I've said this in some other post, but adding another 2 motors of the same kind would make things too easy. Notice how only 4 motors are practical for drive trains? And they are 2 different types. Last year, you could have added the fischer prices and got about 2/3 more horsepower, but that's a challenge to do. Giving us 2 more drills gets the horsepower a little past 3, and it's pretty easy to modify last year's 4 motor to a 6 motor. FIRST wants to give us a challenge. If you want to make a better drive train, make one with 2 or more gears, or a swivel or whatever. If you are just going for more power and not complexity, ask yourself this: do you really want a battlebot? None of FIRST's games involve a robot that is only one big drive train. And if you are looking for an advantage while pushing another robot, you must remember the physics involved. A robot can only exert as much force on the ground as the wheels can permit. The equation is :
power on ground = traction of wheels x weight x power of motors
Since all robots are 130 lbs or close, it fully relies on traction and power. Most robots with 4 motors can drive up against a wall and burn out their tires, so it is the traction of the wheels that gives up first. Work on better traction, not more power. A robot with 2 drills and high traction will always beat a robot with 10 drills and medium traction. It's just a matter of how much of your motors' power you can deliver to the ground. But hey, I guess you can always dream about more motors
