7xl hot need better set-up?

[Serum]

Yeah, an 8XL would run cooler. You could consider using the rc-monster heat-sink as well. The 8XL will give you a tad less power though.. It's geared okay.. that's not it.. Sure you have got no binding somewhere?

It's geared for about 30mph now, which is nothing to worry about. Perhaps if you geared it taller, the setup would run cooler.. you could try a 20T..