Acura K23A1 Specs
Acura K23A1 engine specs: 140.3 ci (2.3L), 4-cylinder, 3.3858" bore x 3.8976" stroke, 9:1 compression.
Dimensions
| Displacement | 140.3 ci / 2.3 L |
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| Bore | 3.3858" |
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| Stroke | 3.8976" |
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| Cylinders | 4 |
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| Compression ratio | 9:1 |
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| Bore/stroke ratio | 0.869 |
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Construction
| Block material | aluminum |
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| Head material | aluminum |
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| Valvetrain | DOHC |
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| Fuel type | gas |
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| Advertised HP | 240 hp |
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What these numbers mean
| Bore/stroke character | 0.869 — undersquare — stroke exceeds bore, which favours low-end torque |
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| Mean piston speed at 6,000 RPM | 3,898 ft/min — in the range typical of performance street engines |
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| Displacement per cylinder | 35.1 ci |
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| Static compression | 9:1 — low by modern standards, generally happy on regular pump fuel |
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