C50 maxx motor vs a hacker 9L or 10L

[luvsrc]

hi guys i currently own a hacker c50 maxx motor running on 12 cells , i'm planning to upgrade it to a more powerful motor, 12-16 cells, i have a racebomb chassis with maximizer diffs front and rear, supermaxx idler gears on the tranny , what do you guys suggest planning to race it on a short tight track, that will not give me any heat problems, i do own a shulze 18.97 speed controller thank you for any input:003: