These cars compete in a 1/4 mile (0.4 km) race and complete it in less than 4.5 seconds at upwards of 330 mph (530 km/h). A Top Fuel dragster accelerates from 0 to 100 mph (160 km/h) in less than 0.8 second, subjecting the driver to a force about 5.7 times his weight. This acceleration takes less than a tenth of the time needed by a production Porsche 911 Turbo to reach the same speed. A fuel dragster can exceed 280 mph (450 km/h) in just 660 feet (0.2 km). The full race distance is 1/4 of a mile, 1320 feet. For further information and standards for drag-racing, including safety requirements, see NHRA.
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At top engine speed, the exhaust gases escaping from the open headers produce about 800 pounds-force (3.6 kilonewtons) of downforce. The massive foil over and behind the rear wheels produces much more downforce, peaking at around 12,000 lbf when the car reaches a speed of about 325 mph.
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The noise produced by one of these machines can cause deafness in extreme cases. It is customary for the full application of power to cause everyone within a half mile to cover their ears. Many spectators wear both ear plugs and earmuff-style sound deadening devices to protect their hearing.