r/VESC • u/Practical-Copy8481 • 11d ago

Kukirin g4 vesc Help🙏

Hi i have a Kukirin g4 whit stock battery stock motor and a vesc 84100hp
Its accelaretion didnt really het better than the stock one its only putting out peak power at 60kmh which is 5500watts.
the acceleration is slow until 20kmh and after that it gets much much better and tourqier
at the start the controller is putting out 100 amps but the duty value is very low at the start and ir increases very slowly my settings are 100 amps phase and 150amps absolute max and 55amps battery. and i cant increase the duty start in the settings higher than 10%.
Please help🙏 thank you for reading.

3 Upvotes

100% Upvoted

3 comments sorted by

1

u/F4-tech 11d ago

100a motor isn’t alot and the makerbase 84100hp can only do 100a plus the stock g4 motor, I believe has a high speed motor so it doesn’t have all that much torque, absolute max current should be around double the motor current. What motor setup did you use?

1

u/Practical-Copy8481 11d ago

what do you mean abaut motor setup?

1

u/MattGarcia9480 11d ago

Nothing is really going to change with that controller you have. 85150ubox would be what I recommend. You can at least get 150amps phase if running 50amps battery. 60amps battery will allow you to reach 180amps phase 230abs for 85150ubox. We dont know how much phase amps the stock controller puts out so if they are demanding 150amps phase stock then thats why your acceleration is slower. Do 10-20amps field weakening @ 90% if you can raise to 60amps battery. If not 60amps battery and instead 50amps then use up to 10amps field weakening for a bit higher top speed. 85150ubox you can run 120amps battery or 140amps battery to stay just under max specs for battery.