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A look inside Infiniti's variable-compression engine

We're sympathetic to anyone who had trouble understanding what's going on with Infiniti's new variable-compression engine. While we got a full tech briefing on the novel VC-Turbo back in August, the visual aids were lacking. The cutaway engine Infiniti brought to the Paris show fixes all of that. You can thank the little green and pink lines on the cutaway for making the whole idea a little more clear. Click through the gallery to see two lines – one green and one pink – that represent the different strokes allowing for different compression ratios. Remember, the compression ratio is the amount of volume in the cylinder on intake compared to the amount at the end of the compression stroke. Leave more room at the end and you lower that ratio. The length of the stroke doesn't change with this system, but where it sits along the cylinder does. Hence those two lines. The variable compression ratio allows this new turbocharged engine to maximize fuel economy when the turbo isn't needed by raising the compression ratio. It will see its first use in the next Infiniti QX50 crossover, previewed by the QX Sport Inspiration concept that's also on display in Paris, and has performance targets of 268 horsepower and 288 pound-feet of torque. After, it will migrate to other Infiniti and Nissan vehicles, with transverse front-drive-based applications first in line. Eventually, it's likely to completely replace Nissan's corporate 3.5-liter V6. We'll be poking around the engine a little more in Paris today to try and get some more info. For now, enjoy those cutaway images and those friendly little lines. Featured Gallery Infiniti VC-Turbo engine cutaway View 14 Photos Paris Motor Show Infiniti Nissan Technology Emerging Technologies engine 2016 paris motor show

Recharge Wrap-up: Zero to debut 2015 lineup, Nissan extends New Mobility carsharing in Japan

Nissan is extending its carsharing service in Yokohama, Japan for another year. The service, called "Choimobi Yokohama," will use data gathered during its first year to make improvements going forward, including new payment options. The one-way service provides users zero-emission driving with Nissan's New Mobility Concept EVs. Nissan will scale back the number of vehicles from 70 to 50 for the second year. As of September 15, membership was at 10,651 users. Read more in the press release, below. In other Nissan news, the company has a new ad showcasing the benefit of the Leaf's available torque. The video depicts one of the fun parts of driving an EV, which is having 100 percent of the torque available from zero rpm, and shows a Leaf driver pulls away quickly from a stoplight in an impromptu drag race. The ad finishes by reminding Leaf drivers to "use your torque wisely." Watch it below. Analysts predict a booming EV charging infrastructure in South Korea. Government subsidies will encourage this rapid expansion, as the Ministry of Environment South Korea has a plan to fully fund level 2 chargers, plus the installation fee for DC chargers. The availability and shorter charging time of these stations are likely to help convince people to adopt EVs, as well. Analysts at Frost & Sullivan predict 90,000 charging stations around the country by 2020, as you can see in the press release below. Zero Motorcycles is set to debut its 2015 line of electric motorcycles. They will first be unveiled at Intermot in Cologne, Germany beginning September 30. The new all-electric models will then see their US launch at AIMExpo in Orlando, Florida beginning October 16. Zero Motorcycles VP of Global Marketing Scot Harden says, "We are confident that the new line will exceed expectations and look forward to seeing how the motorcycle world responds." Read more in the press release, below. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Nissan Extends its Groundbreaking 'Choimobi Yokohama' Car Sharing Service for Another Year YOKOHAMA, Japan (September 19, 2014) - Nissan Motor Co., Ltd and the City of Yokohama revealed today that they will extend the one-year trial run of the first large-scale One-way Car Sharing Service in Japan, called "Choimobi Yokohama," for another year. The service, which kicked off on October 11, 2013, features Nissan's New Mobility Concept electric vehicles.

This tiny 1.5L engine from Nissan makes 400 horsepower

Back in 2012, Ford packed its tiny 1.0-liter EcoBoost three-cylinder in a carry-on suitcase, destined for use in the Fiesta here in the US. In June, Nissan will pack its tiny new three-cylinder engine in a 24 Hours of Le Mans racecar. Nissan's don't-call-me-DeltaWing ZEOD RC racecar will still be able to tackle a single lap under full electric power, but the rest of the time it will be powered by the new 1.5-liter turbocharged three-cylinder engine.
Holding the lightweight engine (at right) is Nismo president Shoichi Miyatani, and he's likely smiling because that 40-kilogram (88-pound) engine packs quite a punch with 400 horsepower and 280 pound-feet of torque. Nissan would like to take a moment to point out this engine's power-to-weight is better than the engines currently used in Formula One racecars. Scroll down for more information on this new race engine, which we'll see in action at Le Mans in June.