Hey, thanks for the great reply, I used the motocalc to get the info on the motor,gearbox,and a battery. It told me to use a 8 cell Sanyo 720 NiMh battery. The gearbox and motor are http://www2.towerhobbies.com/cgi-bin...?&I=LXWK47&P=7 .....mistake speed 400 motor! I'll go and edit the first post. Thanks again