Mazda S5-DPTS Specs
Mazda S5-DPTS engine specs: 91.5 ci (1.5L), 4-cylinder, 3.0709" bore x 3.0866" stroke, 14.8:1 compression.
Dimensions
| Displacement | 91.5 ci / 1.5 L |
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| Bore | 3.0709" |
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| Stroke | 3.0866" |
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| Cylinders | 4 |
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| Compression ratio | 14.8:1 |
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| Bore/stroke ratio | 0.995 |
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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 | diesel |
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| Advertised HP | 105 hp |
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What these numbers mean
| Bore/stroke character | 0.995 — square — bore and stroke are within 5%, a balanced compromise |
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| Mean piston speed at 6,000 RPM | 3,087 ft/min — conservative for a street engine |
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| Displacement per cylinder | 22.9 ci |
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| Static compression | 14.8:1 — high enough that pump premium or better is normally required |
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