Powering the new 911 GT3 R is a 4-litre flat-6 unit which is largely identical to the high-performance production engine of the road-legal 911 GT3 RS. Direct petrol injection, which operates at pressures up to 200 bar, as well as variable valve timing technology ensure a particularly efficient use of fuel. The normally-aspirated engine offers significantly better driveability and a broader usable rev range. Power from the rear engine is transferred to the rear wheels via a Porsche sequential six-speed constant-mesh gearbox. As in the GT road-going models of the 911, the driver changes gears via shift paddles positioned on the steering wheel.
| Porsche 911 GT3 R | |
|---|---|
| Class | FIA GT3 |
| Engine | Water cooled 4000cc, 6-cylinder rear mounted Boxer engine |
| Bore x stroke | 102mm x 81.5mm |
| Max. output | (more than) 500hp subject to FIA BoP air restrictor |
| Valves | 4-valves per cylinder |
| Engine management | BOSCH MS 6.4 |
| Fuel delivery | Direct fuel injection |
| Lubrication | Dry sump lubrication |
| DRIVE/TRANSMISSION | |
| Transmission | Porsche six-speed constant-mesh gearbox (sequential) |
| Drive | Rear wheels |
| Traction control | Yes |
| SUSPENSION/STEERING/BRAKES | |
| Suspension | Wheel hubs with centre-lock wheel nuts on all wheels. Adjustable anti-roll bar blades (left and right) front and back |
| Front axle | McPherson strut, adjustable in height, camber and toe |
| Rear axle | Multilink independent rear suspension, adjustable in height, camber and toe |
| Steering | Power-assisted steering with electro-hydraulic pressure feed |
| Brake system | Two separate brake circuits for front and rear axles; adjustable by driver via brake balance bar system, race ABS |
| Brakes front | 6-piston aluminium monobloc racing brake callipers, ventilated and grooved steel brake discs measuring 380mm in diameter |
| Brakes rear | 4-piston aluminium monobloc racing brake callipers, ventilated and grooved steel brake discs measuring 372mm in diameter |
| BODY | |
| Material | The roof, front cover and fairing, wheel arches, doors, side and tail sections as well as the rear cover are made of carbon-fibre composite material (CFRP) |
| Windows | All windows (for the first time also the windscreen) are made of polycarbonate |
| Safety | Welded-in roll cage, FT3 safety fuel tank, fire extinguishing system |
| WHEELS/TYRES | |
| Front wheels | One piece BBS alloy wheels according to Porsche specification and design, 12.0 x 18 offset 17 |
| Front tyres | Michelin tyres: 300/650-18 |
| Rear wheels | One piece BBS alloy wheels according to Porsche specification and design, 13.0 x 18 offset 37.5 |
| Rear tyres | Michelin tyres: 310/710-18 |
| DIMENSIONS/WEIGHT | |
| Length | 4604mm |
| Height | 1232mm |
| Width front axle | 1975mm |
| Width rear axle | 2002mm |
| Wheelbase | 2463mm |
| Minimum weight | 1220kg |
| Fuel tank | 120 litres (increased by 12 litres) |
Source: Porsche
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