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Mitsubishi 4G93 specs: 1.8L (110 ci) 4-cylinder, 81 x 89 mm (3.1890 x 3.5039 in) bore and stroke, 9.5:1 compression. Rated 113 hp, 1993–2002.
The Mitsubishi 4G93 is undersquare — the 3.5039" stroke exceeds the 3.189" bore by 9.0% — a layout that trades peak RPM for leverage and torque low in the range. The 3.5039" stroke puts mean piston speed at 4,000 ft/min around 6,850 RPM, which is where a production bottom end is generally considered at its limit. Each of the 4 cylinders displaces 27.5 ci (451 cc).
9.5:1 is in the range that usually runs on pump premium.
10 factory variants share these dimensions, rated at 113 hp across 1993–2002.
| Displacement | 110 ci / 1.8 L |
|---|---|
| Bore | 3.189" |
| Stroke | 3.5039" |
| Cylinders | 4 |
| Configuration | I4 |
| Compression ratio | 9.5:1 * |
| Bore/stroke ratio | 0.91 |
* Compression ratio from a single source; not yet cross-verified.
| Fuel type | gas |
|---|---|
| Advertised HP | 113 hp |
| Years | 1993–2002 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 1993 | 4G93 net | 113 * | — | — |
Factory specification sheet. * Not yet cross-verified.
| Bore/stroke character | 0.910 — undersquare — stroke exceeds bore, which favours low-end torque |
|---|---|
| Mean piston speed at 6,000 RPM | 3,504 ft/min — in the range typical of performance street engines |
| Displacement per cylinder | 27.5 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 |
|---|---|---|
| 1993 | 113 hp | 4G93 |
| 1994 | 113 hp | 4G93 |
| 1995 | 113 hp | 4G93 |
| 1996 | 113 hp | 4G93 |
| 1997 | 113 hp | 4G93 |
| 1998 | 113 hp | 4G93 |
| 1999 | 113 hp | 4G93 |
| 2000 | 113 hp | 4G93 |
| 2001 | 113 hp | 4G93 |
| 2002 | 113 hp | 4G93 |
1 factory vehicle, 1993–2002. Each year opens that model's engine table.