Ford I4 DOHC engine
| Ford I4 DOHC | |
|---|---|
2-litre 16 valve DOHC in Ford Scorpio | |
| Overview | |
| Manufacturer | Ford Motor Company |
| Production | 1989–2006 |
| Layout | |
| Configuration | Naturally aspirated I4 |
| Displacement | 2.0 L (1,998 cc) 2.3 L (2,295 cc) |
| Cylinder bore | 86 mm (3.39 in) 89.6 mm (3.53 in) |
| Piston stroke | 86 mm (3.39 in) 91 mm (3.58 in) |
| Cylinder block material | Cast iron |
| Cylinder head material | Aluminium |
| Valvetrain | DOHC, 2 or 4 valves × cyl. |
| Compression ratio | 9.8:1, 10.0:1, 10.3:1 |
| Combustion | |
| Fuel system | Carburettor (N8x only) Multi-point fuel injection |
| Management | Ford EEC-IV, EEC-V |
| Fuel type | Petrol |
| Oil system | Wet sump |
| Cooling system | Water-cooled |
| Output | |
| Power output | 107–150 hp (80–112 kW) |
| Torque output | 171–210 N⋅m (126–155 lb⋅ft) |
| Emissions | |
| Emissions control systems | Catalytic converter (N9C/N9D/N9E/NSD/NSE) |
| Chronology | |
| Predecessor | Ford Pinto engine |
| Successor | Ford Duratec engine |
The Ford DOHC engine is an inline 4-cylinder (I4) automotive internal combustion engine with dual overhead camshafts (DOHC), produced by the Ford Motor Company. Offered from 1989 until 2006, it was initially available as a 2.0-litre 8-valve engine, and later in 2.0 and 2.3-litre 16-valve versions. It powered various Ford models in both front wheel drive and rear wheel drive applications. It was Ford's first in-house twincam engine design to reach volume production.