Audi 136ci specs: 81 x 86.4 mm (3.1890 x 3.4016 in) bore and stroke, shared by all 2 versions. Displacement, compression and factory ratings, plus rod ratio.
| Displacement | 136 ci |
|---|---|
| Cylinders | 5 |
| Bore | 3.189" |
| Stroke | 3.402" |
| Compression | 7.8–8.5:1 |
| Years | 1985–1988 |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| KX / JT | 136 ci | 3.189" × 3.4016" | 8.5:1 | — |
| MC | 136 ci | 3.189" × 3.4016" | 7.8:1 | — |
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.