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Demon's NHRA competition ban: Good talking point, bad feature

One of the biggest headlines for the Dodge Challenger Demon is that, in stock form, it's so fast that the NHRA won't allow it to compete in the organization's events. It's the ultimate humble brag, "I can't drag race my car because it's so fast it was banned by the sanctioning body." Certainly Tim Kuniskis, head of FCA brands in North America, was excited. He told the press that he hugged the guy that brought him the letter banning the Demon from competition. Unfortunately, the reality is that not being NHRA-legal is kind of silly, and frustrating for owners who would want to actually race. Before we go too much farther, we should explain exactly why the Demon is illegal for NHRA competition. The car is capable of a sub-10-second quarter-mile time both on racing fuel and 91-octane pump gas. Cars that fast are required by the NHRA to have a full, certified roll cage, and the Demon doesn't. Now there are certainly ways to get around this. The most obvious would be for a Demon owner to have a company install a roll cage. Using less grippy tires than the barely street-legal Nitto cheater slicks would probably help bring that time down, too. There's also the option of putting the car into Eco mode, and, yes, the Demon has one. In Eco mode, the Demon makes just 500 horsepower, and trips the lights at the quarter-mile in 11.59 seconds, which will avoid the roll-cage requirement. However, none of these options are ideal. For one thing, if you bought an 840-horsepower car, you're not going to want to limit it when you get to a closed course such as a drag strip. Similarly, you're not going to want to ditch your super-sticky tires at the strip, especially when they're standard equipment. Finally, having to go aftermarket for a roll cage is an inconvenience at minimum, and it seems like a strange oversight considering the rest of the car. This is a car from the factory that comes with drag radials, no passenger seats, a racing fuel tune, air conditioned intercooler, and even skinny front wheels for drag racing. Its purpose is clear, but for some reason, Dodge stopped short of giving it a roll cage that would allow it to compete. Perhaps adding a roll cage would've made it difficult to pass safety regulations, and we would be more disappointed if the car wasn't allowed on the street. Even so, it seems like an odd stopping point.

Chrysler investigating complaints of vehicles with faulty power modules

Chrysler owners are hopping mad after experiencing a series of electrical gremlins in some of the company's vehicles. Issues range from mere annoyances - windows rolling down and radios turning off of their own accord - to serious safety issues, with headlights that randomly shut off at night and cars that stall and refuse to start.
The issues are being blamed on the total integrated power module, which can cost up to $1,000 for customers to replace. This, of course, has led to a hefty batch of complaints to the National Highway Traffic Safety Administration, with 240 owners expressing their displeasure so far. Another site, CarComplaints.com, has registered over 300 complaints relating to the 2010 to 2011 Jeep Grand Cherokee and Dodge Durango, alone, according to The New York Times.
Chrysler has acknowledged that it's investigating the complaints and is analyzing the faulty TIPMs, but that isn't quite enough for customers of the affected vehicles. The newspaper has snagged a few of the more harrowing tales with the electrically challenged Chrysler products, culled from the NHTSA complaints.

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