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Nissan GA16DE specs: 1.6L (97 ci) 4-cylinder, 76 x 88 mm (2.9921 x 3.4646 in) bore and stroke. Rated 115 hp, 1991–1999. Used in the Nissan Sentra.
The Nissan GA16DE is undersquare — the 3.4646" stroke exceeds the 2.9921" bore by 13.6% — a layout that trades peak RPM for leverage and torque low in the range. The 3.4646" stroke puts mean piston speed at 4,000 ft/min around 6,950 RPM, which is where a production bottom end is generally considered at its limit. Each of the 4 cylinders displaces 24.3 ci (397 cc).
It is one of 4 engines in the Nissan 97ci family, all of them 97 ci — the differences between them are in compression, heads and rating, not displacement. 9 factory variants share these dimensions, rated at 115 hp across 1991–1999.
| Displacement | 97 ci / 1.6 L |
|---|---|
| Bore | 2.9921" |
| Stroke | 3.4646" |
| Cylinders | 4 |
| Configuration | I4 |
| Bore/stroke ratio | 0.864 |
| Fuel type | gas |
|---|---|
| Advertised HP | 115 hp |
| Years | 1991–1999 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 1997 | GA16DE net | 115 @ 6000 | 108 lb-ft @ 4000 | — |
| 1998 | GA16DE net | 115 @ 6000 | 108 lb-ft @ 4000 | — |
| 1999 | GA16DE net | 115 @ 6000 | 108 lb-ft @ 4000 | — |
Factory specification sheet.
| Bore/stroke character | 0.864 — undersquare — stroke exceeds bore, which favours low-end torque |
|---|---|
| Mean piston speed at 6,000 RPM | 3,465 ft/min — conservative for a street engine |
| Displacement per cylinder | 24.3 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 |
|---|---|---|
| 1991 | — | GA16DE |
| 1992 | — | GA16DE |
| 1993 | — | GA16DE |
| 1994 | — | GA16DE |
| 1995 | 115 hp | GA16DE |
| 1996 | 115 hp | GA16DE |
| 1997 | 115 hp | GA16DE |
| 1998 | 115 hp | GA16DE |
| 1999 | 115 hp | GA16DE |
3 factory vehicles, 1991–1999. Each year opens that model's engine table.