How hot can you run the cms 36-9000

[slash_48]

Just received my cms 36-9000 hooked it up to the mamba max esc. and ran the motor with no load for about two minutes varying the rpm. Temp after that was 130. Does this sound right. Battery 7cell nimh.

[dirt101]

motors get hot when under no load. the 9000 wasnt really the best choice for a slash, but castle recomends keeping them under 200. I say keep it under 180 and you should be fine.

[What's_nitro?]

Originally Posted by dirt101

Motors get hot when under no load. The 9000 wasn't really the best choice for a slash, but Castle recommends keeping them under 200. I say keep it under 180 and you should be fine.

Brushless motors don't take kindly to light loads. Brushed motors don't like really heavy loads. I believe CC uses unloaded ratings, so at least if you run it on the bench you aren't getting ~11000 kV, or something equally rediculous, which would make it much easier to over-rev the motor.

I hope you have some good packs to run that motor with. 9000 kV is gonna draw a huge spike of current when it starts up. If your packs aren't up to snuff then it's going to feel sluggish. If you decide to keep that setup in the Slash, adding another capacitor or two to the MM will help.

[slash_48]

I known it is not a good choice just want to see what it will do on 2s lipo for the fun of it. Going to try 13/90 for gearing,might be fun to play with from time to time.

why did you run it no-load? that can damage the magnets easily

[slash_48]

To make sure it works. Have snow and its about 20 degrees outside. Will test it the truck when it warms up some.

[slash_48]

I have max amps 2s 6500 30c hard case batteries. The setup won't be permanent,just playing around. When I buy the medusa that will be permanent. I only ran it for about 2 minutes maybe less and not at full throttle just to see if it worked incase i needed to send it back. To cold and snowy to test outside, hopefully next week.

[What's_nitro?]

Ok. That pack should be enough. Just make sure, when you do run it, that you check all the temps every few minutes to be safe.

[slash_48]

I will be watching the temps. I have a 5700 that I run also on 2s,3s and 7cell nimh. After christmas I will be getting the medusa 36-50 4800 v2,like to have different combo's to run. I also have a old novak SS 5800 setup.

[sleebus.jones]

5700's run hot in slashes, I can't imagine what a 9000 is gonna do.

[Semi Pro]

Originally Posted by sleebus.jones

5700's run hot in slashes, I can't imagine what a 9000 is gonna do.

my buddys 4600 ran hot, i cant imagine that 9000kv will last long

[slash_48]

Depends on your gearing,mine runs about 115 to 125 on 2s and about 140 to 150 on 3s lipos. Can't really test the 9000 yet,will let you all know when I do.

[slash_48]

I have a 5700 and the temps I get are 115 to 120 2s and 140 to 150 3s lipos, batteries 85 to 95, gearing for this is 17/86, 20 to 30 minute runs. I know the 9000 will probably run hot since it is made for touring cars,just want to see want it will do in the slash geared 13/90,that should help keep the temps down. Will let you know the temps once I am able to test.

[slash_48]

Well it's been awhile, I have the 9000 in the slash and have only been able to run it in the garage spinning doughnuts or driving slow. The motor is insane with the gearing I have on it 14/90. The temps so far have been good on the motor only 104 but the esc. 140 to 150 battery about 85. Will post more when I take it to the track. After this I will be testing the medusa 36-50 4800 v2 I received today.

[slash_48]

Took the slash to the track and test it today the temps on the motor after about 8 to 10 minutes were 137 but the esc. was 190 battery was 75. The motor over powers the slash a lot,not a good off road motor. When I got home I put the medusa in. I think I'm going to like this motor a lot.