Porsche 991 RSR Officially Unveiled
It was a few weeks ago that we showed you a spy video of the new Porsche 991 RSR testing on a race track and looking insanely hot doing it. Now the company has revealed the handsome racer in full glory, and we have to say that livery kind of robs it of some of its beauty. Still, the RSR is going to be one of the coolest race cars on endurance grids everywhere in 2017.
Built to Le Mans 24 Hours GT regulations, Porsche 991 RSR is eligible for a wide range of series, including in America the Daytona 24-hour race which it will enter in January 2017. The beast features a 4.0 liter super light naturally aspirated flat-six engine which, depending on the size of the restrictor, makes 510+ horsepower operated via steering wheel actuate the sequential six-speed gearbox spinning the 31 cm wide rear tires.
A cool highlight of the new Porsche 991 RSR is the radar-supported collision warning system which becomes especially handy during the dark hours of the 24 hour races. There is also a new safety cage concept and a new, rigidly-mounted racing seat adjustable to fit all the drivers of the team. The race car is now also a lot more serviceable, with the entire panels of the carbon body exchangeable in a short time and the suspension setup made easy.
Below you will find the full technical specs of the 2017 Porsche 991 RSR:
Single-seater race car for the LM-GTE category
Weight ca. 1,243 kg (base weight per regulations)
Length 4,557 mm (without splitter, rear wing, diffuser)
Width 2,042 mm (front axle) / 2,048 mm (rear axle)
Wheelbase 2,516 mm
Water-cooled six cylinder boxer, positioned in front of the rear axle; 4,000 cm3, stroke 81.5 mm, bore 102 mm; ca. 375 kW (510 hp) depending on restrictor; four-valve technology; direct fuel injection; dry sump lubrication; single mass flywheel; power output limitation via restrictor; electronic throttle.
Six-speed sequential constant-mesh gearbox; two-shaft longitudinal layout with bevel gear; shifting via electronic shift actuator; shift paddles on the steering wheel; magnesium gearbox casing; multi-disc self-locking differential with visco unit; three disc carbon race clutch.
Weight-optimised chassis in combined aluminium steel design; removable roof hatch for cockpit access; lifting bushes integrated in the roof; FT3 fuel cell in front of the car; welded-in roll cage; seat pursuant to FIA 8862-2009; rigidly mounted to the chassis; six-point safety harness for use with HANS; longitudinally adjustable pedalry; bodywork made of CFRP, quick-change; rear wing with “swan neck” mounts; four-post air jack system with safety pressure valve; electronically activated fire extinguisher system; heated windscreen.
Front axle: double wishbone front axle; four-way vibration damper; twin coil spring setup (main and helper spring); anti-roll bars, adjustable by blade positions; electro-hydraulic power steering
Rear axle: integrated rear axle subframe with double wishbone axle; four-way vibration damper; twin coil spring setup (main and helper spring); anti-roll bars, adjustable by blade positions; electro-hydraulic power steering; tripod drive shafts.
Two independent brake circuits for front and rear axle, adjustable via balance bar.
Front axle: One piece aluminium six-piston racing callipers with quick coupling; internally ventilated steel brake discs, 390 mm diameter; race brake pads; optimised brake cooling ducts.
Rear axle: One piece aluminium four-piston racing callipers with quick coupling; internally ventilated steel brake discs, 355 mm diameter; race brake pads; optimised brake cooling ducts.
Front axle: One piece forged light alloy wheels, 12.5Jx18 offset 25 with centre lock nut; Michelin slick 30/68-18.
Rear axle: One piece forged light alloy wheels, 13Jx18 offset 37 with centre lock nut; Michelin slick 31/71-18.
Cosworth Central Logger Unit; CFRP multi-functional steering wheel with integrated display; shift paddles and quick release; Collision Avoidance System; controlled alternator in connection with LiFePo4 battery; LED headlights; LED taillights plus rain light; illuminated car number and leader light system; black light inside cockpit; electric adjustable wing mirrors with memory function; tyre pressure monitoring system (TPMS); drink system; air conditioning system; membrane switch panel on centre console with fluorescent labelling.