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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 I-Pace makes transition to production with hardly any changes

It looks like Jaguar designer Ian Callum wasn't kidding when he said the I-Pace concept was "a preview of a five-seat production car that will be on the road in 2018." Based on these spy photos, the production I-Pace will look darn near identical to the concept. The prototype seen above, in a unique and rather groovy green camouflage wrap, retains the swoopy cab-forward design of its concept predecessor. The headlights have the same shape and still sweep back nearly to the front wheel wells, and the door handles are still flush mounted ovals placed low on the doors. At the back, the crisp crease marking the trailing edge of the hatch is intact, as well as the triangular points on the rear spoiler. There have been a few minor changes here and there. At the front, the grille doesn't have quite as much depth as the concept, and the base of the front bumper doesn't have as aggressive an air dam. The big heat extractor vent in the hood is also gone. The rear bumper has also been rounded off a bit more with a simpler rear diffuser. The side glass is in production form, so now there are seams that show where the glass rolls down. It appears the rear doors will have quite a small glass opening, as the seam is roughly at the half-way point of the window. If the mechanicals of the concept end up as unchanged as this prototype's exterior, expect the production I-Pace to have a pair of electric motors that will produce 400 horsepower and 516 lb-ft of torque. Jaguar estimates these will propel the car to 60 mph in about 4 seconds. The motors will be supplied with power from a 90 kWh lithium-ion battery, which Jaguar says will provide a range of 220 miles. With a target date of 2018, we would expect to see the production model revealed at the end of 2017 or early in 2018. Related Video:

David Brown Speedback GT marks US debut at The Quail

The British invasion has officially deployed another expeditionary force to these American shores with the arrival of the David Brown Speedback GT. The classically styled English grand tourer debuted nearly a year and a half ago, and has been racking up orders from discerning customers in the UK and across continental Europe. As promised, it has now made its American debut at the swanky Monterey event known as The Quail, A Motorsports Gathering. The Speedback GT is a coachbuilt grand touring coupe made by British startup David Brown Automotive. It's based on a Jaguar XKR, but reskinned inside and out to give it the look and feel of a classic Aston Martin – little wonder given the name it shares with the former Aston chief whose initials still adorn the DB model line. Underneath the retro bodywork lies Jaguar's celebrated 5.0-titer supercharged V8, giving the Speedback thoroughly modern levels of muscle with 510 horsepower and 461 pound-feet of torque. The resulting 0-60 time of 4.6 seconds and top speed of 155 miles per hour are suitably quick – not quite time-warping, but the performance is certainly nowhere near as old-school as the design would lead you to believe. Call it the best of both worlds, then, if you dig the styling. But don't expect everyone to be jumping on this particular gentlemanly bandwagon. At nearly half a million pounds sterling – over $750k at current exchange rates – it's sure to keep out the riffraff of which "the rest of us" are most certainly part. Featured Gallery David Brown Speedback GT: Monterey 2015 View 14 Photos Image Credit: Copyright 2015 Drew Phillips / AOL Misc. Auto Shows Jaguar Coupe Luxury Pebble Beach david brown automotive