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Infiniti's variable compression engine in the 2019 QX50 is the first of its kind

The world's first variable compression ratio engine is here, in a production car. That car is the 2019 Infiniti QX50, debuting this week at the Los Angeles Auto Show. The midsize crossover has seen a refresh that has brought it an all-new platform together with new driver assist features, but it's the engine that's the centerpiece here. Nearly everything is continuously variable under the hood of the QX50 – not only the new shift-by-wire XTRONIC CVT. The new VC-Turbo gasoline engine is able to change its compression ratio from 8:1 to 14:1, or anything in between depending of the driving situation; whether there is need for top-end power or turbodiesel-like torque from low revs, or optimized fuel economy. The pistons' reach is continuously adjusted by an electric "Harmonic Drive" motor, which controls a multi-link system, affecting the top-dead-center of the pistons and changing the compression. The engine can also switch between efficiency-maximizing Atkinson cycle and regular combustion cycle, on the go – and there's both multipoint injection and gasoline direct injection employed. The result is 268 horsepower at 5,600 rpm and 280 pound-feet of torque at 4,400 rpm; good figures for a 2.0-liter four-cylinder gasoline engine with a single-scroll turbocharger. Infiniti says that the FWD version's fuel economy of 27 miles per gallon combined is 35-percent better than the previous-generation V6 engine; in AWD guise, it reaches 26 mpg, which is a 30-percent improvement. The new engine is pretty much all-aluminum, but the vaguely magical-sounding "transformative multi-link components" behind the variable compression system are made from high-carbon steel alloy. The engine's multi-link system also enables it to do away with any balancing shafts, and Infiniti compares its smoothness to a V6 rather than a regular four-cylinder. In addition to the aforementioned tech, the VC-Turbo engine has the world's first active engine mount vibration damping system to smoothen its operation even further. Related Video:

Is Infiniti shelving plans for Q50 Eau Rouge super sedan?

If you've been looking forward to Infiniti putting the Q50 Eau Rouge concept into production, we've got what could be bad news for you, because word has it that Infiniti may be shelving its super-sedan project. This, according to Infiniti's former chief executive Johan de Nysschen (now head of Cadillac) in a private Facebook post cited by Jalopnik. According to the post, de Nysschen "heard a rumor that Noboru Tateishi is going to cop-out and shelve the Eau Rouge project now that I'm not there to pressure him." Tateishi is a senior engineer and corporate vice president at parent Nissan who, in de Nysschen's estimation, has "more enthusiasm for 'driver's aid's,' apparently, than 'driver's cars.'" Named for a famous corner at the Spa-Francorchamps circuit in Belgium, the Eau Rouge is a concept version of the Infiniti Q50 sedan. It bowed first at the Detroit Auto Show almost a year ago and then showed up in Geneva with the 560-horsepower, 3.8-liter twin-turbo V6 beating heart of a Nissan GT-R. Rumors ever since have hinted heavily at the Eau Rouge making production, with Infiniti going so far as to allow the automotive media – including us – the chance to drive a prototype of the would-be model. But without Johan (or, for that matter, former Infiniti chairman Andy Palmer, now head of Aston Martin) there to see it through, the may just be grinding to a halt – or perhaps de Nysschen is just giving his former colleagues a good ribbing. We've reached out to Infiniti to learn more, and we'll update as soon as we hear back from them. Featured Gallery Infiniti Eau Rouge Prototype View 25 Photos News Source: JalopnikImage Credit: Copyright 2014 AOL Infiniti Concept Cars Performance Sedan infiniti q50 infiniti q50 eau rouge infiniti q50 eau rouge concept

Formula 1 seeking independent engine supplier

Formula 1 could get a new engine supplier in the near future, if Bernie Ecclestone and the independent teams gets their way. According to Autosport, the FIA is soon to open the contract up for bids, and there are already several manufacturers that have expressed interest. Currently Mercedes, Ferrari, Renault, and Honda supply engines – both to their own premier teams (Red Bull and McLaren for the latter two) but also to other teams like Williams, Sauber, and Toro Rosso. Because the new turbocharged V6 hybrid power units cost those four suppliers so much to develop, they're charging their customer teams big bucks – around $20-30 million per season – to provide the engines. These costs are much higher than the $10 million or so it used to cost to purchase a V8 engine under the previous regulations. Ecclestone figures it's time to bring in another supplier who will not run their own team and not play favorites, but will supply engines to private teams at a lower cost. There are already a number of potential suppliers under consideration. One of them is said to be Cosworth, which has a long history in the series stretching back to 1963. The British firm stepped back between 2007 and 2009, returned in 2010, and dropped out again after 2013. The development could be of particular benefit to Red Bull, which has been unable to find an engine supplier and could be forced out of the series as a result. The team has long been powered by Renault, but that relationship has grown sour. And the other three engine manufacturers have not been forthcoming in offering an alternative arrangement for the team. Related Video: News Source: AutosportImage Credit: Cosworth Motorsports Ferrari Honda Infiniti McLaren Mercedes-Benz Renault F1 engine contract