I believe this was brought up on the e-savage.com forums and they were compared to ammo motors. About the efficiency of a feigao I think. Around 800 watts.
I ran the older aquacraft motor and it only liked 4s, got real hot on 5s. Tried it in an emaxx and a ls10. Seemed to need the watercooling. Lots of torque though. If you want 6 pole get a mega, better motor.