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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.

Bob Lutz says Tesla remains 'fringe' brand

We've said it before, we'll said it again: Bob Lutz gives great quotes. From his toilet-themed opinion of global warming to Toyota's deity status, the man knows how to get your attention. His latest? Saying that Tesla Motors is and will remain a fringe brand. Take that, Tesla fanbois. This, of course, is the same fringe company that prompted Lutz and his former colleagues at General Motors to start working on the Chevy Volt around eight years ago. The same fringe company that has easily outsold the similarly priced (but don't call it a competitor) Cadillac ELR with its Model S. Lutz did clarify that the fringe status will only last until Tesla comes out with a mass-market electric vehicle that has a range of 200 to 300 miles. Lutz was on CNBC talking about the TSLA stock's recent performance, and he pointed out that even Tesla CEO Elon Musk says that the California automaker's stock is overvalued these days. Despite its prevalence around these parts, Tesla is not yet a household brand. But the company is working hard to get a cheaper, long-range EV to market in the not-too-distant future, so this fringe thing may not last much longer than that show Fringe did. Watch the video below. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. News Source: CNBC via Green Car Reports Green Chevrolet Tesla Green Culture Electric Hybrid PHEV cnbc

2016 Chevy Camaro coming on May 16

We officially have a date for the arrival of the sixth-generation Chevrolet Camaro. Fans of Chevy's Mustang fighter should look forward to May 16, and if they're in the Detroit area, they'll want to make their way down to Belle Isle, home of the Chevy Indy Dual in Detroit. We still don't have a great deal of information on the new Camaro, aside from what's been gleaned in spy shots and the like, although Chevy's press release was accompanied by the image shown above. That, friends, looks a lot like the Camaro's badge of old. Its presence here could be an indication that an old logo is set to return to production. That's because what Chevy is planning could best be described as a jamboree, or Camaro-palooza, if you prefer, rather than a typical unveiling. Chevy is inviting up to 1,000 Camaro fans to descend on Belle Isle for a day-long event that will offer up a lot more than their first look at the sixth-generation muscle car. Fans can hot lap the Belle Isle circuit from the passenger's seat of a new Z/28, check out a Camaro "museum," featuring "the most significant vehicles from the brand's history," and chat with some of the Camaro's designers and engineers. "This will be an event Camaro fans will not want to miss," Camaro marketing manager Todd Christensen said in a statement. "This is only the sixth time we have introduced an all-new Camaro. We wanted to share the moment with the customers and fans who have helped make Camaro both America's favorite performance car for the past five years, and a cultural icon since 1967." We'll almost certainly be on hand for the debut (and you'll absolutely be able to get all the details here). And as we said, if you happen to be in the Detroit area in mid May, you can register to attend the unveiling. All you need to do is head over to Chevy's dedicated website for the sixth-generation Camaro and sign up for the big event, on Saturday, May 16. Scroll down for the full press release. 2016 Camaro Drops Cover on May 16 in Detroit DETROIT – Chevrolet is inviting fans to see the all-new 2016 Camaro on Saturday, May 16, in Detroit. The sixth-generation Camaro will cap a day-long celebration on Belle Isle, the 982-acre island park that is home to the Chevrolet Detroit Belle Isle Grand Prix May 29-31. "This will be an event Camaro fans will not want to miss," said Todd Christensen, Camaro marketing manager. "This is only the sixth time we have introduced an all-new Camaro.