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Volkswagen EA888 (1985–1993) specs: 1.8L (109.8 ci) 4-cylinder, 82.5 x 84.2 mm (3.2480 x 3.3150 in) bore and stroke. Rated 90-105 hp, 1985–1993.
The Volkswagen EA888 (1985–1993) is close to square: 3.248" bore against 3.315" stroke, within 2.0%, which splits the difference between a high-revving layout and a torque layout. The 3.315" stroke does not reach 4,000 ft/min of mean piston speed until about 7,250 RPM, so piston speed is not what limits this engine's revs — valvetrain and breathing are. Each of the 4 cylinders displaces 27.5 ci (450 cc).
It is one of 31 engines in the EA888 family, the smallest at 109.8 ci. 19 factory variants share these dimensions, rated from 90 to 105 hp across 1985–1993.
| Displacement | 109.8 ci / 1.8 L |
|---|---|
| Bore | 3.248" |
| Stroke | 3.315" |
| Cylinders | 4 |
| Configuration | I4 |
| Bore/stroke ratio | 0.98 |
| Block material | cast iron |
|---|---|
| Head material | aluminum |
| Valvetrain | DOHC |
| Fuel type | gas |
| Advertised HP | 90–105 hp |
| Years | 1985–1993 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 1991 | 110ci net | 94 @ 5400 * | 100 lb-ft @ 3000 * | — |
| 1991 | 110ci net | 105 @ 5400 * | — | — |
Factory specification sheet. * Not yet cross-verified.
| Bore/stroke character | 0.980 — square — bore and stroke are within 5%, a balanced compromise |
|---|---|
| Mean piston speed at 6,000 RPM | 3,315 ft/min — conservative for a street engine |
| Displacement per cylinder | 27.4 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 |
|---|---|---|
| 1985 | 90 hp | — |
| 1986 | 90 hp | — |
| 1986 | 100 hp | — |
| 1987 | 90 hp | — |
| 1987 | 105 hp | — |
| 1988 | — | — |
| 1988 | 90 hp | — |
| 1989 | — | — |
| 1989 | 90 hp | — |
| 1990 | — | — |
| 1990 | 94 hp | — |
| 1990 | 105 hp | — |
| 1991 | — | — |
| 1991 | 94 hp | — |
| 1991 | 105 hp | — |
| 1992 | — | — |
| 1992 | 94 hp | — |
| 1992 | 105 hp | — |
| 1993 | 94 hp | — |
2 factory vehicles, 1985–1993. Each year opens that model's engine table.