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2007 GT3 RSR specfications

Concept

Porsche 911 GT3 RSR
single-seated GT race vehicle.
in accordance with the 2006 ACO LMGT2 Regulations and the 2006 FIA Article 257 (Technical Regulations for Series Grand Touring Cars).
basis: Model Year 2007 Porsche 911 GT3 RS (997; street legal version).
homologated from January 2007 onwards

Engine

Six-cylinder aluminum boxer engine, water-cooled.
3,795 cc, stroke 76.4 mm, bore 102.7 mm.
max. power: 358 kW (485 bhp) at 8,400 rpm.
max. torque: 435 Nm at 7,250 rpm.
air restrictors 2 x 30.3 mm.
max. rpm: 9,000 rpm.
four-valve cylinder heads.
oil-water heat exchanger.
dry-sump lubrication system with engine mounted dry-sump tank made from carbon fiber.
oil and cooling water refilling system.
intake manifold made of carbon fiber with dual air restrictors and single throttle per cylinder, dual restrictor.
electronic engine management system BOSCH MS 4.0.
required fuel quality: 98 octane ROZ, unleaded
race exhaust: multiple pipe manifold, open exhaust, no catalytic converter

Power Train

Six-speed sequential dog type manual transmission, straight cut gears re-designed for optimized drive shaft angle.
"in-line" shift mechanism, sensor controlled traction interruption.
oil-water heat exchanger.
single-mass flywheel with triple-disc race clutch.
limited slip differential 40/60%.
rear-wheel drive.

Bodywork

weight optimized and widened 911 GT3 RS chassis (add-on parts made from carbon/kevlar fiber)
welded-in roll cage.
racing seat (driver side only) with fire retardant upholstery, weight optimized
six-point seat belt, prepared for using HANS Safety System (Head And Neck Support System).
three-point air jack system.
aerodynamically optimized front and rear part.
flat underbody made from carbon fiber.
adjustable rear wing.
removable steering wheel (quick-connect coupling).
fire extinguishing system.
100 litre FT3 safety fuel tank with quick refuelling system.

Vehicle Weight

approx. 1,225 kg

Suspension

McPherson front axle with unibal joints and corresponding changes of kinematics
adjustable front roll bar, blade type
power steering
multilink rear suspension with unibal joints and corresponding changes of kinematics
adjustable rear roll bar, blade type
double coil springs in front and rear adjustable in four different positions
front and rear struts with adjustable Sachs shock absorbers
suspension continuously adjustable (heights, camber, track)

Rims/Tires

Front axle: three-piece BBS light aluminium rims 11J x 18 with central locking wheel nuts
Rain tires 27/65-18
Rear Axle: three-piece BBS light aluminium rims 13J x 18 with central locking wheel nuts
Rain tires 31/71-18

Brake System

without ABS, dual master cylinders, brake force balance adjustable by bias bar system
six-piston fixed brake callipers in the front
weight-optimized internally vented brake discs; 380 mm diameter
four-piston fixed brake callipers in the rear
weight-optimized internally vented brake discs; 355 mm diameter

Electrics

Bosch MS 4.0 engine management
Motec display with integrated data recording
battery: 12 Volt, 50 Ah
additional ventilation for driver (fan)
110 Ah generator
wiring harness prepared to accept A.C.O. stack data logging system

Background

The Porsche 911 GT3 RSR (type 997) is in compliance with the 2006 Le Mans GT2 regulations of the Automobile Club de l'Ouest (A. C. O.) as well as the regulations of the international automobile assembly FIA for Series Grand Touring Cars, thus enabling the participation in various racing series.

The new design adopts the meanwhile typical face of the 997 series. Due to body work optimizations, the Porsche 911 GT3 RSR (type 997) dispose of improved aerodynamics and a 10 percent increased stiffness. At the same time, the centre of gravity has been lowered significantly. Wider rear fenders and a wider rear track for rear wheels up to 14 inches enhance the performance capabilities of this new racing car and make it competitive against rivals like Ferrari, Panoz and Spyker. The 3,8 litre engine produces 485 hp at a maximum torque of 435 Nm.

Additionally, the new RSR convinces through re-designed, service- and driver-friendly electronics.

Performance and reliability remain the outstanding characteristics of the 911 GT3 RSR, which was built also and especially for the insertion in long-distance racing, e. g. at the famous Le Mans 24 Hours.

The vehicle can not be approved for road use. Each customer is solely responsible for observing the regulations relevant to himself and his car.

Notable Victories

Winner International GT Open Championship
1st place Le Mans 24 Hours (GT2 class)
1st place N¸rburgring 24 Hours (overall win)
1st place Spa 24 Hours (GT2 class)
1st place Petit Le Mans (GT2 class)
1st place Mil Milhas Sao Paulo (GT2 class)

2007 GT3 RSR

Porsche press photos.


2007 GT3 RSR - Tafel Racing

Tafel spent a tremendous amount of time and money towards improvements. Some of their work found its way to the 08 RSR. Notice dive planes on front bumper below.