***__ The 1/8 Onroad Think-tank __***

[samwong]

Thanks for your data sharing...

Regarding the temperature problem in motor.... I have some thing not certain...

1. Given other things the same, Higher voltage 6S gives same MOTOR operating temperature as 4S. My thinking...

As either 6S or 4S, the motor rotating force depends on the current on the wiring of motor, and the more current through the wire, the heat will be in proportion. So the heat of motor should relate to Current from ESC, but not related to the voltage of Lipo.

So 6S or 4S will be the same for the Motor Heat issue.
Please correct me.. if I am wrong.

2. The faster the acceleration, the higher the temperature.

As force required is larger for higher acceleration, so current or heat are also larger.

If I adjust the driving style a bit, softer acceleration, that can help the motor heat problem. As currently the acceleration is like a rocket... faster than a 1/12th pan car ..... too much for me.. and others..


3. Braking also gives additional temperature rise.

Heavy and frequent brake ... can make motor suffered additionally.


I will have another trial run with Losi 2100kv ( Diameter is 39mm, maybe torque will be larger ) , 4S and 44T/19T and see the result.