Porsche has revealed the GT3 racing version of its latest generation 911 with a larger 4.2 liter engine and improved aerodynamics.
The Porsche 911 GT3 R has been revealed, ahead of its competitive debut in the GT3 racing category next year.
The new 911 GT3 R, based on the latest generation 911 Porsche “992”, will meet customer teams in the GT3 categories of the American IMSA series and the FIA World Endurance Championship from next year.
The 911 GT3 R drive is bigger 4.2 liters (4194 cc) road version of the 911 GT3 naturally aspirated flat six engine that is now being developed 412 kWwith a redline of 9250 rpm – 37 kW more and 250 rpm higher than the road car on which the racer is based.
Porsche says the engine has been tuned for an “optimized torque and power curve throughout the rev range” – to make it “better suited to gentleman drivers” without an extensive racing background.
Mated to a six-speed sequential racing transmission with paddle shifters, the 4.2-litre engine has been rotated 5.5 degrees forward to allow for a larger rear diffuser – and the alternator and A/C compressor have been moved a meter forward for better weight distribution.
The car measures 4619mm in length and 2039-2050mm in width, with a curb weight of 1250kg – subject to ‘power balance’ rules which can increase or decrease the car’s weight to ensure that all GT3 cars of various shapes and sizes are match performance. .
Under the skin is a double-wishbone front and multi-link rear suspension, with five-way adjustable dampers, adjustable anti-roll bars and forged aluminum control arms, plus a mechanical limited-slip rear differential.
Filling out the arches are 18-inch center-lock wheels with Michelin racing tires, concealing 390mm front and 370mm rear steel brakes with six-piston front and four-piston rear aluminum calipers and a racing anti-lock braking system (ABS) designed by Germany’s Bosch.
The 911 GT3 R’s aerodynamics package is even more extreme than the road car it’s based on, with more aggressive bumpers and side skirts, wider wheel arches, additional vents for better cooling, and a taller rear wing similar to the upcoming road-going GT3 RS. .
The GT3 R’s wheelbase is 48mm longer than the road-going GT3 (2,507mm versus 2,459mm) to “reduce load on the rear tires and improve consistent tire behavior over longer stretches”, while revised front axle geometry allows for more. effective aerodynamics of the lower part of the body.
The body is made from an “intelligent aluminium-steel composite” coated with carbon fiber for the front and rear deck lids, doors, side panels, rear wing and swan-neck roof, and aramid fibers for the wheel arches.
Inside is a ventilated carbon fiber racing seat with six-point harnesses, adjustable steering and pedal assemblies, a heated windshield, a carbon fiber steering wheel, a 10.3-inch digital control screen, two safety nets and a fire extinguisher.
The Porsche 911 GT3 R will make its racing debut next year. It is available for customer teams to order from €511,000 ($755,000) before tax.
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