If you didn't read my other post, i run a Zippy 40c 4s 3000 mAh in my buggy and and makes 10 min. mains on an indoor clay track with ease. Setup is 8ight/tekin 1900. Temps are motor: 110-120F, battery: 90-100F
Check out my custom converted 8ight:
Sub 7lb, lowest CG of any 1/8 buggy