It is evident to me that my Mamba 7700 motor will not push a 5-8 lb car without killing the batteries, so after some research I have put the following together. Please let me know if this combo will properly propel my Super RS4 to the 45-55 mph range.
Castle Mamba Max ESC
Medusa v2 36x50 3300kv Motor
A123 4S1P 4600 mAh
Gear ratio - 2.16
Spur - 44t
Pinion - 15t