2008 Infiniti G35x Awd Nav Sedan Salvage Repairable Project Flood Water G35 X on 2040-cars

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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.

Junkyard Gem: 1999 Infiniti G20t

When Honda began making zooted-up Civics with big engines and different bodywork in the late 1980s, selling them as Acura Integras in North America and raking in many dollars, Nissan took note. For the 1990 model year and the launch of the Infiniti brand, the luxed-out version of the Euro-market Nissan Primera sedan got Infiniti G20 badging and went on sale over here. After a two-year hiatus in 1997 and 1998, the all-new G20 made its debut for the 1999 model year, and that's what we've got here: a fully equipped Touring version with 5-speed manual transmission, spotted in a Denver boneyard. The G20 Touring got leather seats, a limited-slip differential, and a racy-looking spoiler. Sure looks speedy, though the G20t was less about performance than it was about comfort. G20t buyers got these hep-looking 16" wheels. With just 140 horses from its SR20DE engine (which also went into the quicker Sentra-based machinery of 1999), the G20t wouldn't be beating many of its competitors in drag races.  With the 5-speed manual transmission, though, the stock G20t became tolerably fun. Plenty of G20 owners added more power and threw connecting rods enjoyed sport-compact domination during the early 20th century. This one seems pretty tired, but hints of the original snazziness of its interior remain. The good old packing-tape taillight repair. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Born in Japan, went to finishing school in Europe. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. In the UK, a man who felt compelled to play a driving game (equipped with a disturbingly phallic joystick controller) discovers the Primera. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. This ad positions the Primera as the car of choice for bungling British bank robbers. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. In Japan, the TV commercials touted the new Primera's advanced suspension design. Featured Gallery Junked 1999 Infiniti G20t View 17 Photos Auto News Infiniti Automotive History Sedan Junkyard Gems

2015 Infiniti Q70L

A quick look at a scatter plot that charts rear legroom against luxury sedan MSRPs reveals a dearth of spacious bargains - few, if any, luxury sedans offer exceptionally spacious rear accommodations at a relatively low starting price. To fill the vacuum, Infiniti has made its Q70 available in a Q70L variant - in English, long wheelbase - for 2015.
The artist formerly known as the Infiniti M has been available in stretched-out form in the Chinese market for two years, and the US introduction is accompanied by several updates that include slightly reworked styling cues, and refinements to the drivetrain and chassis. The Q70L's wheelbase extends 5.9 inches (with a commensurate expansion of knee room), while overall length increases to 202 inches, a 7.3-inch bump. Powertrain options include a 3.7-liter V6 which produces 330 horsepower and 270 pound-feet of torque (starting at $51,350), or a 5.6-liter V8 that yields 420 hp and 417 lb-ft (and climbs to $64,550). The long-wheelbase treatment adds $1,500 to Q70 MSRPs. Not surprisingly, the Hybrid version is not available with the L treatment.
Up to three Q70L rear passengers are treated to reading lamps, a 12-volt power outlet, rear door close assist, and available heated seats. Unlike its Far Eastern counterpart (and competitors like the $61,500 Hyundai Equus), the US-spec Q70L's rear seats don't recline. Bummer.