Eries Picrew Maker. During a race, the pit crew is responsible for changing tires, refueling, adjusting aerodynamics, checking and repairing parts, and getting the driver. The event was cancelled for 2013 due to lack of sponsorship. Try not to blink.here's our collection of the best stop in june.nascar's fastest pit crew. Four races into the 2020 nascar cup series season, here are the strongest pit crews we've seen so far, ranked by nascar.