Motor Experiment

[Mike Caruso]

Mamba.
If your Tacon motor is a Y wind, & you have the timing up to say 15 degrees or so, you will need to turn the timing down to around 1 - 3 degrees for the Leopard motor, as it is a D wind motor & too much timing will cause extra heat & also not allow the motor to reach max revs. What timing settings did you use on each motor?

But some time ago, both myself and another club member did similar tests between 2 pole 3674 8Xl 2075 kv motors ( both FSD & Feigao ) & the Leopard 3674 2200kv 4 pole motor. Even with the adjusted timing settings the 2 pole motors were cooler & faster than the Leopard with the same props in the same boats. We tried them in both monos & hydros. You would think, as we did, that the extra kv & the extra torque of the extra two poles, that the Leopard would be quicker & cooler. But that's not what we saw. Granted, the Leopard should be able to swing a bigger prop too, but we didn't even bother trying that as we thought they would get even hotter.

Fluid.
I'd be interested in knowing where to get a KV checker too.

Cheers.
Paul.

Paul,
I want to spend some time with my Revolt motor 1800kv 4 pole. It makes sense to me to if you make higher torque you will develop more heat. I have seen some motor Dyno charts and it would be helpful if we had a way to measure our motors.
Mike

[Brushless55]

so if the extra mags develop a bit more heat with smaller props, what happens when we over prop with a 2 pole and 4 pole?

[MAMBA2200]

hey mike where did you get the kv checker

[Mike Caruso]

hey mike where did you get the kv checker

I don't have one I was asking Fluid about his if he made it or bought it.
Mike

[Mike Caruso]

so if the extra mags develop a bit more heat with smaller props, what happens when we over prop with a 2 pole and 4 pole?

I am not an electric motor Guru but I am thinking more poles less max rpm but stronger or higher torque at a lower rpm. If that is the case the 4 pole should out pull the 2 pole but the 4 pole will be limited as to max rpm.
Mike 'Still learning'

[MAMBA2200]

I don't have one I was asking Fluid about his if he made it or bought it.

o ok

[Mike Caruso]

Anytime