Originally Posted by bertrandsv87

2.5t boosted geared at about 10.0fdr or 4t brushed at 10.85fdr for indoor carpet...... Very fast, yet manageable...
The 4.5t boosted at 7.5fdr has too much bottom end torque, and would just keep spinning the tires: you want a lower gear with a less torquey motor, but with more power and acceleration....
Also the motor brand is very important: stay away from the el cheapo brands that will overheat your esc...