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

[snellemin]

You don't see dragracing(2 seconds and less) being won by 4 pole or higher motors. Some are experimenting with smaller 4 poler motors and having some success. But this is mostly due to the smaller diameter rotors.

I read this on rcgroups not too long ago, posted by murdnunoc
" high pole motor spins slower at max frequency because the motor turns a smaller amount for each pulse. A two pole motor will spin much faster for a given frequency of pulses because each pulse pulls the magnets a farther angular distance."

[_paralyzed_]

^^^^I'm willing to bet those 2 polers have twice the kv(rpm/v) as any 4 poler available.

What was stated above about frequencies may be correct, but it still comes down to kv and voltage as to how fast a motor will spin.(but not how quickly)

The "max frequency" thing has me wondering. Do we ever "max out" the pulses from an esc? Maybe BrianG or Pdelcast can answer that one. Regardless, a 2 pole would be twice as fast as a 4 pole, but at operating frequency that would be milliseconds.

So, in conclusion, maybe "on paper" per the "max frequency" theory a 2 pole would spin quicker, but in the real world human reaction is slower than the advantage so it's a wash.

Maybe snellemin's experience in the real world of r/c drag racing says it all, but the kv's would need to be the same to make an a/b comparison.

Hopefully someone with answers will chime in.