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Porsche T-Hybrid specs: 3.6L (219.1 ci) 6-cylinder, 97 x 81 mm (3.8189 x 3.1890 in) bore and stroke, 10.5:1 compression. Rated 532 hp, 2025–2026.
The Porsche T-Hybrid is oversquare — the 3.8189" bore exceeds the 3.189" stroke by 19.8% — a layout that favors airflow and RPM over leverage at the crank. The 3.189" stroke does not reach 4,000 ft/min of mean piston speed until about 7,550 RPM, so piston speed is not what limits this engine's revs — valvetrain and breathing are. Each of the 6 cylinders displaces 36.5 ci (598 cc).
10.5:1 is in the range that usually runs on pump premium.
It is one of 9 engines in the 9A2 Evo family, sitting between the 121.3 ci and 243.9 ci members. 2 factory variants share these dimensions, rated at 532 hp across 2025–2026.
| Displacement | 219.1 ci / 3.6 L |
|---|---|
| Bore | 3.8189" |
| Stroke | 3.189" |
| Cylinders | 6 |
| Compression ratio | 10.5:1 |
| Bore/stroke ratio | 1.198 |
| Fuel type | gas |
|---|---|
| Redline | 7,500 rpm (factory limit) |
| Advertised HP | 532 hp |
| Years | 2025–2026 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 2025 | T-Hybrid net | 532 | 449 lb-ft | 10.5:1 |
| 2026 | T-Hybrid net | 532 | 449 lb-ft | 10.5:1 |
Factory specification sheet.
| Bore/stroke character | 1.198 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|---|
| Mean piston speed at 6,000 RPM | 3,189 ft/min — conservative for a street engine |
| Displacement per cylinder | 36.5 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 |
|---|---|---|
| 2025 | 532 hp | T-Hybrid |
| 2026 | 532 hp | T-Hybrid |
1 factory vehicle, 2025–2026. Each year opens that model's engine table.