[lincpimp]

From what some of the other members here have found, the 1d 1527 is an "amp hog" so it may be best to try to swap it out for a lower kv motor, and then run 6s. It will pull so big amps on 4s. You will have to run at least 2 4s packs in parallel, something like the 4500 30c enerland cell packs, to give you enough amp reserve. Not sure what esc you plan to use, even the MMM may not be enough...