HK lists the motor(s) as 1100 KV, you could of course check this out with kv meter available from, wait for it.......HK! As far as getting 800+ watts out of it, it may be possible however, this is a $30 package deal and.......good luck!
BTW, I built the Turnkey Bugatti, flys well and looks great in the air! Most comments after landing are "that swept forward wing thing just looks wrong!" Gotta love it!
Michael (if your not fryin, your not tryin!)