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-   -   rebuilding a 5700 two pole motor (https://www.rc-monster.com/forum/showthread.php?t=31988)

mwe-maxxowner 10.11.2013 09:51 PM

rebuilding a 5700 two pole motor
 
I have a mm with a 2 pole 5700 geared 15/90 in a 2wd stampede that I run on 2s and 3s. Power is insane, but it likes to get hot.

Would a 4 pole 5700 run cooler?

Is this motor rebuildable as a 4 pole?

Does the 4600 have similar characteristics on 3s?

I love the truck like it is. The thing screams and will pull the tires up all the way to 50 (guesstimated).

phildogg 10.12.2013 01:33 PM

I'm not sure you can get the rebuild kits for the 2 pole motors anymore, you would be better off with the short course 3800 4 pole on 3s. motor has alot of power and runs cool.

mwe-maxxowner 10.12.2013 08:56 PM

Does it have enough torque to gear up to speed similar to my 5700 and still pull wheelies at any speed? I'm kindof addicted to that :D

If also considered the 4 pole 4600 and 5700. Is there much difference between the 2 pole and the 4 pole, running hot wise?

I was just wondering if the 4 pole rebuild kit worked on the 2 pole can. I don't know a whole lot about the makeup of these motors.

BrianG 10.12.2013 09:32 PM

The CC 2 pole and 4 pole motors are not even close to the same. Just about the only things common between the two is that they are both in a can form factor, both have a rotor shaft, and have wires sticking out.

mwe-maxxowner 10.12.2013 09:59 PM

Could I expect a 4 pole 5700 to run cooler on 3s than the 2 pole, or just find another setup I like?

I just already know I love this truck with the 5700. It hasn't let up yet, though.

Dadx2mj 10.14.2013 09:53 AM

My 4 pole 5700 does run a little cooler than my 2 pole but not a huge difference in heat, the big difference is in power and torque. Also the 4 pole 5700 makes my MM ESC run very hot, much more so than the 2 pole does.

mwe-maxxowner 10.14.2013 01:37 PM

Okay, then that's a no go. The ESC is most important to me. These 1/10 motors are getting cheaper these days, but this ESC is too good to blow. Maybe I'll try a 3800 and see if it can be geared to my liking. In the meantime I'll see how much abuse this 5700 can take :)

RC-Monster Mike 10.14.2013 05:39 PM

If you like what you have but fear excess heat, drop a 5v fan onto the motor and power it with a servo lead from the receiver. Cheap insurance. :)

mwe-maxxowner 10.14.2013 08:49 PM

Heatsinks, fans, all already in place haha. I'm gonna try wiring a fan to full battery power. Little fans are cheap!

Dadx2mj 10.14.2013 11:27 PM

An aluminum tranny case in that Pede will cool the motor, IMO better than a fan and will last a lot longer. The FLM tranny case in my Rusty dropped motor temps 30º

Arct1k 10.14.2013 11:32 PM

Adding a cap pack and external BEC will lower temps a lot.

I would get a 4 pole 4600kv or one of the 3800kv SCT motors. The later were really cheap.

mwe-maxxowner 10.15.2013 08:41 AM

Quote:

Originally Posted by Dadx2mj (Post 427720)
An aluminum tranny case in that Pede will cool the motor, IMO better than a fan and will last a lot longer. The FLM tranny case in my Rusty dropped motor temps 30º



Wow! 30°, that would be worth looking into!

I also had no idea an external bec would help cool things down. Not sure if I'm proficient enough with soldering to add a cap, but becs are easy and cheap. I may do both, and if the motor ever does lay down on me try a 4 pole 4600.


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