La carrosserie de la nouvelle Porsche 718 Cayman GT4 Clubsport contient du chanvre

By on

La carrosserie de la nouvelle Porsche 718 Cayman GT4 Clubsport contient du chanvre

By on / 0 Comments

Porsche a récemment dévoilé sa nouvelle 718 Cayman GT4 Clubsport. Celle-ci débarque avec une version du six cylindres à plat de 3,8 litres, moteur que l’on retrouve dans la 911 GT3.  Ce puissant moteur atmosphérique développe tout de même 425 chevaux et 313 lb-pi de couple, avec un taux de compression de 12,5:1, donc il requiert de l’essence à 98 d’octane. Le tout est boulonné à une boite PDK à six rapports.

 

Cette petite bête de piste à moteur central ne pèse que 2910 livres, même avec le climatiseur et l’arceau de sécurité installés. On offre deux variantes de cette 718 Cayman Clubsport, soit la variante « Track Day » (134 000 euros ou 200 000$CAD) et la variante « Compétition » (157 000 euros ou 240 000$CAD).

La première vient avec une suspension non ajustable et un réservoir d’essence de 80 litres. La seconde vient avec une suspension ajustable, un réservoir d’essence de 115 litres, des vérins hydrauliques et un système d’extinction de feu central.

 

Jusqu’ici, tout baigne.

Mais Porsche affirme avoir innové de manière particulière dans ses interminables efforts visant à rendre la voiture à la fois solide et légère. En effet, on affirme que les portières et l’aileron ont été conçus à l’aide d’un mélange de lin et de chanvre, des matériaux qui, une fois jumelés à l’aide d’un procédé unique, offrent des propriétés similaires à celles de la fibre de carbone.

 

Voici donc une galerie de photo de cette sublime 718 Cayman GT4 Clubsport, suivie d’une vidéo et de la liste complète des spécifications!

 

Engine

  • Aluminium six-cylinder mid-positioned boxer engine with rigid mounting
  • 3,800 cc; stroke 77.5 mm, bore 102 mm
  • Max. power: 313 kW (425 hp) at 7,500 rpm
  • Max. rpm: 7,800 rpm
  • Max. torque: 425 Nm at 6,600 rpm
  • Compression ratio: 12.5:1
  • Racing optimised water cooling with thermal management for engine and gearbox
  • Four-valve technology with adjustable camshaft phasing and variable valve timing VarioCam Plus
  • Fuel quality: Super Plus unleaded, minimum 98 octane
  • Racing optimised electronic engine management (Continental SDI 9)
  • Integrated dry sump lubrication
  • 100-cell metal catalytic converter complying with DMSB specifications

 

Transmission

  • Rear wheel drive
  •  6-speed PDK gearbox with rigid suspension and electronic control unit optimised for racing
  • Reinforced dual mass flywheel
  • Internal pressure oil lubrication with active oil cooling
  • Differential lock optimised for racing

 

Bodywork

  • Lightweight body in aluminium-steel composite construction
  • Welded-in roll cage, certified according to FIA Art. 277
  • Front bonnet with quick release fasteners
  • Rear hood with quick release fasteners
  • Fixed rear wing with “swan neck” mount made of natural-fibre composite materials, including the sideblades, black aluminium wing supports with integrated carbon fibre Gurney flap
  • Driver and co-driver doors of natural-fibre composite materials
  • Roof including escape hatch, certified according to FIA Art. 275a
  • Recaro race bucket seat with longitudinal adjustment and padding system, adjustable to the individual needs of the drivers (in accordance with FIA Standard 8862/2009 – the latest FIA requirements)
  • Three-piston air jack system  (“Competition”)
  • Pre-installed mounting points for three-piston air jack system (“Trackday”)
  • Provision for safety net
  • FIA-certified towing loops, front and rear
  • Motorsport centre console with enhanced functionality and adapted usability
  • Six-point safety harness
  • 115-litre FT3 safety fuel cell with “Fuel Cut Off” safety valve complying with FIA regulations (“Competition”)
  • 80-litre FT3 safety fuel cell with “Fuel Cut Off” safety valve complying with FIA regulations (“Trackday”)

