Subaru EF engine

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EF12 MPFI engine in a 1993 Subaru Justy

The EF is an automotive engine made by Subaru, introduced in 1984 for the Subaru Justy. It is a water-cooled, straight-three engine, four-stroke engine with a belt-driven single overhead camshaft, and a chain-driven balance shaft. It has an alloy cylinder head and a closed deck iron engine block.

EF10[edit]

1.0-litre (997 cc) two valves per cylinder

Subaru EF-10 Engine

Bore x Stroke: 78 mm (3.1 in) x 69.6 mm (2.7 in)

Power:

  • 47 bhp (35 kW; 48 PS) @5000 rpm/59 lb·ft (80 N·m) @ 3200 rpm with single barrel Hitachi carburetor and 9.5:1 compression ratio
  • 54 bhp (40 kW; 55 PS) @6000 rpm/59 lb·ft (80 N·m) @ 3600 rpm with dual barrel Hitachi carburetor and 9.5:1 compression ratio

Usage:

EF12[edit]

1.2-litre (1189 cc) three valves per cylinder

Subaru EF-12 Engine

Bore x Stroke: 78 mm (3.1 in) x 83 mm (3.3 in)

Power:

  • 66 bhp (49 kW; 67 PS) @5200 rpm/70 lb·ft (95 N·m) @ 3600 rpm with two barrel Hitachi carburetor and 9:1 compression ratio
  • 73 bhp (54 kW; 74 PS) @5600 rpm/71 lb·ft (96 N·m) @ 3600 rpm with multi-port fuel injection and 9.1:1 compression ratio

Usage:

Power:

Usage:

  • Subaru Tutto (Taiwan)

Sources[edit]

This article incorporates information from the equivalent article on the Japanese Wikipedia.

External links[edit]