Technical description Porsche 911 GT3 R

Technical description Porsche 911 GT3 R

11.05.2018: Porsche 911 GT3 R (991, Gen. 2) racing version Concept • Single-seater customer race car based on the Porsche 911 GT3 RS

Porsche 911 GT3 R (991, Gen. 2) racing version



Concept


• Single-seater customer race car based on the Porsche 911 GT3 RS



Engine


• Water-cooled six-cylinder boxer engine (rear mounted)
• 4,000 cm3; stroke 81.5 mm; bore 102 mm

• Output: over 404 kW (550 hp) without restrictors, actual output dependent on FIA BoP (restrictor)

• Single mass flywheel
• Four-valve technology
• Direct fuel injection
• Fuel supply: Super Plus lead free, to E20 (min. 98 Octane)
• Dry sump lubrication

• Electronic engine management BOSCH MS 6.4 with integrated data acquisition (basic memory 1 GB, max. 100 freely selectable channels)

• Race exhaust system (motorsport catalyst and country-specific pre-silencer available)
• Six electronically operated throttle valves



Transmission


• Porsche sequential six-speed constant-mesh gearbox
• Mechanical slip differential with external pre-load adjustment
• Racing clutch
• Paddle-shift with electronic shift drum actuator




Bodyshell



• Lightweight body featuring intelligent aluminium-steel composite design
• Welded-in roll cage according to FIA regulations
• Removable escape hatch in roof in accordance with the latest FIA regulations
• Vehicle recovery system tow points
• Lightweight exterior:
• CFRP doors with racing mirrors
• CFRP rear lid with quick release fasteners
• CFRP rear wing, adjustable
• CFRP extended front fenders and wheel arch louvers
• CFRP front fairing and cooling air ducting
• CFRP rear fairing
• Polycarbonate glazing
• Removable polycarbonate door windows
• Modified 911 cockpit:
• CFRP interior trim
• Ergonomic centre console aligned to driver with digital multi-touch panel
• Multi-function racing steering wheel with quick release coupling and shift paddles
• Racing bucket seat in accordance with FIA standard 8862/2009:
• Six-point fixed bolting
• Integrated air conditioning
• Six-point safety harness
• Ca. 120-litre FT3 safety fuel cell with fuel cut off safety valve in accordance with FIA regulations and changeable left and right refuelling
• Air jack system (four jacks)



Suspension


Front axle


• Double wishbone front axle
• Forged aluminium control arms
• Stiffness-optimised
• High performance spherical bearings
• Wheel hubs with centre-lock wheel nuts
• Motorsport vibration damper, 4-way adjustable
• Anti-roll bar, adjustable by blade position
• Power-assisted steering with electro-hydraulic pressure feed
• Setup changes without new alignment via shim system




Rear axle


• Multi-link rear axle
• Machined aluminium control arms, stiffness optimised with high performance spherical bearings
• Wheel hubs with centre-lock wheel nuts
• Motorsport vibration damper, 4-way adjustable
• Machined aluminium mounts
• Anti-roll bar, adjustable by blade position
• Setup changes without new alignment via shim system



Brake system


• Two separate brake circuits for front and rear axles, adjustable by driver via balance bar system



Front axle


• Six-piston aluminium monobloc racing brake calliper
• Steel brake discs, multi-piece, ventilated, D = 390 mm
• Racing brake pads
• Twin-flow brake cooling ducts



Rear axle


• Four-piston aluminium monobloc racing brake calliper
• Steel brake discs, multi-piece, ventilated, D = 370 mm
• Racing brake pads
• Twin-flow brake cooling ducts



Rims/Tyres

Front axle


• One-piece BBS alloy wheels according to Porsche specification, 12.5 J x 18
• Michelin transport tyres; tyre dimension: 300/680-18




Rear axle


• One-piece BBS alloy wheels according to Porsche specification, 13J x 18
• Michelin transport tyres; tyre dimension: 310/710-18



Electrics


• COSWORTH colour display CDU
• COSWORTH Logger CLU (6 GB memory)
• COSWORTH power management system IPS48 MK2
• Porsche Motorsport traction control PMTC
• Fire extinguisher system (agent: gas)
• Battery 12 V, 60 Ah (LiFePo lithium ion), leak-proof, mounted in passenger footwell
• Multifunctional CFRP motorsport steering wheel with quick release coupling
• Digital multi-touch panel
• BOSCH LIN 175A alternator regulator
• BOSCH racing-ABS, generation 5
• Single-blade wiper with direct drive
• Optional BOSCH CAS Integration (race ready)
• LED main headlights
• Rear and rain lights with LED technology




Optional (factory installation)


• IMSA kit
• Windshield braces
• Rear window braces
• Sensor package
• FIA endurance kit
• 2 LED extra lights in front fairing
• Clutch fan
• Telemetry GSM Low-Band (R+)
• Motorsport catalyst (depending on regulations)
• Heated windshield




After-sales options


• Option 1
• Channel extension for detailed engine data recording, fastest recording rate 1,000 Hz
• Option 2
• Data copy from internal memory of the engine data recording to an external USB stick




More options


• Front silencer
• Tyre pressure monitoring system (TPMS)
• Cockpit lighting
• Start number illumination
• 2 LED auxiliary headlights



Weight/dimensions



• Total weight: tbd (BoP dependent)
• Overall length: 4,629 mm
• Overall width front axle: 1,975 mm
• Overall width rear axle: 2,002 mm
• Wheelbase: 2,459 mm

Colour



• Body painted with water-soluble paint: white C9A

• Interior: white primer with clear-coat finish

• Body parts in plain carbon (front and rear fairings, front lid, rear lid, doors, wheel arches, rear wing)



Vehicle price   
459,000 Euro plus country-specific VAT


911 GT3 RS: combined fuel consumption 12.8 l/100 km; CO2 emissions 291 g/km






Oliver Hilger- photos Porsche

Permanent-URL: http://www.automobilsport.com/porsche-911-gt3-r-technical-description---175916.html

11.05.2018 / MaP

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