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

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

0 comments 📅16 June 2017, 05:15

At the 2017 New York Auto Prove, 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-race 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 latitude; most JLR vehicles will offer a less powerful 247-hp version. We caught up with Jaguar’s engineers to statue out exactly how this high-output Ingenium engine differs, and what Jaguar had to do to fit it in the F-Paradigm’s engine bay.

While all Ingenium 2.0-liter gas fours share major architecture – the aluminum impediment and heads, as well as the bore and stroke – there are some internal differences. The most significant are the low-compression pistons, which allow for more boost without detonation. The new compression relationship is 9.5:1, compared to the 10.5:1 ratio in the 247-hp spec engines.

To make the most out of more rise, you need new plumbing and a way to get more fuel into the combustion chamber. So Jaguar tailor-made a larger twin-scroll turbocharger that’s unique to this application. It features low-fretting ceramic ball bearings – Jaguar says this improves fleeting response. There are also new fuel injectors and a fuel pump to accommodate the increased insist on for gas in the high-output engine. On the back end, there’s a unique exhaust system with effective flaps to give it a louder bark when called for.

Of course, some new tools and more boost means the various electronic systems that control the machine needed changes. For one, Jaguar’s changed the cam timing and valve lift mapping, as famously as the ignition timing. The throttle mapping and transmission calibration have also been optimized for the new locomotive.

As far as the driver’s concerned, the biggest change from the 247-hp engine to the 296-hp one – other than increased scoot – desire be where the power peak is. The 296-hp engine makes peak power at a higher speck in the rev range, which should reward drivers who generously prod the throttle and clutch gears in manual mode. Remember, F-Types equipped with this machine will only be available with an automatic transmission.

You should also commemorate that it’s an excellent gearbox overall, with rapid, smooth shift characteristics, if the other 8-expeditiousness Jaguars are anything to go by. However, this particular unit is slightly smaller and lighter than the one build in the V6 and V8 models. Jaguar wouldn’t get into specifics about why this is, but a guess is that the group shaved some ounces off by only making it as strong as it needs to be. More metal equals more majority, so there’s no sense fitting a heavier gearbox rated for much greater torque. Further, the particular weight savings from downsizing the auto wasn’t revealed.

To get it all to fit under the control of the hood, Jaguar had to create a variety of new parts. The engine mounts, auxiliary fossil pump, fuel lines, brake lines, a unique engine cover, smear shields, a new transmission tunnel liner, HVAC unit, and fuel tank were all created specifically for this variant. The oil sump is also inimitable to this application. However, the company didn’t need to alter the chassis construction at all to accommodate the Ingenium engine – that is to say that the body shell is the exact same as in other-engined variants.

All-in-all, it’s a pretty standard gamut of alterations required to fit it into the F-Type, and the kidney of things you’d expect for a hotted-up engine variant. The real question is how it’s going to manipulate, and we won’t find that out until later this year. Jaguar has thus far made all its F-Types growl with frighten, so it’ll be interesting to see how the inline-four sounds in the roadster and coupe. There are hints in the video embedded on high, but stay tuned for in-person impressions in a few months.

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