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FCA and Cummins named in diesel emissions class-action lawsuit

Chrysler is now the first United States-based carmaker to be sued for allegedly skewing emissions results. In a move that sounds eerily similar to the troubles of European manufacturers, Chrysler is claimed to have hid diesel engine characteristics causing emissions as much as 14 times higher than permitted by regulations. According to Bloomberg, the lawsuit alleges that Chrysler, together with its diesel engine partner Cummins, has concealed the nitrogen oxide output of certain Ram vehicles produced between 2007 and 2012. The NOx pollutants were meant to be broken down in a process called regeneration in the truck's NAC system, or NOx Absorption Catalyst, which predated the 2013-introduced SCR, or Selective Catalytic Reduction system. By design, the NAC captures and stores NOx emissions, converting them to nitrogen and oxygen through a catalytic process. The lawsuit claims the Cummins engine's system has a limited capacity to store the emissions, and as a result the pollutants escape, increasing emissions, worsening fuel consumption and wearing down the catalytic converter. The later, cleaner SCR system uses a urea-water injection, and it gradually replaced the NAC on Cummins 6.7-liter engines, as it was first implemented in 2011 and made standard in 2013. As Bloomberg notes, the model years of Ram trucks involved in the lawsuit predate the earliest Volkswagen "Dieselgate" models by two years. The lawsuit, filed on behalf of 500,000 truck owners, accuses Chrysler and Cummins of fraud, false advertising and racketeering. As an underlying motive, the filing mentions a 2001 change in EPA emissions standards. Announced to become effective in 2010, the EPA requirements drove Chrysler and Cummins to try and reach those already by 2007. However, the NAC system is said to have fallen short of these goals, and the filing claims that Chrysler and Cummins chose to "rig" the engines instead. The affected vehicles predate the 2014 merger of Chrysler and Fiat. FCA US has released a statement regarding the lawsuit, saying it will contest the lawsuit "vigorously". News Source: BloombergImage Credit: Getty Editorial Government/Legal Green Chrysler Dodge RAM Emissions Diesel Vehicles FCA cummins diesel

Dodge Demon makes so much torque, it needs stronger driveline parts

Torque is a lovely thing, a sweet and wonderful force that twists and pulls and can help propel a two-ton metal box forward at comical speeds. Torque is also fickle and will bend and break those same metal parts without a second thought, which is why the new Dodge Demon is compensating for its increased torque with some new re-engineered and reinforced parts. And there's software intended to combat wheel hop, which one of the most dramatic ways torque can break stuff. Week 8's video, "Race-hardened Parts," gives a hint towards what all these new parts can do. While we still don't know how much torque the Demon will throw out, we do know it's enough to warrant an upgraded prop shaft, half shafts, and a differential housing. The Challenger Hellcat, which is the basis for the Demon, makes 650 pound-feet of torque already. The new parts will go a long way toward making sure the work from the Demon's engine is properly translated into motion by those Nitto drag radials. The new prop shaft uses high-strength steel, heat-treated stub-shafts, and increases the tube thickness by 20 percent for a 15 percent increase in torque capacity. Additionally, Dodge says the upgraded differential housing allows for a 30 percent increase in torque capacity by using heat-treated A383 aluminum alloy and a higher strength shot-peened gear set. The 41-spline half shafts that deliver 20 percent increased torque capacity through the use of high-strength low alloy steel and 8-ball joints. In addition to the hardware, the Launch Assist software has been tuned to help alleviate wheel hop. Dodge says the Demon is the first factory production car that uses wheel speed sensors to detect hop and momentarily cut torque to compensate. This means a driver can keep their foot planted on the floor while the computer sorts out the traction. Previously, the best solution was to back off the throttle to manually cut the load. Finally, the Dodge Demon will offer a four-point harness mounting bar as an optional accessory. The part will be supplied by Speedlogix and fits in place of the deleted rear seat. Customers can install the bar without having to hack apart their cars to find a proper mounting point. Look for more teasers and info on ifyouknowyouknow.com in the lead-up to the Demon's debut at the 2017 New York Auto Show. Related Video: Image Credit: FCA Dodge Performance dodge demon dodge hellcat

2015 Dodge Challenger SRT 392

I've just started reading the third installment in a planned five-book biography of Lyndon Baines Johnson, Master of the Senate, written by the incomparable Robert Caro. Conveniently, a recent trip to drive the BMW X6 M and 228i Convertible was to be staged in Austin, TX, within easy driving distance of LBJ's birthplace, Johnson City. And yes, the city is named for his family. Having completed my duties with the Bimmers, I borrowed the spangled 2015 Dodge Challenger SRT 392 you see above, to squire me around the Texas capitol for a weekend, and as a lift out to the Hill Country homestead of our 36th President. Johnson City isn't exactly a road trip mecca, but there's a pretty good brewery, a museum, the reconstructed LBJ house to take snapshots of, and it's a nice drive to get out there if you've got a 485-horsepower muscle car at your disposal. Driving Notes With the heroic Hellcat, this 392 and the R/T Scat Pack (that Brandon Turkus reviewed recently), there are more SRT-treated Challengers to choose from than ever before. There are 707 obvious reasons that the Hellkitty is the top dog (as it were), but there are important difference between this 392 and the Scat Pack, too. Both cars make use of the 6.4-liter Hemi V8 putting out 485 horsepower and 475 pound-feet of torque, but the 392 also gets an adaptive suspension, six-piston Brembo brake calipers (instead of four-piston), wider tires, leather and Alcantara seats, a heated steering wheel, a louder stereo and HID headlights. When LBJ was campaigning for his seat in the House of Representatives, he would've loved to have something as potent as this monster of a V8 under the hood of his canvassing car. The 6.4L snorts with authority before it sends the big coupe forward to just about any speed I'd ask of it, and with a quickness. Johnson was known for haranguing drivers to step on it, when all that stood between himself and a few more votes was the ability to fit one more stump speech into the day. The 392 feels as though it could cover a quarter of the state of Texas in a morning if you throttle down deep enough (faster even than the Johnson City Windmill, I'd guess). Though there's a six-speed manual available, I'm actually quite fond of the eight-speed automatic in the 392. The two-pedal setup better suits the fast-cruiser attitude of the car, and it never served up any poorly conceived shift logic when I left it in D. Of course, the roads are better now than they were in the 1930s and 40s, too.