[othello]

A buddy of mine was running his MBX5T with a Neu 2200kv, MGM 16018 and 6s2p A123 (around 5s lipo). His truggy must have been heavier than yours (Battery wheight around 900gr/almost 2lbs) and at the end he used a 13t pinion. During hot sommer days the ESC shut down due to thermaling and the motor reached up to 85°C/185°F. He used crimefighter tires also on rulux wheels.

Problem is the motor revs too high with 5s (around 40700rpm). A nitro motor revs between 30000-35000rpm. With a 14 pinion your gearing is 1:15,11 and without ballooning your top speed should be around 74km/h / 46mph. Way too fast for a truggy on a track and when pushed too hard temps will be high.

Your best bet is to decrease load on your motor and use smaller pinions. Cut holes in your body to increase airflow. I would start with a 12t pinion which should reduce speed somewhat above nitro truggy level.