Runs fine in my 10.5lb Jammin X1 Truggy. Just a basic MMM 2200kv combo. On 3S2P or 6S1P the weight is 10.5lbs. On 4S its 9.8lbs.
Running 18/62 gearing because it has a huge spur gear. But since its happy with 18/62 I'm swapping over to the 48t buggy spur and dropping to a 14t pinion. It'll keep the ratio similar.
62/18 = 3.44:1
48/14 = 3.43:1
Almost identical gearing and it'll lower the center diff, straighten out the CVD angles, and since my ESC is mounted on a platform attached to the center diff the ESC will get lower too. Win/Win all around.
So far I've clocked it at 64mph, however it unloads the front tires extremely bad, even with the taped VTR rims on the car which balloon much less. I have 100k in the center diff and even with the unloading it wheelies all the time on 6S, its a chore to keep the nose down. Approaching max speeds. So I'm not sure how much power is being lose to the front wheels spinning. I may have to buy the parts for a center spool if I want to do speed runs and keep the front tires alive.
At the track its perfectly happy to run on 3S and 4S all day long. 3S lets me keep up with all of the nitro buggies, and use my twin 3S packs in parallel for 3S 10000mah.
Temps seem to stay in the under 120* for everything. The highest I've ever seen the ESC was on extended 6S speed run attempts and that was 142*, fan never kicked on. But I do have a MASSIVE cutout and the ESC is mounted directly in the airflow coming through the body.
Below pic is without the ESC, but otherwise everything is present. 10.22lbs.
http://gallery.me.com/thirdgen89gta/...13284054320001