Archive for April, 2011

Jaguar unveils new 2.2L diesel engine, tested with the prototype of the 2012 XF

April 12th, 2011

Jaguar recently announced a new engine claimed to be their most efficient as yet with the 2.2L diesel engine capable of producing 187 horsepwoer and a torque of 332 pound feet. The initial numbers report a fuel mileage of 52.3miles for every gallon while fitted to a 2012 XF prototype. The new engine is also said to just spew out 149 grams per kilometer of carbon dioxide.

The engine was tested on the UK roads while on a north-south configuration which is also a first time for Jaguar. The new diesel unit has a turbocharger that makes use of low-friction pistons and is water-cooled, new injectors, and a new crankshaft. The configuration of the powerplant paved the way for Jaguar engineers to incorporate an oil pan and electronic systems which adds to the efficiency of the Stop-Start feature of the engine.

The Intelligent system for the Start-Stop avoids the hassle of a prolonged shut down to start up which is a common occurrence with such systems. The engine requires shorter time to restore the power of the engine because of the new system which makes use of new sensors and fuel pressure holding technology. This saves the driver all the frustration when stopping the car on a busy intersection and having to go quickly again but the car takes time to restart. The start-Stop functions saves around 5% to 7% of fuel.

Aside from the new 2.2L, the prototype also features a ZF 8-speed automatic gearbox. The new transmission gives way to effortless cruising and power delivery in demanding road or driving conditions. The development car can swiftly go from 0 to 62 miles per hour in just 8.5 seconds. The top speed is pegged at 140 mph.

The new engine will be fitted to the future production XF models with the sale date to be announced possibly during the auto show in New York.