911 GT3 R

911 GT3 R

Concept
 • Single-seat customer racecar
 • Basis: 991 GT3 RS

Engine
 • Water cooled six-cylinder Boxer engine (rear mounted)
 • 4,000 cm3; stroke 81.5 mm; bore 102 mm
 • Power: Subject to FIA BoP classification (air restrictor)
 • Single mass flywheel
 • Four-valve technology
 • Direct fuel injection
 • Fuel quality: Super Plus lead free to E20 (minimum 98 octane)
 • Dry sump lubrication
 • Engine control unit (ECU) BOSCH MS 6.4 with integrated data acquisition (basic memory 1GB, max. 100 freely selectable channels, sample rate 50hz)
 • Race exhaust system (motorsport catalyst and country-specific pre-silencer available)
 • Rear silencer with twin tailpipes mounted centrally
 • Two electronically activated throttles

Transmission
 • Porsche six-speed constant-mesh gearbox (sequential)
 • Gear ratios (FIA homologated, other ratios available on request):
    CWP 14/22 i = 1.571
    Final drive 17/41 i = 2.412
    1st gear 13/41 i = 3.154
    2nd gear 17/39 i = 2.294
    3rd gear 20/37 i = 1.850
    4th gear 19/29 i = 1.526
    5th gear 24/31 i = 1.292
    6th gear 31/34 i = 1.097
 • Internal pressurized oil lubrication with active oil cooling by oil/water heat exchanger
 • Mechanical limited slip differential
 • Motorsport clutch (carbon)
 • Pneumatic gear shift activation (paddle shift)

Bodyshell
 • Lightweight body featuring intelligent aluminum-steel composite design
 • Integrated (welded) roll-cage (according to FIA Appendix J)
 • Front cover with two air intake ducts for cockpit ventilation, quick release fasteners
 • Removable escape hatch in roof in accordance with latest FIA safety regulations
 • Pickup point for lifting device (identical to DTM system)
 • Lightweight design exterior panels:
 • CFRP doors with sport design mirrors
 • CFRP rear cover with quick release fasteners
 • CFRP adjustable rear wing
 • CFRP front extended wheel arches and louvres
 • CFRP front fairing with cooling-air ducting and spoiler lip
 • CFRP rear fairing with integrated rain light in accordance with FIA regulations
 • Polycarbonate front, rear and side screens
 • Removable polycarbonate door windows in accordance with latest FIA safety regulations
 • Rear underfloor with air ducting for brake and driveshaft cooling
 • Modified 911 cockpit:
 • Ergonomic center console aligned towards driver for ease of operation
 • Switch covers with fluorescent labelling
 • Steering wheel with quick release coupling, switch panel and shift paddles
 • Racing bucket seat with fore/aft adjustment in accordance with FIA standard 8862/2009:
 • Adjustable padding system to suit individual drivers (delivery with size M)
 • Six-point safety harness
 • FT3 safety fuel cell (approx. 120 liter) with fuel cut off safety valve in accordance with FIA regulations
 • Air jack system (four jacks)

Suspension

Front axle
 • McPherson strut, adjustable in height (ride-height), camber and toe
 • Fabricated steel control arms:
 • Stiffness optimized
 • High-performance spherical bearings
 • Wheel hubs with center lock wheel nuts
 • Adjustable motorsport dampers
 • Machined aluminum top mount with camber adjustment
 • Adjustable anti-roll bar blades (left & right)
 • Power assisted steering with electrohydraulic pressure feed

Rear axle
 • Multilink independent rear suspension, adjustable in height (ride-height), camber, toe
 • Machined aluminum control arms:
 • Stiffness optimized
 • High-performance spherical bearings
 • Wheel hubs with center lock wheel nuts
 • Adjustable motorsport dampers
 • Machined aluminum mounts
 • Adjustable anti-roll bar blades (left & right)

Brake system
 • Two separate brake-circuits for front and rear axles. Adjustable by driver via brake balance bar system

Front axle
 • Six-piston aluminum-monobloc racing brake caliper
 • Ventilated and grooved steel brake disc D = 380 mm, aluminum disc bell
 • Motorsport brake pads
 • Optimized brake cooling ducts

