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2015 Chevy Volt gets larger battery, though range remains the same

The Chevrolet Volt isn't changing much for the 2015 model year. According to specifications uncovered by Inside EVs, though, the new Volt's battery does have a slightly larger capacity. According to the spec sheet, this doesn't translate to increased range. Real world driving, though, might tell a different story. The 2015 Volt's battery storage is slightly higher than the outgoing model's, up from 16.5 kilowatt-hours to 17.1 kWh. According to GM's manager of electrification technology communications, Kevin Kelly, speaking to Green Car Reports, the increased capacity is "a late change done in the cell... just another continuous improvement to surprise and delight our customers." The stated electric range, however, stays at 38 miles. Inside EVs followed up on its original report, and found that drivers could see some advantage to the battery tweak. When they spoke to Kelly, he told them, "As a result of this change, we would expect that some customers may see a slight improvement in overall EV range." It's worth noting that when battery capacity increased from 16 kWh to 16.5 kWh for the 2013 Volt, electric range increased by three miles to the current 38, while MPGe went from 94 to 98. The price of the 2015 Chevrolet Volt remains steady, at $34,995. The actual cost to the customer is considerably less with the $7,500 federal tax credit, as well as any local incentives.

Chevy's 6.6-liter Duramax is pretty much all new

To say there's a heated battle in heavy-duty pickups is an understatement, with Chevrolet, Ford, and Ram constantly trading blows of increased torque, horsepower, and towing capacity. The latest salvo is the revised, more powerful turbo diesel 6.6-liter Duramax V8 in the 2017 Chevy Silverado. It has 910 pound-feet of torque, an increase of 145, putting it nearly level with the Ford Super Duty. Here's a closer look at where those gains come from. How exactly did Chevrolet add all that torque plus 48 horsepower? The automaker essentially took a fine-tooth comb to the entire engine. Chevy says it changed 90 percent of the V8, and the cumulative effect of those small changes adds up to big increases. As you might guess, the turbocharger is updated. The larger unit features electric actuation of the variable nozzle turbine (VNT), and what Chevy calls a double axle cartridge mechanism that separates the VNT moving parts from the housing. That helps with heat performance as well, with a claim that the exhaust side of the turbo can run continuously up to 1,436 degrees Fahrenheit. Helping that cause are six exhaust gaskets made of Inconel - an nickel alloy that contains chromium and iron – and upgraded stainless steel for the exhaust manifold. Despite having the same cast iron cylinder block, albeit with some minor enhancements, the engine has new cylinder heads, pistons, piston pins, connecting rods, and crankshaft, which have all been upgraded to handle 20 percent higher cylinder pressures. Alongside the increase in pressure, Chevrolet also increased the cylinder head's structure with a honeycomb design. The pattern features high-strength aluminum with dual layer water jackets that not only improve strength, but also optimize water flow for better cooling. For 2017, the cylinder head also benefits from integrated plenum that aids the engine in getting more air under heavy loads. The cylinder head isn't the only component to get a minor update, as the pistons have a larger diameter pin for improved oil flow. The same detailed improvements has been bestowed to the humble connecting rods (second in our hearts only to the inanimate carbon rod). The new design has the bolts oriented roughly 45-degrees to the rod instead of parallel. The angle split design, as it's called allows for easier passage through the cylinder.

GM's labor deal with UAW union on verge of ratification

Nov 15 (Reuters) - General Motors' tentative labor deal with the United Auto Workers (UAW) union closed in on ratification as the votes were counted on Wednesday. Following the approval earlier in the day by more than 60% of union members at the Detroit automaker's large Arlington, Texas, assembly plant, additional votes in favor have the deal close to clinching majority approval. The number of union locals, most of which are smaller, still to report vote totals is not large. After several large assembly plants voted against the deal earlier on Wednesday, some media had reported the deal was heading toward failure. But Arlington's support, followed by strong voting in favor by smaller warehouse and parts facilities, has put the deal on the brink of approval. This would mark the first ratification of a deal, which runs through April 2028, with one of the Detroit Three automakers. Ford and Stellantis voting is still under way, and workers at both companies were favoring ratification by comfortable margins. The UAW's GM vote tracking site currently shows approval of the contract leading by a 54% to 46% margin with almost 32,000 workers having cast votes out of about 46,000 UAW-represented GM workers. The Arlington plant, with about 5,000 UAW members, has the most of any GM plant. Voting officially ends on Thursday at 4 p.m. EST, although most votes will be cast on Wednesday. The UAW went on strike for more than six weeks against the Detroit Three, seeking better wages, working conditions and cost-of-living adjustments. All three companies agreed to tentative agreements about two weeks ago. Workers at other GM assembly plants voted against the deal, including 60% of workers at its Fort Wayne, Indiana, truck plant, 53% at its Wentzville, Missouri, plant, 58% of workers at GM's Lansing Grand River plant and 61% of workers at the Lansing Delta Township plant. Seven of GM's 11 assembly plants rejected the deal. In addition to Arlington, workers at plants in Detroit, Fairfax, Kansas; and Lake Orion, Michigan; approved the agreement. Only nine facilities are still listed without vote totals on the UAW vote tracker, including GM's Lockport, New York, components plant with about 1,200 members. Those voting in favor of the agreement have a lead of almost 2,500 and many of the facilities still to come include workers who stand to receive large pay increases upon ratification.