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2004 GT3 RSR specfications
Concept
Porsche 911 GT3 RSR
single-seated, near-standard race vehicle
in accordance with FIA-Regulations (or ACO-Regulations)
basis: 2004 Porsche 911 GT3 RS (street-legal version), homologated from spring
2004 onwards
Engine
flat six-cylinder boxer engine, water-cooled
3.598 cc, stroke 76.4 mm, bore 99.99 mm dia.
max. torque: 405 Nm at 7.200 rpm
max. power: 327 kW (445 BHP) at 8.250 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)
max. rpm: 8.500 rpm
four-valve technology
oil-cooler (oil-water heat exchanger)
dry-sump lubrication
oil and cooling water quick refilling system
intake manifold with single throttle valve
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 (rear exhaust muffler retrofit)
Power Train
sequential six-speed dog type transmission,
straight cut gear
"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
oil-water heat exchanger
single-mass flywheel with triple-disc carbon fibre race clutch
limited slip differential 40/60 per cent
rear-wheel drive
Bodywork
weight optimized and widened 911
GT3 RS (street-legal version) chassis (add-on parts made out of carbon/cevlar
fibre)
welded-in roll cage (in accordance with FIA-Regulations 2004)
three-point air jack system
aerodynamically optimized front and rear end aerodynamically optimized side
sills
adjustable rear wing
racing bucket seat (driver side only)
with fire retardant upholstery
six-point seat belt, prepared for using HANS Safety System
removable steering wheel (with quick-connect coupling) fire extinguishing
system
100 litre FT3 safety fuel cell with quick refuelling system
Vehicle Weight
approx.. 1,100 kg
Suspension
McPherson front axle with ball joints
and corresponding changes of kinematics (according to ACO or FIA-Regulations)
adjustable front roll bar, blade type
power steering
multilink rear suspension with ball joints and corresponding changes of kinematics
(according to ACO or FIA-Regulations)
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
alloy rims (10J x 18 ET 1,5) with central, self-locking wheel nuts
Michelin rain tyres 24/64-18
Rear axle: three-piece BBS light alloy rims (11J x 18 ET 16) with central,
self-locking wheel nuts
Michelin rain tyres 27/68-18
(central wheel nuts with pin locking device in ACO version)
Brake System
without ABS, brake force balance
adjustable by brake balance bar
four-piston fixed brake caliper in the front, internally vented discs, brake
disc diameter: 380 mm, race brake pads
four-piston fixed brake caliper in the rear, internally vented discs, brake
disc diameter: 355 mm, race brake pads
Electrics
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
2004-5 Production Figure - 27 cars
