I have the 80mm 2000kv motor in a 16.5 lb monster truck geared 54t spur,16t pinion and 7.5 inch tall tires....crazy power all the way around. I wanted the 1600kv but at the time Mike was out of them. Truck runs great on 4s, but uncontrollable on 6s.
The heatsinks are a custom extrusion - I have already laid out $thousands on the extrusion die and material. I am waiting for the heat sinks to arrive just like you guys - trust me...I want to sell them to hopefully make some money back! The 1st sample was incorrect, so the die had to be reworked. It is getting close. :)