The command to fire the twin-turbo charged V6 engines was given at 11:35 am (CDT) The only drivers on the Firestone Racing Primary Tires (Blacks) were Rossi, Newgarden, Chilton, Pagenaud and Kellett. The rest of the cars were shod with Firestone Racing Alternate Tires (Reds).  The ambient temperature was 71F and track temperature was 101F. …