Some type of heatsink, fan or not, always helps tremendously. Those Integy ones are made for 540 brushed motors so I don't know how much they would help with a large brushless motor. You should try the RC-Monster Heatsink. Lots of members have used it with great results. You can always put a fan on it too if needed.
Last edited by What's_nitro?; 09.14.2007 at 06:54 PM.