I recently raced my RC10 at a club race. I took my fully decked out goldie, all modern electronics, brushless w/boost 17.5 motor, lipo, spektrum...full tilt racer. Pushed like a dump truck. So I grabbed my back up car, my powdercoated black car. Novak T1, blue can Monster 27T stock motor. Tossed in my lipo & spektrum receiver and hit the track (oh, Futaba 3003 servo). TQ and the win in stock buggy...
I didnt do as good with my Mod racer, 13X2 and Cyclone TC2 speedo...4th overall
Either way, both cars performed flawlessly. But they will give way to brushless, I dont have a lathe or any of the stuff to maintain the old brushed motors anymore. They will retire to basher duty until the finally die.