Jaguar AJ-V6 engine
| Jaguar AJ-V6 | |
|---|---|
| Overview | |
| Manufacturer | Jaguar Cars |
| Production | 2000-2011 |
| Combustion chamber | |
| Configuration | 60° V6 |
| Displacement |
|
| Cylinder bore |
|
| Piston stroke |
|
| Cylinder block alloy | Aluminum |
| Cylinder head alloy | Aluminum |
| Valvetrain | DOHC |
| Compression ratio |
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| Combustion | |
| Fuel system | Sequential multi-port fuel injection |
| Fuel type | Gasoline |
| Oil system | Wet sump |
| Cooling system | Water-cooled |
| Chronology | |
| Predecessor | Jaguar AJ16 |
| Successor | Jaguar AJ126 |
The Jaguar AJ-V6 engine is a specialized version of Ford's Ford Duratec V6 engine. One notable addition is the use of variable valve timing, a feature also shared with Mazda's version of the engine. It is available in 2.1 L, 2.5 L and 3.0 L displacements.
Jaguar's AJ-V6 engine has an aluminium engine block and aluminium DOHC cylinder heads. It uses SFI fuel injection, has 4 valves per cylinder with VVT, features fracture-split forged powder metal connecting rods and a one-piece cast camshaft and has direct-acting mechanical bucket (DAMB) tappets, these design aspects differentiating the AJ-V6 from the Ford and Mazda versions.
The AJ20 2.1 L (2099 cc) version has an 81.6 mm (3.2 in) bore and 66.8 mm (2.6 in) stroke. Although it displaces nearly 2.1 litres, it is marketed as a "2.0". It produces 157 hp (117 kW; 159 PS) and 148 lb·ft (201 N·m). The compression ratio is 10.75:1.
This engine is used in the following vehicles:
The AJ25 is a 2.5 L (2495 cc/152 in³) version built in Ford's Cleveland, OH #2 factory. It shares the 2.1's 81.6 mm (3.2 in) bore and is stroked to 79.5 mm (3.1 in), the same as the 3.0. It delivers 192 hp (143 kW; 195 PS) at 6800 rpm with 178 lb·ft (241 N·m) of torque at 3000 rpm from 10.3:1 compression.
This engine is used in the following vehicles:
The AJ30 is a 3.0 L (2967 cc) version and is the most common, especially considering the Duratec 30. It has an 89 mm (3.5 in) bore and shares the 2.5's 79.5 mm (3.1 in) stroke. In the X-Type, it produces 231 hp (172 kW; 234 PS) and 209 lb·ft (283 N·m). The Jaguar XF debuted a refined version of the AJ30 with continuously variable cam-phasing and variable geometry air intakes to increase power and broaden the powerband up to its 6800 rpm redline.
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