See other engines in this family
Subaru EJ22E specs: 2.2L (135 ci) 4-cylinder, 96.9 x 75 mm (3.8150 x 2.9528 in) bore and stroke. Rated 130-142 hp, 1990–2001. Used in the Subaru Legacy. SOHC.
The Subaru EJ22E is oversquare — the 3.815" bore exceeds the 2.9528" stroke by 29.2% — a layout that favors airflow and RPM over leverage at the crank. The 2.9528" stroke does not reach 4,000 ft/min of mean piston speed until about 8,150 RPM, so piston speed is not what limits this engine's revs — valvetrain and breathing are. Each of the 4 cylinders displaces 33.8 ci (553 cc).
It is one of 43 engines in the EJ family, sitting between the 91.1 ci and 152 ci members. 12 factory variants share these dimensions, rated from 130 to 142 hp across 1990–2001.
| Displacement | 135 ci / 2.2 L |
|---|---|
| Bore | 3.815" |
| Stroke | 2.9528" |
| Cylinders | 4 |
| Compression ratio | 9.5–9.7:1 (published figures vary) |
| Bore/stroke ratio | 1.292 |
| Block material | aluminum |
|---|---|
| Head material | aluminum |
| Valvetrain | SOHC |
| Fuel type | gas |
| Firing order | 1-3-2-4 |
| Advertised HP | 130–142 hp |
| Years | 1990–2001 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 1998 | EJ22E net | 137 * | — | — |
Factory specification sheet. * Not yet cross-verified.
| Bore/stroke character | 1.292 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|---|
| Mean piston speed at 6,000 RPM | 2,953 ft/min — conservative for a street engine |
| Displacement per cylinder | 33.8 ci |
Each link opens the calculator with this engine's specs already filled in.
These records share identical bore, stroke, displacement and compression. They differ by model year and factory power rating.
| Year | Advertised HP | Code |
|---|---|---|
| 1990 | 130 hp | EJ22E |
| 1991 | 130 hp | EJ22E |
| 1992 | 130 hp | EJ22E |
| 1993 | 130 hp | EJ22E |
| 1994 | 130 hp | EJ22E |
| 1995 | 135 hp | EJ22E |
| 1996 | 135 hp | EJ22E |
| 1997 | 137 hp | EJ22E |
| 1998 | 137 hp | EJ22E |
| 1999 | 142 hp | EJ22E |
| 2000 | 142 hp | EJ22E |
| 2001 | 142 hp | EJ22E |
3 factory vehicles, 1990–2001. Each year opens that model's engine table.