[coolhandcountry]

Gearing higher will make it worse. I had the 7xl heat my controllers up pretty good. You could look in a 9xl. I have run them on a 7020 with no thermal. The problem i see with quark is the case is so smooth it has no fins on it for heat transfer. You could go down in gearing and up in volts. Put another orion pack on it for some get down power.