Engine Land Rover And Jaguar 508PN 5.0 TDV8

The 508PN is a 5L petrol engine. Since 2009, it has been installed on several models of the once British, and now owned by the Indian automaker Tata Motors, the Land Rover brand (for example, on the Discovery).

Applicability of 508PN engine

  • Land Rover : Discovery (2009-2013), Range Rover (2009-2012), Range Rover Sport (2009-2013)
  • Jaguar : XF (2009-), XJ (2009-), XK (2009-)
Volume (cm3)5000
Power (hp)375-385
Torque510-515 Nm
Timing driveChain
Environmental classEuro 5
Fuel typeGasoline AI-95
ICE featuresDOHC
Supply systemdirect injection
hydraulic liftersYes
Cylinder blockCast iron V8
cylinder headaluminum 32v
Cylinder diameter92.5 mm
Stroke93 mm
Compression ratio11.5
Phase regulator
Engine oil
Average resource300,000 km

Description and Main Features

The 508PN motor has a V8 configuration. The power of this internal combustion engine is from 375 to 385 hp, and fuel consumption is from 11.1 to 14.1 liters per 100 km.

The 508PN engine is water-cooled and has a timing chain drive, and the fuel mixture is supplied here through a carburetor. It is also worth noting that this engine has a DOHC scheme (two camshafts at the top).

In general, this engine is very similar to another engine from the same series – 508PS . Their main difference is that the 508PS uses a supercharger, while the 508PN is naturally aspirated.

Disadvantages and problems of the 508PN engine

The 508PN engine can be called quite reliable, but still it does not last forever. And therefore, sooner or later, some parts will begin to break down and problems will appear.

In particular, drivers of 508PN engine some time after the start of operation may experience a loss of power and a deterioration in dynamics. And it is believed that this is due to the constant use of low-quality gasoline.

Another possible nuisance is the incorrect operation of the cooling system or some of its parts. This can lead to overheating, and the consequence of overheating, in turn, can be deformation and / or loss of integrity of the cylinder head. Therefore, experts recommend that drivers constantly monitor the operating temperature of the internal combustion engine.

Also, the reason for the failure of the 508PN can be the cranking of the connecting rod bearings, the breakage of the connecting rods and the burning of the piston.

Tuning prospects

It is possible to chip tune the 508PN engine, but the output in terms of power from this operation will not be too great.

However, there is another option – 508PN can be subjected to such a procedure as boring. It is worth noting that even twenty years ago boring was carried out mainly in order to simply repair the engine and return the cylinders to the correct circle shape.

Now it is often included in the list of their services by tuning masters. The fact is that larger pistons can be inserted into bored cylinders. Such pistons, of course, are able to suck in more air-fuel mixture, and as a result, this gives an increase in horsepower.

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