Revo and 1515 2.5d
 

How do you peoples think a e- revo geared 65/18 will run with mmm and above motor with rc monster c-tech 5200mah 11.1.

I assume that you mean two of those packs in series for a total of 6s. Thats pretty conservative gearing, less than 35MPH. I have run that motor in my revo on 5s geared higher and it's fine. That setup should give you low temps on everything. I would gear it up a little higher though, either step up the pinion or get some smaller spur gears, I'd recomend getting a bunch of different spurs since they are so cheap. Anyway you do it it will run just fine, it's an awesome motor

I had a erevo 15152.5d on 22.2, 54 spur and 22 pinion with badlands, and loved the setup. lipos were FP 25c 5000, and the run times seemed like forever 40+ min maybe.
I currently run a 1515 2.5d on 6s in my lst2, and again a great setup.