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Autoblog Podcast #362

Episode #362 of the Autoblog podcast is here, and this week, Dan Roth and Chris Paukert cover the year-end news, including the surprise resignation of Hyundai Motor North America CEO John Krafcik, strong early sales for the 2014 Jeep Cherokee, and 2015 Ford F-150 rumors ahead of its expected Detroit Auto Show debut. Dan also had a chance to look back at 2013 and ahead to 2014 with Autoline's John McElroy. We start with what's in the garage and finish up with some of your questions, and for those of you who hung with us live on our UStream channel, thanks for taking the time. Check out the new rundown below with times for topics, and you can follow along after the jump with our Q&A. Thanks for listening!
Autoblog Podcast #362:
Topics:

Hyundai Elantra Sport likely to get 201 hp, optional manual

The South Korean market often gives us a preview of what's coming soon from Hyundai and Kia in the US, usually with only the model name differing. That's what we thought when we saw the new Avante Sport being shown there, and Hyundai Motor America spokesman Jim Trainor confirms that it's basically what we should expect from the upcoming Elantra Sport. Hyundai previously confirmed the quicker sedan will arrive in the US by the end of the year. The Avante Sport uses the Veloster Turbo's 1.6-liter turbocharged four-cylinder, making the same 201 horsepower and 195 pound-feet of torque as it does in the funky hatch-coupe. Expect a choice between a seven-speed dual-clutch gearbox and a six-speed manual to go with it. The sporty compact upgrades to a multi-link rear suspension, replacing the standard Elantra/Avante torsion-beam setup. South Korean customers can choose an optional Extreme package that includes upgraded stabilizer bars, different springs and shocks, and a rear spoiler. We're hoping the suspension upgrades will be standard on the Elantra Sport. Hyundai made some subtle visual tweaks to signal the Sport model's extra performance. Lower side sills, larger openings in the front fascia, and a rear diffuser with dual exhaust tips poking out get the speedy message across. Inside, the front seats get larger bolsters and there's a unique flat-bottom steering wheel. Carbon-fiber-esque trim completes the sporty look. Currently, the only Elantra available in the US uses a 2.0-liter four-cylinder running on the Atkinson cycle that makes 147 hp and 132 lb-ft of torque. An Eco trim will join the lineup this spring with a turbocharged 1.4-liter four-cylinder and seven-speed dual-clutch gearbox. With the Sport, Hyundai will have a family of models to appeal to a large portion of buyers in the segment. Related Video:

Hyundai CVVD engine brings another dimension to valve timing

A new technology from Hyundai Motor Group places another marker on the march to more efficient internal combustion engines. Called Continuously Variable Valve Duration, the innovation permits two options for how long the intake valves remain open during the combustion cycle. The feature adds a third take on valve chicanery, atop variable valve timing that changes when valves open, and variable valve lift that changes how far valves open. Hyundai says the feature returns a 4% improvement in performance, a 5% increase in fuel economy, and lowers emissions by 12%. Hyundai applied for two patents on the valvetrain process in South Korea in 2011 and again in 2015. The altered valve duration in this latest iteration is made possible by two movable arms inside the camshaft. Each arm is anchored at its base to a pin at the center of the camshaft, while the end of each arm extends toward the edge of the camshaft. Changing the position of the pin in the center of the camshaft changes the angle of the arms relative to one another, which moves the camshaft along its mounting rod. Voila, a new intake cam profile that either lengthens or shortens valve overlap.   During low-speed spells at low load, CVVD opens the intake valve from the middle to the end of compression stroke. The weaker detonation isn't a factor at low load, and the reduced friction during compression improves fuel economy. During heavy engine loads, the intake valve closes at the beginning of the compression stroke to maximize the amount of air mixed for detonation, boosting torque. Four additional features enhance the benefits of CVVD. A more powerful direct injection system increases fuel spray pressure from 250 bar to 350 bar. Hyundai doesn't go into details on its Integrated Thermal Management System, but says the ITMS "quickly heats or cools the engine to the optimal temperature." Low-friction components lower overall engine friction by 34 percent. And a low-pressure exhaust gas recirculation layout diverts low-pressure exhaust gas from the traditional EGR route to the turbocharger compressor under high load for better fuel efficiency.   The first engine to boast the new tech is the Smartstream G1.6 T-GDi four-cylinder, which produces 180 horsepower and 195 pound-feet of torque. It will appear in the 2020 Hyundai Sonata Turbo going on sale in South Korea later this year.