One thing we have found with the Monster motors to get more torque out of them is to put a timed cut on the brush but put it in backwards...To take timing out. It will knock off around a 1000rpm but will bring the torque and power up.
Hope this helps.
Eric Anderson
Putnam Propulsion
Eric,
Mind giving a little more detail on how this is done? Thanks man. I have heard different things and am somewhat confused...