On February 13, 2012, it was confirmed that the team will run with engines from Chevrolet. Carpenter stated that he was intending to run a full season, unlike in previous seasons, where he ran the ovals, and had also decided to drive with #20, the number he drove with during his tenure at Vision Racing. The team claimed its first victory with Carpenter winning the season-ending MAVTV 500 at Auto Club Speedway, and ECR became the only one-driver team to win a race in 2012. In 2013, Walker left for a position with IndyCar. Eventually, Carpenter scored the pole position for the Indianapolis 500. He finished the season sixteenth in points, with a best result of second at the final race at Auto Club Speedway.