Medusa 2000 in Erevo

I ran my 1500 60mm today 6s geared 20/68 and am getting really hot on the motor and controller after just a few minutes.. Is this too much? According to the speed calculator it's only 37 mph. I am using an mgm 16018.

(TexasSp)I read something else he wrote about it,but can't find it right now.What are you running it in?It might be fine for the track,but it kinda seems like they are a little happier up in the rpm range.