Your not going to get faster with dual 2200 combos, you will just have twice the torque.. You need 1 motor with going higher cells. Or gear to the moon. But gearing to the moon you run the chance of overheating. You could run the 2 escs to 1 motor 4s pack through each resulting in 8s but the 2200 will need replaced with 1 of the other 2 motors you spoke of. I would just sell what you have and play it safe and get a CC monster XL combo and go as many cells as you want.