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Suzuki 97ci (1999–2001) specs: 1.6L (97 ci) 4-cylinder, 75 x 90 mm (2.9528 x 3.5433 in) bore and stroke, 9.5:1 compression. Rated 97 hp, 1999–2001.
The Suzuki 97ci (1999–2001) is undersquare — the 3.5433" stroke exceeds the 2.9528" bore by 16.7% — a layout that trades peak RPM for leverage and torque low in the range. The 3.5433" stroke puts mean piston speed at 4,000 ft/min around 6,750 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).
9.5:1 is in the range that usually runs on pump premium.
It is one of 3 engines in the Suzuki 97ci family, all of them 97 ci — the differences between them are in compression, heads and rating, not displacement. 3 factory variants share these dimensions, rated at 97 hp across 1999–2001.
| Displacement | 97 ci / 1.6 L |
|---|---|
| Bore | 2.9528" |
| Stroke | 3.5433" |
| Cylinders | 4 |
| Configuration | I4 |
| Compression ratio | 9.5:1 * |
| Bore/stroke ratio | 0.833 |
* Compression ratio from a single source; not yet cross-verified.
| Fuel type | gas |
|---|---|
| Advertised HP | 97 hp |
| Years | 1999–2001 |
| Bore/stroke character | 0.833 — undersquare — stroke exceeds bore, which favours low-end torque |
|---|---|
| Mean piston speed at 6,000 RPM | 3,543 ft/min — in the range typical of performance street engines |
| Displacement per cylinder | 24.3 ci |
| Static compression | 9.5:1 — in the range that usually runs on pump premium |
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 |
|---|---|---|
| 1999 | 97 hp | — |
| 2000 | 97 hp | — |
| 2001 | 97 hp | — |
1 factory vehicle, 1999–2001. Each year opens that model's engine table.