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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.

2014 Nissan Leaf price climbs $180 to $28,980*, Ghosn predicts sales doubling

A year ago, Nissan changed the fortunes of its all-electric Leaf in the US market by lopping a serious $6,400 off of the price. The entry-level 2012 Leaf started at $35,200, and the 2013 Leaf S instantly became a much better deal since it started at $28,800. For 2014, the trend is in the opposite direction, but only just. The 2014 Leaf S will start at $28,980. The other two trim levels will start at $32,000 for the SV and $35,020 for the SL. Oh well, we can't get a $6k drop every year, can we? What do you get for your extra $180? Well, as described in July, the 2014 model has the rear camera as standard and there is an available voice command navigation system and text message reader. We've got the full specification breakdown and pricing press release below. We doubt the small extra cost will do much to dent the Leaf's current sales upswing. December 2013 was the EV's best sales month ever, and a grand total of 22,610 units in 2013. That's more EVs than Nissan sold in 2011 and 2012 put together. Nissan CEO Carlos Ghosn said earlier today that he thinks US Leaf sales will double, but didn't say when. "We are now on a trend of 3,000 cars a month in the US, which is about 36,000 cars" a year, Ghosn told Automotive News. "The next step is moving up to 4,000 a month, which is going to be approximately 50,000." The prices listed above do not include Nissan's $850 destination fee, but all Leaf EVs can qualify for the $7,500 federal income tax credit, as well as state and local incentives in some areas. NISSAN ANNOUNCES U.S. PRICING FOR 2014 LEAF™ NASHVILLE, Tenn. (January 8, 2014) – Nissan today announced U.S. pricing for the 2014 Nissan LEAF™, which is on sale now at Nissan dealers nationwide. The 100 percent electric LEAF continues to offer outstanding value, with prices comparable to similar gasoline-powered vehicles after applicable tax credits. Sales of the zero emission LEAF in the U.S. and around the world set all-time records in 2013. The 2014 Nissan LEAF is available in three trim levels: LEAF S, SV and SL, along with option packages offering advanced systems such as Around View® Monitor and 7-speaker Bose® audio. Enhancements for 2014 include the addition of the RearView Monitor as standard equipment on all models (previously part of the Charge Package) and one new exterior color – Gun Metallic (seven total available colors).

Infiniti moves to trademark Eau Rouge

With Formula One taking to Belgium and the famous Spa-Francorchamps circuit this weekend - boasting a reputation as one of the most beautiful courses on the calendar - all eyes will likely be on the tricky Eau Rouge corner, which challenges drivers' high-speed car control over a rolling, tree-lined hill. Infiniti played on the turn's iconic legacy for its ruby red Q50 Eau Rouge concept, and now the brand hopes to trademark the famous racing name so it can keep using it for a potential production version.
In January, the company filed for a trademark on Eau Rouge for "Automobiles and their structural parts; Fuel cell automobiles and their structural parts; Concept cars" with the US Patent and Trademark Office. According to Bloomberg, the application is still under consideration and not yet a guarantee. It's possible that the track could attempt to block the automaker from earning rights to the name. Alternatively, a trademark lawyer tells Bloomberg that the two of them could also strike a deal where Infiniti would pay a small amount for each car sold bearing the title, which could give Spa a bit of extra money in the bank.
Regardless of the name, a vehicle like the Eau Rouge is something enthusiasts have been wanting for years. It combines a modified, 560-horsepower version of the engine from the Nissan GT-R into a four-door sedan covered in aggressive, carbon fiber aerodynamic parts.