Porsche - 911 GT3 RSR (Type 997)

911 GT3 RSR (Type 997)

The Porsche 911 GT3 RSR is ready to race. The top model of Porsche Motorsport’s customer racing vehicles will head into the next season with extensive modifications. Built to conform to the A.C.O. “LM” GTE regulations, the 911 represents the crowning pinnacle of a range of successful customer sport race cars that are based on the 997 type 911 GT3 RS street sports car.

Powering the 911 GT3 RSR is a particularly efficient six-cylinder boxer engine with a four-litre capacity. With a mandatory air-restrictor, it generates 470 hp (331 kW) and drives the 310 millimetre wide rear wheels. The diameter of the front wheels has increased by 30 mm to now measure 680 millimetres. The Porsche sequential six-speed gearbox is operated via paddle shifts on the steering wheel.

The nose and rear panels are adapted to the flared front and rear wheel arches, as are the door sill and the wheel arch coverings. The aerodynamic concept is complemented by a new ducting of the intake air. Openings in the rear side sections, as known from the turbo variants of the Porsche 911, replace the air scoop on the engine hood, which is very similar to the 911 GT2 RS street sports car.

The 911 GT3 RSR can be raced at the Le Mans 24 Hours, the FIA World Endurance Championship, the Le Mans Series as well as the International GT Open and in other series and races.

The Porsche 911 GT3 RSR will be delivered to customer squads around the world.

Engine

  • Normally aspirated engine with intake above rear side panel
  • Water-cooled six cylinder Boxer engine with four-valve technology
  • Displacement 3,996 cc; stroke 80.4 mm; bore 102.7 mm
  • Maximum power: 338 kW (460 PS) with restrictors 2 x 28.9 mm (subject to BoP)
  • Fuel quality: Super plus lead free, 98 RON
  • Dry sump lubrication
  • Multi-point fuel injection (sequential)
  • Returnless fuel system
  • Light weight modular race exhaust system
  • End muffler with twin, centrally aligned tail pipes
  • Thermostat

Transmission

  • Porsche 6-speed sequential dog gearbox with pneumatically activated shift mechanism, active oil cooling and internal pressurized oil lubrication system
  • Gear ratios:
    Drop Gear 25/32 i = 1.280
    CW & P 09/26 i = 2.889
    1st gear 13/41 i = 3.154
    2nd gear 17/39 i = 2.294
    3rd gear 19/36 i = 1.895
    4th gear 22/35 i = 1.591
    5th gear 23/31 i = 1.348
    6th gear 25/29 i = 1.160
  • Mechanical limited slip differential 45% drive / 65% braking/overrun
  • Single mass flywheel
  • Race clutch (5½“ triple plate carbon clutch)
  • Hydraulically operated release bearing
  • Oil-water heat exchanger

Bodywork

  • Lightweight, widened chassis (based on second generation 911 GT3 RS) using add-on carbon parts
  • Welded roll-over cage
  • Carbon-fibre kevlar add-on parts:
    Bumper panels with front spoiler
    Air intake and exit ducts for centre cooler and side coolers
    Front cover with louvers for centre cooler air exit
    Fenders and inner wheel arch liners
    Widened side skirts
    Doors with side-screen frame and plastic mirrors
    Rear wheel arch extensions with side intake air duct
    Rear inner wheel arch liners
    Rear cover with adjustable rear wing
    Rear panels with wheel arch ventilation
  • Closed flat bottom with rear diffuser
  • Removable rear windscreen
  • Pedal box
  • Air-jack system with safety pressure valve
  • Race bucket-seat (driver side only) with fire-retardant upholstered cover
  • Six-point safety harness modified for use with HANS
  • Multi-function removable steering wheel with quick release coupling
  • Electrically activated fire extinguisher system
  • 90 litter fuel cell (FT3 safety cell)

Suspension

Front axle:

  • McPherson spring strut axle with adjustable spring/dampers, adjustable ride height
  • Adjustable 4-way Sachs gas pressure dampers (through rod)
  • Twin coil springs (main and helper spring)
  • Infinitely adjustable spring platform
  • Camber adjustment on lower wishbone
  • Both anti-roll bar blades adjustable with adapted stiffness
  • Strengthened front cross member with adjustable wishbone mounting
  • Infinitely adjustable toe-rod
  • Electro-hydraulic servo assisted steering
  • Forged strut mounting

Rear axle:

  • Multi-link rear axle with rigidly mounted cross member and adjustable spring/damper set-up, adjustable ride-height
  • Adjustable 4-way upside down Sachs gas pressure dampers (through rod)
  • Twin coil springs (main and helper spring)
  • Infinitely adjustable spring platform
  • Forged, two-piece lower wishbone with integrated camber adjustmen
  • Infinitely adjustable strengthened rear toe-rod
  • Both anti-roll bar blades adjustable with adapted stiffness

Brake system

Dual circuit brake system, adjustable via balance bar

Front axle:

  • Single piece, fixed six piston aluminium caliper
  • Ventilated steel brake discs, D = 380mm
  • Race brake pads
  • Optimized brake cooling ducts

Rear axle:

  • Single piece, fixed four piston aluminium caliper
  • Ventilated steel brake discs, D = 355mm
  • Race brake pads
  • Optimized brake cooling ducts

Wheels/tires

Front axle:

  • 3-piece, bolted light-alloy wheels (BBS) 12J x 18, 9 offset. Centre-lock nut
  • Michelin tyres, tyre dimensions: 30/68-18

Rear axle:

  • 3-piece, bolted light-alloy wheels (BBS) 13J x 18, 12.5 offset. Centre-lock nut
  • Michelin tyres, tyre dimensions: 31/71-18

Electrics

  • Motec display with integrated data logging
  • Motec PDM - programmable multi-function electrical system control unit
  • Motec SLM - multi-function display with integrated gear shift lights
  • Bosch MS 4.0 - engine control unit
  • Megaline - Paddle shift => paddles integrated into steering wheel
  • Electrically adjustable mirrors with memory function
  • Bosch memory for WINdarab data logging (without licence)
  • External LCD oil level indicator
  • Heated front windscreen
  • Battery: 12 V, 80 Ah
  • 140 A alternator
  • LED rear lights
  • Rain light integrated into rear cover
  • Light weight car wiring loom (prepared for ACO data logging)
  • Air conditioning system

Weight

  • Weight: Approx. 1.220 kg