Jaguar AJ-V6 engine
The Jaguar AJ-V6 engine is a piston engine based on the Ford Duratec V6 engine. The Duratec V6 was originally designed by Porsche, under contract to Ford, using a proprietary Cosworth cylinder head design to meet Ford's design brief. 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, and displacements.
The AJ-V6 engine has an aluminium engine block. Its aluminium DOHC cylinder heads were designed by Jaguar Cars. Using sequential fuel injection, it has 4 valves per cylinder with VVT; fracture-split forged powder metal connecting rods; one-piece cast camshaft; and direct-acting mechanical bucket tappets — features that differentiate the AJ-V6 from the Ford and Mazda versions.
AJ20
The AJ20 version has an bore and stroke, and displaces. Although it displaces nearly 2.1-litres, it is marketed as a "2.0". It produces and. The compression ratio is 10.75:1.This engine is used in the following vehicles:
- Jaguar X-Type 2.0
AJ25
The AJ25 displaces. It shares the AJ20's bore and is stroked to, the same as the AJ30. It delivers at 6800 rpm with of torque at 3000 rpm with 10.3:1 compression.This engine is used in the following vehicles:
- 2001–2009 Jaguar X-Type 2.5, and
- 2002–2006 Jaguar S-Type 2.5, and
AJ30
The AJ30 has an bore and shares the AJ25's stroke, giving a displacement of. In the X-Type, the engine produces and. 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.This engine is used in the following vehicles:
- 2000–2008 Jaguar S-Type, and
- 2002–2009 Jaguar X-Type, and
- 2003–2010 Jaguar XJ, and
- 2008–2011 Jaguar XF and
- 2000–2001 Lincoln LS and
- 2002–2006 Lincoln LS and