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Subaru was the first to offer chain-driven overhead cam (OHC) technology in the small, air-cooled engine market with its Subaru Industrial EX engine series. [5] A standard for high-performance automotive engines, chain-driven OHC technology allows the intake and exhaust valves to be positioned for optimum engine performance.
The technology allows the intake and exhaust valves being positioned for optimum engine performance, which offers lower resistance for the air/fuel mixture flow. Overhead Cam engines also have fewer moving parts and produce less mechanical noise than competitive technologies. They also offer better cooling performance to combat overheating. [2]
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]
The V-Twin engine series from Subaru Industrial Power Products includes six models, with power ranges from 18 to 28 horsepower. These internal combustion engines feature a dual-cylinder design that resembles a “V”, a common and identifying feature of most V-twin engines .
1971 Fuji Heavy Industries, owner of Subaru, appointed Teledyne Wisconsin Motor US agents for their Robin engines; 1992 Teledyne Total Power sold out to Nesco Incorporated [3] 2010 Hydrogen Engine Center, Inc. and Wisconsin Motors Sign a Joint Venture [4] September 30, 2017 Subaru Corporation ended production of small engines. [5]
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The Subaru EA-71 engine was produced in two different designs; from 1976 to 1994, originally the first design was a redesign of the EA-63 block, known as the "Narrow Case EA71" then Subaru completely redesigned it to make the newer version known as "Fat Case EA71" which also led to a stroked version known as the EA81. The availability in USA ...
Boxer-four engine: 2.0L FA20F B4-T GDI: Subaru WRX: Volkswagen: 1.8 L: Inline-four engine: EA888 DOHC I4-T GDI VVL: Volkswagen Golf: Volvo: 2.0 L: Inline-four engine: 2.0L Drive-E B4204T7 VEP4 I4-T GDI: Volvo S60 T5 FWD Drive-E: 2014 [11] Audi (Volkswagen Group) 3.0 L: V6 engine: V6 DOHC Supercharged Fuel Stratified Injection: Audi S5: BMW: 3.0 ...