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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

2014 Nissan 370Z Nismo

Michigan is one of those places where we can sub-divide the seasons into good and bad portions, with each producing a noticeable shift. The week prior to my time in the 2014 Nissan 370Z Nismo, it was 65 to 70 degrees and sunny, all week long. Anyone care to guess what the following week was like?
Windy, cold and damp weather typified my week in the Z, with temps hovering around 55 degrees and several days of showers. Yes, I got the first week of the bad part of fall. The Z was hardly happy during its time with me, but we both persevered, and I made a point of sprinting out to the garage anytime the ground seemed remotely dry enough to test this striking two-seater. That enthusiasm waned quickly, though, as the week wore on.
By all accounts, the Z is a car that I should like. It's an uncompromising sports car, but as I discovered during my travels, sometimes a little compromise is welcome, and living with a car like the Z - particularly the angrier, Nismo-tuned model - quickly becomes a case of too much of a good thing.

2016 Nissan Titan coming to 2015 Detroit Auto Show

The Titan has continued to sit in a corner of Nissan's front yard, taken out on occasion but largely unloved, the same way you see a project truck in a neighbor's driveway that makes you wonder, "Are they ever going to do anything with that?" The fullsize pickup made the news about six months ago when reports surfaced that the next generation would offer a Cummins diesel engine that had originally been meant for Ram, then it returned to the shadows.
According to a report from Edmunds, the Titan will return to the spotlight in about a year, with the unveil of the 2016 model planned for next year's Detroit Auto Show. Along with that oil-burner, it will bring a gasoline V6 engine, a complete redesign and a regular cab configuration to finally give it a fighting chance against the thick end of the light-duty truck market. Toyota gets pressed for the molasses-like sales of the Tundra, but that fullsize entrant sold 7,890 units in January and 10,988 in December 2013. Nissan sold 887 Titans in January, 1,284 in December 2013 and broke 2,400 US sales in a single month just once in four years. (The segment-leading Ford F-150, for reference, sold 46,536 units in January.)
An entry-level model and a regular cab option should give the Titan a welcome and overdue sales boost. Better power numbers and fuel economy for the V8 would probably go a long way, too. We expect to start getting glimpses of its future later this year.