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How Jaguar optimized the Ingenium gas engine for the F-Type

At the 2017 New York Auto Show, Jaguar showed off the new entry-level F-Type, packing a 2.0-liter, turbocharged, gasoline-fueled inline-four that produces 296 horsepower, which is built in-house in the UK. It's the debut of this branch of the Ingenium engine series, and it's also the top of the Ingenium gas range; most JLR vehicles will offer a less powerful 247-hp version. We caught up with Jaguar's engineers to figure out exactly how this high-output Ingenium engine differs, and what Jaguar had to do to fit it in the F-Type's engine bay. While all Ingenium 2.0-liter gas fours share major architecture – the aluminum block and heads, as well as the bore and stroke – there are some internal differences. The most important are the low-compression pistons, which allow for more boost without detonation. The new compression ratio is 9.5:1, compared to the 10.5:1 ratio in the 247-hp spec engines. To make the most out of more boost, you need new plumbing and a way to get more fuel into the combustion chamber. So Jaguar fitted a larger twin-scroll turbocharger that's unique to this application. It features low-friction ceramic ball bearings – Jaguar says this improves transient response. There are also new fuel injectors and a fuel pump to accommodate the increased demand for gas in the high-output engine. On the back end, there's a unique exhaust system with active flaps to give it a louder bark when called for. Of course, some new hardware and more boost means the various electronic systems that control the engine needed changes. For one, Jaguar's changed the cam timing and valve lift mapping, as well as the ignition timing. The throttle mapping and transmission calibration have also been optimized for the new engine. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. As far as the driver's concerned, the biggest change from the 247-hp engine to the 296-hp one – other than increased scoot – will be where the power peak is. The 296-hp engine makes peak power at a higher point in the rev range, which should reward drivers who generously prod the throttle and hold gears in manual mode. Remember, F-Types equipped with this engine will only be available with an automatic transmission. You should also remember that it's an excellent gearbox overall, with rapid, smooth shift characteristics, if the other 8-speed Jaguars are anything to go by.

Jaguar F-Pace prototype goes to work at the Nurburgring

Jaguar is hard at work again, testing its upcoming F-Pace crossover. And here's our latest look at the prototype testing at the Nurburgring. The tester spotted here appears the same as the one we recently saw undergoing cold-weather development, only this time it's wearing summer rubber on fullsize wheels instead of winter tires on smaller ones. It's also missing the old prototype's auxiliary lights, and a bit more camouflage covering the quarter panels. The fact that it was seen on the Nordschleife, however, bodes well for the F-Pace and speaks to its orientation: Jaguar's first crossover promises to be geared towards performance, a sort of on-road counterpart to the off-road prowess of the SUVs offered by its sister brand Land Rover. We're looking forward to seeing the finished product at the Frankfurt Motor Show in the fall, but in the meantime you can scope out the spy shots in the slideshow above.

The Jaguar XJR-15 is a 215 mph, barely-legal road car that's for sale

The late 1980s and early 1990s were awash with supercars from automakers across the globe. Classic Driver in the UK is selling one of the rarest of all of these supercars, the road-going racecar that is the Jaguar XJR-15. The XJR-15 is the lesser known sibling of the Jaguar XJ220. Only 27 were ever built. The XJ220 may not have received the same recognition and reverence as the Ferrari F40, the Porsche 959, and the McLaren F1, but for a time it held the record for the fastest road-going automobile, 217.1 mph. All of the XJ220's engineering and prowess is owed to the development of the XJR-15, which in turn owes everything to driver Tom Walkinshaw and his experience in touring and Le Mans racecars. Unlike the twin-turbocharged XJ220, the XJR-15 features a big, naturally-aspirated V12 that turned out 450 horsepower and 420 lb-ft of torque when new. The engine has a dry sump oil system, a Cosworth forged crankshaft, connecting rods, aluminum pistons, and fuel delivery from a Zytec electronically controlled sequential fuel injection system. The engine is mated to a five-speed transaxle from Tom Walkinshaw Racing, while the suspension - fabricated wishbones and horizontal pushrod-spring dampers at the front and coil springs at the rear - is pulled straight from the XJR-9 racecar. At the time, the car was capable of hitting 60 mph in under four seconds and topped out at 215 mph, just shy of the mark later set by the Jaguar XJ220. The XJR-15 was also the first road car to make extensive use of carbon fiber. In fact, at 2,315 lbs, the car's listed weight is less than that of a new ND Mazda Miata. The body was designed by future McLaren F1 engineer Peter Stevens. While the McLaren and Porsche were more complete and well rounded machines, the XJR-15 was a bare bones, uncompromised track machine. The interior was barely more than a carbon tub fitted with a pair of one-piece seats. The car in this listing is chassis number 21 and only has 1,400 miles on the odometer. Some minor modifications to the hinges allow the hood and engine cover to be quickly and easily opened. The car is listed for GBP450,000, or about $560,000. Not cheap, but what rare, early 1990s supercar is? Related Video: News Source: Classic Driver via Car Buzz Jaguar Coupe Performance ferrari f40 jaguar xj220