Rear axle
 • Four-piston aluminum-monobloc racing brake caliper
 • Ventilated and grooved steel brake disc D = 372 mm, aluminum disc bell
 • Motorsport brake pads
 • Optimized brake cooling ducts

Wheels/tires

Front axle
 • One piece BBS alloy wheels according to Porsche specification and design,
 • 12.0 x 18 offset 17
 • Michelin transport tires, tire dimensions: 300/650-18

Rear axle
 • One piece BBS alloy wheels according to Porsche specification and design,
 • 13.0 x 18 offset 37.5
 • Michelin transport tires, tire dimensions: 310/710-18

Electric

 • COSWORTH color display ICD (basic memory 512MB, extendable)
 • COSWORTH power module IPS32
 • Race ABS
 • Traction control
 • Fire extinguisher system (agent: gas)
 • Battery 12 V, 70 Ah (AGM), leak proof, mounted in passenger foot well
 • 180 A alternator
 • Windscreen wiper with direct drive

Lighting system
 • Xenon main headlights
 • LED technology taillights and rain light

Options

Endurance kit
 • 4x Xenon extra headlights in front fairing
 • Engine oil quick refill

PAG options
 • COSWORTH ICD memory expansion (1024MB memory)
 • Mini IPS (expansion connections for high-current consumers)
 • BOSCH MS 6.4
 • Option 1: channel expansion for internal data acquisition to maximum 720 freely selectable channels, highest resolution data sample rate 1000Hz
 • Option 2: data copy from data acquisition from internal memory onto an external USB stick
 • Country-specific race catalyst
 • Illuminated start number panels
 • TPMS System
 • Cockpit illumination

Color
 • Body painted with water-soluble paint (white C9A)
 • Interior: white primer with clear-coat finish
 • Body parts in plain carbon (front & rear fairings, front cover, rear cover, doors, wheel arches, rear wing)

911 GT3 Cup

911 GT3 Cup

Concept
 • Single-seated, near-standard race  vehicle
 • Based on the 911 GT3

Engine
 • Aluminum six-cylinder rear-mounted boxer engine
 • Sealed
 • 3,800 cc; stroke 76.4 mm; bore 102.7 mm
 • Max. power: 338 kW (460 hp) at 7,500 rpm
 • Max. rpm: 8,500 rpm
 • Single-mass flywheel
 • Water cooling with heat management for engine and gearbox
 • Four valves per cylinder
 • Sequential multi-point fuel injection
 • Required fuel quality: minimum 98 octane, unleaded
 • Dry-sump lubrication
 • Electronic engine management (Bosch MS 4.6)
 • Race exhaust system with regulated race catalytic converter
 • Rear silencer with centered exhaust pipes
 • Electronic acceleration pedal

Transmission
 • Porsche six-speed sequential dog-type gearbox
 • Gear ratios
    Ring & pinion gear 14/22 i = 1.571
    Final drive 17/41 i = 2.412
    1st gear 13/41 i = 3.154
    2nd gear 17/40 i = 2.353
    3rd gear 19/36 i = 1.895
    4th gear 19/29 i = 1.526
    5th gear 24/30 i = 1.250
    6th gear 34/35 i = 1.029
 • Internal pressure-oil lubrication with
 • active oil cooling
 • Limited slip differential
 • Triple-disc sintered metal race clutch
 • Pneumatic paddle shift system

Bodywork
 • Lightweight bodywork with smart aluminum-steel composite construction
 • Welded-in roll cage, in compliance with FIA
 • Homologation Regulations for safety cages
 • Front bonnet with two air inlets for cockpit ventilation and quick fasteners
 • Removable roof section
 • Rescue bar analogue DTM system
 • Modified and widened 911 GT3 fenders
 • Modified rear wheel arches
 • Modified and widened 911 GT3 frontend with spoiler lip
 • Modified 911 GT3 rear-end with integrated rain light, in compliance with FIA Homologation Regulations

