1 of 50 - Dodge Viper SRT10 ACR-X: The Ultimate Track Machine | MEASURED BY MOTORVAULT

Описание: Join Josh, Eric from Verus Engineering, and professional driver Dan Clarke as they dive into an exclusive review of a heavily modified Dodge Viper ACR-X, one of only 50 ever made. They explore the details behind the 3000+ pounds of downforce that transform this Viper into a true supercar.

In an in-depth interview, Eric reveals what went into pushing the limits of this extreme machine, while Josh and Dan take the car to the track at Putnam Park Road Course for a full shakedown. Watch as Josh reviews every aspect of this Viper’s performance on the edge.

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Special thanks to Alex at ‪@VerusEngineering‬ for the additional footage.

Year: 2010

Make: Dodge

Model: VIPER SRT10 ACR-X

Chassi: #20 of 50 total production

Miles: 2,599

Drivetrain: RWD

Engine: 8.4L V10

Transmission: 6-Speed Manual

Horsepower: 689bhp est. / 589 whp @ 6,140 rpm

Torque: 560 wheel lb/ft @ 5,070

Curb Weight: 3,300 lbs (est)

Exterior Color: Black (satin grey wrap with neon green accents installed in 2023)

INTERIOR COLOR: Black

Vehicle comes with:

Dyno sheet from Prefix Corporation

VERUS Engineering documentation

Sold on a bill of sale

Tires: Hoosier R7

Date:

Front Size: 315/30 R18

Rear Size: 345/35 R18

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The ACR-X was introduced in 2010 and limited to 50 total production units. When under development stage, it was clocked running the Nurburgring at a blistering time of 7:03.058. The Viper ACR-X took the performance attributes of the of the record-setting, street-legal Dodge Viper ACR and the safety equipment of the championship-winning Viper Competition Coupe. This Viper ACR-X is powered by the SRT-developed 8.4-liter V10, equipped with factory headers and a low-restriction exhaust system producing 640 horsepower in stock form. Originally purchased by a hardcore Viper enthusiast from Alabama, it was driven at DE and private track events through 2020 when it was purchased by the second owner with 1,755 miles.

Since purchasing in 2020, few miles were added. In late 2021, the #20 was shipped to Prefix Corporation to update the engine ECU with a final dyno showing and estimated 689hp and confirmed 589whp. Soon after it was trailered to RPM Transmission to install a new Gen5 transmission with 3.72 gear sets and Wavetrac differential. The result, an additional 89hp over the street legal production model and 49hp more than the X offered in 2010. When initially offered to the public, the X showcased many years of performance engineering expertise from the SRT team.

The suspension on the X was further tuned and upgraded specifically for on-track usage, while the weight was lightened by 160 pounds over the production Viper to take on the most challenging road courses around. The current owner added KW Revalved Adjustable Shocks since purchasing and improved braking adding massive racing carbon ceramic rotors and 6-piston calipers.

In late 2021, the owner decided to transform this already blistering quick X into the ultimate track car. Introducing ACR-X Project 68. Working closely with Verus Engineering for two years investing thousands and many hours developing a full downforce CFD study. The result, a breathtaking aero package including high downforce wing, diffuser, side skirts, and wheel well ducts. The additions are a serious contrast from stock and backed by lap times showing the improved downforce figures, while enhancing stability and significantly improving grip in high-speed cornering.

The OEM downforce figures:

• 100mph - 488 lbs downforce, 279 lbs drag

• 120mph - 695 lbs downforce, 402 lbs drag

• 160mph - 1249 lbs downforce, 720 lbs dra

• Efficiency (L/D): 1.73

The High Downforce results:

• 100mph - 1200 lbs downforce, 461 lbs drag

• 120mph - 1733 lbs downforce, 664 lbs drag

• 160mph - 3081 lbs downforce, 1181 lbs drag

• Efficiency (L/D): 2.61

Similar to the Dodge Viper Competition Coupe, the Viper ACR-X contained factory-installed safety equipment such as a factory-designed roll cage, fuel cell and race seat. Several of these safety items were serviced and improved in 2021 including:

New fuel cell

Fire suppression system

Side impact bars were modernized

New Saebelt racing seats and harnesses

Nuke Performance low pressure air jacks were installed in 2021 (125psi).

Swift Springs with multiple sets of spares

Reinforced hubs installed

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Additional items included:

4-spare OZ wheels

Original ACR-X wheels

Spare RB brake pads

Full factory camber kit

Vehicle is available for viewing by appointment only.

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Please consider this an invitation to visit MOTORVAULT! If you have any questions or wish for more information about this vehicle or any other vehicle, please do not hesitate to contact:

Josh Stiegman - [email protected] // 317-643-1444

Brian Henry - [email protected] // 317-520-4663

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