Diving Club

USAC

Pirelli World Sports Car Challenge

Purpose: The purpose of the Pirelli World Challenge® Championships is to provide teams, manufacturers and aftermarket suppliers a competitive production-based race series in which to prove their products. Television: races are aired in tape delayed shows on NBC sports. Additionally all races are available to watch live streaming at www.world-challengeTV.com

Race Length: There is a 50-minute maximum time limit for every race, with the number of laps and total distance being determined by track configuration, lap times and race conditions.

Homologation of Vehicles: In addition to the general series rules that apply to all homologated vehicles, each vehicle model that is homologated into the Pirelli World Challenge Series has a set of specifications assigned to it on a Vehicle Technical Specification sheet (VTS) in order to give equivalent overall performance capabilities to a wide range of vehicles. Adjustments to a vehicle’s VTS sheet will be made until a competitive package is developed. Vehicles may be submitted for homologation up to a year before it goes on general sale to the public, and until that particular body style goes out of production throughout the world.

Eligibility: Cars that have been homologated for competition in the Pirelli World Challenge Series are eligible for a full-year of competition from the time it is homologated, until that particular body style has been out of production throughout the world for four (4) years. After a body style has been out of production for four (4) years, it may continue to compete in no more than five (5) races total with a single driver, for an additional three (3) years.

Competition Adjustments: In order to keep the competition close within the Pirelli World Challenge series, competition adjustments will be made to a vehicle model when deemed necessary. Competition adjustments will primarily be done through adjustments to the base weight, the engine speed limit and/or the required restrictor size.

IMSA

Continental Tire SportsCar Challenge

From the showroom to the speedway, the IMSA Continental Tire SportsCar Challenge is IMSA’s showcase for the latest in American-made and imported high performance sports cars, coupes and sedans straight from the dealer showroom floor. With modifications permitted only in the area of safety and competition, the Continental Tire Challenge is home to the same cars seen on streets and highways around the world every day. Racing takes place in three classes, Grand Sport (GS), Touring Car (TCR) and Street Tuner (ST), with the series running a 10-race schedule in tandem with the WeatherTech Championship.

The IMSA Continental Tire SportsCar Challenge features sports cars from worldwide manufacturers, straight from the showroom floor, raced side-by-side with only minor modifications. The Continental Tire Challenge has three different classes:

Grand Sport (GS) - As with all Continental Tire Challenge cars, GS cars start out as stock, production model cars that race with only minor modifications. Following the introduction of GT4 specifications, a wealth of manufacturers like Audi, BMW, Chevrolet, Ford, McLaren, Mercedes-AMG and Porsche have flocked to the class. The engines are tuned to produce between 400 and 500 horsepower and are capable of reaching speeds up to 175 mph.

Touring Car (TCR) - The new-for-2018 TCR class is intermediate in performance to GS and ST. Manufacturers such as Alfa Romeo, Audi, Honda and Volkswagen take to the track in four- or five-door production model cars that only have minor modifications and follow universal specifications. The engines are tuned to produce between 300 and 350 horsepower and are capable of reaching speeds up to 155 mph. For more information on TCR, click here.

Street Tuner (ST) - The history and number of manufacturers that have participated in the ST class is unparalleled. ST also has often been an avenue for drivers to begin their climb up the IMSA ladder. These cars, again production-based, use many of the same stock parts one would find on a passenger car. The engines are tuned to produce between 220 and 280 horsepower and are capable of reaching speeds up to 150 mph.