firstly you may want to look into buying the Scorpion motors and ESC,s . they are both cheaper and better than the E-FLIGHT brand. i have the E-Flight Extra 260 and use the Scorpion 3008-32 outrunner with matching 35 amp ESC running 11.1 volt 2200 mah lipo and the apc 11 x 5.5 e prop, great combination . Scorpion have a great variety of different sized motors and esc,s so have a look at there web site for more info. good stuff.