| Alfa Romeo 690 engine | |
|---|---|
| Overview | |
| Manufacturer | Alfa Romeo |
| Also called | Alfa Romeo 690RC |
| Production | 1996 |
| Layout | |
| Configuration | Naturally aspirated 90°V6 |
| Displacement | 2.5 L; 152.4 cu in (2,497 cc) |
| Cylinder bore | 96.0 mm (3.78 in)[1] |
| Piston stroke | 57.5 mm (2.26 in)[1] |
| Valvetrain | 24-valve,DOHC, four-valves per cylinder |
| Compression ratio | 13:1[1] |
| RPM range | |
| Max. engine speed | 12,000 rpm[1] |
| Combustion | |
| Fuel system | Fuel injection |
| Oil system | Dry sump |
| Output | |
| Power output | 373 kW (500 hp) @ 11,875 rpm[1] |
| Torque output | 320 N⋅m (236 lb⋅ft) @ 9,500 rpm[1] |
| Dimensions | |
| Length | 900 millimetres (35 in) |
| Width | 885 millimetres (34.8 in) |
| Height | 485 millimetres (19.1 in) |
| Dry weight | 85–110 kg (187–243 lb) |
TheAlfa Romeo 690 engine is a custom-built, production-based, high-revving, prototype,four-stroke, 2.5-liter,naturally aspirated,V6racingengine, designed, developed and produced byAlfa Romeo, purpose-built for the1996ITC season. It was loosely based on thePRV engine, used in theLancia Thema 6v.[1][2][3]
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