Lightweight exterior
 • CRP doors with sport-design rearview mirrors
 • CRP rear engine lid with quick fasteners
 • CRP rear wing; adjustable PC windows and rear side windows with ventilation openings
 • PC rear window
 • Underbody tray with air routing for brake- and driveshaft cooling in the rear
 • Modified 911 cockpit:
 • Magnesium sub-frame in light weight design
 • Ergonomic driver-oriented center console
 • Switch mask with fluorescent lettering
 • Steering wheel with quick release coupling, control panel and shift paddles
 • Race bucket seat with longitudinal adjustment:
 • Homologated to latest FIA requirements
 • Individual padding system
 • Six-point seat belt
 • 100 liter fuel cell (FT3 safety fuel cell)
 • Built-in air jack system (three legs)

Suspension

Front axle
 • McPherson suspension strut, adjustable in height, wheel camber and track
 • Forged struts:
 • Optimized stiffness
 • Double shear tie rod connection
 • Heavy-duty spherical bearings
 • Wheel hubs with center lock
 • Racing shock absorbers, non-adjustable
 • Forged supporting mounts
 • Double-blade-type anti-roll bar
 •  Electrohydraulic power steering

Rear axle
 • Multilink rear suspension, adjustable in height, wheel camber and track
 • Forged struts:
 • Optimized stiffness
 • Double shear tie rod connection
 • Heavy-duty spherical bearings
 • Wheel hubs with center lock
 • Racing shock absorbers, non-adjustable
 • Forged supporting mounts
 • Double-blade-type anti-roll bar

Brake System
 • Two independent brake circuits for front and rear axle,
 • adjustable by the driver via brake balance system.

Front axle
 • Aluminum six-piston racing calipers in mono-bloc design
 • Multi-piece steel brake discs; internally vented and slotted, 380 mm diameter
 • Racing brake pads
 • Optimized ventilation routing
 • Rear axle:
 • Aluminum four-piston racing calipers in mono-bloc design
 • Multi-piece steel brake discs; internally vented and slotted, 380 mm diameter
 • Racing brake pads
 • Optimized ventilation routing

Rims/Tires

Front axle
 • Single-piece light-alloy rims according to Porsche specification and design with center lock, 10.5J x 18 ET 28
 • Michelin transportation tires; tire size: 27/65-18
 • Rear axle:
 • Single-piece light-alloy rims according to Porsche specification and design with center lock, 12J x 18ET 53
 • Michelin transportation tires; tire size: 31/71-18

Electrics
 • COSWORTH color display ICD
 • COWSORTH electrical system control unit IPS32
 • Electronic throttle system
 • Fire extinguishing system (extinguishing agent: gas)
 • Battery 12 V, 70 Ah (AGM), leak-proof, placed in the co-driver foot well
 • Alternator 150 A
 • Fan in light weight design
 • Wiper with direct drive
 • Lighting system:
 • Bi-xenon-headlight
 • LED daytime running light
 • LED rear lighting system and rain light

Weight/Dimensions
 • Total weight: approx. 1,200 kg
 • Total length: 4,547 mm
 • Total width: 1,851 mm
 • Total height: 1,280 mm
 • Wheel base: 2,458 mm

Colors
 • Water-based paint
 • Exterior: white C9A
 • Interior: white filler-coat, no clear-coat finish

Cayman GT4 Clubsport

Cayman GT4 Clubsport

Concept
• Single-seat, production-based rac
• Based on: Porsche Cayman GT4 (9

Engine
• Aluminum six-cylinder rear-mounted boxer engine, rigid mounting
• 3,800 cc; stroke 76.4 mm; bore 102.7 mm
• Max. power: 283 kW (385 hp) at 7,400 rpm
• Max. rpm: 7,800 rpm
• Max. torque: 420 Nm at 4,750 – 6,000 rpm
• Compression ratio: 12.5 : 1
• Water cooling with thermal management for engine and gearbox
• Four valves per cylinder, adjustable camshaft phasing and variable valve timing VarioCam Plus
• Sequential multi-point fuel injection
• Fuel quality: minimum 98 octane, unleaded
• Dry-sump lubrication
• Electronic engine management (Continental SDI 9)
• 100-cell metal catalytic converter complying with DMSB specifications
• Rear silencer with central tailpipes
• Variable intake system with adjustable resonance butterflies
• Twin pipe sport exhaust system featuring two central tailpipes

