The race may not always be to the swift, but, like Damon Runyon said, "that's the way to bet." With auto races often decided in the space between seconds, every fraction saved during pit stops is time in the bank. That means race teams' pit crews are as much a component to winning as is a set of tires, an engine or the driver. Tomorrow, the best crews in Nascar's Sprint Cup series will square off at the Sprint Pit Crew Challenge in Charlotte, NC. Twenty-four teams will compete over the whine of air wrenches for the title of fastest pit crew in the business.

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For the sake of fairness, all Nascar vehicles must conform to strict mechanical and structural regulations. But when Dale Earnhardt, Jr., opens the season at the Daytona 500, he’ll have one advantage over the rest of the field: the most advanced racing suit the sport has ever seen.

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