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The Subaru FB engine is the third generation of gasoline boxer-4 engine used in Subaru automobiles, and was announced on 23 September 2010. [1] It follows the previous generation EJ-series engine which was introduced in 1989 and the first generation EA-series which was introduced in 1966.
Subaru unveiled the world's first boxer diesel engine to be fitted in a passenger car at the Geneva Auto Show in 2007. [3] This 2.0L DOHC engine, designated the EE20, [4] has an output of 110 kW (150 PS; 150 hp) at 3600 rpm and develops 350 N⋅m (36 kg⋅m; 260 lb⋅ft) of torque at 1800 rpm, [5] [6] with a redline of 4750 rpm. [7]
DOHC 4 valves x cyl. with AVCS: Compression ratio: 10.6:1, 12.5:1: RPM range; ... The Subaru FA engine is a gasoline boxer-4 engine used in Subaru and Toyota automobiles.
It is the fourth-generation boxer engine family from Subaru. [4] Compared to the preceding FB series, the CB is shorter; the bore pitch (centerline to centerline spacing between adjacent cylinders) has decreased from 113.0 to 98.6 mm (4.45 to 3.88 in) and the overall crank length has decreased from 350.5 to 315.9 mm (13.80 to 12.44 in). [5]
A flat-four engine, also known as a horizontally opposed-four engine or boxer engine, [1] is a four-cylinder piston engine with two banks of cylinders lying on opposite sides of a common crankshaft. The most common type of flat-four engine is the boxer-four engine , each pair of opposed pistons moves inwards and outwards at the same time.
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 boxer rumble". Some of the 2005 and later Subaru vehicle Engines (especially the turbo charged engines) are using CAN bus as their sole Vehicle/Vessel speed input channel.
In North America, the model is only available with one engine type: Subaru's new FB25 DI. The engine is a naturally aspirated, direct injection flat (boxer) 4 cylinder producing 182 hp (136 kW; 185 PS) at 5800 rpm and 176 lb⋅ft (239 N⋅m; 24 kg⋅m) at 4400 rpm, [57] with the Lineartronic CVT as the sole transmission option. [58]
The EZ series, consisting of the EZ30 and EZ36 models, was designed to be almost as compact as the EJ25 flat-4. The EZ30/36 were the first Subaru six-cylinder engines available outside the sport coupes, used as the uplevel option for Subaru Legacy (2002–19) and Outback/Lancaster (2001–19) as well as the sole option in the Subaru Tribeca ...