A New Diesel Engine Debuts in A Jaguar XF Development Model

New Jaguar XF Development Model
New Jaguar XF Development Model

Jaguar is currently testing their most efficient engine to date, in the form of a new 2.2 litre diesel unit.

Producing 190 PS and 332 lbs ft of torque, the engine is able to return fuel consumption figures of 52.3mpg on the combined cycle, emitting 149g/km of CO2.

The new four cylinder 16 valve common rail diesel engine displaces 2,179 cc and is installed in a north-south configuration for the first time, and is currently debuting on UK roads fitted to prototype development vehicle. The new engine features a water-cooled turbocharger with low-friction pistons, new injectors and a new crankshaft. This configuration allowed Jaguar engineers to add a new oil pan and new electronic systems affecting the crankshaft which allows the new Stop-Start system to operate more efficiently, estimated to increase fuel efficiency by between five to seven per cent.

The development vehicle also features a new eight-speed ZF automatic gearbox. The seventh and eighth gears acting as overdrive gears, the new gearbox allows the new 2.2 litre engine to be optimised to deliver a swifter response and improve motorway cruising. The 0-62 mph sprint takes 8.5 seconds and top speed is 140 mph.

Engineers have been focused on sound deadening around the engine and bulkhead as well as active engine mounts which help reduce vibration. These refinements result in a 3dB reduction in cabin noise.

The new powertrain is planned to feature in a new jaguar XF model with specifications and an estimated on sale date to be announced at the New York Auto Show.

Published : 30/03/11 Author : Staff

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