2000 Chevrolet S10 Ls 4wd Regular Cab, Short Bed on 2040-cars

Auto blog

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.

That time we lapped Indy with Tony Kanaan in a Corvette Z06

We're here in Indianapolis, IN, attending this weekend's 99th running of the Indy 500. The big event happens tomorrow, but the city is buzzing today with all sorts of pre-race festivities. For us, that means checking out Indianapolis Motor Speedway a day early, and getting a hot lap around the racetrack in the official Indy 500 pace car – a 2015 Chevrolet Corvette Z06. Our driver for the occasion is IndyCar racer Tony Kanaan, who won the Indianapolis 500 in 2013. Of course, he'll be competing tomorrow, leaving pace duties to none other than Jeff Gordon. Check out our minute-and-a-half-long lap of the Indy 500 track in the video above, where Kanaan hugs the wall in true race style, getting the Z06 past 150 miles per hour on the back straight. Stay tuned for more Indy 500 coverage later this weekend.

Has Chevrolet gotten the formula right with the Malibu?

Since the Malibu's return in 1997, there has been an internal issue with Chevrolet with getting the midsize sedan formula right in its own way. Let's be frank, the Malibu had a boring beginning as a midsize sedan in 1997. We got the dreadful sixth-generation Malibu in 2004 that brought us an SS model that really didn't deserve the SS badge on it. Hell, its saving grace was fleet sales. But the tides seemed to shift when the seventh-generation Malibu came on the scene in 2008. With the determination of making the Malibu more competitive with other cars in its class, a lot of hard work and effort was put into making the seventh-generation Malibu a timeless and well-crafted vehicle. As an owner of a 2012 Malibu 1LTZ, I have to say that Chevy has fully accomplished it. I love the nicely designed exterior, the interior was comfy enough for those long trips to work each and every day, and it was a very quiet car in my opinion. And its fuel economy was decent, not too bad. The New York Times in 2008 referred to it as "A super Accord, but from GM." In some comparisons, the Malibu was ranked higher than the Honda Accord and the Nissan Altima. It also received the North American Car of the Year award. Love it or hate it, the seventh-gen Malibu was an overall big success for GM. But then in 2013 we got the eighth-generation Malibu. GM gave it a botched release, releasing an Eco model first (that was later discontinued), then later in the year GM released the regular Malibu models. Shifting to a new platform didn't help it either. Even though it separated it further from the Impala, which was built on the same platform as the last-gen Malibu, the shrinkage in legroom, its OK design language, and a poorly crafted interior helped contribute to its overall lackluster sales performance. Not to mention the cars in its class got 10x better than the Malibu as well. Just 18 months after the 2013 Malibu went on sale it received a mild refresh to try to help its OK design, but it didn't help at all. The fate of the eighth-gen Malibu was sealed early on. But wait, a new light came from GM early last year. It came in the form of the ninth-generation Malibu. I have to say, when the curtain came off of it last year, a huge sigh of relief came from me. To me it seemed that Chevrolet took that determination it had in crafting the seventh-gen Malibu and increased it this time around.