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2016 Infiniti Q50 gets 2.0L turbo four

After adding a US-built, 2.0-liter, turbocharged four-cylinder to the European and Chinese-market Q50, Infiniti will finally add this engine to the US-spec car. Official details are exceedingly scarce, with the company only saying the 2.0-liter will hit dealers this winter and that additional info will be made available this fall. We can, however, make a few safe assumptions based on the engine's output in Europe. According to our previous story on the Decherd, TN-built engine, the turbocharged mill will offer up 211 horsepower and 236 pound-feet of torque. That plants it squarely between the outputs of the 2.0-liter turbo in the BMW 320i and 328i, though it's down on power compared to the engines offered in the Cadillac ATS, Mercedes-Benz C-Class, and upcoming Lexus IS 200t. There's also a 100-plus-horsepower gap between the Q50's two gas-only engines. Considering all of these things, not to mention Infiniti's reluctance to reveal official specs, it seems safe to wager that the Japanese brand will find a way to squeeze more power out of the current 2.0-liter turbo. That'd allow the Q50 to better challenge the competition's entry-level offerings while bringing the starting price point down from the roughly $38,000 it sits at now. That's grain-of-salt conjecture on our part, though, so caveat emptor. Expect to hear more on the Q50's new engine later this year. Until then, scroll down for the official press release cover all of Infiniti's 2016 updates. INFINITI – WHAT'S NEW FOR 2016 For 2016, the Infiniti lineup in the United States expands once again, literally, with a new longer, roomier Infiniti QX50 premium crossover. With its wheelbase extended 3.2-inches, the 2016 QX50 offers greatly increased rear passenger room, as well as additional cargo space. It also features new exterior styling. There are additional changes in store for 2016, starting with the addition of a new 2.0-liter turbo 4-cylinder engine for the Infiniti Q50 sports sedan available in the winter of 2016. Other Infiniti Q50 enhancements will be announced at the North American International Auto Show in January. In addition, revisions to the Infiniti QX60 luxury crossover will be announced at that time. The Infiniti QX80 full-size SUV keeps it fresh for 2016 with a new Signature Edition, which includes Driver Assistance and Split Bench packages, Saddle Tan high-contrast interior, bodyside moldings and chrome mirror caps. The QX80 Special Edition is limited to just 1,000 units.

Infiniti JX35 QX60 Hybrid confirmed for New York debut

The next Q-ified Infiniti will be making its debut at the New York Auto Show later this month, the QX60 - the crossover formerly known as JX35. And while there aren't many changes to the crossover in terms of design or function, the big news is that Infiniti will be revealing a production hybrid powertrain option for its seven-passenger luxury/utility vehicle.
The QX60 Hybrid uses the same powetrain found in Infiniti's M35h gasoline-electric sedan, which couples a 2.5-liter supercharged four-cylinder engine with a 15-kilowatt electric motor, running to the wheels via continuously variable transmission. Both front- and all-wheel-drive versions of the QX60 Hybrid will be available, and Infiniti says that the more efficient CUV should be good for around 26 miles per gallon combined - an improvement of five mpg over the current JX35 with its 3.5-liter naturally aspirated V6. And because the compact lithium-ion battery will be housed underneath the third row seat, we're told that the hybrid model will still have the same passenger and cargo capacity of the non-hybrid crossover.
This will be the first three-row hybrid CUV offered in the US market, and wrapping it up in a luxury package makes a lot of sense to us, since it could be a good way of cajoling customers into absorbing the extra cost of the more expensive powertrain. (Keyword in that sentence: CUV. After all, the Cadillac Escalade is still currently available as a two-mode hybrid for the 2013 model year.) Infiniti has not released official pricing figures, but says that the hybrid model will represent a roughly $3,000 premium over the standard QX60.

Infiniti's new VC-T changes the rules of small turbocharged engines

The upcoming Infiniti QX50 crossover does not get our pulse racing, no matter how shapely the QX Sport Inspiration concept that previews it may be. No midsize SUV does, to be fair. But it has something special under the hood – the world's first production variable-compression-ratio engine. That means the QX50's 2.0-liter turbo four, which makes 268 horsepower and 288 pound-feet of torque, will have up to 27 percent better fuel economy. Here's how it works. The trend of moving to smaller, turbocharged engines carries with it one big falsehood. Under low load when the turbo isn't needed, these engines are less efficient than an equivalent engine without a turbo because of the low compression ratio the turbo requires. That is, if you never need the extra power, you're wasting fuel. Turbocharged (and supercharged) engines use a lower compression ratio to prevent detonation. When you force extra air in a cylinder and mix it with fuel, it's more likely to prematurely go boom. Lowering the compression ratio prevents this problem, but it's less efficient. Infiniti's VC-T promises the best of both worlds, with a compression ratio that ranges from 8.0:1 for high-power turbo needs to a 14.0:1 ratio for fuel-sipping efficiency. At its heart the VC-T engine is a simple idea, but it's complicated to explain. Consider yourself warned. The photo below from Infiniti serves as a good visual overview. For the truly nerdy, this patent application covers the mechanical concept. Instead of having the pistons connected to the crankshaft, Infiniti's engine has a pivot arm with a connection on each end. One end connects to the piston, the other connects to a second lower shaft, which is controlled by an actuator arm. At any given time the engine's pistons move up and down according to the lobes on the crankshaft. But the actuator arm can change the angle of the pivot arm up and down. That is, the pistons still move in the same motion with the same stroke, but phase the entire stroke up or down. Move the pivot up and there's less room at the top, which means a higher compression ratio. Move the pivot down and the compression ratio goes down, too. As an added bonus, the lower shaft eliminates the need for counter-rotating balance shafts. Infiniti says this system works constantly and can vary the compression ratio to any number between 8:1 and 14:1. It also uses electronic variable valve timing on the intake valves to switch into Atkinson-cycle combustion for greater efficiency.