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Engine | Straight 4 | Straight 4 | | Straight 4 | |
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Valve train | Double overhead camshaft (per bank) | Double overhead camshaft (per bank) | | Double overhead camshaft (per bank) | |
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Valves | 4 valves per cylinder
16 total valves | 4 valves per cylinder
16 total valves | | 4 valves per cylinder
16 total valves | |
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Displacement | 85 cu in | 122 cu in | 98 cu in | 76 cu in | |
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Bore x Stroke | 3 in x 3 in
0.88 ratio | 3 in x 3 in
1 ratio | | 3 in x 3 in
0.91 ratio | |
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Compression ratio | 9.90:1 | 9.5:1 | | 9.90:1 | |
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Maximum power | 88 hp @ 5200 rpm | 259 hp @ 5300 rpm | | 65 hp @ 5200 rpm | |
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Maximum torque | 94 ft.lb @ 3200 rpm | 295 ft.lb @ 1700 rpm | | 81 ft.lb @ 3600 rpm | |
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Fuel | Petrol | Petrol | | Petrol | |
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Catalytic converter | yes | no | no | yes | |
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Construction | | Aluminium block &
Aluminium head | | | |
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Coolant | Water | | | Water | |
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Sump | Wet sumped | | | Wet sumped | |