2003 Porsche 911 GT3 RS (type 996 RSR)

One of 20 996 GT3 RS cars built by the factory in 2003, which is the least of the entire 996 GT3R/RS/RSR race car series from 1999-2005. Delivered new to  Zip Racing and owned by team its whole life. Seen in the Hazardous Sports livery in the ALMS for the 2003 season. This car ran only 6 races during the 2003 season, and its last professional on track performance was Sept. 2003 at the ALMS Miami event. 

Primarily driven by Spencer Pumpelly and Andy Lally for the 2003 season and occasionally joined by team principle Steve Ivankovich, the Hazardous Sports sponsored cars were always fan favorites at the time, not unlike Falken Tire has been in more recent years. The distinctive Hazardous Sports cars were also unique in that they are the only Porsche 996 GT3RS / GT3R cars to run forged one-piece OZ Racing wheels. 

Other listed drivers include Emil Assentato, Nick Longhi, Brent Sherman and Romeo Kapudija.

After retirement the car was stored at Lüfteknic until it was sold to a customer a couple of years later. We continued to care for the car until that customer moved onto a Riley Daytona Prototype car for track events, and we had the opportunity to purchase it. Since it ran professionally we converted the car to sequential shift and rebuilt the motor to 3.8L after it dropped a valve on track. We also rebuilt the transmission after a differential case failure. 

Lüfteknic, through shop principle Robert Overholser, has been involved in the life of the orange Hazardous car since the very beginning. Robert worked for the ZIP Racing team late in the 2003 season, and returned in 2005 to assist in fielding the sister car at the 12 Hours of Sebring. That car, an updated 2000 model usually known as the ‘black car’ as this is the ‘orange car’, has already been restored to period 2005 livery by Tyler Stewart Motorports and is campaigned regularly in HSR vintage events.

This 2003 GT3 RS is undoubtedly one of the best known preserved examples of an early water-cooled Porsche GT racing car. It is still wearing original paint and nearly all the original body panels as it did when competing in the ALMS against cars from Alex Job Racing, Peterson / White Lightning, Risi Competizione, P.K. Sport, TRG and other well known teams. The vehicle chassis, cage, brakes, engine case, transmission case, wheels and even the seat and steering wheel are still original pieces as delivered from Porsche. 

This GT3 RS is currently undergoing a moderate to light restoration to as-ran historic livery and dress. Ultimately we want to preserve the car as best we can as an example of the car as it ran, but we are careful not to over-restore the car. It is not a show piece, but a piece of racing history, and we hope to return the car to the track in the near future. 


-Chassis: Factory built 2003 911 type 996 GT3 RS – WP0ZZZ99Z3S692062. Weight optimized and widened 911 chassis with fiberglass rear fender flares (front end, front lid, front fenders, doors, rear lid, rear window anddade and rear end made out of carbon/kevlar fibre) welded-in roll cage three-point air jack system, aerodynamically optimized front and rear part aerodynamically optimized side sills adjustable rear wing racing bucket seat (driver side only) with fire retardant, upholstery, six-point seat belt, removable steering wheel (quick-connect coupling), fire extinguishing system 100 litre FT3 safety fuel tank with quick refueling system. Bosch MS 3.1 engine management Motec display with integrated data recording.

-Drivetrain: Rebuilt by Lüfteknic to 3.8L, unrestricted. Originally rated to 435 BHP at 8,250 rpm with use of 2 x 30.8 mm dia. restrictors, max. rpm: 8.500 rpm four-valve technology, oil-cooler (oil-water heat exchanger), dry-sump lubrication under pressure oil, and cooling water refilling system , intake manifold with single throttle valve, with 2 x 30.8 mm dia. restrictor , electronic engine management system MS 3.1 Bosch MS 3.1 fuel injection with ignition control, required fuel quality: 98 octane ROZ, unleaded, race exhaust: multiple pipe manifold, open exhaust, no catalytic converter.

Six-speed manual transmission, gear ratios (as delivered): ring & pinion gear 7/35, 1st gear 13/41, 2nd gear 20/40 , 3rd gear 25/39, 4th gear 29/36, 5th gear 32/33, 6th gear 35/30, oil-water heat exchanger, single-mass flywheel with douple-disc race clutch, limited slip differential 40/60 per cent, rear-wheel drive. Car currently has Daytona gear set and sequential shifter conversion. 

-Suspension:  Upgraded to Moton suspension from SACHS factory equipped coil over suspension. McPherson front axle with ball joints and corresponding changes of kinematics (according to ACO or FIA-Regulations) front roll bar, adjustable lever arm system power steering multilink rear suspension with ball joints and corresponding changes of kinematics (according to ACO or FIA-Regulations) rear roll bar, adjustable lever arm system double coil springs in front and rear adjustable in four different positions front and rear struts with adjustable Sachs shock absorbers suspension continuously variable adjustable (heights, camber, track).

-Brakes: Without ABS, brake force balance adjustable by brake balance bar, four-piston fixed Brembo brake caliper in the front, internally vented discs, brake disc diameter: 380 mm, race brake pads , four-piston fixed Brembo brake caliper in the rear, internally vented discs, brake disc diameter: 355 mm, race brake pads.

-Wheels: Front axle: One piece forged OZ Racing (10J x 18 ET 1,5) with central, self-locking wheel nuts, 250/650mm slick tires. Rear axle: One piece forged OZ Racing (11J x 18 ET 16) with central, self-locking wheel nuts, 280/680 slick tires. Additional spare set of OZ Racing wheels equipped with rain tires. 

Return to projects

Return to projects