Motor discussion. Are 6374's worth it?

[professor_shartsis]

@ctincristy

The question is what would be the difference between motor performance if they have the same specs all around, besides dimensions and power, while being constrained by the battery (which is the case for most boards).

here’s some info from a different thread:

@professor_shartsis

here’s what happens when you double the resistance with the same KV during full throttle acceleration…

efficiency goes down (green line, top left chart), ohmic motor heating doubles (90w -> 180w), battery amps increase (black line, bottom right chart), acceleration remains identical, top speed is nearly identical.

(50v battery, 0.025ohm vs 0.050ohm, 100kv, 100mm tires, 1:1 gearing, 100% throttle, %95 max duty cycle, 60a motor current limit, 60a battery current limit per motor)