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Porsche MDB.CB specs: 3.7L (229 ci) 6-cylinder. Rated 543-640 hp, 2021–2025. Used in the Porsche 911. Rod ratio and piston speed worked out.
Each of the 6 cylinders displaces 38.2 ci (625 cc).
11 factory variants share these dimensions, rated from 543 to 640 hp across 2021–2025.
| Displacement | 229 ci / 3.7 L |
|---|---|
| Cylinders | 6 |
| Fuel type | gas |
|---|---|
| Advertised HP | 543–640 hp |
| Years | 2021–2025 |
| Displacement per cylinder | 38.2 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 |
|---|---|---|
| 2021 | 572 hp | MDB.CB |
| 2021 | 640 hp | MDB.CB |
| 2022 | 572 hp | MDB.CB |
| 2022 | 640 hp | MDB.CB |
| 2023 | 543 hp | MDB.CB |
| 2023 | 572 hp | MDB.CB |
| 2023 | 640 hp | MDB.CB |
| 2024 | 572 hp | MDB.CB |
| 2024 | 640 hp | MDB.CB |
| 2025 | 572 hp | MDB.CB |
| 2025 | 640 hp | MDB.CB |