graphitedust- I assume you are the track you are talking about is Socal? That seems kinda small for a 8x1 for 12th scale. I would go to a 9 or 10 double, you will have slightly less torque and thus more runtime. maybe even try an 8x3 or 4 and gear it more agressively. also pick up some 3300's, that should help you out alot as well. and if that doesnt work try a reciever pack.