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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.

Suspects in Ghosn's Japanese escape stand trial in Turkey

ISTANBUL - Seven suspects went on trial in Turkey on Friday over their alleged involvement in former Nissan boss Carlos Ghosn's dramatic escape from Japan to Lebanon via Istanbul at the end of last year. Ghosn, once a titan of the global auto industry, had been arrested in Japan in late 2018 and charged with underreporting his salary and using company funds for personal purposes, charges he denies. The ousted chairman of the alliance of Renault, Nissan Motor Co and Mitsubishi Motors Corp had been awaiting his trial under house arrest in Japan when he made a dramatic escape in December to Beirut, his childhood home. An executive from Turkish private jet operator MNG Jet and four pilots were detained in early January soon after Ghosn's escape and charged with migrant smuggling, a sentence carrying a maximum sentence of eight years in jail. They appeared in white protective overalls, masks and gloves as a measure against the coronavirus, as the court in Istanbul began hearing their defence. Two flight attendants, charged with failing to report a crime - a charge carrying a sentence of up to one year - were also there. The first defendant to speak was a pilot on the Osaka-Istanbul flight, Noyan Pasin, who denied the charge. Prosecutors, in their indictment, had said MNG Jet operations manager Okan Kosemen - who is one of the seven on trial - knew before the Osaka flight that Ghosn would be on board and would transfer to Beirut. Kosemen, who also pleaded not guilty, said in court on Friday he was only told via phone about Ghosn's presence mid-flight from Osaka and cooperated under duress. The prosecution said Kosemen used WhatsApp to communicate with pilots before, during and after the Osaka-Istanbul flight, using terms like "luggage" and "consignment" to refer to Ghosn. The five other suspects also deny the charges, according to the indictment. SAGA SHAKES AUTO WORLD According to the indictment, Kosemen told prosecutors a price of $175,000 was agreed for the flight with a Lebanese broker and paid into MNG Jet's bank account. At the time of the incident, MNG Jet said Kosemen acted without the knowledge of the company and it had filed a criminal complaint for the illegal use of its aircraft. Japan has formally asked the United States to extradite two Americans - a former Green Beret and his son - who also stand accused of helping Ghosn flee Japan. They were arrested in Massachusetts in May.

PickupTrucks.com's latest test results in a familiar winner [w/video]

PickupTrucks.com has gone and thrown the latest batch of half-ton pickups into a cage match to see who would come out on top. The site put the 2014 Chevrolet Silverado 1500, GMC Sierra 1500, 2013 Ford F-150, Ram 1500, Toyota Tundra and Nissan Titan through a battery of tests. Those included 0-60 miles per hour acceleration, 60-0 mph deceleration, fuel economy, a hill climb, and payload and towing. They even threw the rigs on an autocross course to evaluate overall handling. Each truck was given points based on how it scored in each evaluation.
Who came out on top? Somewhat surprisingly, the 2013 Ford F-150 walked away with the gold, though fewer than 50 points separated first and fourth place. Head over to PickupTrucks.com to read the full evaluation and the final results. You may be shocked to see exactly where some of the segment's newest additions placed. You can also watch a video on the test below.