Anatomy of a pit stop
Fast and talented drivers also need quick and skilled pit crews to help them win races.
Seven crew members are routinely allowed over the wall during pit stops per NASCAR rules. At times, NASCAR will inform teams that an eighth crew member will be allowed over the wall for a pit stop with the responsibility of cleaning the windshield. An average efficient pit stop that consists of the changing of all four tires and a full tank of fuel can take anywhere between 13 and 15 seconds. The amount of pit stops during a race vary because of numerous factors -- race length, caution flags, ...
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