2008 Infiniti G37 Journey Coupe 2-door 3.7l on 2040-cars

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Eau Rouge Lite: Infiniti Q50 gets 400-hp, twin-turbo V6

The Infiniti Q50 Eau Rouge is still (probably) dead. But as consolation prizes go, a new 400-horsepower, twin-turbocharged V6 isn't bad. The 3.0-liter biturbo will be offered in two different states of tune. Enthusiasts will flock towards the aforementioned 400-hp model, but the first VR series engine will also be sold in a 300-hp version, as well. Regardless of output, both engines have a very broad torque curve, ranging from 1,600 to 5,200 rpm with either 350 or 295 pound-feet. A Mercedes-sourced, 2.0-liter, turbocharged four-cylinder will serve as the Q50's new base engine, matching the CLA250's 208 hp and 258 lb-ft of torque. The hybrid powered Q50 soldiers on, as do a line of standard seven-speed automatic transmissions. The naturally aspirated 3.7-liter V6 appears to be gone. Another big enhancement for the updated Q50 is a revised version of the widely disliked Direct Adaptive Steer system. Infiniti says its engineers "optimized the control logic to improve feedback from the road" – a huge area of complaint with the current steer-by-wire system. The Q50's new engine lineup will be showrooms later this winter. Read on for the official press release from Infiniti, and stay tuned for more from the brand – including the new Q60 Coupe – at the upcoming Detroit Auto Show. Related Video: Infiniti Announces New 3.0-liter V6 Twin-Turbo Engine – the Most Advanced V6 Ever Offered by Infiniti • New VR-series engine becomes the lightest, most powerful, cleanest and most fuel-efficient V6 engine that Infiniti has ever offered• Two power outputs available: 400 or 300 horsepower• Series of technical innovations enhance drivability and performance• Compact layout features new integrated exhaust manifold• The 3.0-liter V6 twin-turbo engine family will first be available in the 2016 Infiniti Q50 sports sedan NASHVILLE (Dec. 15, 2015) – Infiniti's new compact, lightweight 3.0-liter V6 twin-turbo engine is the most advanced V6 engine that the brand has ever offered, striking an ideal balance between drivability, efficiency, and performance. The 3.0-liter V6 twin-turbo is an all-new engine from the new and exclusive VR- series powertrain family, born out of the brand's longstanding heritage of V6 powertrain production. The new engine has been engineered to empower the driver and offer increased power and torque and higher levels of efficiency than any comparable predecessors from the company.

2022 Infiniti QX80 Interior Review | Refreshed, but still behind

You might assume the 2022 Infiniti QX80’s interior is filled with outdated technology from when it launched here about 10 years ago, but thatÂ’s not entirely true. You see, despite the rest of the car carrying over from the previous model year, the 2022 model year QX80 enjoys a refreshed interior. While this interior is updated, thereÂ’s no need to get overly excited. Nissan put the Armada through a mid-cycle refresh last year, and the QX80 essentially cribs all of its new bits directly from the Nissan. WeÂ’ve already tested the Armada, so we had an idea about what to expect when the refreshed QX80 landed at our doorstep. Thankfully, for InfinitiÂ’s sake, the ArmadaÂ’s new interior is nice enough that it's largely acceptable in the more luxurious QX80. It features a new, high-res touchscreen, flashy plastics, a simple layout and vital tech like a wireless phone charger, USB-C port and wireless Apple CarPlay — unfortunately, Android Auto remains a wired-only affair. The new look of this tall and vast center stack doesnÂ’t jive perfectly with the QX80Â’s flowy, rounded interior design, but thatÂ’s what you get when part of the interior is updated and the rest is left to carryover. Straight, strong lines dominate the center stack, complemented by rectangular vents. Meanwhile, rounded wood trim flows out of this brutalist center stack in a jarring manner that makes the interior look like two different designers worked on it separately, then had their work combined.  Functionally, the new parts of the interior are just fine. The new single touchscreen and its supporting user interface is a welcome update over the old dual-screen infotainment system that's still found in other Infinitis (it had only just received that system for 2020). Its large, width-oriented and mounted higher for easy viewing, plus the presence of supporting physical knobs and buttons make vital controls easy to use and adjust. The odd storage compartment in the dash houses the wireless phone charger, and the 12V outlet is hidden in there alongside it. We enjoyed the presence of a wireless phone charger, but it didnÂ’t charge our phones quickly, and the phoneÂ’s movement on the mat would sometimes cause it to stop charging altogether. Surprisingly, the QX80 is fitted with a camera rearview mirror, which was a nice surprise to see.

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.