best way to cool a motor

[matt6669]

Hey guys.
As you know ill be running a cordite/plett 290/30/6 in my rigger and i was wondering what way was the best to cool the motor.
i know there are quite a few ways to cool them so suggestions would be greatly appreciated.
thanks
matt

[Tony T]

Hey Matt, What I have done for my Plett is added a anuminum coil around the motor, and soldered brass tube on the top of the brush hoods to cool the brushes.. Works good..

[MikeC]

My 290/20/4 has the same thing and it works really well.

[AndyKunz]

Originally posted by matt6669
Hey guys.
As you know ill be running a cordite/plett 290/30/6 in my rigger and i was wondering what way was the best to cool the motor.
i know there are quite a few ways to cool them so suggestions would be greatly appreciated.
thanks
matt

Put it outside at night. That will cool it down.

Did you get a motor from me? It had cooling on it - but it never got hot to begin with...

Andy

[TomL]

What about those snap-on cooling fins the car guys use? There's no air flow inside a boat, but the extra metal can take some heat away from the can, then you just snap it off and put on a (pre) cooled one after a run. Or you put the fan on the fins to help the can cool faster.

how about putting a large diameter (3/8 - 1/2inch) water pipe through the fins?

[Dunk]

HOLESHOT RACING make a nifty little clip-on cooler that's water cooled. They don't come cheap. About $25.00 from Tower Hobbies, but I think I bought a few for alot less from the manufacturer.

[will_myster]

I cool my motor by applying thermal grease compound to the can of the motor then i aply the alluminimum tubing around the can. The thermal compound grease is the best way to conduct heat between the 2 metals, I have done this with good results and its not hard to do and it will make sure all the heat goes to the cooling coil.

[popop]

Toni T
Could you show us your setting ?

Tx

[Avenger]

this is kinda far out! but you can find a tiny tiny computer cooling fan, like the ones that go on the top of the prosseser somthing small like that and maybe you can find one w/ a low enought voltage requierment that u only need to put in 2AA batts, this is what i did for my t-maxx. or you coulf find a fan that can rin off the shaft some of the 4-cycle nitor engines have them running off of the flywheel, just my $.02 -Jeff

[Ian Williams]

Hi Matt, nice to see you back, how's the music going? Any how, brush coolong has most effect, with can cooling being less effective, but better than nothing. Both together would be good and i agree with Will, use heat transfer paste, messy, but does improve the efficiency of the coils. of course Plettenburg do manufacture proper cooling jackets, these work great!

[TomL]

Originally posted by Avenger
a tiny computer cooling fan, that you only need to put in 2AA batts, or run off the shaft
It's been tried, man. Electric fans with extra batteries are heavy (would require at least 3AA cells), and shaft-mounted ones use power that can be going to the propeller. A water-cooling system seems best, if you can use the drag-free method of the eco boats.

I checked into the Holeshot Racing cooling fins, and it seems to be heavy with its water resevoir, when filled, but you could work that into the boat's balance. Current Tower price was almost $30. I would prefer the fin-type with a couple of cooling tubes running through them.

[matt6669]

Thanks a million guys.
i think ill see if i can find the plett cooling ring you were talking about ian.
the music is going great we have our christmas concert this thursday i can't wait my section (trombones) are doing a solo its going to rock.
hope everything is going good over there.
have a good one
matt

[Pooley929]

Matt that is one cool avatar

[K.R.Joye]

I'm surprised nobody has mentioned cooling the brushes. For sprint runs like you will be making in the rigger all you need is brush cooling. Fine Design carries curved cooling tubes (or just make some)that fit the 30 series brush hoods. Warning,unless your experienced using silver solder i wouldn't attemp to add the tubes yourself.This is the most effiecent way to cool the motor for sprint applications. If you were to use that motor for enduros like offshore i'd run a coil around the can in addition to brush cooling.

[Tony T]

I'm surprised nobody has mentioned cooling the brushes.

K.R.Joye I did.. In the very first reply to Matt.. :rolleyes:

[matt6669]

hahaha
thanks guys
but you should all be complimenting dan from toobadd racing he's the one who made it for me.
he is in the process of making me a new one for my signature since don yelled at me becuase my other one was too big.
ps in the near future you will see my boats in those pictures!!!!
ohhh man that makes me wanna have summer right now.

but thanks again ill look into all these ideas
keep em coming

[Tony T]

Attn: Popop Here is a pic. Sorry the one cooling line is in the way. But I'm sure this gives you an idea.

[popop]

OK
Now I feel possible to use my Ultra 1300-8 in a Mono ...