ORIGINAL: fusebmx13
A 2s pack is not going to be faster than a 7 cell nimh. A nimh pack has more voltage at the start than a 2s. Although the 2s will last longer on the same performance.
It will be faster than a "subpar" 7 cell nimh for sure. There's more to it than volts, is about the amperage the pack can put out. I'd just like to hear the results from using the 2s lipo...