2013 SRT Viper gets the optional Track Pack

Article by Christian Andrei, on February 27, 2013

“To an engineer, it's simple physics. To an SRT Viper Track Pack customer, it's simply incredible.” This is how Chrysler describes the new Track Pack that it is now available for the 2013 SRT Viper. According to the official press release, at the heart of this package is a state-of-the-art braking package.

If on the standard version of the SRT Viper, the brake cooling ductwork are designed to promote maximum cooling and downforce, the Track Pack takes things even further and replaces the replacing conventional thin-post cooling vanes with exotic curved vanes. Moreover, the Track Pack brake rotors draw in from the center, near the hub and the curved vanes then work to pump air outward, cooling the rotor surfaces in a more active manner.

Furthermore, Chrysler says that the Track Pack brakes were designed to be especially effective on the track in the 100 mph-plus range. Due to this, at slower speeds, the cooling advantage dissipates to fall back in line with the standard car. The Track Pack also makes the car lighter, as it is with 32 pounds lighter than the one found in the standard car.

Track Pack owners will save 62 pounds of unsprung weight compared to a standard SRT Viper. Under the hood, the car keeps its impressive 8.4-liter V10 engine delivering 640 hp and 600 lb.-ft. of torque, mated to the Tremec TR060 six-speed manual transmission. "A customer's perception of the brake system depends very much on the way the driver uses the car," notes Graham Henckel, Chief Engineer of the SRT Viper. "The faster you go, the greater the advantage."

Press Release

SRT Viper Track Pack

SRT® Viper customers who elect to extract the highest degree of track performance from their vehicle can opt for the Track Pack. At the heart of this sophisticated suite of subtle upgrades is a state-of-the-art braking package that improves upon the Viper's already impressive brake cooling properties.

All SRT Viper trim levels are equipped with carefully refined brake cooling ductwork designed to promote maximum cooling and downforce. Track Pack brake rotors take this cooling theory to the next level, replacing conventional thin-post cooling vanes with exotic curved vanes.

Track Pack brake rotors draw in from the center, near the hub. The curved vanes then work to pump air outward, cooling the rotor surfaces in a more active manner compared to the passive airflow in a conventional thin-post rotor.

"A customer's perception of the brake system depends very much on the way the driver uses the car," notes Graham Henckel, Chief Engineer of the SRT Viper. "The faster you go, the greater the advantage."

Track Pack brakes are designed to be especially effective on the track in the 100 mph-plus range. At slower speeds, the cooling advantage dissipates to fall back in line with the standard car. However, the Track Pack's weight advantage is realized at any speed: at eight pounds less per rotor, the Track Pack brake setup is 32 pounds lighter than in the standard car. Factor in the lightweight wheels and lightweight tires, and the weight savings is considerable: in the most optimal case, Track Pack owners will save 62 pounds of unsprung weight compared to a standard SRT Viper.

Reducing unsprung weight pays dividends in triplicate on the track. Unsprung weight must be carefully managed to ensure optimal cornering and launch characteristics. The less unsprung weight a vehicle carries, the less damping is required to keep the tires in contact with the road surface. Reducing rotational inertia also means reducing the amount of work that must be done to get the wheels, tires and brake rotors up to speed when launching.

To an engineer, it's simple physics. To an SRT Viper Track Pack customer, it's simply incredible.

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