SRT Extreme Aero Package Gives Track-Ready Viper More Bite

Featured, Motorsports, Performance, Sports Cars  /   /  By Nina Russin

With 645 horsepower and 600 pound-feet of torque under its hood, the 2016 Dodge Viper ACR is the carmaker’s fastest street-legal production racecar. The car’s panache goes beyond raw power. SRT offers 25 million ways to customize the car’s appearance as part of its “One of One” program, while an extreme aero package enables owners to tune for the track as well.

2016 Dodge Viper TA 2.0

2016 Dodge Viper TA 2.0

The aero package increases the car’s downforce by 21 percent during aggressive cornering, from 1,533 pounds at top speed to more than 1,700. The package gives owners the ability to customize performance without compromising the vehicle’s integrity.

“Although Viper owners can mix and match interiors, exteriors, and stripe packages according to their aesthetic preferences, it doesn’t work to do the same with individual aerodynamic components,” said Jeff Reece, Viper integration manager for SRT engineering.  “Exterior aerodynamic packages have a profound impact on vehicle handling, so they must be developed as a complete system to ensure balance and stability.”

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The stock ACR comes with a 1,776- millimeter wide dual rear wing and front splitter with dive planes. Engineers chose that patriotic number so it would be easy to remember. “Our prototype came pretty close to that size so we just went with it,” said Reece. The wing is 54 percent larger in top surface area than the T.A. (Time Attack) 2.0 package SRT developed for the Viper GTS.

Owners can bolt an extension onto the splitter for the track and remove it for street use.

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The extreme aero package for the Viper ACR increases the size of the rear wing from 1,776 to 1,876 millimeters. The wing sits further rearward and higher on the deck lid. Up front, the package replaces the stock ACR hood with a custom hood including detachable louvers that reduce air pressure inside the front wheel wells. The bolt-on extension for the front splitter is larger with additional supports off the bumper and four dive planes instead of two.

A rear carbon diffuser includes six removable strake extensions to enhance the car’s straight-line stability.

Because the Viper ACR is intended primarily as a race machine as opposed to a street car that can also go racing, the engineering team is composed primarily of individuals who race their own cars. The Viper GTS-R that competed in the American LeMans series as well as the IMSA United SportsCar Championship between 2012 and 2014 served as the test mule for the ACR. The ACR engineering team focused on three areas: chassis, aerodynamics, and tires, in order to give the newest Viper ACR both the performance and durability to win its class on road racing courses all over the world.

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Brembo carbon ceramic brakes with two-piece calipers and six pistons in front (four in the rear) provide fade-resistant stopping power. The brakes have the largest pads ever used on a Viper.

Kumho Ecsta V720 high performance tires were designed specifically for the car with unique compounds and tread patterns front and rear. The rear tires are compounded and have tread designs to optimize traction while the front tires focus on steering response.

For additional information on Viper customizing options, visit eBay Motors listings for spoiler wings or the SRT website.

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About the Author

Nina Russin is an ASE certified automotive technician and writer who has been covering the automotive industry for 30 years. She was a weekly automotive columnist for the Chicago Sun-Times for 10 years, and a contributor to AutoWeek, Automobile Quarterly, Collectible Automobile, Cycle World, and AAA Arizona Highroads Magazine. Russin is co-founder and president of Active Lifestyle Vehicle of the Year, an annual competition.