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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.

Black Friday could power record November sales

Black Friday allows some shoppers to line up in the wee hours for doorbuster deals on laptops and TVs, but the day after Thanksgiving could mean huge profits for automakers this year, too. Multiple industry analysts predict record growth for the industry for November, and the upcoming incentives could help those numbers. TrueCar predicts that Black Friday incentives could provide a major boost, and it estimates a November sales jump of 3.9 percent from last year to a record for the month at over 1.35 million vehicles. As examples of potential deals, Chevrolet, Buick, and GMC plan to offer up to 20 percent off some models, and FCA US has no-interest financing for up to 75 months from its brands. "Consumers are excited about Black Friday promotions and these month-long events appear to be resonating with car buyers." Eric Lyman, TrueCar's vice president of industry insights, said in the report. Black Friday only recently became a big day for auto sales, according to an analysis from Edmunds. Last year, Thanksgiving weekend posted double the sales as any other weekend in the month. The company predicts a sales volume of over 1.33 million vehicles for November. If that happens, it would be the beat the previous record of 1.32 million sales for the same month in 2001. Some forecasts temper the gains for November but only slightly. Kelley Blue Book predicts flat year-over-year sales at 1.3 million vehicles, but that's largely because there are two fewer sales days in 2015 versus in 2014. "Black Friday deals on vehicles have grown in popularity in recent years, and should be a big contributor to this month's sales results," said analyst Tim Fleming in the study. The combined research from J.D. Power and LMC Automotive have the lowest November prediction among this group at just over 1.279 million sales for the month versus 1.299 million in 2014. However, once the researchers adjust the figures for the two fewer selling days, 2015 could actually be seven percent higher than last year. TrueCar Finds New Auto Sales in November to Reach Monthly Record Black Friday promotions bolster sales gains; industrywide incentives up 6% from last year November 24, 2015 12:11 PM Eastern Standard Time SANTA MONICA, Calif.--(BUSINESS WIRE)--TrueCar, Inc. (NASDAQ: TRUE) projects total new vehicle sales, including fleet deliveries, will reach 1,352,500 units in November, a 3.9 percent increase from a year ago and the highest ever for the month.

New GMC feature reminds drivers to check for kids in hot cars

We see the stories every summer: Dozens of children die from heat stroke every year after being left inside hot cars. GMC has introduced a feature in the 2017 Acadia in an effort to help curb the problem. Simply called Rear Seat Reminder, it alerts the driver if the vehicle suspects someone might have been accidentally left behind. GMC's alert will trigger under certain circumstances. Five chimes will sound and a warning will display if the rear doors are opened and closed within 10 minutes of the vehicle starting or if those doors are opened while the vehicle is running. The system does not sense items or people in the rear seat like the front passenger seat would to trigger the airbag. Warnings will be displayed regardless of interior or exterior temperature; while the summer months are the deadliest, leave-behind deaths occasionally occur during cold weather. Drivers should be aware that temperatures in vehicles can quickly rise to dangerous levels, even if the ambient temperature seems cool and comfortable. View 23 Photos Unfortunately, a large percentage of children are intentionally left in cars. A negligent caretaker, whether it be a parent, grandparent, or babysitter, can leave a child behind while they go to work or run an errand, not expecting any problems. Some children unintentionally trap themselves in cars while playing in the cabin or trunk. The Acadia's system is unlikely to prevent these scenarios. While we believe that GMC should be commended for making an effort to put an end to these tragedies, we're not certain how effective the system might be until driver education improves. It's also possible drivers will come submit to warning fatigue and begin to ignore the messages. That said, if this software-based solution prevents just one death, it was worth the effort. Related Video: Image Credit: GMC GMC Safety Crossover gmc acadia