Audi EA835 specs: 81 x 90 mm (3.1890 x 3.5433 in) bore and stroke. Displacement, compression and factory ratings for each, plus rod ratio and piston speed.
| Displacement | 170.9 ci |
|---|---|
| Cylinders | 6 |
| Bore | 3.189" |
| Stroke | 3.543" |
| Compression | 10.3:1 |
| Advertised power | 193 hp |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| ACK, ALG, APR, AQD, ATX | 170.9 ci | 3.189" × 3.5433" | 10.3:1 | 193 |
This family is represented by a single engine in the database: 170.9 ci, 6 cylinders, a 3.189" × 3.5433" bore and stroke.
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.