Porsche 911 GT3 Details

Press Release

Carefully tuned aerodynamic package The Porsche GT3 Cup racing program helped develop the car’s aerodynamic package. The GT3 has a 0.30 coefficient of drag. While this is the same figure as the previous generation GT3, lift forces on the front and rear axle have been reduced through a redesigned nose, side sills and rear spoiler. A 1.5-inch deep “lip� spoiler around the front of the car significantly reduces airflow beneath the GT3. The position of the air vents guides most of the air coming out of the radiators directly to the brake system instead of beneath the car, where it could create unwanted lift. Airflow around the rear wheels is improved by the aerodynamically optimized side sill covers as well as the wheel spoilers. As with all Porsche 911 models, the underflow of the GT3 is covered from the front axle to the engine by three large composite panels that enhance streamlining. These panels also enhance component cooling with vent openings at appropriate points. The new rear wing also provides new efficiencies. For racetrack events, the rear wing can be set to three different positions to match the aerodynamic balance to the specific track conditions. Low center of gravity The GT3 rides on firmer springs, shocks and anti-roll bars. The anti-roll bars are adjustable and the suspension system is compatible with the use of race springs to fit various track requirements. On the front, outside thread damper legs and height-adjustable spring plates provide the possibility for fine adjustments needed on the racetrack. At the rear, the anti-roll bars have four adjustment settings and the damper leg features a single-sleeve gas pressure damper for firmer response in compression and rebound modes. For competition driving, the rear suspension is built to accept outside thread damper legs and height-adjustable spring plates just like those on the front of the car. Support bearings have a single ball joint resting on metal, not rubber. This allows precise damper piston pin mounting with only a minimal influence on axle kinematics when springs are compressed. This design also provides two assembly positions for the different camber of road and race tires. Limited-slip rear axle The GT3 is equipped with an asymmetric-control limited-slip differential. To get the engine’s power safely to the road in a standing start, slip is limited to 40 percent. Once under power, the slip factor changes to 60 percent because the engine no longer is operating at its maximum torque and also because this configuration helps minimize oversteer under load changes through a turn. Wheels and tires matched to car’s potential Eighteen-inch wheels have the GT3 logo on their hub covers. Front wheels are 8.5 inches wide and the rear rims are 11 inches wide. Tires are 235/40 ZR 18 in front and 295/30 ZR 18 in the rear. Ceramic brake discs available The GT3’s stopping power can be further enhanced with optional Porsche Ceramic Composite Brakes (PCCB) that are 50 percent lighter and reduce unsprung weight by nearly 40 pounds. The optional setup features cross-drilled, inner-vented ceramic discs and special brake linings. PCCB offers advantages in both high- and low-speed braking. Compared to metal brake discs, abrasion is extremely low because of the very hard surface of the ceramic discs. This means a longer service life. Ceramic discs also are immune to corrosion. ABS is the GT3’s only electronic dynamic control The only electronic control system fitted to the 911 GT3 is the anti-lock braking system with intervention parameters matched to the car’s chassis and suspension settings. Interior designed to be efficient The GT3’s interior comes in a basic black color, with plastic components covered in a soft black paint and black alcantara lining covering the roof. The door trim, rear carpet, hand brake lever handle and the tachometer all feature the GT logo. Thanks to the car’s free-spinning engine, the green area on the tachometer extends to 8,200 rpm. The two bucket seats are well bolstered and covered in black leather. The seats weigh some 20 pounds less than the standard 911 Carrera seats, and another 17 pounds is saved by the lack of a rear-seating surface. The three-spoke steering wheel can be telescoped as much as 1.6 inches for precise positioning for various drivers. Standard equipment also includes driver and passenger front and side airbags as well as power windows, remote locks and an alarm system. Air conditioning and radio with in-dash CD are also standard. The GT3 also can be equipped with bi-xenon headlights. Extensive warranty Every new Porsche car sold in the United States and Canada is covered by a four-year/50,000-mile (80,000 kilometer), bumper-to-bumper limited warranty, which includes Porsche’s roadside assistance program. The galvanized body and 26-step paint and anti-corrosion process enable Porsche to warrant each car against rust perforation for 10 years and unlimited mileage. In addition, Porsche guarantees the paint finish for three years – also without a mileage limitation.