Porsche GT3 RS-R
New 911 GT3 RSR to ensure leading position in near-standard GT Sport
For the upcoming racing season Porsche Motorsport presents the 911 GT3 RSR. This near-standard racing sportscar aims to keep private customer teams competitive in international Gran Turismo sport and to continue the success of the predecessor model which won its class at the Le Mans 24 Hours five times in succession, became a record and title winner in the American Le Mans Series as well as the FIA GT Championship, and secured the overall win at this year's Daytona 24 Hour race.
Based on the new road-going 911 GT3 RS, a particularly light and sporty version of the 911 which was presented to the public at the Frankfurt Motor Show (IAA), the GT3 RSR features improvements to its predecessor in all key areas. The vehicle is available in an ACO (Automobile Club de l`Ouest) version for competing in Le Mans and in the American Le Mans Series as well as in a FIA specification.
The 911 GT3 RSR features a modified front which improves downforce at the front axle.
The 3.6-litre, six-cylinder boxer engine delivers 445 hp at 8,250 revs. Maximum torque is now 405 Nm at 7,200 rpm, with top revs reached at 8,500 (for the FIA specification with two 30.8 mm air restrictors). New pistons and rods as well as a new valve gear result in a moderate power increase with the focus on further-improved driveability and durability. A characteristic feature of the new RSR is its air-inlet which generates ram pressure.
A six speed sequential gearbox with ignition cut ensures quick gearshifts at full throttle and offers reliable protection of the gearbox from misuse.
The racing suspension, with McPherson struts in the front and the Porsche multi-link axle at the rear, features new kinematics thanks to new wheel-uprights and modified mounting points. Further improved turning in and reduced tyre wear are the most obvious results of these modifications. The double springs adjustable to four settings, the adjustable shock absorbers and anti-roll bars as well as unibal joints ensure a precise set-up to suit each circuit.
The brake system features four-piston aluminium callipers on all four wheels with discs measuring 380 mm diameter in the front and 355 mm at the rear.
Weighing 1,100 kgs (FIA specification) or 1,115 kgs (ACO spec) the 911 GT3 RSR sits at the minimum weight limit. Porsche offers various kits for different competition purposes. Porsche Motorsport will deliver the first vehicles in December.
Technical Description
Bodywork
Weight optimised, widened 911 GT3 RS chassis
Carbon Kevlar components: rear section and spoiler, rear section, luggage compartment hood, rear lid with wing, front mudguard, rear mudguard extension, doors with windows and frames, rear window
Racing bucket seat with six-point seat belt with fire retardant upholstery, adapted for use of HANS
removable steering wheel (with quick-connect coupling)
Fire extinguishing system
three-point air jack system
welded-in roll cage (in accordance with FIA-Regulations 2004)
100 litre FT3 safety fuel cell with quick refuelling system
Air jack system
Aerodynamically optimized front, rear, side sills
Adjustable rear wing
weight optimized and widened 911 GT3 RS (street-legal version) chassis (add-on parts made out of carbon/cevlar fibre)
Engine
Water-cooled six-cylinder boxer engine in rear, four valves per cylinder
3,598 cc, stroke 76.4 mm, bore 99,99 mm
ca. 445 hp (327 kW) at 8,250 rpm*
Max. torque 405 Nm at 7,200 rpm
Max. revs: 8,500 rpm
with 2 x 30.8 mm dia. restrictors in FIA version (2 x 29.2 mm dia. in ACO version; power ratings in ACO version at request)
Titanium valves (ACO) and connecting rods
intake manifold with single throttle valve
Dry-sump lubrication with water-oil heat-exchanger
Sequential fuel injection (Bosch)
Bosch MS 3.1 electronic engine management system with knock control
race exhaust: multiple pipe manifold, open exhaust, no catalytic converter (rear exhaust muffler retrofit)
Fuel: Superplus Unleaded, 98 ROZ
Electric System
Bosch MS 3.1 engine management
Motec display with integrated data recording
battery: 12 Volt, 50 Ah
additional ventilation for driver (fan)
120 Ah generator
Power Train
Straight-toothed dog-type constant mesh countershaft sequential gearbox
„In-line“ shift mechanism, sensor controlled traction interruption
gear ratios: ring & pinion gear 8/32
1st gear 12/38
2nd gear 15/32
3rd gear 18/31
4th gear 20/29
5th gear 21/26
6th gear 24/26
Rear-wheel drive
single-mass flywheel with triple-disc carbon fibre race clutch
Limited slip differential 40/60 percent
Oil-water heat-exchanger
Suspension
McPherson front axle with ball joints and corresponding changes of kinematics (according to ACO or FIA-Regulations)
multilink rear suspension with ball joints and corresponding changes of kinematics (according to ACO or FIA-Regulations)
Adjustable anti-roll bars front and rear
Double coil springs all round, adjustable in four positions
Sachs gas-pressure shock absorbers, adjustable ride height, compression, rebound
Height, camber and track continuously variable adjustable
suspension continuously adjustable (heights, camber, track)
All struts with Unibal joints
Rims, central locking (self-locking: FIA version, Splint: ACO version)
Front 10J x 18 ET 15
Rear 11H x 18 ET 16
electronical power steering
Rims/Tyres
Front axle
three-piece BBS aluminium rims (10J x 18 ET 1,5)
with central, self-locking wheel nuts in FIA version
(central wheel nuts with pin locking device in ACO version)
Michelin rain tyres 24/64-18
Rear axle
three-piece BBS aluminium rims (11J x 18 ET 16)
with central, self-locking wheel nuts in FIA version
(central wheel nuts with pin locking device in ACO version)
Michelin rain tyres 27/68-18
Brakes
Brake-power distribution with brake balance adjustment
without ABS, brake force balance adjustable by brake balance bar
four-piston brake caliper in the front, internally vented discs
brake disc diameter: 380 mm, race brake pads
four-piston brake caliper in the rear, internally vented discs
brake disc diameter: 355 mm, race brake pads
Weight
1,100 kilograms (FIA version)
1,115 kilograms (ACO version with flat underbody and diffuser)
Price without extras
279,000 Euro excluding tax
