trialspower2
100 W
- Joined
- Dec 31, 2016
- Messages
- 108
Hello,
I have a couple of bikes, one with a 120100 50KV outrunner and the other with a 15470 27KV outrunner. After taking the gearing into account, both bikes have a top speed of around 40mph.
I was expecting that the 15470 would have slightly better performance. However this is definately not the case. The 15470 is massively struggling to make enough torque off the line and just does not demand the same amount of current per duty cycle as the 120100.
I am putting this down to the low KV, I think that the stator is saturating, expecting alot of bottom end torque off a low KV motor seems a bad idea, higher KV with more gear reduction seems better. So my intention is to rewind the 15470 for 50KV for a direct comparison between the motors.
I was wondering if anyone on here has undertaken the task of rewinding a 15470 and can offer any details/ advice before I start the process. My intention is to get wire that is double the thickness of the current and do half as many turns. But I am wondering how the motor is wired and what the gains would be from putting more copper into it etc.
Cheers
Danny
I have a couple of bikes, one with a 120100 50KV outrunner and the other with a 15470 27KV outrunner. After taking the gearing into account, both bikes have a top speed of around 40mph.
I was expecting that the 15470 would have slightly better performance. However this is definately not the case. The 15470 is massively struggling to make enough torque off the line and just does not demand the same amount of current per duty cycle as the 120100.
I am putting this down to the low KV, I think that the stator is saturating, expecting alot of bottom end torque off a low KV motor seems a bad idea, higher KV with more gear reduction seems better. So my intention is to rewind the 15470 for 50KV for a direct comparison between the motors.
I was wondering if anyone on here has undertaken the task of rewinding a 15470 and can offer any details/ advice before I start the process. My intention is to get wire that is double the thickness of the current and do half as many turns. But I am wondering how the motor is wired and what the gains would be from putting more copper into it etc.
Cheers
Danny