Audi AFN Specs
Audi AFN engine specs: 116 ci (1.9L), 4-cylinder, 3.1299" bore x 3.7598" stroke, 19.5:1 compression.
Dimensions
| Displacement | 116 ci / 1.9 L |
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| Bore | 3.1299" |
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| Stroke | 3.7598" |
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| Cylinders | 4 |
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| Compression ratio | 19.5:1 |
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| Bore/stroke ratio | 0.832 |
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Construction
| Block material | cast iron |
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| Head material | aluminum |
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| Valvetrain | SOHC |
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| Fuel type | diesel |
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| Advertised HP | 110 hp |
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What these numbers mean
| Bore/stroke character | 0.832 — undersquare — stroke exceeds bore, which favours low-end torque |
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| Mean piston speed at 6,000 RPM | 3,760 ft/min — in the range typical of performance street engines |
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| Displacement per cylinder | 29.0 ci |
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| Static compression | 19.5:1 — high enough that pump premium or better is normally required |
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