CONCORD, N.C. (AP) — NASCAR took the final step toward setting its 2014 rules package with a critical test session Wednesday at Charlotte Motor Speedway.
The test featured four simulated races with four configurations on the Gen-6 Sprint Cup Series car. Drivers had to attend a mandatory debrief with NASCAR following each session to give feedback on the aerodynamic, engine and suspension combinations.
NASCAR had 30 cars participating in the test, and planned to choose the configuration most favorable among drivers to test with a tapered spacer designed to reduce engine horsepower.
The goal of the test is to improve the racing at 1.5-mile superspeedways, which has been a stated goal of NASCAR Chairman Brian France. He was scheduled to attend the test Monday, but rain postponed it until Wednesday.
"Really what we're attempting to do here is to get closer competition and more passing, closer competition, the cars running closer in the pack, passing more with an eye for the fans," Gene Stefanyshyn, NASCAR's vice president of innovation and racing development.
"We're using various metrics to look at that, like the first to fifth time differentials, the time differentials between the 10 fastest laps, those types of things."
NASCAR vice president of competition Robin Pemberton said the goal was to use the data collected Wednesday to set 2014 rules "ASAP. Hopefully beginning of next week."