Nissan 91ci specs: 76 x 82 mm (2.9921 x 3.2283 in) bore and stroke. Displacement, compression and factory ratings for each, plus rod ratio and piston speed.
| Displacement | 91 ci |
|---|---|
| Cylinders | 4 |
| Bore | 2.992" |
| Stroke | 3.228" |
| Advertised power | 67 hp |
| Years | 1982 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| E15 | 91 ci | 2.9921" × 3.2283" | — | 67 |
This family is represented by a single engine in the database: 91 ci, 4 cylinders, a 2.9921" × 3.2283" bore and stroke.
All are undersquare — stroke larger than bore, favouring torque low in the range.
Each engine page carries rod ratio, mean piston speed, bore/stroke character and cylinder head specs where published, and links into the calculators with its dimensions already filled in.