2010 Nissan 2.0 Sr on 2040-cars

Auto blog

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

Nissan 370Z Nismo freshening coming tomorrow

Nissan is set to bring a special to the Fairlady faithful at the annual ZDAYZ fest. Based on the sole teaser and the event it's being unveiled at, it's pretty clear that Nissan is going to be issuing some kind of update to the Nismo version of its 370Z.
What that update is, though, is unclear. We can see a few small visual tweaks, like the horizontal LED running lights and their associated vertical vent. The grille looks reformed as well. Beyond that, though, it looks like we're stuck waiting for the full details until tomorrow afternoon. Until then, take a look below for the world's shortest press release.

Next Nissan Sentra spied, test driver salutes

Nissan isn't keeping a secret that the Sentra is getting a significant refresh for the 2016 model year, but apparently one of the test drivers isn't so happy about a spy photographer getting an early peek. As you can see in several pictures in the above gallery, the guy flies the finger directly at the camera as it captures this camouflaged compact sedan testing around Metro Detroit. While the 2016 Sentra is supposed to be heavily restyled compared to the current model, Nissan is still remaining tight-lipped about exactly what that means. These shots provide some clear indications, though. Up front, the brand's V-shaped grille is fairly obvious even through the camo in several photos, and the headlights get an angular resculpting to match that style. With its honeycomb grille, the lower air dam looks a slightly sportier, too. The sides are left unaltered in these shots, but the rear gets another big dose of obfuscation. The update back there seems to draw from the newly refreshed Altima, especially with the more pointy taillights. While harder to tell for sure, the trunk and lower bumper also appear to have a more complex design. Overall, the latest model reportedly takes inspiration from the Pulsar in Europe. This revision comes even as Sentra sales remain strong. For the year so far through August, the model is up 8.9 percent with 140,074 units moved. However, the 2016 model has to stand up against the challenge of the all-new 2016 Honda Civic that's entering the market at around the same time, meaning the Sentra has its work cut out for it.