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What's_nitro? · 09.05.2007, 08:01 PM

I believe the BK controllers have a Max RPM of 40k with 2-pole motors. You can certainly run motors with more poles, but there are things you need to know. A 4-pole motor will require twice the number of pulses from the ESC to operate properly at the same RPM as a 2-pole motor. So with a 2-pole limit of 40k RPM, that would be a 20k limit with a 4-pole motor. You could use a 6-pole motor as well, but the MAX allowable RPM would be way too low for use in a car/truck because you would have to gear really high to get any speed out of it. Now if you had a rock crawler, that would be fine.

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What's_nitro? Soldermaster Extraordinaire Offline Posts: 4,529 Join Date: Apr 2007 Location: Plymouth, MA, USA	09.05.2007, 08:01 PM I believe the BK controllers have a Max RPM of 40k with 2-pole motors. You can certainly run motors with more poles, but there are things you need to know. A 4-pole motor will require twice the number of pulses from the ESC to operate properly at the same RPM as a 2-pole motor. So with a 2-pole limit of 40k RPM, that would be a 20k limit with a 4-pole motor. You could use a 6-pole motor as well, but the MAX allowable RPM would be way too low for use in a car/truck because you would have to gear really high to get any speed out of it. Now if you had a rock crawler, that would be fine.