Originally Posted by
MaxRain
There is lots of truth to this explanation..
In my own testing, if you are reaching temps of 130f with a fan on the motor at the end of your race running with 80% efficiency, it gives you a safe operating window in case the fan stops cooling the motor for what ever reason. Testing without a fan, I have seen temps reach 155-160 with the same efficiency.
yea, it can be a pretty big difference. but using the efficiency per second you can figure out what the temp will be with a fan and without and pick what you want. liquid cooled allows you to dissipate about 10 times more than natural convection.
Once the heat management and efficiency becomes the “prime directive” power almost becomes irrelevant. A result of thinking about heat per second is that once you do it you learn how to think about torque per second rather than overall power and you have the right power available when it counts as a result.