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Subaru’s 2.5-litre turbocharged horizontally opposed boxer engine has won the
2.0 to 2.5-litre class of the International Engine of the Year Awards.
In Australia, the engine is used in the Impreza WRX and Forester XT.
It is the first time a horizontally opposed engine has been chosen in the
prestigious annual awards, which were presented at the Engine Expo in Stuttgart,
Germany.
The version of the engine used in Australia produces 169 kW of power at 5600
rpm and 320 Nm of torque at 3600 rpm.
Fuji Heavy Industries, the maker of Subaru vehicles, has made significant
improvements in lowering vehicle emission levels by employing a secondary air
injection system, improving the engine control system and modifying combustion
chamber design.
The engine achieves optimal balance between nimble response at low-speed
driving and enhanced power output, thanks to design changes in the cylinder head
water jacket and layout of the exhaust manifolds, minimizing pump loss and
ensuring smooth gas flow.
A panel of 61 renowned journalists from 29 countries served as judges in the
awards.
The judges applied their technical knowledge and impressions, scoring the
vehicles performance, drivability, ease of handling, fuel economy, and
refinement.
The awards are organized by UKIP Media & Events - Automotive Magazines’
Division, Britain’s largest group of auto-technology magazines, which includes
Engine Technology International and Automotive Testing Technology International.
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