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Bracket racing is a form of drag racing that allows for a handicap between predicted elapsed time of the two cars over a standard distance, typically within the three standard distances (1/8 mile, 1,000 foot, or 1/4 mile) of drag racing.
A Suzuki GSX-R1000 at a drag strip – a 2006 model once recorded a 0 to 60 mph time of 2.35 seconds. This is a list of street legal production motorcycles ranked by acceleration from a standing start, limited to 0 to 60 mph times of under 3.5 seconds, and 1 ⁄ 4-mile times of under 12 seconds.
Two common definitions used today are the imperial horsepower as in "hp" or "bhp" which is about 745.7 watts, and the metric horsepower as in "cv" or "PS" which is approximately 735.5 watts. The electric horsepower "hpE" is exactly 746 watts, while the boiler horsepower is 9809.5 or 9811 watts, depending on the exact year.
cubic mile: cu mi ≡ 1 mi × 1 mi × 1 mi ≡ 4 168 181 825.440 579 584 m 3: cubic yard: yd 3: ≡ 27 cu ft ... ≡ 1 hp × 1 h = 2.684 519 537 696 172 792 ...
Rollout or rollout allowance is an adjustment in timed acceleration runs used by North-American drag racing and enthusiast magazines [citation needed] to create approximate parity over time between historic 0 to 60 mph and 1/4 mile acceleration times and those measured today using the Global Positioning System (GPS).
The two magazines reported top speeds of 158 and 161 mph (254 and 259 km/h) respectively, and 0 to 1 ⁄ 4 mile (0.00 to 0.40 km) times of 10.51 and 10.39 seconds at 134.32 and 134.09 mph (216.17 and 215.80 km/h).
This division has specific rules about engines, components, bodies, etc. Pro Modifieds can either be raced on 1/4 mile or 1/8 mile tracks. Usually, the NHRA races Pro Mod cars on the 1/4 mile, resulting in high 5 to low 6 second passes, while the PDRA races strictly on 1/8 mile track setups, allowing for high 3 second-to low 4 second passes.
Back half – the second half of a track, e.g. from the 1/8 mile to mark to the 1,000 foot or 1/4 mile mark for a standard track; Beam – electronic device (e.g. an optical beam) at the starting line to detect a car's staging position; Big tire – Car with a set of rear tires taller than 28.5 inches tall and or wider than 12.5 inches of tread.