Transmission
• Rear wheel drive
• Rigidly mounted six-speed PDK-gearbox (DCT, dual clutch transmission)
• Limited slip differential optimized for racing
• Dual mass flywheel

Bodywork
• Lightweight bodywork with intelligent aluminum-steel composite construction
• Fully integrated roll-cage complying with FIA Homologation Regulations for safety cages
• Front bonnet with quick release fasteners
• Rear deck with quick release fasteners
• Fixed carbon rear wing with side plates, black aluminum wing support with integrated Gurney flap
• Modified Cayman GT4 cockpit:
• Porsche motorsport steering wheel, Alcantara covered, integrated shift paddles
• Motorsport center console with typical Porsche switch layout
• Crash protected, lightweight battery and optimized ECU positon
• OMP race bucket seat with longitudinal adjustment (in accordance with FIA requirements)
• Six-point safety harness
• FIA certified towing loops at front and rear
• Portable fire extinguisher
• Pre-installed mounting points for on-board three-piston air jack
• Preparation for central fire extinguisher system
• Optional: 70 liter FT3 safety fuel cell with ‘Fuel Cut Off’ safety valve according to FIA regulations
• Optional: 100 liter FT3 safety fuel cell with ‘Fuel Cut Off’ safety valve according to FIA regulations
• Optional: Recaro race bucket seat with longitudinal adjustment and individual padding system. (in accordance with FIA standard 8862/2009 - latest FIA requirements)

Suspension

Front axle
• McPherson suspension strut
• Forged suspension links:
• Optimized stiffness
• Double shear mounting
• High-performance spherical bearings
• 5 bolt wheel hubs
• Motorsport shock absorbers, adjustable ride height (rebound/compression characteristics fixed)
• Reinforced track rods
• Electrohydraulic power steering with variable steering ratio and steering impulse
• Modified anti-roll bar

Rear axle
• McPherson suspension strut
• Forged suspension links:
• Optimized stiffness
• Double shear mounting
• High-performance spherical bearings
• 5 bolt wheel hubs
• Motorsport shock absorbers, adjustable ride height (rebound/compression characteristics fixed)

Brake System

Front axle
• Aluminum, mono-bloc six-piston racing calipers with ‘Anti knock off’ piston springs
• Ventilated and grooved 380 mm brake discs mounted on aluminum disc bells
• Motorsport brake pads
• Optimized brake cooling duct layout

Rear axle
• Aluminum, mono-bloc four-piston racing calipers with ‘Anti knock off’ piston springs
• Ventilated and grooved 380 mm brake discs mounted on aluminum disc bells
• Motorsport brake pads
• Optimized brake cooling duct layout

Rims/Tires

Front axle
• One piece forged alloy rims, 9J x 18, offset 28 mm, 5 bolt mounting
• Michelin transportation tires; dimensions: 25/64-18

Rear axle
• One piece forged alloy rims, 10.5J x 18, offset 53, 5 bolt mounting
• Michelin transportation tires; dimensions: 27/68-18

Electrics
• Porsche GT4 instrument cluster including typical motorsport display elements
• Porsche Track Precision Race App with provision for a lap trigger
• Electronic throttle system
• Battery 12 V, 70 Ah (AGM), leak-proof, mounted in passenger footwell
• Electric windows
• Emergency switch in cockpit and exterior emergency switch at lower left of windscreen frame
• Lighting system:
• Main headlights with H7 technology
• LED rear lighting system
• Electronic dynamic stability system PSM (Porsche Stability Management) with ABS,traction control and electronic stability control can be deactivated.
• Tire pressure monitoring system (TPMS)
• Optional: Air conditioning

Weight/Dimensions
• Total weight: approx. 1.300 kg
• Total length: 4.438 mm
• Total width: 1.817 mm
• Total height: 1.266 mm
• Aerodaynamic drag coefficient: cw = 0,32
• Wheelbase: 2.484 mm

Colors
• Water-based paint
• Exterior: white C9A
• Interior: white filler-coat, without lacquer


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