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Kia D2.2 CRDi specs: 2.2L (133 ci) 4-cylinder, 84 x 98 mm (3.3071 x 3.8583 in) bore and stroke, 16:1 compression. Rated 202 hp. Rod ratio and piston speed.
The Kia D2.2 CRDi is undersquare — the 3.8583" stroke exceeds the 3.3071" bore by 14.3% — a layout that trades peak RPM for leverage and torque low in the range. The 3.8583" stroke puts mean piston speed at 4,000 ft/min around 6,200 RPM, which is where a production bottom end is generally considered at its limit. Each of the 4 cylinders displaces 33.3 ci (545 cc).
At 16:1 this is a compression-ignition engine: the ratio is the heat source that lights the fuel, not a knock limit to be managed.
It is one of 13 engines in the Smartstream family, sitting between the 61.02 ci and 213.58 ci members. Factory fitments include the Kia Sorento, Kia Carnival.
| Displacement | 133 ci / 2.2 L |
|---|---|
| Bore | 3.3071" |
| Stroke | 3.8583" |
| Cylinders | 4 |
| Compression ratio | 16:1 |
| Bore/stroke ratio | 0.857 |
| Block material | cast iron |
|---|---|
| Head material | aluminum |
| Valvetrain | DOHC |
| Fuel type | diesel |
| Advertised HP | 202 hp |
| Bore/stroke character | 0.857 — undersquare — stroke exceeds bore, which favours low-end torque |
|---|---|
| Mean piston speed at 6,000 RPM | 3,858 ft/min — in the range typical of performance street engines |
| Displacement per cylinder | 33.3 ci |
| Static compression | 16:1 — high enough that pump premium or better is normally required |
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