1515 neu motor question
 

ok can any one tell me what would be best a finned 1515/2.5d
or the smooth version
is there any diffrence in the way they keep cool
or does the fins make no diffrence
i do have a finned type useing on a old emaxx type g/box and it makes it difficult to lean the motor over to use a smaller pinion

About 20 degree temp difference with the finned can over the smooth

How hot is it where you live? If it's not to hot the smooth might be nice for more gearing options. I live in alaska and the summers are about 70deg not very hot at all so the smooths are appealing to me since I like using the smaller 13-14-15 tooth pinions. Plus if you do get a smooth and it runs a little warm toss a fan cooled heatsink on it. Smooth cans are real nice!

i live in england mate so it dont really get that hot over here either.
smooth can sounds good to me mate even if i have to get a fan cooled heatsink to put on it
cheers mate

lol nah the fins are just there to look pretty :rofl:.

Nah but seriously, same idea as adding a heatsink, except a heatsink will be much less efficient - you can improve the efficiency of a heatsink by using some heat transfer compound like what they use for cpu heatsinks and stuff, it makes a huge difference. For example my feigao with RCM heatsink, without thermal paste the heatsink stayed cool while the motor was cooking. Add a bit of paste and the whole motor and heatsink are just warm.