OK I know something
I have Truggy XT8 With MMM 2200KV combo geared to 42mph on tight track 5000mah battery is barely enough for 15min Truggy weight is ~4410g with Zippy-H 4S1p battery, so if you have heavy finger it can be not enough for 15min pit stop.
Second setup what I built is Xray XB808 with MMM 2650KV combo. Car was geared to 38-40Mph same tight track experinced driver not heavy finger. Weight was 3400g with 4900mah 4S1P Rhino battery. With easy do 15min pit stop.
Hevy finger makes Huge Difference. With 10min of driving with nitro stile my truggy can consume 4200mah. With restrained style finger like in on-road truggy consume 3100mah.
Sorry my englis is bad, but I hope that it will give you some picture.
Great info - thanks! Does anyone else have any comparisons? I just bought the new XB808 and want to make sure I get two batteries that will make a 30 minute main and still fit under the body.
Here is conversion xb808 what I made for this guy http://live.hot.ee/gallery/show_gall...umbs?id=310457
Used narrow battery from HobbiCity. Idea was to put battery maximum close to ground and close to the center and ESC too