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Volkswagen CJXA specs: 2.0L (121 ci) 4-cylinder, 82.5 x 92.8 mm (3.2480 x 3.6535 in) bore and stroke, 9.6:1 compression. Rated 288-292 hp, 2015–2019.
The Volkswagen CJXA is undersquare — the 3.6535" stroke exceeds the 3.248" bore by 11.1% — a layout that trades peak RPM for leverage and torque low in the range. The 3.6535" stroke puts mean piston speed at 4,000 ft/min around 6,550 RPM, which is where a production bottom end is generally considered at its limit. Each of the 4 cylinders displaces 30.3 ci (496 cc).
9.6:1 on aluminum heads is in the range that usually runs on pump premium; aluminum sheds heat faster than iron, which makes the same number a little more forgiving.
It is one of 31 engines in the EA888 family, the largest at 121 ci. 5 factory variants share these dimensions, rated from 288 to 292 hp across 2015–2019.
| Displacement | 121 ci / 2 L |
|---|---|
| Bore | 3.248" |
| Stroke | 3.6535" |
| Cylinders | 4 |
| Configuration | I4 |
| Compression ratio | 9.6:1 |
| Bore/stroke ratio | 0.889 |
| Block material | cast iron |
|---|---|
| Head material | aluminum |
| Valvetrain | DOHC |
| Fuel type | gas |
| Advertised HP | 288–292 hp |
| Years | 2015–2019 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 2015 | CJXA net | 292 @ 5400 | 280 lb-ft @ 1800 | 9.6:1 |
| 2016 | CJXA net | 292 @ 5400 | 280 lb-ft @ 1800 | 9.6:1 |
| 2017 | CJXA net | 292 @ 5400 | 280 lb-ft @ 1800 | 9.6:1 |
| 2018 | CJXA net | 292 @ 5400 | 280 lb-ft @ 1800 | 9.6:1 |
| 2019 | CJXA net | 288 @ 5400 | 280 lb-ft @ 1800 | 9.6:1 |
Factory specification sheet.
| Bore/stroke character | 0.889 — 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 | 30.3 ci |
| Static compression | 9.6:1 — in the range that usually runs on pump premium |
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 |
|---|---|---|
| 2015 | 292 hp | CJXA |
| 2016 | 292 hp | CJXA |
| 2017 | 292 hp | CJXA |
| 2018 | 292 hp | CJXA |
| 2019 | 288 hp | CJXA |
1 factory vehicle, 2015–2019. Each year opens that model's engine table.