brushless 1/5 4wd conversion about to begin! couple questions. - RC-Monster Forums

Ryu James · 11:32 PM

Quote:

Originally Posted by redshift

IF gearing is producing the torque/speed you want, then it's time to reconsider your motor mount. The motor mount, while open, is still thick. I don't think you have one-quarter of the fan that motor needs... and the mount may be acting as an insulator more than a heatsink. You have enough of a hole to use a larger fan, and I would consider one on either side (if you have the room) blowing inward, so that the top is just an exhaust. The fins can't do their job in a semi-enclosed mount like that IMO.

If you have to make more relief for air around the inside, it won't show. But it could be a big help.

Or just wait for colder weather lol... won't be long!

hmm....yeah i like the gearing as far as performance and speed. its definitely fast enough....i dont think its the motor mount though....although it looks beefy it is not thick. the face is only .15", just enough to allow for a flathead screw, and the sidewalls are only .10" thick, a couple millimeters literally. the corners are the thickest. i could chamfer those but felt it was unnecessary.......but i do have a larger 60mm fan that i had planned to use but just threw the 40mm on cuz i didnt have to drill any holes. i had considered mounting the 60mm fan so that instead of sitting square on the flat part of the mount it would actually sit so that half the fan blades are over the hole to cool the can of the motor and the other half is over the front endbell to provide air to those holes in the endbell allowing the motor to breathe better and perform better....and most likely be cooler. and i have compared the 40mm and 60mm fans and teh 60mm definitley blows much more air. i will give it a shot but i would rather eliminate the cause of the heat (gearing, weight, kv, etc) rather than just strapping on bigger and better fans.

i am gonna put in an order for a Neu 2220 2y 550kv motor next week. not necessarily to fix this issue (although i will try it in the ramp) but to prepare for the baja conversion and i wanted to get it first to run it in this rampage to see the performance difference over the 2215.

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