[lincpimp]

I see some good info in this thread and some not so good info...

A higher C rated pack will provide more punch as noted. Your current cells are around 12c, so you have close to 100amps cont available. That is pretty close to what your setup should draw. Very few 4s setups in heavier vehicle draw less than what a 100amps cont battery can provide. (I do understand that the average drw will be much less than 100amps, but factoring a fair number of accel spikes and understand that lipos have a "duty cycle" of sorts leads me to believe that most 4s setups need a 100amp rated lipo min)

Also, having a higher c rating will not necessarily lead to lower pack temps. The 30c enerland cells run hot.

A correctly sized pack is very important to building a good setup. Problem is that the retailers have the specs all over the place, so trial and error are the best bet to find good cells that are correctly rated.