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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.
Engine power is the power that an engine can put out. It can be expressed in power units, most commonly kilowatt, pferdestärke (metric horsepower), or horsepower.In terms of internal combustion engines, the engine power usually describes the rated power, which is a power output that the engine can maintain over a long period of time according to a certain testing method, for example ISO 1585.
1 PSh = 0.73549875 kW⋅h = 2647.7955 kJ (exactly by definition) The horsepower-hour is still used in the railroad industry when sharing motive power (locomotives). For example, if Railroad A borrows a 2,500 horsepower locomotive from Railroad B and operates it for twelve hours, Railroad A owes a debt of (2,500 hp × 12 h) = 30,000 hp⋅h.
10,433 horsepower (7,780 kW) 1-hour rating; 9,977 horsepower (7,440 kW) continuous rating One of the most powerful electric locomotives ever built, it also is the most powerful (short term) single-frame locomotive ever built (currently [ when? ] its maximum short term power is limited to 12,000 horsepower (8,948 kW )); It has immense short term ...
Super Comp (or Quick Rod) is the fastest of the heads-up Super classes (8.90 index). Super Comp is composed primarily of dragsters. Engine, chassis and body modifications are virtually unlimited, though all entries must adhere to NHRA or IHRA safety standards. Four and six-cylinder-powered entries may have a minimum weight of 1,000 pounds; all ...
Taxable horsepower does not reflect developed horsepower; rather, it is a calculated figure based on the engine's bore size, number of cylinders, and a (now archaic) presumption of engine efficiency. As new engines were designed with ever-increasing efficiency, it was no longer a useful measure, but was kept in use by UK regulations, which used ...
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All variations of 4B1 engine share the same engine block with a 96 mm bore pitch. The difference in displacement is achieved by variance in bore and stroke. [4] The 4B1 engine family is the first to have the continuously variable valve timing MIVEC system applied not only to its intake valves but also to its exhaust valves. The intake and ...