i have a converted mbx5t running a mmm combo on a turnigy 4s 5000mah 30c lipo and it runs well.using rcmonster 14t pinions the esc and motor run cool(and fast).get 15 minutes easy out of a battery cycle.
associated rc8t..........e
tamiya f104pro,r,w.f103gt.tb02,ta02
nuova faor sf501
avatar is pic of what our cat does with empty boxes left over from rc purchases