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A typical turbocharged V8 diesel engine might have an engine power of 250 kW (340 hp) and a mass of 380 kg (840 lb), [1] giving it a power-to-weight ratio of 0.65 kW/kg (0.40 hp/lb). Examples of high power-to-weight ratios can often be found in turbines. This is because of their ability to operate at very high speeds.
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.
High-Performance Cars tested a production line stock, but well tuned, example and recorded a 13.1 second/110 mph (180 km/h) 1 ⁄ 4 mile (402 m), which correlates quite well with the previously referenced 376 hp (280 kW) SAE Net figure.
In September 1971 the H2 was a direct result of the success of the 500 cc Kawasaki H1 Mach III introduced in 1969. The H2 engine was a 3-cylinder two-stroke with an engine displacement of 748 cc (45.6 cubic inches) which produced 74 horsepower (55 kW) at 6,800 rpm, a power-to-weight ratio of 1 hp (0.75 kW) to every 5.7 lb (2.6 kg) of weight.
A vehicle goes 150 mph (240 km/h) or faster in the quarter-mile and does not have a parachute, required for cars that speed or faster. A driver goes faster than the legal limit of his competition licence. Examples include: A driver's competition licence only is for cars 7.50 to 8.99 seconds, and his car goes faster than 7.49 seconds.
Fastest road car over the 1/4 mile: 9.9 seconds @ 143 mph (230 km/h) Due to its kerb weight of 980 kg (2,161 lb), [ 7 ] the power-to-weight ratio for the GTR720 is 745 bhp (755 PS; 556 kW) per tonne, which is a better ratio than the Bugatti Veyron , Enzo Ferrari , Ascari A10 , Koenigsegg CCX or CCGT , but less than the Koenigsegg CCXR or the ...
1500 units per year planned for BEV and EREV (600 kW (805 hp; 816 PS)) versions combined. [34] [35] Aston Martin Valhalla: 2021 793 kW (1,064 hp; 1,079 PS)
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.