1981 Chevy Corvette on 2040-cars

Auto blog

How GM engineers are using diaper 'snow' to keep you warm

Testing how snow affects General Motors' vehicles isn't really a problem right now for the company's engineers, but in the dog days of summer the process isn't exactly easy. The only real option is for them to book time at the automaker's climatic wind tunnel. However, a flash of brilliance from an engineer allows snow to be simulated regardless of the temperature outside, and the discovery is all because of his daughter's wet diaper. The realization came to GM Thermal Systems engineer Nicholas Jahn while he was swimming with his daughter and noticed how her diaper ballooned in size in the water. He found out the substance that makes this possible is called sodium polyacrylate. When the material gets wet it grows and forms fluffy flakes that are a close imitation of snow. Best of all, the stuff can be prepared easily any time of the year, and it's reusable. The engineering team uses the material to test the effectiveness of the heating systems of GM's vehicles. They spread the sodium polyacrylate over the inlets at the base of the windshield to obstruct the airflow and then crank the heater. After some time, they can see how much is being sucked into the system and design more efficient systems in the future. See how the process works in the video above and read about the diaper discovery in GM's press release below. Diapers Change Chevy Cruze Winter Warm-up Time GM validation engineer uses diaper material "snow" to reduce frigid drives 2015-01-06 DETROIT – An item commonly found on an infant's changing table is helping General Motors' engineers simulate snow year round, ensuring heating systems in cars like the 2015 Chevrolet Cruze can quickly and efficiently warm its interior. Packed snow can prevent air from entering the inlet panel at the bottom of the windshield, obstructing the flow of air into the heating system and reducing the amount of air it can push out. This can lead to less efficient warming of the car's interior and windshield defrosting. "The last thing anyone wants to do when it's freezing cold out is scrape their windshield," said Nicholas Jahn, GM Vehicle Thermal Systems engineer. "The testing we perform on the Chevrolet Cruze with the diaper material allows us to maximize the car's heating capabilities." Ironically, Jahn stumbled upon his diaper-based testing method in the middle of summer. During a swim with his daughter, he noticed her diaper multiplied in size when it came into contact with water.

2013 Chevy COPO Camaro announced with two new engines and manual option

Chevrolet is following up the 2012 COPO Camaro with another limited run of the drag-strip-ready production car for 2013. Ditching the superchargers, the 2013 COPO Camaro can only be equipped with one of three naturally aspirated V8 engines, and other new features include the option of a manual transmission, new front springs, some minor styling changes and a lower starting price of $86,000. All cars are designed to abide by the rules of the NHRA's Stock Eliminator or Super Stock classifications, depending on in which series buyers wish to enter their Chevrolet Camaro.
Returning for 2013 is the 427-cubic-inch V8 producing 425 horsepower, but the new engines include a 325-hp 350-CID V8 and a 375-hp 396-CID V8. Buyers can select to purchase all three engines, and each will be matched with the sequence number of that car; the track-only COPO cars will not have vehicle identification numbers and can't be registered for street use.
Chevrolet is also offering unique enthusiast-specific options such as a COPO Build Book and the opportunity for owners to help assemble their car's engine at the Chevrolet Performance Build Center in Wixom, MI.

Train derailment leaves Jeep, GMC, Chevy pickups damaged in Nevada

An unfortunate train derailment is causing some inevitable delays for pickup truck customers west of Nevada. Yesterday morning, 33 train cars derailed in Lincoln County, and the cargo that was being transported consisted of new Jeep Gladiators and Wranglers along with Chevrolet Silverados and GMC Sierras, judging from the photos released by the Lincoln County Sheriff’s Office. The train derailment also caused the adjacent road to be closed, and local law enforcement recommends the area is to be avoided as long as it takes to clean it all up. In the photos, damaged Jeeps and other trucks sit either on their wheels or shiny-side-down as the incident is being assessed. Available information says there were thankfully no personal injuries, but itÂ’s not likely any of these trucks will end up in customer hands, even with a significant discount. Pre-registration transport damage, significant or not, has often resulted in scrapping complete vehicles so that manufacturers can steer clear of liability issues. Hooniverse.com, which also reported on the incident, notes a couple of interesting things. Firstly, the upended Gladiator seems to have a pretty sturdy support structure for its glasshouse, thanks to its new rollbars. Another matter is that the GM trucks, also pictured, wear discreet and temporary transport steel wheels instead of fancier items, perhaps to deter thieves eager to grab a shiny set from trucks on their way to the dealer. Still, itÂ’s a shame these vehicles could never fulfill their hauling purposes in the hands of new owners. Perhaps the manufacturers can at least use the damage for data-gathering purposes. Related Video: