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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.

2014 Jaguar XFR-S super sedan is 550-HP worth of cool

The 2014 Jaguar XFR-S was considered last year, teased last week and now has been totally let loose. The most powerful sedan the company has ever made and the newest addition to its line of R-S performance cars - following the XKR-S - and we'll be getting even fewer of them than we thought. 200 had been the rumored allotment for the US, but the official word now is that we'll see just 100.
Each XFR-S will use the same 5.0-liter supercharged V8 that powers the XKR-S, meaning a 40-horsepower and 41-pound-foot bump over the XFR for 550 hp and 502 lb-ft in total. Shifting through the adaptive, eight-speed ZF transmission gets it from standstill to 60 mph in 4.4 seconds, but for all that, it gets the same gas mileage as the XFR, aided by its stop/start system, and so doesn't get hit with a gas guzzler tax.
Other XKR-S bits have made the jump, including an upgraded suspension front and rear, the near-straight pipes for the cracking exhaust note we drank up like ambrosia and twenty-inch, six-spoke lightweight wheels that are an inch wider than on the XFR. Lateral stiffness is up 30 percent, the electronic systems have been recalibrated to handle the extra oomph, throttle response has been sharpened and can be made even sharper by going into Dynamic Mode.

Jaguar recalling XK Convertible and XF 2.0T sedan for unrelated issues

Jaguar has announced that it will be recalling 1,989 XK Convertibles produced between October 1, 2010 and August 1, 2013. Model years ranging from 2011 to 2014 are part of the recall.
The issue has to do with one of the switches the switch that controls the opening and closing of the convertible top. The switch also has to do with the operation of the power windows. According to the Feds, the switch doesn't move down to close the power windows, meaning that the window could accidentally close on the finger or arm of an inattentive person.
In related news, Jaguar is also recalling 940 2013 XF sedans powered by the 2.0-liter turbocharged four-cylinder engine for a hose that can detach underhood, which could cause the engine to stall or could leave the driver without power steering or brakes.