tank tread kit ??

i have two v-5 kits and a vexplorer, i have the tank tread kit for vexplorer,but it is very slowww, and not much better at climbing ect than the wheels,would a tank tread kit for the regular vex v-5 kit be any more powerful or fast ? what about with larger vex motor the 393 ? thanks

i would imagine that a 393 would help with the strength but they also come with extra gears to be changed out if you want more speed rather than power. what motors do you have on it now?