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Toyota G16E-GTS specs: 1.6L (98.7 ci) 3-cylinder, 87.5 x 89.7 mm (3.4449 x 3.5315 in) bore and stroke, 10.5:1 compression. Rated 300 hp, 2023–2026.
The Toyota G16E-GTS is close to square: 3.4449" bore against 3.5315" stroke, within 2.5%, which splits the difference between a high-revving layout and a torque layout. The 3.5315" stroke puts mean piston speed at 4,000 ft/min around 6,800 RPM, which is where a production bottom end is generally considered at its limit. Each of the 3 cylinders displaces 32.9 ci (539 cc).
10.5:1 on aluminum heads is in the range that usually runs on pump premium; aluminum sheds heat faster than iron, which makes the same number a little more forgiving.
4 factory variants share these dimensions, rated at 300 hp across 2023–2026.
| Displacement | 98.7 ci / 1.6 L |
|---|---|
| Bore | 3.4449" |
| Stroke | 3.5315" |
| Cylinders | 3 |
| Configuration | I3 |
| Compression ratio | 10.5:1 |
| Bore/stroke ratio | 0.975 |
| Block material | aluminum |
|---|---|
| Head material | aluminum |
| Valvetrain | DOHC |
| Fuel type | gas |
| Redline | 7,200 rpm (factory limit) |
| Advertised HP | 300 hp |
| Years | 2023–2026 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 2023 | G16E-GTS net | 300 @ 6500 | 273 lb-ft @ 3000 | 10.5:1 |
Factory specification sheet.
| Bore/stroke character | 0.975 — square — bore and stroke are within 5%, a balanced compromise |
|---|---|
| Mean piston speed at 6,000 RPM | 3,532 ft/min — in the range typical of performance street engines |
| Displacement per cylinder | 32.9 ci |
| Static compression | 10.5:1 — 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 |
|---|---|---|
| 2023 | 300 hp | G16E-GTS |
| 2024 | 300 hp | G16E-GTS |
| 2025 | 300 hp | G16E-GTS |
| 2026 | 300 hp | G16E-GTS |
1 factory vehicle, 2023–2026. Each year opens that model's engine table.