Here is my sc8 total conversion to full electric. It has a Mamba Monster combo, Digital servo and powered by a 4s 4800 lipo. I get around 25 to 30 min. run time.
Associated B4,B44, Associated SC8 and RC8 both Converted, Z-Car Converted, Traxxas Slash / Mambas and Madusas in all of them along with Hitec digital TG servos.