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Porsche presents GT3-RSR Spec 2011 – GT racer gets an update

11 Dec
Porsche presents GT3-RSR Spec 2011 – GT racer gets an update

Porsche is now unveiling the 2011 911 GT3 RSR, the latest iteration of what’s surely the most successful GT race car of all time.

What’s new? More power, for one thing.

Porsche has made extensive changes to the 911 GT3 RSR to be competitive in the coming season on the routes of the world.

Her world premiere of the 2011er version of the world’s most successful racing car in the GT racing season party “Night of Champions” at the Development Centre Weissach.   When developing the GT3 RSR had a redesigned aerodynamics at the front and rear, changes to the suspension kinematics and on the engine in the foreground.

The Porsche 911 GT3 RSR, including lots of detailed improvements in the new season.

The naturally aspirated 4.0-liter flat-six gets a 5-hp bump to 455, the full power of which is unleashed at 7800 rpm. Maximum torque is 332 lb-ft, and the powerhouse still redlines at a screaming 9400 rpm. Vrroooom!!!

To achieve the slight power gain, Weissach engineers tweaked the engine control to adjust even more precisely to differing fuel quality. The intake is also reworked, while the exhaust system is entirely new. The four-valve-per-cylinder engine sports individual throttle bodies and dry-sump lubrication. It’s an evolution of a tried-and-true engine, not the new, direct-injection powerplant now used in most of Porsche’s street-legal 911s.

The task of routing the power to the rear wheels falls to a sequential six-speed gearbox with a three-disc carbon clutch. The traction-control system is adjustable and tuned to enable maximum acceleration. Eighteen-inch BBS wheels are fitted; the fronts are wider than last year’s—12 inches instead of 11—while the rear wheels remain a staggering 13 inches wide. The suspension is completely adjustable. Despite a galvanized-steel body, the new long-distance racer weighs a claimed 2690 pounds.

From the outside, you can tell it’s the 2011 model by the LED taillights taken directly from the street-legal current-gen 997. There is a new front lip spoiler with improved airflow; the rear is also tweaked, adding additional apertures for ventilation. While the rear now looks much like the current 997, the GT3 RSR curiously keeps the looks of the “phase-one,” pre-2009 997 at the front. The cutout for the front turn signals looks almost exactly like that of the 2004–2008 models. It’s a surprising decision as the GT3 Cup and the GT3 R, the RSR’s sister models in Porsche Motorsport’s lineup, showcase the latest 911 styling in full.

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The 911 GT3 RSR is not street legal, and the price is steep: In Germany, Porsche will charge €410,000 before taxes. At current exchange rates, that’s more than half a million dollars. But for those on a budget, Porsche Motorsport will offer a kit to upgrade last year’s model to 2011 specs.

Technical description Porsche GT3 RSR (2011 model year)
Engine
Water-cooled six-cylinder boxer engine; 3,996 cc; stroke 80.4 mm; bore 102.7 mm; 455 hp (335 kW) at 7,800 rpm; max. torque 450 Nm; air restrictors 2 x 28.6 mm; max. revs 9,400 rpm; four valve technology; dry sump lubrication; individual throttle butterflies; fuel injection.

Transmission
Porsche six-speed gearbox with sequential jaw-type shift; oil/water heat exchanger, single-mass flywheel; hydraulic disengagement lever; three-plate carbon-fibre clutch; rear wheel drive; limited slip differential 45/65 percent.

Body
Monocoque body (basis GT3 RS) of hot-galvanised steel; aerodynamically optimised front end with front spoiler; aerodynamically optimised front underfloor; adjustable rear wing; 90-litre FT3 safety fuel tank with fast filling function; air jack; welded-in safety cage; race seat (driver’s side only) with flame retardant upholstery; six-point seat belt adapted for use of the HANS Head and Neck Support; electric fire extinguishing system.

Suspension
Front axle: McPherson spring strut axle; Sachs four-way gas pressure dampers; double coil springs (main and auxiliary); front axle arms adjustable for camber; adjustable sword-type anti-roll bar; power steering.
Rear: Multi-arm axle with rigidly mounted axle sub-frame; Sachs four-way gas pressure dampers; double coil springs (main and auxiliary); rear axle tie-bar reinforced and infinitely adjustable; adjustable sword-type anti-roll bar. Complete suspension infinitely adjustable (height, camber, track).

Brake system
Brake system with balance bar control.
Front: Single-piece six-piston aluminium fixed callipers; inner vented, 380 mm diameter; racing brake pads.
Rear: Single-piece four-piston aluminium fixed callipers; inner vented, 355 mm diameter; racing brake pads.

Wheels
Front: Three-piece BBS light-alloy wheels (12J x 18 ET 34); central bolt.
Rear: Three-piece BBS light-alloy wheels (13J x 18 ET 12.5); central bolt.

Electrical system
Motec display with integrated data recording; multi-function display with integrated gearshift indicator; adjustable traction control; battery: 12 volt, 80 Ah, 140 Ah alternator.

Weight
1,220 kg

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2 Comments

Posted by on December 11, 2010 in Uncategorized

 

Tags: , , ,

2 responses to “Porsche presents GT3-RSR Spec 2011 – GT racer gets an update

  1. Sylvitan

    December 31, 2010 at 8:26 am

    Hello ! I’m new on this forum, hope to talk to you soon 🙂
    I love carsn seotons and tuning, and you ?

    Like

     
  2. bryce simmons

    August 31, 2011 at 6:57 am

    no words its priceless…. I would lke to know how the throttle butterflys worked?

    Like

     

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