I've got a Novak XBR and a 17.5 in my RWD TC. I've got the latest software in my Sidewinder and it's mounted in my KX1 4WD TC. I would like to have a motor that would run like the 17.5 for the 4WD. I also have a Yokomo YR-F2 FWD with a brushed 27T stock. I'd like to be able to compare the 3 with similar power systems. Thanks, Don