Thanks for responding rustyus .
I purchased the exrun combo package .
140 amp xr8 sct esc with the 3660 sensored brushless 3200kv .The system was put in a losi rock rey 1/10 scale .
I think you could be right about asking to much from a 6 cell but there is just 1 thing that confuses me. When I first installed the system I took it to work the next day to test out with a battery I had charged the night before. I was able to zip around with no issues for 5 to 6 minutes before it would start to cut out .I figured the lipo cutoff was the cause . at the time I did not have the program box .
after programming the esc is when it started this . Also the car, when it did allow me to get to full throttle, it would pull hard left and after fooling with the settings again and using a fully charged battery it started to pull to the right ..and again, when I first tested it out it tracked totally straight .
hope I haven't confused you too much ..electronics are not my favorite part of the hobby .