2006 Chevrolet C6c042 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.

2020 Chevy Trax spied sporting design cues from the new Blazer

We saw spy shots in August for what we thought was either a redesigned Chevrolet Trax or new GMC subcompact crossover. At the time we were leaning Chevy. But after this latest batch of spy shots taken near GM's proving grounds, we're now thinking this one is the Trax replacement and the other one was a GMC. For one, the thin row of LEDs looks remarkably similar to the 2019 Chevy Blazer's LED strip. The additional light slightly below that is similar to the Blazer as well, leading us to believe that the next Trax will have a Blazer-esque front end. At first glance, this vehicle looks slightly larger than today's Trax with a much brawnier shape than the current blob-like design. The rear roof cladding could be hiding the same sloped rear window with spoiler hangover we see on the Blazer. Circling back to the other small GM crossover we caught testing, this one doesn't have those Blazer elements. The curved windshield and sloping roof are like those of the GMC Terrain, as are the horizontal grille bars. By contrast, the above car has a straighter windshield and a roof shaped more like the Blazer. One element that does seem to diverge from the new Blazer are the taillights, but they don't exactly look production-ready anyway. If we're right about this being the next Trax (and we're pretty sure we are) then this looks to be a more distinctive vehicle than what it will replace. The mirrors have left their awkward spot on the doors, and it's shaping up to be a much sportier looking crossover as a whole. This vehicle will most likely end up being a 2020 model year car, and if so, we would expect to see undisguised photos of both it and the assumed GMC version next year. Related Video: Featured Gallery 2020 Chevrolet Trax spy shots Spy Photos Chevrolet GMC Crossover SUV Future Vehicles chevy trax

Bring back the Bronco! Trademarks we hope are actually (someday) future car names

Trademark filings are the tea leaves of the auto industry. Read them carefully – and interpret them correctly – and you might be previewing an automaker's future product plans. Yes, they're routinely filed to maintain the rights to an iconic name. And sometimes they're only for toys and clothing. But not always. Sometimes, the truth is right in front of us. The trademark is required because a company actually wants to use the name on a new car. With that in mind, here's a list of intriguing trademark filings we want to see go from paperwork to production reality. Trademark: Bronco Company: Ford Previous Use: The Bronco was a long-running SUV that lived from 1966-1996. It's one of America's original SUVs and was responsible for the increased popularity of the segment. Still, it's best known as O.J. Simpson's would-be getaway car. We think: The Bronco was an icon. Everyone seems to want a Wrangler-fighter – Ford used to have a good one. Enough time has passed that the O.J. police chase isn't the immediate image conjured by the Bronco anymore. Even if we're doing a wish list in no particular order, the Bronco still finds its way to the top. For now (unfortunately), it's just federal paperwork. Rumors on this one can get especially heated. The official word from a Ford spokesman is: "Companies renew trademark filings to maintain ownership and control of the mark, even if it is not currently used. Ford values the iconic Bronco name and history." Trademarks: Aviator, AV8R Company: Ford Previous Use: The Aviator was one of the shortest-run Lincolns ever, lasting for the 2003-2005 model years. It never found the sales success of the Ford Explorer, with which it shared a platform. We Think: The Aviator name no longer fits with Lincoln's naming nomenclature. Too bad, it's better than any other name Lincoln currently uses, save for its former big brother, the Navigator. Perhaps we're barking up the wrong tree, though. Ford has made several customized, aviation themed-Mustangs in the past, including one called the Mustang AV8R in 2008, which had cues from the US Air Force's F-22 Raptor fighter jet. It sold for $500,000 at auction, and the glass roof – which is reminiscent of a fighter jet cockpit – helped Ford popularize the feature. Trademark: EcoBeast Company: Ford Previous Use: None by major carmakers.