hp @ 8000 rpm
122.4 hp per liter
(from Porsche Press
Release) Most powerful racing 911 considerably improved
Stuttgart. The Porsche GT3 RSR launches into the new model
year with extensive modifications. The most powerful race car based
on the Porsche 911, which last year scored wins at the 24 hour races
of Le Mans and Spa as well as overall victory at the Nuerburgring 24
hours, competes in the GT2 class at international long distance
races. The most distinguishing feature of the new GT3 RSR is the
front end which received major improvements to the aerodynamics. The
majority of innovations however are hidden under the
Aside from the easily recognisable additional spoilers on the front
apron, so-called flicks, an optimised air ducting with
newly-designed side air outlets generates more downforce and reduces
drag. The rear end including the rear wing was taken over from the
predecessor. Extensive changes to the suspension cinematics increase
mechanical grip considerably. The range of possible suspension
set-ups was broadened.
The 3.8-litre boxer engine of the GT3 RSR remains unchanged apart
from slight improvements to details. It delivers 465 hp (342 kW) at
8,000 revs per minute and delivers a maximum torque of 430 Nm at
7,250 revs. The rev limiter of the efficient six-cylinder kicks in
at 9,400 rpm.
Much of the know-how in the GT3 RSRs totally new gearbox has come
from the RS Spyder sports prototype. The sequential six-speed unit,
developed by Porsche engineers, is considerably lighter than its
predecessor. Internal friction was substantially reduced. The flat
angle of the drive shafts allows teams a wider range of suspension
Aside from the GT3 Cup and the GT3 Cup S, the GT3 RSR is the third
race car based on the Porsche 911 offered by Porsche Motorsport.
Thirty-five units of the fastest and most powerful long distance
racer made in Weissach, apart from the exclusive RS Spyder sports
prototype, are now being produced and delivered to customer teams
around the globe. The price of the GT3 RSR is 349,800 Euro plus VAT.
Technical Description Porsche GT3 RSR (2008)
Six-cylinder aluminium boxer engine, water-cooled; 3,795 cc; stroke
76.4 mm; bore 102.7 mm; 465 bhp (342 kW) at 8,000 rpm; max. torque
430 Nm at 7,250 rpm; air restrictors 2 x 29.5 mm; maximum engine
speed 9,400 rpm; four valves per cylinder; dry sump lubrication;
individual throttle butterflies; central air intake; electronic MS
4.0 engine management;
fuel injection; fuel grade: RON 98 Super Plus unleaded.
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 %.
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 safety fuel tank with fast filling function; air jack;
welded-in safety cage; bucket-type racing seat (on driver's side
only) with flame-resistant seat cover; six-point seat belt adapted
for use of the HANS Head and Neck Support; electric
Front: McPherson spring strut axle; Sachs four-way gas pressure
dampers; double coil springs (main and ancillary spring); front axle
arms adjustable for camber; adjustable sword-type anti-roll bar on
both sides; power steering.
Rear: Multi-arm axle with rigidly mounted axle sub-frame; Sachs
four-way gas pressure dampers; double coil springs (main and
auxiliary spring); rear axle tie-bar reinforced and infinitely
adjustable; adjustable sword-type anti-roll bar on both sides.
Complete suspension infinitely adjustable (height, camber, track).
Brake system with balance bar control.
Front: Single-piece six-piston aluminium fixed callipers;
inner-vented, 380 mm in diameter; racing brake pads.
Rear: Single-piece four-piston aluminium fixed callipers;
inner-vented, 355 mm in diameter; racing brake pads.
Front: Three-piece BBS light-alloy wheels (11J x 18-34); central
Rear: Three-piece BBS light-alloy wheels (13J x 18-12.5); central
Motec display with integrated data recording; adjustable traction
control; battery: 12 volt, 50 Ah, 140 Ah alternator.
Approx. 1,225 kg complying with A.C.O. regulations, 1,200 kg
complying with FIA regulations.