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The legendary Subaru EJ boxer engine
The Subaru EJ engine is a series of four-stroke automotive engines manufactured by Subaru.The boxer engine name comes from the way the pistons move. In most cars, pistons move up and down. In the boxer engine, the pistons move horizontally, like a boxer punching. They were introduced in 1989, intended to succeed the previous Subaru EA engine. The EJ series is 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 double-overhead camshaft arrangements (SOHC or DOHC). Naturally aspirated and turbocharged versions are available, ranging from 96 to 320 horsepower. These engines are commonly used in light aircraft, kit cars and engine swaps. Primary engineering on the EJ series was done by Masayuki Kodama, Takemasa Yamada and Shuji Sawafuji of Fuji Heavy Industries, Subaru's parent company.
The intelligent engineering behind Subaru's Boxer engine provides the get-up and go you expect from a Subaru, and provides plenty of power for Subaru's symmetrical AWD system. The flat laying engine design provides the perfect combination of balance, power and efficiency. The Subaru Boxer engine delivers, even under the most adverse conditions and still maintains the highest fuel efficiency among dedicated AWD vehicles.
All Subaru EJ engines have a 1-3-2-4 firing order, which, given the longer exhaust runners on cylinders 2 and 4 causes the characteristic "subaru engine sound".
Subaru 2.5-liter Turbo Boxer engine won 'best engine' in the 2.0- to 2.5-litre category in both the 2006 and 2008 International Engine of the Year awards. It also won a place on the list of Ward's 10 Best Engines in 2004 and 2010.
The Subaru EJ engine is a series of four-stroke automotive engines manufactured by Subaru.The boxer engine name comes from the way the pistons move. In most cars, pistons move up and down. In the boxer engine, the pistons move horizontally, like a boxer punching. They were introduced in 1989, intended to succeed the previous Subaru EA engine. The EJ series is 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 double-overhead camshaft arrangements (SOHC or DOHC). Naturally aspirated and turbocharged versions are available, ranging from 96 to 320 horsepower. These engines are commonly used in light aircraft, kit cars and engine swaps. Primary engineering on the EJ series was done by Masayuki Kodama, Takemasa Yamada and Shuji Sawafuji of Fuji Heavy Industries, Subaru's parent company.
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