Audi EA824 · 3.327" × 3.654" · 12.5:1 engine specs: 317.3 ci (5.2L), 10-cylinder, 3.3268" bore x 3.6535" stroke, 12.5:1 compression.
| Displacement | 317.3 ci / 5.2 L |
|---|---|
| Bore | 3.3268" |
| Stroke | 3.6535" |
| Cylinders | 10 |
| Compression ratio | 12.5:1 |
| Bore/stroke ratio | 0.911 |
| Block material | aluminum |
|---|---|
| Head material | aluminum |
| Valvetrain | DOHC |
| Fuel type | gas |
| Advertised HP | 525–550 hp |
| Bore/stroke character | 0.911 — undersquare — stroke exceeds bore, which favours low-end torque |
|---|---|
| Mean piston speed at 6,000 RPM | 3,654 ft/min — in the range typical of performance street engines |
| Displacement per cylinder | 31.7 ci |
| Static compression | 12.5:1 — high enough that pump premium or better is normally required |
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 |
|---|---|---|
| — | 525 hp | BUJ, CSPA, CTPA, CTPB, CTYA, CTYB, BUJ, CSPA, CNDA, CTPA, CTNA |
| — | 525 hp | BUJ, CNDA, CSPA |
| — | 525 hp | BUJ, CSPA, CTPB, CTPC, BUJ, CSPA, CNDA, BUJ, CNDA, CSPA, CTPA, CTNA, CTYA, BUJ, CNDA, CSPA, BUJ, CSPA, CTPB, BUJ, CSPA, CNDA, CTPA, CTNA, BUJ, CSPA, CSLB, BUJ, CSPA, CNDA, CTPA, BUJ, CNDA, BUJ, CSPA, CTPB, CTPA, BUJ, CSPA, CTPB, CTPA, DLGA, BUJ, CSPA, CTPB, CTYA, BUJ, CSPA, CTPB, CTYA, CUDN, CWBA, BXA, BXA, CSPA |
| — | 550 hp | CTPA, CSPA |
| — | 550 hp | CTPA, CTPB, CTPA, CTYA |