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...displacement]]''' is an [[automobile]] engine technology that allows the [[engine displacement]] to change for improved fuel economy. Many automobile manufa ...i-displacement system turned off opposite pairs of cylinders, allowing the engine to have three different configurations and displacements. But the system w

[[Image:SOHC Hemi Chamber.jpg|thumb|250px|Hemispherical Combustion Chamber]] ...ey were neither the hemi engine's inventors nor the first to commercialize hemi engines.

[[Image:pushrod engine.jpg|thumb|Picture of a [[V8]] [[engine block]] (with [[intake manifold]] removed), showing the camshaft, pushrods, ...uate the [[poppet valve|valves]]. Lifters or ''[[tappet]]s'' reside in the engine block between the camshaft and pushrods. The later [[overhead cam|overhead

[[Image:Aero4G11.jpg|thumb|250px|The Liberty V8 aircraft engine clearly shows the configuration]] A '''V8''' engine is a [[V engine]] with eight [[cylinder]]s.

...350px|[[Displacement]], One complete cycle of a four cylinder, four stroke engine. The volume displaced is marked in red.]] ...ed in [[cubic centimetre]]s, [[litre]]s or [[cubic inch]]es. In a [[piston engine]], this is the volume that is ''swept'' as the [[piston]]s are moved from '

...ngine#Single|single cylinder]] [[Four Stroke Engine|4-stroke]], 124.4 cc [[Engine displacement|displacement]], 6.8:1 [[Compression ratio|compression]], 25° ...125 Cadet/4. Specification included 121.340cc (53x55mm) unit-construction engine, four speeds, 18 in wheels, and a top sped of 61mph. It was built in 1967

...s]]), lowering it, modifying, [[Engine tuning|tuning]], or replacing the [[engine]] to give more power, and changing the [[wheel]]s and [[tire]]s to improve ...ir compact size, availability, and power. The early [[Chrysler Hemi engine|Hemi]] was popular in applications that required more power, such as [[drag raci

...h a drivetrain that allows all four [[wheel]]s to receive power from the [[engine]] simultaneously. While many people associate the term with [[off-road vehi .... It was relatively unchanged during its production, even after [[Chrysler|Chrysler's]] buyout of AMC, all the way through 1991.

...e applications, fuel metering is one of several functions performed by an "engine management system". ...n systems have existed since the earliest usage of the internal combustion engine.

...tomotive]] industry for listing the maximum power of [[internal-combustion engine]]s. ...s first used by [[James Watt]] during a business venture where his [[steam engine]]s replaced [[horse]]s. It was defined that a horse can lift 33,000 [[poun

...n|drivetrain]] that allows all four [[wheel]]s to receive power from the [[engine]] simultaneously. In the [[United States]], these cars are included in the ...sports car, which was also the first ever car equipped with a six-cylinder engine and featured, as another novelty, brakes for all four wheels, is nowadays e

...the classic architecture of Alfa engines, with light alloy construction, [[hemi|hemispherical combustion chambers]], centrally-located plugs, two rows of o ...e classic [[Alfa Romeo Twin Cam]] engine, initially in 1300 cc form. This engine would eventually be enlarged to just under 2 liters (1962 cc) and would rem