Subaru ER six-cylinder engine (H6)

Subaru introduced its first six-cylinder petrol engine in its sports car the Alcyone VX  and as the Subaru XT in the US, it was at the time a world first,the only water-cooled flat-6 car engine available.

This SOHC multi-point electronic fuel injection engine was based on the EA82 first-generation flat-4, with the same bolt patterns and design to the EA82 but  with two cylinders added to the rear and 2-valve cylinder heads,with unique oil and water pumps.The valve timing system has two individual timing belts ,one is spring tensioner whilst the other uses a hydraulic version.

Technical

ER27  :model: Subaru XT ,Subaru Alcyone VX (1987 to 1991)

• 2672 cm  SOHC , (2.7L)
• Power 145 hp at 5200 RPM (US)
• Power 150 hp at 5200 RPM (JDM)
• Torque output 211 N⋅m (156 lb⋅ft) at 4000 RPM
• Cylinder bore 92 mm
• Piston stroke 67 mm
• Compression ratio 9.5:1
• Block material aluminium
• Head material aluminium
• Fuel type Petrol (gasoline)