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1983 Motorweek showdown pits Porsche 928S vs. Chevy Camaro Z28

Last month, Motor Trend threw the Camaro Z/28 and Porsche 911 GT3 into the bear pit and let them fight it out. Way back in 1983, MotorWeek had the same idea, comparing the Camaro Z/28 to the Porsche 928S. At the time, the Camaro was America's best selling sports coupe, the 928S was Porsche's top-of-the-line model that also had the highest top speed of any car sold here. And the price differential was even more stark then: $13,600 for the Camaro, $45,000 for the Porsche. That put the Z/28's cast-iron, 5.0-liter V8 with 190 horsepower and 240 pound-feet of torque against the all-aluminum 4.7-liter V8 with 234 hp and 263 lb-ft in the 928S. Even with that and the Camaro being 14 inches longer than the Porsche, the American was a surprising 40 pounds lighter than the German. The show took them to Summit Point Raceway in West Virginia to see how close a relative performance bargain could hang with a the German GT. Both had five-speed manual transmissions, but the high-speed corners and tight sections of Summit Point would test other handling variables, including the "bone-rattling" Camaro's solid rear axle and disc and drum brake setup vis-a-vis the four-wheel disc brakes and independent suspension on the "firm-but-smooth" Porsche. Paradoxically, the larger disparity 22 years ago resulted in a closer result. Check out the video to see how the Summit was won. News Source: MotorWeek via YouTube Chevrolet Porsche Coupe Luxury Performance Classics Videos chevy camaro z28 porsche 928 retro review

GM exploring ways to raise half-ton Duramax diesel tow rating

Lots of truck owners cheered when GM announced fuel economy numbers for the 2020 Chevrolet Silverado with the 3.0-liter Duramax diesel inline-six. Even after Ram let loose its EPA mileage ratings for the 2020 Ram 1500 EcoDiesel, the Chevy oil-burner still took the trophy. The victory was years in the making, GM engineers spending an entire four-year development cycle refining the LM2 Duramax to increase mileage. The tradeoff, as well all know by now, is towing; the Duramax in half-ton duty pulls a maximum 9,300 pounds in the Silverado. Rivals across town can do more, the Ford F-150 PowerStroke rated at 11,500, the Ram 1500 EcoDiesel game to pull 12,560. GM engineer John Barta told Muscle Cars & Trucks that more hauling chops could be on the way, explaining, "We’re actually looking at upgrading some of the materials around (the engine bay) to see if we can maybe raise our tow rating." Engine bay materials are at issue due to thermal complexities underhood. John Barta, GM's assistant chief engineer of diesel engine controls, said the Duramax's inline-six configuration allowed engineers to get emissions hardware like the combined selective catalytic reduction, diesel oxidation catalysts, and diesel particulate filter unit closer to the engine, where it heats up quicker, getting emissions down quicker. But that filter puts another heat source in those confines, enforcing a cap on the tow rating to keep the engine and other systems from overheating. "If you look under the hood," he said, "youÂ’ll see a significant amount of silver ‘moon tapeÂ’ around to make sure things arenÂ’t getting overheatedÂ… if we were to go up in higher towing, which we can, we start impacting the possibility of deteriorating some of the components.” There isn't much space for more grille, so swapping for a better grade of "moon tape" or a different kind of material could reduce engine bay heat, extracting a higher tow rating in the process.  It's important to note a point Barta's been making for months about the Duramax figures, though. "Even though itÂ’s nice to brag about big numbers, in reality, light duty customers are not towing that large with their trucks," and, "We do know that (95 percent) of our light duty customers donÂ’t tow over 9,000 pounds." On our First Drive of the 2020 Silverado diesel we called out the tow rating, but emphasized that the Chevy and GMC have more important challenges to overcome.

Chevrolet only automaker to win EPA's 2015 Climate Leadership Awards

Chevrolet was the only automaker to be on the list of entities for the US Environmental Protection Agency (EPA) Climate Leadership Awards. Of course, the accolades had nothing to do with any vehicle's tailpipe emissions, General Motors can still be proud. The automaker is engaging in what it calls the Chevrolet Clean Energy Campus Campaign. Chevy is working with the US Green Building Council, among other groups, to find ways for buildings in primary and secondary schools as well as college campuses to reduce their collective carbon footprint via better design. The EPA pointed out the "carbon performance methodologies" used by Chevrolet to run the program and spur lower emissions from its campus partners. The effort is part of Chevrolet's broader goal to reduce greenhouse-gas emissions by as many as 8 million metric tons of CO2. And it's going to take more than bunch of plug-in Volt and Spark EVs to do that. Other entities feted by the EPA include UPS, Bank of America, the cities of San Francisco and Oakland, Clorox and Tiffany & Co. Yes, Tiffany. Take a look at the EPA's press release below, and find out more information on Chevy's program here. UPS, Bank of America, SC Johnson Among 16 Organizations across the U.S. Recognized for Climate Action / EPA also recognizes Chevrolet Clean Energy Campus Campaign, San Diego Regional Climate Collaborative in new Innovative Partnerships Category WASHINGTON – From an innovative partnership enabling colleges to sell carbon credits to fund clean energy projects on campuses to some of the country's leading corporations setting and exceeding aggressive emission reduction goals, the U.S. Environmental Protection Agency's Climate Leadership Award winners announced today are demonstrating that innovative actions to combat climate change are smart business decisions. Sixteen organizations and one individual representing a wide array of industries from finance and manufacturing to retail and technology show exemplary corporate, organizational, and individual leadership in response to climate change. "I am proud to recognize our Climate Leadership Award winners for their actions to reduce the harmful carbon pollution that's fueling climate change," said EPA Administrator Gina McCarthy. "Our winners are demonstrating that a healthy environment and a strong economy go hand in hand.