Lion Engine Family

[Keith Browning]

Lion engine family

The Lion engine family was developed and manufactured at Ford's Dagenham Diesel Center for further use in PSA (Peugeot Citroen) vehicles as "DT17" as part of joint venture which begun in 1999, in case of Jaguar as the "AJD-V6" and in case of Land Rover as the TDV6. The engines are sharing the same bore and stroke, displacing 2.7 L in the V6 and 3.6 L in the V8 model; the V6, which meetsEuro IV emissions standards, was launched in 2004 and the V8 in 2006.

 A 3.0 L V6 was launched in 2009 and it was based on the 2.7 L.

Lion V6:
To improve the engine’s low torque, mainly for off roading and towing applications, Land Rover installed a large capacity single turbocharger, rather than a twin turbo system; in addition the engine was fitted with a large engine driven cooling fan to support low speeds when off roading, high loads and hot conditions. Further more the Land Rover variant of the Lion V6 includes a deeper, high capacity sump with improved baffles to maintain oil pressure at extreme angles and multi layered seals to keep dust, mud or water at the bay and different transmission bell housing bolt patterns. The Lion V6 – constructed from compacted graphite iron – is a member of the Ford Duratorq family and is produced at Ford’s Dagenham engine plant; 35000 engines were produced between April - December of 2004.

The 3.0 L V6, known as the Gen III, superseded the 2.7 L and uses parallel sequential turbochargers and an upgraded common rail injection system incorporating fuel injectors with piezo crystals fitted nearer to the tip to reduce engine noise and a metering mode to reduce oversupplying fuel, decreasing fuel consumption and unused fuel temperature. The parallel sequential turbocharger system utilizes the smaller of the two turbos when the engine is running at low revolutions; once the engine has reached 2800 rpm the larger turbocharger is engaged to pressurize the intake.

Jaguar tested fitting the engine to its XK model but didn’t carry the project over to production.

The 3.0 L variants used by Land Rover feature the 2.7 L’s off roading adaptations plus calibration of the engine’s electronics to allow the use of low quality fuels.

2.7D/TDV6/HDi:
Engine configuration & engine displacement
60 degree V6 engine, single and twin turbo diesel, 2720 cm3 (166 cui), bore x stroke 81.0 mm × 88.0 mm (3.19 in × 3.46 in), compression ratio 17.3:1

Cylinder block & crankcase
Compacted graphite iron cross bolted block

Cylinder heads & valvetrain
High strength aluminium, DOHC

Aspiration
Single turbocharger or twin turbochargers with air to air intercooler, electronically actuated variable geometry with transient over boost capability, port deactivation system

Fuel system & engine management
Siemens Common rail (CR) direct diesel injection, maximum injection pressure of ,650 bars (23900 psi), piezo injectors

DIN-rated motive power & torque outputs
190 HP & 440 NM (320 lb-ft) – Land Rover Discovery 3, Range Rover Sport, Ford Territory
197 HP & 440 NM (320 lb-ft) – Peugeot 407, Peugeot 607
204 HP & 435 NM (321 lb-ft) – Citroen C5, Citroen C6, Jaguar S-Type, Jaguar XF, Jaguar XJ

3.0D/TDV6/SDV6/HDi:
Engine configuration & engine displacement
60 degree V6 engine, twin turbo diesel, 2993 cm3 (183 cui), bore x stroke 84.0 mm × 90.0 mm (3.31 in × 3.54 in), compression ratio 16.4:1

Cylinder block & crankcase
Compacted graphite iron cross bolted block

Cylinder heads & valvetrain
High strength aluminium, DOHC

Aspiration
Twin turbochargers with air to air intercooler, electronically actuated variable geometry with transient over boost capability, port deactivation system

Fuel system & engine management
Siemens Common rail (CR) direct diesel injection, maximum injection pressure of 2000 bars (29000 psi), piezo injectors

DIN-rated motive power & torque outputs
237 HP & 450 NM (330 lb-ft) – Citroen C5, Citroen C6, Peugeot 407, Peugeot 407 Coupe
237 HP & 500 NM (370 lb-ft) – Jaguar XF, Land Rover Discovery 4, Range Rover Sport
251 HP & 600 NM (440 lb-ft) – Land Rover Discovery 4, Range Rover Sport
271 HP & 600 NM (440 lb-ft) – Jaguar XF, Jaguar XJ, Range Rover

Lion V8:
Built at Ford’s Dagenham engine plant in Essex, the 3.6 L V8 twin turbo diesel engine began production in April 2006.

Much speculation in the United States has focused on this engine as a possible Diesel entrant in the F-150 pickup truck and Expedition SUV. It was announced that the new F150 engine will be based on this engine and enlarged to 4.4 L. The Cleveland Engine plant recently began small scale production of the exotic compacted graphite iron (CGI) used in the block's construction, leading many to expect production of the engine there.

3.6 TDV8:
Engine configuration & engine displacement
90 degree V8 engine, twin turbo diesel, 3630 cc (222 cui), bore x stroke 81.0 mm × 88.0 mm (3.19 in × 3.46 in), compression ratio 17.3:1

Cylinder block & crankcase
Compacted graphite iron cross bolted block

Cylinder heads & valvetrain
High strength aluminium, DOHC

Aspiration
Twin turbochargers with air to air intercooler, electronically actuated variable geometry with transient over boost capability, port deactivation system

Fuel system & engine management
Siemens Common rail (CR) direct diesel injection, maximum injection pressure of 1650 bars (23900 psi), piezo injectors

DIN-rated motive power & torque outputs
270 HP & 640 NM (470 lb-ft) – Range Rover, Range Rover Sport