Do we need 6-8poles motors for 1/8 ep?

[superek4]

hi, Do these motors draw more amp?

presently Neu. Tekin & medusa are using 4 poles. I was recommended 6-8poles? Will it work? the motor will be huge & amp draw very high?

[LiqrSicc]

Originally Posted by superek4

hi, Do these motors draw more amp?

presently Neu. Tekin & medusa are using 4 poles. I was recommended 6-8poles? Will it work? the motor will be huge & amp draw very high?

Who makes 1/8 6-8 pole motors?

[suicideneil]

The size and kv of the motor (amount of copper windings) will determine current draw, the pole count in my mind has more to do torque. but I'll let someone smarter than me answer that one.. :/

[TexasSP]

Technically 6-8 pole motors will provide more torque. But really it depends on what motor you use.

The neu's and other 4 pole motors provide plenty of torque for 8th scale. I really don't see what the advantage of going to 6-8 poles are going to be, especially since the market and availability is rather limited.

[superek4]

My lhs was saying he is testing some boat motors 6-8poles about 1900kv can run 1hr non stop wo burning.

I am skeptical

[brushlessboy16]

Originally Posted by superek4

My lhs was saying he is testing some boat motors 6-8poles about 1900kv can run 1hr non stop wo burning.

I am skeptical

If I put a 4s 20k pack in my car, I could too....

[pinolelst]

Aren't multi pole motors (more than 2) more efficient than those having only 2?? Seems in my boats the more poles the cooler the running

Steve

[jsr]

Higher poles have more "available" torque. It doesn't mean all of it will get used in the application as it depends on the load that's presented to the motor. I think the advantage of higher pole motors is that you can use smaller motors that provide enough torque to move the heavier 1/8 scales around. A 1/8 buggy isn't that bad, but a 1/8 truggy and especially 13+lb 1/8 MTs can require quite a bit of torque to push them around efficiently. I think as you move higher in pole count, you can move down in size, which has the advantage of weight and space savings on the truck.
I've been looking at the 36x56mm 6-pole on Tower. I think it would move a 1/8 buggy just fine.

[BrianG]

I think the advantage of a higher pole motor is that you have less chance for ESC-damaging cogging. Having more poles means that each pole has to move the rotor less distance. So, it helps compensate if the setup is overgeared.

[lincpimp]

Both mega and neu make 6+ pole motors. Not sure if they are any better than the 4 pole motors that most use, but I can say that from experience that the 4 pole motors are better than 2 pole motors for heavier vehicles.

No idea if they are more effecient but they should make more torque. As far as using a larger diameter shorter length motor over a smaller diameter longer motor it makes more sense for the large range of rpm that we encounter to use a smaller diameter longer rotor. It will be able to accelerate and decelerate faster than the larger diameter shortor rotor motor.

[littlegiant]

Originally Posted by lincpimp

Both mega and neu make 6+ pole motors. Not sure if they are any better than the 4 pole motors that most use, but I can say that from experience that the 4 pole motors are better than 2 pole motors for heavier vehicles.

No idea if they are more effecient but they should make more torque. As far as using a larger diameter shorter length motor over a smaller diameter longer motor it makes more sense for the large range of rpm that we encounter to use a smaller diameter longer rotor. It will be able to accelerate and decelerate faster than the larger diameter shortor rotor motor.

Does a 2 pole motor accelerate or deccelerate quicker than a 4/6/8 pole motor?

[Unsullied_Spy]

Originally Posted by littlegiant

Does a 2 pole motor accelerate or deccelerate quicker than a 4/6/8 pole motor?

2 pole motors do spool up faster, yes, but generally speaking a 4 pole motor can pull taller gearing so in a way they cancel each other out.

[littlegiant]

Originally Posted by Unsullied_Spy

2 pole motors do spool up faster, yes, but generally speaking a 4 pole motor can pull taller gearing so in a way they cancel each other out.

Thanks for answering my question.

Is the difference very obvious? Do you have any experience with 6 or 8 pole motors?

[Unsullied_Spy]

Originally Posted by littlegiant

Thanks for answering my question.

Is the difference very obvious? Do you have any experience with 6 or 8 pole motors?

No prob.

I notice a difference between 2 pole and 4 pole, yeah. It isn't huge, but if you're drag racing the 2 pole will most-likely take the cake. I love the feel of the 4 pole motors in my trucks, they spool up fast enough to flip it over (in some cases even do a standing backflip) and the torque is insane. The only 6 pole motor I've ever run was in a boat and the added torque was nice. I've since gone to a larger 2 pole motor and I'm not convinced that the bigger 2 pole motor is any better.

[BrianG]

Another consideration is that the more poles a motor has, the more the ESC has to commutate and may hit a rpm limit.