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Basic Continuously Variable Transmission explained with Legos

In recent years, the search for better fuel efficiency and smoother shifting has produced automatic transmissions with double-digit gears. Alternatively, the same quest has boosted the popularity and usage of a different type of automatic transmission without any fixed gears, the continuously variable transmission, or CVT. YouTuber Sariel's Lego Workshop recently took the time to build a CVT demonstration model out of Legos to help explain how they work. Sariel begins by showing the model's input and output shafts that are parallel to each other. Each shaft has a cone attached to it, and they are inversely placed so that the large part of one cone is next to the small part of the other cone. The two cones are connected using a rounded rubber band.  By shifting the rubber band up and down the cones, the machine changes the effective ratio between the cones. So, a 1:4 ratio can be smoothly transitioned to 4:1. No clutch is required to operate the mechanism, and it eliminates hitches or pauses between gear changes. CVTs are also advantageous over 9- or 10-speed automatics in that they are far less complex and weigh less.  To demonstrate how the CVT operates in a vehicle, Sariel used a joke about Top Gear. The original Top Gear is represented by a faster-moving car that has the rubber band around the large part of the cone on the input shaft. Top Gear without former hosts Richard Hammond, Jeremy Clarkson, and James May is represented by a slow-moving car with the rubber band around the large part of the cone on the output shaft.  For an even more detailed explanation of how CVTs work — albeit one that doesn't involve toys — you can click here. Technology Toys/Games Nissan Subaru

Subaru WRX S4 gets big power bump in Japan

A month after originally teasing it, Subaru is finally unveiling its WRX S4 model for Japan. It's a bit more than just a plush take on the sport sedan, because Subaru is fitting a more powerful version of the 2.0-liter, turbocharged boxer four-cylinder engine than we get on these shores.
The company says that S4 stands for "'Sports performance', 'Safety performance', 'Smart driving' and 'Sophisticated feel," and it certainly looks like this Rex ticks all of those boxes. The most surprising feature is the Japanese model's 2.0-liter turbo engine boasting 296 horsepower (221 kilowatts) and 295 pound-feet (400 Newton-meters) of torque in this application. That's quite a healthy upgrade over the 268 hp and 258 lb-ft that Americans get in the standard WRX, and it's even nipping at the heels of the 305 hp and 290 lb-ft from the STI with a 2.5-liter mill that we get over here.
While extra power is always welcome, enthusiasts might not be so thrilled that Subaru's Sport Lineartronic Continuously Variable Transmission is the sedan's only available gearbox. However, it offers a simulated eight-speed shifting mode when drivers notch the car into Sport# driving mode. Of course, the S4 also packs Subie's trademark all-wheel drive with Vehicle Dynamics Control and Active Torque Vectoring as standard.

Subaru confirms new Outback to debut in New York

Performance enthusiasts may think of the WRX and BRZ when the name Subaru comes to mind, but for many others, the brand is best associated with the Outback. The soft-road version of the Legacy (and the Impreza-based Outback Sport that preceded the XV Crosstrek) is a vital product for the Japanese automaker, which has now confirmed it's bringing the latest version to the New York Auto Show in just a couple of weeks from now. There's little to go on from the teaser image above (which you can click to enlarge) and the press release below, which says only that "The all-new Outback is Subaru's flagship crossover model which blends Car-like handling and SUV capability." And that much we knew already. It's safe to assume that, like previous versions of the Outback, the new model (which we recently spied undergoing testing) will be based closely on the latest Legacy, albeit upgraded with a higher ride height, lower body cladding and other off-roading enhancements. Watch this space for more. All-New Subaru "Outback" to Make World Debut at 2014 New York International Auto Show Tokyo, April 3, 2014 – Fuji Heavy Industries Ltd. (FHI), the maker of Subaru automobiles, today announced that the all-new "Outback" (US specifications model) will make its world debut at the 2014 New York International Auto Show (Press day: April 16 and 17; Open to the public from April 18 through 27, 2014). The Outback will be unveiled at the press briefing scheduled for 10:55 AM EST on April 17 at Subaru booth following a speech to be made by FHI President & CEO, Yasuyuki Yoshinaga. The all-new Outback is Subaru's flagship crossover model which blends Car-like handling and SUV capability. The special site opens today at 22:00 (Japan time) on the Subaru Global Site. http://www.subaru-global.com/2014ny.html The site will feature information updates relating to the New York International Auto Show including Subaru's press conference.