Scar, you can get the 180 motor for the Rocket Racer
here. Any 7.2v pack for the Micro RS4 will work. Or, you could go to
www.blindbatts.com and order an MRS4 pack that has been tested in DRR's before. It is true that a DRR stock ESC will handle 7.2v and a 180 motor. If you want to go any higher though, you will need a better ESC. I recommend the Team Orion Flash. It looks pretty good and is tiny.