See other engines in this family
Nissan CA18ET specs: 1.8L (110 ci) 4-cylinder, 83 x 83.6 mm (3.2677 x 3.2913 in) bore and stroke. Rated 120 hp, 1984–1986. Used in the Nissan 200SX.
The Nissan CA18ET is close to square: 3.2677" bore against 3.2913" stroke, within 0.7%, which splits the difference between a high-revving layout and a torque layout. The 3.2913" stroke does not reach 4,000 ft/min of mean piston speed until about 7,300 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 (451 cc).
It is one of 2 engines in the Nissan 110ci family, all of them 110 ci — the differences between them are in compression, heads and rating, not displacement. 3 factory variants share these dimensions, rated at 120 hp across 1984–1986.
| Displacement | 110 ci / 1.8 L |
|---|---|
| Bore | 3.2677" |
| Stroke | 3.2913" |
| Cylinders | 4 |
| Configuration | I4 |
| Bore/stroke ratio | 0.993 |
| Fuel type | gas |
|---|---|
| Advertised HP | 120 hp |
| Years | 1984–1986 |
| Bore/stroke character | 0.993 — square — bore and stroke are within 5%, a balanced compromise |
|---|---|
| Mean piston speed at 6,000 RPM | 3,291 ft/min — conservative for a street engine |
| Displacement per cylinder | 27.5 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 |
|---|---|---|
| 1984 | 120 hp | CA18ET |
| 1985 | 120 hp | CA18ET |
| 1986 | 120 hp | CA18ET |
1 factory vehicle, 1984–1986. Each year opens that model's engine table.