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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.
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 ...
Engine displacement is the measure of the cylinder volume swept by all of the pistons of a piston engine, excluding the combustion chambers. [1] It is commonly used as an expression of an engine's size, and by extension as an indicator of the power (through mean effective pressure and rotational speed ) an engine might be capable of producing ...
Engines with overhead camshafts were installed with two timing belts, whereas vehicles with overhead valves used timing gears exclusively. Subaru EA82 Engine. EA52: 977 cc OHV, 55 hp at 6,000 rpm used in the 1966–1971 Subaru 1000; EA61: 1088.8 cc OHV, 62 hp at 6,400 rpm used in the 1970–1972 Subaru FF-1 Star and Subaru G
At first the RAC rating was usually representative of the car's actual (brake) horsepower, but as engine design and technology progressed in the 1920s and 1930s these two figures began to diverge, with engines making much more power than their RAC ratings suggested: by 1924 the 747 cc (45.6 cu in) engine of the Austin Seven (named for its 7 hp ...
By 1957 the engine had grown to 283 cu in (4.6 L). Fitted with the optional Rochester mechanical fuel injection (FI) and a Duntov high-lift camshaft, it was one of the first production engines to produce 1 hp (0.7 kW) per 1 cu in (16.4 cc). The 283 was adopted by other Chevrolet models, replacing the 265 V8s.
The Revolution engine is a liquid-cooled, double overhead camshaft, four valve per cylinder, electronic fuel injected, internally counterbalanced 60 degree V-twin engine with a displacement of 1,131 cc (69.0 cu in), producing a claimed 115 horsepower (86 kW) at 8,250 rpm at the crankshaft, with a redline of 9,000 rpm.
Between 1995 and 2000, cars using this 3.0 L engine formula, imposed by the FIA, produced a constant power range (depending on engine type and tuning), varying between 600 hp and 815 hp. Most Formula One cars during the 1997 season comfortably produced a consistent power output of between 665–760 hp (495.9–566.7 kW), depending on whether a ...