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Dodge could resurrect the ACR nameplate on a track-hungry Challenger

Dodge will reportedly celebrate the Challenger's 50th birthday by introducing a track-focused variant of the coupe that will resurrect the American Club Racer (ACR) nameplate. It will arrive as a cocktail of the automaker's best race-bred parts, including bits and pieces sourced from the defunct Viper. The Challenger ACR will be presented as a follow-up to the sold-out Challenger Demon available during the 2018 model year. While Dodge developed the 840-horsepower Demon for drag racing, it's designing the ACR to tackle America's windiest road courses, according to anonymous sources who spoke to website Mopar Insiders. It will need to take a turn, not just go really fast in a straight line. To that end, Dodge will give its popular muscle car more downforce by adding a full body kit that will include a huge adjustable rear wing shaped like the one fitted to the Viper ACR. The racer will be based on the Widebody variant of the Challenger, which handles considerably better than its narrow-bodied sibling, and it will rely on composite materials like carbon fiber to keep weight in check. In other words, it will receive more extreme modifications than the Challenger SRT8 ACR that Dodge introduced during the 2011 SEMA show but never approved for production. If this configuration sounds familiar, it's likely because the carmaker sponsors an independent team named Wesley Motorsports, which races a Hellcat Redeye all over America. It features an adjustable suspension provided by Blistein, slick Toyo tires, and a supercharged, 797-horsepower V8. The Challenger ACR described by Mopar Insiders sounds a lot like the one Wesley Motorsports regularly enters in hill climbs and time attack competitions (pictured). Coincidence? It's too early to tell for sure. Dodge hasn't commented on the report, and it hasn't announced what it has in store for the Challenger's 50th anniversary. The original Challenger made its debut in late 1969, and it arrived in showrooms during the 1970 model year, so Dodge will need to unwrap its surprise before the start of the 2021 model year to keep it timely. Expect an announcement during the first half of 2020. While pricing information remains a mystery, Mopar Insiders added the Challenger ACR will come standard with only a driver's sat. Buyers will be able to add a passenger seat for $1.

500+ hp Stellantis 'Hurricane' I6 previews a world without Hemis

After years of rumored development, Stellantis has revealed its new six-cylinder engine family. The 3.0-liter, twin-turbocharged "Hurricane" I6 will offer V8 power, forced induction torque and six-cylinder efficiency in a package designed to fit into any of the company's North American rear-wheel-drive platforms.  What is "V8 power," exactly? Well, in standard output guise, the new I6 cranks out more than 400 horsepower (the specific figure will vary by application) and 450 pound-feet of torque, while the high-output variant is good for more than 500 horses and 475 lb-ft. The final figures will be dependent on the application. We'll save you a little legwork: In current Ram, Jeep and Dodge products, the 5.7-liter Hemi tops out at about 395 hp and 410 lb-ft, give or take, and the 6.4-liter around 485 hp and 475 lb-ft.    This is a clean-sheet design that is only related to the company's turbocharged four-cylinder by some common measurements. The I6 is exclusively direct-injection (no hybrid/port-injection here) and the two I6 variants share 96 common parts, including the block and oil pan design. The differences are found in their internals, intake plumbing, valvetrain components and the turbochargers themselves. Stellantis is not yet ready to share specs or supplier info for the turbos but says announcements will come from its partners soon.  The standard-output I6 has a compression ratio of 10.4:1 and revs to 5,800 rpm. It will run on regular fuel, albeit with reduced performance; 91 octane is recommended for maximum output. The high-output variant has a compression ratio of 9.4:1 and will rev to 6,100 rpm. That one will require premium. The new I6's advantages go beyond basic power output. Every Hemi family engine currently in production is based on an iron block design, so they're heavy. The aluminum-block I6 shaves weight off the total engine package, even if some of that gets added back thanks to the turbos and their associated plumbing. The standard-output I6 weighs 430 pounds, Stellantis engineers told us; the high-output adds just another 11. Fully dressed 5.7-liter V8s are in the 550-560-pound ballpark, and 6.4-liters close in on 600 pounds.  You may be wondering, "Why a clean-sheet gasoline engine now, when the industry is moving toward battery-electrics?" A valid inquiry, and one Stellantis was prepared to address. While the company will be pivoting to electrification over the next decade, it won't be instantaneous.

Dodge Viper recall requires small-handed mechanics

It has been over a year since Chrysler first announced its recall of 3,660 2003-2004 Dodge Vipers because the airbag could suddenly deploy. The repairs are finally beginning, and it appears to be a nightmare for mechanics.
According to the automaker's filing with the National Highway Traffic Safety Administration, the airbag control module can fail, which causes the bag or the seatbelt pre-tensioner to deploy without warning. It took over a year to design the new parts, according to The New York Times. However, Chrysler finally has a new "jumper harness with an in-line diode filter circuit" ready to fix the problem.
The dilemma now moves to the mechanics who have to actually install the part. A 47-step guide from Chrysler explains that the procedure should take about two hours. It's not an easy job, though. Most of the dashboard has to be taken apart, and the instructions include this helpful bit of advice: "Installing the jumper harness and filter box into position is not an easy task. Patience, perseverance, and small hands are required." We wish the best of luck to them. The fix comes just in time for the Vipers to enjoy the summer sun.