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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.

2016 Chevrolet Malibu First Drive [w/video]

You have to appreciate honesty in this business. When a car company admits its offering in a segment isn't up to the task, it catches you by surprise. The surprisingly open Chevy reps stopped short of saying that making the last Malibu smaller was a mistake, but given that the righting of the ship included a lengthening of this new model, it was certainly implied. The eighth-generation Malibu lasted only three years, with a major update coming just one year in to try and fix some of the bigger concerns. The goal for the 2016 Malibu wasn't to make a competent product better, it was to make an okay one good again. That started with a stretch. The Malibu is long again, a big car that meets America's warped idea of a midsized car. Because of this, the Malibu's dimensions sidle up to the Impala's. In fact, it's within a fraction of an inch of the Impala's wheelbase measurement, and sits right between the last Malibu and the Impala in terms of EPA passenger volume. The back seat gets the most of the payoff, bringing it back into competition with other midsized counterparts. The Malibu is now one of the longest in the segment, but also among, if not the, lightest. The 2016 model is claimed to be about 300 pounds lighter than its dimensionally challenged predecessor. While most new models tend to choose between lighter or larger these days, Chevy managed not-insignificant improvements to both. Styling doo-dads no longer separate the trim levels, it's the features inside that fuel the upsell. Some of that weight came out of the front end. The aluminum hood is lighter than before, and we'd wager that's because it stops very short of the leading edge of the car. Instead, the nose is enshrouded in a big plastic fascia, which has to be an advantage at the scales but creates a somewhat unfinished look. That's amplified by the fact that everything ahead of the hood is a bit busy, and actually surprisingly aggressive, in contrast to the rest of the design. The new Cruze, with its cowl-to-grille hood, wears a more cohesive new-Chevy front end. The styling adopts the, dare we say it, coupe-like look of many (most?) new family sedans. The profile is attractive enough but almost generic now since the Chrysler 200, Ford Fusion, and others have already moved in this direction. The rear-end styling is inoffensive, almost original Mercedes CLS meets current Impala.

2016 Chevy Camaro to drop 200 pounds

The sixth-generation Chevrolet Camaro makes its grand debut on May 16 at a big celebration on Detroit's Belle Isle. Until then, Chevy's strategy seems to be showing off the pony car's new components piece by piece. With the exhaust headers and front end already on display, the Bowtie is now giving a glimpse at some of the upcoming model's aluminum components. The Camaro is going on a diet for its latest generation, and Chevy claims that the switch to the Alpha platform and other new components shed over 200 pounds compared to the current model. That will put the pony car at around 3,500 pounds. The lower weight will contributes to better fuel economy, quicker acceleration and more direct handling, according to the automaker. Among the changes are aluminum front and rear suspension assemblies (pictured above) that weigh 21 percent less than the current units. Also, Chevy promises in its announcement "links on some models feature an intricate, structurally optimized design made with a rigid composite material that's even lighter than aluminum." In addition to these improved parts, the Camaro uses the lightweight metal for the beam that supports the instrument panel to save 9.7 pounds more. The only two pieces reportedly carrying over to the latest design are Chevy's bowtie and SS badges, and at least one engine in the range is known to be a version of the 6.2-liter LT1 V8. With over a month until the next Camaro's debut, we might get a glimpse of even more of the car's new parts in the coming weeks. Related Video: 2016 Camaro Does More with Less New model is at least 200 pounds lighter than current car 2015-03-30 DETROIT – For the all-new, 2016 Chevrolet Camaro, the team was challenged to improve the handling, acceleration and fuel economy of the award-winning current model. To meet all three objectives, the team focused on a singular mission: reduce mass. By obsessively searching for opportunities to save ounces, the team pared more than 200 pounds off the Camaro compared with the fifth-generation model. As a result, the Camaro does more with less, according to Al Oppenheiser, Camaro chief engineer: "We kept the cornering confidence and control that make the Gen 5 Camaro 1LE so fun to drive, and added a greater sense of agility," he said. "The new Camaro brakes harder, flicks into corners more quickly, and drives out of the corner faster.