Nissan RB 9:1 Specs
Nissan RB · 3.386" × 2.823" · 9:1 engine specs: 152.4 ci (2.5L), 6-cylinder, 3.3858" bore x 2.8228" stroke, 9:1 compression.
Dimensions
| Displacement | 152.4 ci / 2.5 L |
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| Bore | 3.3858" |
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| Stroke | 2.8228" |
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| Cylinders | 6 |
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| Compression ratio | 9:1 |
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| Bore/stroke ratio | 1.199 |
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Construction
| Block material | cast iron |
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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 | 245–276 hp |
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What these numbers mean
| Bore/stroke character | 1.199 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
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| Mean piston speed at 6,000 RPM | 2,823 ft/min — conservative for a street engine |
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| Displacement per cylinder | 25.4 ci |
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| Static compression | 9:1 — low by modern standards, generally happy on regular pump fuel |
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Variants sharing these dimensions (2)
These records share identical bore, stroke, displacement and compression. They differ by model year and factory power rating.
| Year | Advertised HP | Code |
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| — | 245 hp | RB25DET |
| — | 276 hp | RB25DET NEO |
Vehicles (6)
- Nissan Skyline R33 GTS25t
- Nissan Laurel C34
- Nissan Cefiro A32
- Nissan Skyline R34 GT-T
- Nissan Laurel C35
- Nissan Stagea WC34
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