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New details emerge on Inifiniti QX50’s unique new variable-compression engine

Infiniti will release the world's first production variable-compression engine when it releases the 2019 QX50 midsize SUV sometime next year. Now we have some new details on the innovative new engine, which Infiniti is calling VC-T, for Variable Compression Turbo, after the luxury brand offered a prototype test drive. We wrote extensively about the complicated technology underpinning the new engine last year. It's the latest novel development that could represent a range-extender, if you will, for the embattled internal combustion engine in an era when automakers and governments are shifting their focus to electric vehicles. The VC-T is a new inline-four, 2.0-liter that combines the power of a high-performance turbo gasoline engine with the torque and efficiency of an advanced diesel engine, but without the latter's notorious emissions. It features the ability to seamlessly raise or lower the stroke of the pistons in the combustion chamber, depending on the driving conditions it detects and inputs from the driver, to select the best compression ratio—anywhere between 8:1, typical for high-performance engines, and 14:1 for high efficiency. In essence, it delivers the performance of a V6 but is much more efficient, with improved fuel efficiency of between 10 to 15 percent with its best competitors, per Car and Driver. You can view how it works in motion via the video below. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. It's also quieter, more lightweight and compact than V6 engines with comparable power outputs, estimated at 268 horsepower and 288 pound-feet of torque. In a prototype test drive, Car and Driver writes that the engine "felt very conventional" and responsive, with strong and smooth acceleration. "The only indication you have that the compression ratio is changing is from an indicator in the instrument cluster next to the boost gauge." The engine is expected to deliver fuel economy gains of 27 percent in combined city-highway EPA rating over the outgoing QX50, which had a 3.7-liter V6. The 2019 model, fitted with the VC-T, should get about 26 mpg in combined fuel economy, and it will get to 60 mph almost one second faster than its four-cylinder counterparts, Nissan's chief powertrain engineer, Shinichi Kiga, told Automotive News. The VC-T engine is the result of 20 years of development spanning more than 100 prototypes and around 300 patents at Nissan.

Infiniti signs four-year deal to become title sponsor of Red Bull Racing

The chief of Infiniti's Formula One motorsport involvement, Andreas Sigl, said just last week that the brand was "going longer and deeper" into its collaboration with Red Bull, and the proof has already come: the Japanese luxury brand has signed a four-year deal to become the title sponsor of Red Bull Racing. From next year the team will be Infiniti Red Bull Racing.
The move cements Infiniti's intention to make the most of the already-ongoing technical collaboration it has had with Red Bull Racing for two years - this year Milton Keynes team has been testing Infiniti's Scratch Heal paint for aero properties and during the young driver test it used KERS batteries that were wholly developed by Infiniti's parent company, Nissan.
Earning a tip of the hat for not giving into cheap-trick branding, the engines will continue to be branded as Renault. Renault/Nissan CEO does not "want any confusion within the Alliance as to who does what."

The Infiniti Q60 Black S gets an F1 KERS system

This is the Infiniti Q60 Black S that will be debuting at the Geneva Motor Show, sporting some intense bodywork and an F1-inspired powertrain. It exists to draw a closer parallel between the Renault F1 program and the Infiniti brand – a relationship that's surely easier to understand in Europe than it is here, but so be it. Other than the wild bodywork, which includes a heavily sculpted front fascia, bigger side sills, two howitzer-sized exhaust pipes, and a massive rear wing, there's the F1-inspired KERS system. Exactly what that will be is up in the air; the F1 system is complex and expensive. While Infiniti says they want to engineer a road-going solution that's as similar as possible to the F1 KERS system, it's likely it'll be watered down a bit for production. View 12 Photos All in all, the 3.0-liter, twin-turbo V6 and the KERS system should combine to produce about 500 horsepower. That's all well and good, if it makes it out of concept car purgatory. Remember the Q50 Eau Rouge, the last Infiniti that got car enthusiast's undivided attention? Well, it got canceled. We're not sure what the appeal of an F1 tie-in would be to American shoppers, so who knows if the Black S will emerge as a rest-of-world special, or at all. In any event, we should have more details around Geneva, so stay tuned. Image Credit: Live photos copyright 2017 Drew Phillips / Autoblog.com Geneva Motor Show Infiniti Coupe Concept Cars Performance Videos Original Video 2017 Geneva Motor Show infiniti q60