Porsche MA1/01 Specs
Porsche MA1/01 engine specs: 231.9 ci (3.8L), 6-cylinder, 4.0157" bore x 3.0512" stroke, 12.5:1 compression.
Dimensions
| Displacement | 231.9 ci / 3.8 L |
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| Bore | 4.0157" |
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| Stroke | 3.0512" |
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| Cylinders | 6 |
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| Compression ratio | 12.5:1 |
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| Bore/stroke ratio | 1.316 |
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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 | 385 hp |
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What these numbers mean
| Bore/stroke character | 1.316 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
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| Mean piston speed at 6,000 RPM | 3,051 ft/min — conservative for a street engine |
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| Displacement per cylinder | 38.6 ci |
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| Static compression | 12.5:1 — high enough that pump premium or better is normally required |
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