3.8 Motor!!! (Score 1)

If you're not impressed with the speed of the stock MicroSizers/Bit Char-Gs, pick up one of these guys' 3.8 motors! TinyRC.com They are 38,000RPM vs. a 1.0 which is 10,000RPM. If that's not enough, you can always add a second cell for twice the voltage (take a look at the Forums on that site for more info!).