1972 Dodge Dart Swinger on 2040-cars

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Dodge Challenger ACR rumored finally on its way using Viper ACR as benchmark

In 1995, Dodge released the ACR Neon, an unlikely combination of cheap, compact American sedan and high-performance parts and engineering marked by initials standing for American Club Racer. Dodge sold a heap of them, so the automaker flexed the ACR brand's potential with the first ACR Viper in 1999. The racy coupes made huge noise for Dodge and the Viper. After the fourth-gen Viper ended production in 2010, Dodge took a Challenger ACR concept to SEMA in 2011. But instead of carrying the coupe to production, Dodge resurrected the Viper for 2013 and got one more Viper ACR model out during the last Viper's final years. With the Viper gone again, it appears Dodge is sorting out that Challenger ACR concept for real. Last October, Mopar Insiders reported the automaker was trying to get a Challenger ACR prepared for the model's 50th anniversary this year. The timing looks highly unlikely, but an Allpar source says the track-happy coupe is still coming, and with bonkers expectations and gear. We're talking about a big-boi widebody Challenger tuned to do hard laps, fast, around twisty circuits, all day long. An Allpar insider known as "Muther," a code name to tug at John le Carre's heart, said Dodge is considering two engines. Because the point of the car is to be raced and some series don't accept forced induction, one trim would fit the naturally aspirated 392 Hemi from the R/T Scat Pack. There's no telling if that motor would get a power bump, but the Challenger ACR concept upped its output slightly with measures like a cat-back exhaust. The other trim, naturally, would fit the 6.2-liter Hellcat Redeye V8.     Muther told Allpar that if engineers can get the car under 4,000 pounds, the math points to being within two seconds of the time set by the Viper ACR-E at Road America. That "E" represents the Extreme Aero Package, with addenda like a deeper front splitter, dive planes, and an adjustable, dual-element rear wing that helped the Viper ring up 14 lap records on U.S. tracks. The fastest time we know of for a Viper at Road America is from 2011, factory race driver Kuno Wittmer doing 2:20 even in a Gen IV Viper ACR. Wittmer's ride weighed 3,408-pounds. Dodge boffins want to get the Challenger ACR under 4,000 pounds. Achieving the weight goal would mean cutting at least 387 pounds from a standard R/T Scat Pack Widebody, and 512 pounds from the Hellcat Redeye Widebody if that trim has the same target.

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.

2015 Ford Mustang vs. Camaro and Challenger [w/poll]

The horsepower wars are tightening among the Detroit Three, as the Ford Mustang, Chevrolet Camaro and Dodge Challenger are getting bigger, more powerful, and yes, more fuel efficient.
That came into sharper focus this week as more information was revealed about the most insane Challenger ever - the 707-horsepower Hellcat - followed quickly by Ford's in-depth showcase of the 2015 Mustang in Dearborn.
It's shaping up to be a golden age for enthusiasts, and what's under the hood is becoming more important than ever.