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Don't drive some 2001-03 Hondas and Acuras with Takata airbags, feds say

The National Highway Traffic Safety Administration (NHTSA) on Thursday warned owners of certain 2001-03 Honda and Acura models to stop driving their vehicles immediately due greater risks posed by their defective Takata airbags. NHTSA says the airbag inflators have up to a 50-percent chance of exploding in an accident. Dangerous ruptures are more likely to occur in vehicles that spend a significant amount of time in high humidity. About 313,000 vehicles are affected. They are: The 2001 to 2002 Honda Accord and Civic, the 2002 to 2003 Acura TL, 2002 Honda CR-V and Odyssey, 2003 Acura CL, and 2003 Honda Pilot. All of these vehicles were recalled from 2008 to 2011 for being equipped with Takata inflators, but the feds are urging immediate action due to the elevated risk. The inflators in this group of cars have a manufacturing defect that "greatly increases the potential for dangerous rupture when a crash causes the airbag to deploy," NHTSA said. "The air bag inflators in this particular group of vehicles pose a grave danger to drivers and passengers that must be fixed right away," NHTSA Administrator Mark Rosekind said in a statement. Related video: News Source: NHTSA, Automotive News Auto News Honda Minivan/Van SUV Sedan airbag

Honda patents engine with different cylinder displacements

A basic rule of engine design states that the displacement of a cylinder is equal to the engine's total displacement divided by its cylinder count. Honda, according to a recently surfaced Japanese patent, is looking to break that rule with an engine containing cylinders of different sizes. We've done our best to translate it from patent-ese. The idea is that different-sized combustion chambers give more flexibility when any combination of cylinders are deactivated, or rested. Because the different numbers can be combined in various ways, it provides more and smaller increments than would an engine with equal-displacement cylinders. Take a 2.0-liter four-cylinder, for example. Following the golden displacement rule, each of the four cylinders has a volume of 500 cc, giving displacement increments of 500 cc when any cylinder is deactivated. But suppose instead that the four cylinders displace 300, 425, 600, and 675 cc, respectively. This would give the engine 15 available displacements instead of just four, and the spacing between each option would be far less than 500cc. As a result, those different virtual displacements would provide more adjustment between power and efficiency than a cylinder-deactivation system can on a conventional engine. Honda's patent describes cylinders with equal bore size, with the displacement from cylinder to cylinder varying based on the crank throw radius – the longer the throw, the longer the stroke and the larger the displacement of that particular combustion chamber. The patent describes how the cylinder sizes would need to be arranged to spread the load on the crankshaft and presumably limit vibration that would be introduced by the different pulse magnitudes. If we're interpreting things correctly, the largest cylinder (the one with the longest crank throw radius) sits in the middle of the bank with the smaller ones alternating on either side as they decrease in displacement. This concept is described for multi-cylinder inline and V-type engines of various sizes. The patent was filed in March of 2014 and published in January of this year. Whether or not this arrangement will reach production is of course unknown, but the advantages in terms of both efficiency and power seem promising. Related Video: News Source: Japan Patent Office via Auto Guide Green Honda Fuel Efficiency Technology patent

The Honda CR-Z is on the way out, at least in Japan

The poor CR-Z, misbegotten and subsequently ignored by both customers and critics. Sales have been a trickle for years, and despite a few half-hearted attempts to kick-start interest it's clear the CR-Z lacks the goods. We've been thinking about its imminent demise for years, and it's already dead in Europe and Australia. Now, the CR-Z's lackluster run is ending in Japan. Inexplicably, that'll make the US one of the last bastions of CR-Z sales in the world. The 1.5-liter engine and electric motor make a combined 130 hp and 140 lb-ft of torque in manual-transmission trim. Yes, a manual transmission hybrid. Quite a unicorn, but don't get too excited. It won't blow your socks off, as we found out in our first drive. And the CVT model, with less power, is predictably less thrilling. Like most final edition packages, the Japan-only CR-Z Final Label gets cosmetic changes, like special edition badging, unique alloy wheels, "Final Label" logos embroidered on the seats, and equipment from the higher trim levels. The attention makes sense in Japan, where collectible special edition cars are highly sought after. It seems unlikely that Honda will bother with anything more exciting than a fire-sale promotion in the US, although we've asked the company what its plans for CR-Z in North America are and will report on what they tell us. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. News Source: Honda Japan Green Honda Coupe Hatchback Hybrid honda crz