top speed rustler project

hey guys im going to be rebuilding my top speed rustler i have. currently its running on a vxl motor, mm esc, 4 cell lipo, and a ccbec. its very fast. i have not gotten a chance to find out how fast it really going. (no radar gun) but im trying to bet 82mph and that was with the same setup. so i want to build it differently so i can just go way past 82mph. here is the setup im planing on doing

6xl motor
mmm esc
6 cell lipos
revo gearing with mod1 pinions


I just had one question. i know that i well be over reving the 6xl motor by like 20000 rpm. but you think it should be able to hold up if i only run it for like 2 speed runs. at a time.

thanks!.