I would go with a torque based motor like the Orion Core / Peak Hellfire or the P2k. The P2k2 also would be a great choice. Big Jim on
www.rccars.com can provide you with alot of help concerning motors as he is a premier motor guy.
If this is mainly for bashing, you may get more satisfaction running a 19 turn motor. Lots of zip but still controllable. I like the Reedy Quad Mag and the Orion Element / Peak Dynasty .