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The Subaru EJ engine is a series of four-stroke automotive engines manufactured by Subaru. They were introduced in 1989, intended to succeed the previous Subaru EA engine . The EJ series was the mainstay of Subaru's engine line, with all engines of this series being 16-valve horizontal flat-fours , with configurations available for single, or ...
The active valve control system (AVCS) is an automobile variable valve timing technology used by Subaru. It varies the timing of the valves by using hydraulic oil pressure to rotate the camshaft, known as "phasing", [1] in order to provide optimal valve timing for engine load conditions. The system is closed loop using the camshaft sensors ...
For the first time in a Subaru engine, the centerlines of the cylinder bores do not intersect with the crankshaft axis to reduce friction during the piston downstroke; instead, there is a crank offset of 8 mm (0.31 in). Overall thermal efficiency is 40% due to the adoption of lean-burn combustion with an excess air ratio (λ) of 2. [32]
Subaru Alcyone VX. Created as a refined luxury engine with improved power over the EA82T, Subaru introduced the ER27 engine in November 1985 for the Subaru ACX-II concept car, shown at the Tokyo Motor Show and billed as the 'concept car of the near future.' [2] The concept went into production as the Subaru Alcyone VX (Subaru XT6 in North America) in August 1987, [3] the exclusive application ...
The new engine, known as the EJ20H, operated with one small turbocharger at low engine speeds to give good throttle response, supplemented by a second turbocharger at high engine speeds for additional power. Maximum power output was 250 ps (246.6 bhp) at 6,500 rpm and maximum torque was 308.9 Nm (227.8 lbf·ft) at 5,000 rpm.
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Before electronic crank sensors were available, the distributor would have to be manually adjusted to a timing mark on petrol engines. The crank sensor can be used in combination with a similar camshaft position sensor (CMP) [4] [5] [3] to monitor the relationship between the pistons and valves in the engine, which is particularly important in ...
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