 

Suspension

Front axle:

  • MacPherson suspension strut, adjustable in height, camber and track
  • Forged suspension links: optimised stiffness, double shear mounting, high-performance spherical bearings
  • 5-bolt wheel hubs
  • Racing 3-way shock absorbers with rebound and 2-stage compression adjustment, high and low speed (“Competition”)
  • Fixed shock absorbers (“Trackday”)
  • Electromechanical power steering with variable steering ratio
  • Anti-roll bar, 3-hole design

Rear axle:

  • MacPherson suspension strut, adjustable in height, camber and track
  • Forged suspension links: optimised stiffness, double shear mounting, high-performance spherical bearings
  • 5-bolt wheel hubs
  • Racing 3-way shock absorbers with rebound and 2-stage compression adjustment, high and low speed (“Competition”)
  • Fixed shock absorbers (“Trackday”)
  • Adjustable blade-type anti-roll bar

 

Brake system

Front axle:

  • Aluminium, mono-bloc six-piston racing callipers with “Anti Knock Back” piston springs
  • Steel brake discs, multi-piece, ventilated and grooved, 380 mm diameter
  • Racing brake pads
  • Brake balance adjustment via a balance bar system (“Competition”)
  • Brake booster (“Trackday”)

Rear axle:

  • Aluminium, mono-bloc four-piston racing callipers with “Anti Knock Back” piston springs
  • Steel brake discs, multi-piece, ventilated and grooved, 380 mm diameter
  • Racing brake pads
  • Brake balance adjustment via a balance bar system (“Competition”)
  • Brake booster (“Trackday”)

 

Electrics

  • COSWORTH instrument cluster ICD with integrated data logger
  • Upgraded fault diagnosis with PIWIS motorsport tester
  • Porsche Track Precision Race App
  • Integrated lap trigger via GPS signal
  • Electronic throttle system
  • Lightweight lithium-ion (LiFePo) battery, 60 Ah, leak-proof, mounted in passenger footwell (“Competition”)
  • Battery 12 V, 70 Ah (AGM), leak-proof, mounted in passenger footwell (“Trackday”)
  • Emergency cut-off switch in cockpit and outside left of the windscreen
  • Driving stability system PSM (Porsche Stability Management) with ABS, traction Control (TC) and Electronic Stability Control (ESC), able to be completely deactivated
  • Tyre pressure monitoring system (TPMS)
  • Central fire extinguishing system in accordance with FIA regulations (“Competition”)
  • Handheld fire extinguisher (“Trackday”)
  • Air conditioning
  • Electric wing mirror adjustment
  • Multifunctional CFRP motorsport steering wheel with pit speed limiter and quick release coupling (“Competition”)
  • Multifunctional motorsport steering wheel with pit speed limiter (“Trackday”)
  • Centre console with map switch to adjust the ABS, ESC, TC and switch between preset tyre circumferences

 

Weight/dimensions

  • Total weight: 1,320 kg
  • Total length: 4,456 mm
  • Total width: 1,778 mm
  • Total height: 1,238 mm
  • Wheelbase: 2,456 mm

 

Rims/Tyres

Front axle:

  • One-piece light-alloy forged wheels in new weight-optimised rim design, 9J x 18 offset 28 with 5-bolt mounting
  • Delivered with Michelin transportation tyres, dimension: 25/64-18
  • Michelin slick/wet tyres, dimension: 25/64-18

Rear axle:

  • One-piece light-alloy forged wheel in new weight-optimised rim design, 10.5J x 18.5 offset 53 with 5-bolt mounting
  • Delivered with Michelin transportation tyres, dimension: 27/68-18
  • Michelin slick/wet tyres, dimension: 27/68-18

 

Colours

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

 

Delivery

From February 2019