+1 on the Scorpion 2221-8. I have 2 of them andthey're great motors. Great power and easy on batteries. Good price too. Also, check out the Scorpion esc's. I've been runninga 45amp Commanderin one of my 450'sfor over a year along with a CC Phoenix 35 in the other. Prices my have gone up some but I paid about $85 for the CC Phoenix and $60 for the Scorpion. All my future motors and esc's will be Scorpions. Alan