Originally Posted by
nikos2002
DaveG - the brake settings can have an effect on the esc temp but not as much on the motor temp. Motor temp is more driven by gearing, throttle settings and run time. And also on some 4wd buggies, air flow from any holes put in the body. If you are running a lower turn motor (I think I saw you post before 6.5), you might want to have a hole or two for air flow as well.
Well, I am now down to:
35% punch
9600 throttle pwm
Air holes AND internal flaps to guide the air to the motor
Fan alongside the motor
2 teeth lower than original pinion (still looking for the final drive ratio on the space, sworkz 4wd buggy)
Brake strength about 80
5000 brake pwm
Race blinky mode
20 degree (minimum) motor timing
And I am still finishing at 6mins at 175 on case and 190 internal! That's in a building at 60 degree ambient temperature.
Drivetrain is free (not the best but not binding), mesh is fine.
It is also still a rocket on acceleration (top end is only so so with the smaller pinion), but I daren't drop even more punch because it is pretty dead at very low revs now (huge power in the middle).
Don't get me wrong guys, I don't think the "problem" is the esc at all, it's just the esc is the thing with lots of settings to try and help haha!
So unless I am missing something I am pretty much out of things to try to cool it. So dumb question but should a 7.5 run cooler or hotter!? I can live with the lower power output if I can keep top end!? Does any brand motor have a good rep for running cool?
Having said all above, I did win our club race tonight so that's something!