I've ran a Feagio 6xl (2770kv) in my vxl slash on 3s not to bad. A little low speed clogging, and the whole truck leaned to the left due to the 70mm can hanging out the side. VXL ESC was getting a little hot too(180f). Went with a medusa v2. Nice collection, No AC blows, For spot cooling I run a Pep boy's ac unit on wheels in my garage.