Castle Creations mass produced Neu 2200kv styled motor to be exact. Any specific ways or methods to achieve good water cooling beside a coil tubing?

Or is it possible to shave off the fins on the can? and then use a normal cooling jacket? I have a industrial metal lathe at my disposal to make it possible if suggested.

[JimClark]

put a fan on it

[ED66677]

If you have a lathe, remove every fins and use a water jacket!
You could keep one fin on each end of the can, if they are thick enough you might be able to make a groove to put an O-ring in it and slide a tube all over.

[Steven Vaccaro]

If you have a lathe, remove every fins and use a water jacket!
You could keep one fin on each end of the can, if they are thick enough you might be able to make a groove to put an O-ring in it and slide a tube all over.

Thats the way. I'm working on something like that now for the mamba.

[calcagno45]

If you have a lathe, remove every fins and use a water jacket!
You could keep one fin on each end of the can, if they are thick enough you might be able to make a groove to put an O-ring in it and slide a tube all over.

This is sort of what I'm thinking of doing. Getting 2 O-rings to fit the grooves and slide a tube over the motor, just like a water jacket...

Jim says "put a fan on it." My question is how efficient is a fan in a boat? I understand the motor has a built in heat sink, so the fresh air would blow fresher air over it. But how efficient is this versus water cooling.

[JimClark]

Actually mount it right behind it so it blows on the neat sink fins?
just an idea.

I t might work if you could move enough air

[calcagno45]

That sounds good! I think I'll try the O-ring/jacket idea first. If not, then I'll fan it.

What do you think of this Castle 2200kv motor in a PB Thundercat 31 convert? on 4s or 5s? Got the hull for free, I figured I'd try it out, and see what I can get from her.

[AntronX]

I am in the process of making watercooling jacket for my 2230 motor. I found 44mm X 54mm X 4mm rubber o-rings (part: 64744.1) at a local auto parts store. They fit tightly over the cooling fins of the motor. Next, I need to machine this pipe from 2.62" ID to 2.6693" ID. Then it will slide over the o-rings and will create 0.1" of space for the water to flow. The fins increase surface area, which improves heat transfer. I will leave the fins there for that reason. Now, does anyone have access to the machine shop who can cut the inside diameter of the pipe for me?

[calcagno45]

I'm sure any machine should be able to ream that out...

I got my motor on order, so I'll see what O-rings will work and then try.

And I agree about leaving the fins on there for the added heat dissipation, so I think I will leave them too.

[AntronX]

What are you powering with that motor? 2215 or 2230 ? Those motors are powerful.

[tth]

If I am not mistaken Calcagno45 has a Neu 1515 1y motor which is 2200kv.

[AntronX]

If I am not mistaken Calcagno45 has a Neu 1515 1y motor which is 2200kv.

This is what happens when I edit video and try to read forums at the same time!

[detox]

I seem to get better water flow exiting the boat whenever I use the homemade KS 5/32" aluminum tubing jacket. My one piece jackets seems to hender the flow a little (water only trickles out from water outlet during run). I think the higher flow rate of the 5/32 tubing cools the ESC "LOTS" better...although it may not cool the motor as well...??

I have two of these NEU finned motors pictured 1515 1.5d/f, 1515 1y/f

[ED66677]

Higher water flow doesn't necessary meens better cooling! the heat exchange process between motor and water requires time! too much flow means not enough exchange time!
We could also apply the same theory as computer watercooling... CPU copper water blocks have sort of fins, do not remove totaly the fins of the motor can, this will generate turbulences (I have seen some thermal pictures showing that the more turbulences there are, the better is the heat exchange) and increase the surface in contact with water for a better heat exchange.

[Steven Vaccaro]

I seem to get better water flow exiting the boat whenever I use the homemade KS 5/32" aluminum tubing jacket. My one piece jackets seems to hender the flow a little (water only trickles out from water outlet during run). I think the higher flow rate of the 5/32 tubing cools the ESC "LOTS" better...although it may not cool the motor as well...??

I have two of these NEU finned motors pictured 1515 1.5d/f, 1515 1y/f

Water doesn't need to come screaming out in order to cool the system. For instance with the OSE jacket on a stock super vee the motor runs much much cooler than the stock silicon jacket. Even thou there isnt a fountain of water shooting from the outlet.