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Volkswagen CZTA specs: 1.4L (85.1 ci) 4-cylinder, 74.5 x 80 mm (2.9331 x 3.1496 in) bore and stroke, 10:1 compression. Rated 147-150 hp, 2016–2021.
The Volkswagen CZTA is undersquare — the 3.1496" stroke exceeds the 2.9331" bore by 6.9% — a layout that trades peak RPM for leverage and torque low in the range. The 3.1496" stroke does not reach 4,000 ft/min of mean piston speed until about 7,600 RPM, so piston speed is not what limits this engine's revs — valvetrain and breathing are. Each of the 4 cylinders displaces 21.3 ci (349 cc).
10:1 is in the range that usually runs on pump premium.
It is one of 4 engines in the EA211 family, the smallest at 85.1 ci. 6 factory variants share these dimensions, rated from 147 to 150 hp across 2016–2021.
| Displacement | 85.1 ci / 1.4 L |
|---|---|
| Bore | 2.9331" |
| Stroke | 3.1496" |
| Cylinders | 4 |
| Configuration | I4 |
| Compression ratio | 10:1 |
| Bore/stroke ratio | 0.931 |
| Fuel type | gas |
|---|---|
| Advertised HP | 147–150 hp |
| Years | 2016–2021 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 2016 | CZTA net | 150 @ 5000 | 184 lb-ft @ 1400 | 10:1 |
| 2017 | CZTA net | 150 @ 5000 | 184 lb-ft @ 1400 | 10:1 |
| 2018 | CZTA net | 150 @ 5000 | 184 lb-ft @ 1400 | 10:1 |
| 2019 | CZTA net | 147 @ 5000 | 184 lb-ft @ 1400 | 10:1 |
| 2020 | CZTA net | 147 @ 5000 | 184 lb-ft @ 1400 | 10:1 |
| 2021 | CZTA net | 147 @ 5000 | 184 lb-ft @ 1400 | 10:1 |
Factory specification sheet.
| Bore/stroke character | 0.931 — undersquare — stroke exceeds bore, which favours low-end torque |
|---|---|
| Mean piston speed at 6,000 RPM | 3,150 ft/min — conservative for a street engine |
| Displacement per cylinder | 21.3 ci |
| Static compression | 10:1 — 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 |
|---|---|---|
| 2016 | 150 hp | CZTA |
| 2017 | 150 hp | CZTA |
| 2018 | 150 hp | CZTA |
| 2019 | 147 hp | CZTA |
| 2020 | 147 hp | CZTA |
| 2021 | 147 hp | CZTA |
2 factory vehicles, 2016–2021. Each year opens that model's engine table.