I just got my Raze Buggy running this week and it has a 36-60-2000 Medusa in it that I will be testing a few differnt esc's, batteries, and gearing with. I'm going to keep the gearing for ~40mph maybe 45mph (maybe a few speed runs if the motor stays happy) and check temps all around. I don't yet have an eagle tree setup, but will soon.
Right now I've ran the buggy on 5S and 6S lipo with temps no higher than 110f on 6S after a 10-12min run of mostly WFO (for those that don't know that mean full throtle

).
ESC's I'll be running it with are the typical MM/ bec on 4S, MMM on 4S -6S, and a hobby wing 80a on 4S.
-Brian