1967 Chevrolet Camaro Ss on 2040-cars

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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 forced to cut truck production amid semiconductor shortage

WASHINGTON — General Motors said Wednesday it will cut some truck production in North America because of the ongoing global semiconductor shortage. The largest U.S. automaker said its Flint Assembly plant that builds the Chevrolet Silverado HD and GMC Sierra HD trucks will operate on one production shift the week of July 26. GM said its Ft. Wayne Assembly plant in Indiana that builds the Chevrolet Silverado 1500 and GMC Sierra 1500 model trucks will be idled next week. GM's Silao Assembly plant in Mexico that also builds the Chevrolet Silverado 1500, Cheyenne (for the Mexico market) and GMC Sierra 1500 will also suspend production next week. All three plants are expected to resume regular production the week of August 2. Related video:

Foreign automakers pay from $38 to $65 per hour to non-union workers

As leaders for the United Auto Workers gather in Detroit for their Special Convention on Collective Bargaining to work out the negotiating stance for this year's new labor agreements with the Detroit 3 automakers, what they most want to do is figure out how to eliminate the two-tier wage scale. However, the lower Tier 2 wage has allowed the domestic automakers to reduce their labor costs, hire more workers, and compete better with their import competition. As it stands, per-hour labor rates including benefits are $58 at General Motors, $57 at Ford, and $48 at Fiat-Chrysler – a reflection of FCA's much greater number of Tier 2 workers. The Center for Automotive Research released a study of labor rates (including benefits) that put numbers to what the imports pay: Mercedes-Benz pays the most, at an average of $65 per hour, Volkswagen pays the least, at $38 per hour, and BMW is just a hair above that at $39 per hour. Among the Detroit competitors, Honda workers earn an average of $49 per hour, at Toyota it's $48 per hour, Nissan is $42 per hour, and Hyundai-Kia pays $41 per hour. The lower import wages are aided by their greater use of temporary workers compared to the domestics. Automotive News says the ten-dollar gap between those foreign camakers and the domestics turns out to about an extra $250 per car in labor, which adds up quickly when you're pumping out many millions of cars. That $250-per-car number is one that, come negotiating time, the Detroit 3 will want to reduce, as the UAW is trying to raise both Tier 1 and Tier 2 wages. Another wrinkle is that the domestic carmakers are considering the wide adoption of a third wage level lower than Tier 2. Some workers who do minor tasks like assembling parts trays kits and battery packs already make less than Tier 2, but the UAW will be quite wary about cementing yet another wage scale at the bottom of the system while it's trying to fight a bigger battle at the top. News Source: Automotive News - sub. req., BloombergImage Credit: AP Photo/Erik Schelzig Earnings/Financials UAW/Unions BMW Chevrolet Fiat Ford GM Honda Hyundai Kia Mercedes-Benz Nissan Toyota Volkswagen labor wages collective bargaining labor costs