Help with ESC setup!

[lincpimp]

Lipo temps may indicate your gearing is a bit too much for them. I have not heard of EP brand lipos, but you may be pulling them a bit hard. The esc is staying cool due to good design and the fan. Your motor temps are a bit high, but you are running a buggy motor in a truggy. I would gear down 1 tooth and see if anything imroves.

Long grass is not the best thing to run in either, try your setup on dirt or the street and see if temps are any different. You may see a 10deg f difference or more just from getting out of the grass.

Sounds like your system is very close to being just right. I would experiment a bit more. I would not put a larger pinion on though, I can imagine that will just make things worse. 13t pinion would match the factory clutch bell/gearing, and that is generally a good place to start. 1 tooth can make a big difference.

Lipo's is more round 100deg/f and ESC 100-120 depending on outside temp.

Will try a 13t and see what happens.The lipo's is 5200 35c lipo's btw.