Evan, I dont know what your doing wrong but I get 475000 on a 4.7 X 4.7 , and just over 50000 with a 4.5 X 4.1. Try going to Neumotors.com and use his calculator. I doubt the 1115 1D [5700 kv ]motor, the 4900 3s Neu batteries are even in motocalc.

Mark