Audi EA855 evo specs: 82.5 x 92.8 mm (3.2480 x 3.6535 in) bore and stroke, shared by all 3 versions. Displacement, compression and factory ratings.
| Displacement | 151–152.6 ci |
|---|---|
| Cylinders | 5 |
| Bore | 3.248" |
| Stroke | 3.654" |
| Compression | 10.0:1 |
| Advertised power | 400 hp |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| 25 I5 Tfsi Ea855evo | 152.6 ci | 3.248" × 3.6535" | 10:1 | 400 |
| DAZA, DNWA | 152.4 ci | 3.248" × 3.6535" | 10:1 | 400 |
| DAZA | 151 ci | 3.248" × 3.6535" | 10:1 | 400 |
All are undersquare — stroke larger than bore, favouring torque low in the range.
Each engine page carries rod ratio, mean piston speed, bore/stroke character and cylinder head specs where published, and links into the calculators with its dimensions already filled in.