Originally Posted by Bhodi11
I just took it out for a run in front of my house. I ran it pretty hard for about 10 minutes. I checked the motor temp at the 10 min mark and I got an astounding reading of 259 degrees! Also it was far from silent. There is a pretty aggressive pitch to the sound when running wide open.
Look/listen to Border r/c video above. That sounds about right.
Thought we were talking about esc heating up? Is esc temp ok now?
Fan(s) should keep motor temp under control. Voltron has a good dual set up on his motor(pic posted). I have seen Tekin motors approaching 300. Motors will be short lived much above 180. Get some air flow also. I have 2 ducts from the windshield, one to the esc and one to the motor. Maybe some grill cut outs or brake ducts for the Snake just like the real race cars. These heavy cars really heat up things if you drive hard and use push brake. My esc will still thermal if I'm too hard on the brakes. Make sure zero or very little drag brake. Limit max braking in software or better yet at Tx braking end point. Using Tx end point allows you to dial in max brake on the track. I never have tires lock up under braking. My Kyosho GT2 conversion has mechanical brakes so no braking/heat issues there. Some have added mechanical brakes just for that reason.
Track temp also may require different gearing. When track temps are 130-150 I use a shorter gear.
I would zero out the timing. Doubt if you'd notice any performance change.
Are you sure your temp checker is accurate? I have seen those cheap ones way off. I have had some. Spit on finger placed on motor would instantly boil off at that temp. That's the method we used back in the day. Spit should slowly disappear.
10 minutes is way more than I can run hard using 6800 70C 4S lipos. Which tends to confirm your shorter gearing.
These cars can be frustrating about heat issues. I have had several heat issues and have spent hours/days sorting things out. I am lucky that I live very close to a great track where I can test. All members get a key.
Click on Aerial movie of track:
Is this an offroad used motor? It is cleaned out with good bearings? Just a last thought.