...I know it doesnt need 150amps but my flightmax 5000mah 20C was hot after abit of time, and i dont wanna take chances with lipo;)
Really?? Do you have it geared abnormally high or something? This is a 10th scale truggy with about the same power requirements as a 1/8 buggy, so it surprises me that the 5Ah 20C pack was hot.