[rhylsadar]

hi
the e zilla has smaller diffs that look like those of the hpi mt2. the gears in the center gearbox look very much like the e maxx stock. i have seen pictures of the open diff and the open gear box.
i would definitely not propose a XL feigao to put in the stock e zilla. i do not own one but i am pretty sure it will not hold up long.
i think your first proposal with the 9L would be much more of an appropriate setup. the 9L is rated with rated at 68A. on accelaration it might easily be more. so with the 7020 you might be very much on the limit. a 9920 would be safer so to say. then maybe you could also think about a 8L.
with 12-14 cells that sounds not bad to me as the e zilla is pretty lightweight.
it is difficult to say what hopups are coming for the e zilla.
as for the savage you can read much here in the forum.
bye
rhylsadar