2004 Hyundai Tiburon Gt Coupe 2-door 2.7l on 2040-cars

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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.

IIHS: Drivers safer than passengers in frontal crash test

The Insurance Institute for Highway Safety introduced a small overlap frontal crash test in 2012 that replicates what happens when the front corner of a car impacts another object. In the test, vehicles travel at a speed of 40 mph toward a five-foot-tall barrier with 25 percent of the total width of the car striking the barrier on the driver side. One would assume that vehicles with good small overlap front ratings would protect the driver and the passenger equally. But a recent study from the IIHS proves that passengers aren't as protected as drivers. The IIHS conducted the test on seven small SUVs with good driver-side small overlap ratings and only one of the vehicles, the 2016 Hyundai Tucson, performed well enough to be given a good rating. The other SUVs performance ranged from poor to acceptable. After reviewing the results of the test, the IIHS is deliberating whether it should institute a passenger-side rating as part of its Top Safety Pick criteria. "This is an important aspect of occupant protection that needs more attention," states Becky Mueller, lead author of the study and an IIHS senior research engineer. "More than 1,600 right-front passengers died in frontal crashes in 2014." Since the small overlap front test was introduced, 13 automakers have made structural changes to 97 vehicles with roughly three-quarters earning a good rating after the adjustments. The IIHS' test for frontal ratings is completed with a dummy in the driver's seat and with a barrier overlapping the driver's side. Which makes sense, as passengers aren't always riding in a vehicle. "It's not surprising that automakers would focus their initial efforts to improve small overlap protection on the side of the vehicle that we conduct the tests on," states David Zuby, IIHS executive vice president and chief research officer. "In fact, we encouraged them to do that in the short term if it mean they could quickly make driver-side improvements to more vehicles. As time goes by, though, we would hope they ensure similar levels of protection on both sides." As the IIHS' test revealed, there's a massive difference in safety between the two front seats. Increase passenger safety, according to Mueller, would require automakers to strengthen the occupant compartment by using a different type of material or by making it thicker.

2018 Hyundai Kona pricing announced: Compact SUV starts at $20,385

We've already had a brief first drive in the 2018 Hyundai Kona, and although associate editor Reese Counts didn't get a lot of time behind the wheel, he walked away generally impressed. The surprisingly sharp driving dynamics and interior quality were especially noteworthy. Here's everything we know about the U.S.-spec Kona. We still need a far more thorough drive of Hyundai's new sub-compact SUV, but at least we know how much one will set you back. Pricing starts at $20,385, including $885 destination, for the base front-wheel-drive SE trim level. That trim, along with the SEL, come with a 2.0-liter naturally aspirated four-cylinder engine and a six-speed automatic. The Limited and Ultimate get a 1.6-liter turbocharged four-cylinder and a seven-speed dual-clutch automated manual. Pricing for the entire lineup is below. The 2018 Hyundai Kona goes on sale in March. All prices include $885 destination charge. SE FWD: $20,385 SEL FWD: $22,035 SEL FWD w/ Contrast Roof: $22,185 Limited FWD: $25,585 Ultimate FWD: $29,585 Adding all-wheel drive adds $1,300 to each price. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Featured Gallery 2018 Hyundai Kona - U.S. Spec View 34 Photos Hyundai SUV hyundai kona