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Old 07-25-2006, 07:33 AM   #1
NYCshopper
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Location: www.nugateway.com
Default NEW 2006 Porsche 911 GT3 RSR

NEW 2006 Porsche 911 GT3 RSR



Press Release:
Quote:
Spa 24 Hour Race, preview:
The new 911 GT3 RSR: First race outing rounds off development programme

Stuttgart . Premiere in Spa: The Manthey Racing team from Germany runs two brand new Porsche 911 GT3 RSR vehicles on 29 July in the 24 hour race on the Belgian circuit. Porsche developed the near-standard racing sportscar based on the road-going 911 GT3 RS and put it in the hands of the experienced team under the direction of team principal Olaf Manthey. Works drivers Timo Bernhard and Marc Lieb (both Germany) share driving duties with Pedro Lamy from Portugal in the GT3 RSR with starting number 111.
Driving the Porsche with starting number 197 are factory pilots Lucas Luhr (Monaco), Sascha Maassen (Belgium) with Marcel Tiemann (Monaco).

For Porsche and Manthey Racing the race is regarded as an important test under race conditions and at the same time serves as an assessment of the vehicle‘s present position. For 2006, this race is the only event that is currently planned. For Spa, the car is entered in the so-called Group 2 where vehicles from national championships (here Belcar) are eligible to compete. In 2007, the 911 GT3 RSR will be available for customer racing and aims to continue the success streak of its predecessors. Porsche customer teams claimed class wins in Spa every year since the GT3 first competed there in 2001 – with an overall victory in 2003.

In the FIA GT Championship, the American Le Mans Series and the Le Man Series as well as at the endurance classics of Le Mans, Daytona, Sebring and the Nürburgring, the GT3 in its various versions secured many records and title wins.

Built on the 911 GT3 RS, a particularly light and sporty derivative of the
911 GT3, the current GT3 RSR is designed to comply with the A.C.O (Automobile Club de l’Ouest), the FIA-GT and IMSA (International Motorsports Association) as well as VLN (Veedol Langstrecke Nürburgring) regulations. Porsche decided to build the new GT3 RSR after analysing the relevant A.C.O. and FIA regulations in a specification which allows a minimum weight of 1,225 kilograms (predecessor: 1,125 kgs) and permits the tyre width to be increased by two inches to now 14 inches. 35 kilograms of the required additional weight may be placed as ballast in the vehicle, resulting in a lower centre of gravity.

For the normally-aspirated Porsche engine this specification allows a capacity of 3.8-litres with two 30.3 millimetre air restrictors
(predecessor: 3.6-litres, 29 mm diameter). The increase in displacement was achieved through the enlargement of the bore to 102.7 millimetres with the unchanged stroke of 76.4 mm. With the mandatory air restrictors, the unit delivers 359 kW/485 hp at 8,500 revs per minute. Maximum torque increased to 435 Nm. Top engine speed is reached at 9,000 rpm. Thanks to the increase in capacity and the corresponding reprogramming of the electronics the top performance as well as the response and driveability have further improved.
The new positioning of the mid-front radiator and the use of side radiators
- taken from the high performance Carrera GT sportscar – contribute to the thermal health of the engine.

For the 24 hour race in Spa, the GT3 RSR features the proven sequential six-speed gearbox of its forerunner. The customer vehicles for 2007 will be delivered with a new sequential six-speed transmission featuring the gears of the RS Spyder which competes in the American Le Mans Series.

The bodyshell of the GT3 RSR with the welded-in safety cage is ten percent stiffer than its predecessor. Distinctive wheel arches widen the body by 50 millimetres on each side. The track is enlarged correspondingly; wheels and tyres of the maximum allowable dimension can be fitted.

The relocation of the supplementary oil tank (option), the power steering and the battery to the front improve the weight distribution. The front and rear lids, the front mudguards, the wider rear, the doors as well as the front and rear panelling and wing consist of carbon-fibre composite material. The rear and side windows are manufactured from light polycarbonate.

The newly-developed aerodynamic package improves the aerodynamic efficiency compared to the forerunner (type 996 GT3 RSR) by a total of around seven percent. Airflow to and from the radiators, the brakes and the engine were further optimised. In compliance with the FIA and A.C.O. regulations the new GT3 RSR features a flat underbody.

The suspension with Porsche-optimised struts at the front and the Porsche multi-link axle at the rear corresponds to the configuration of the standard car. The modified kinematics is set-up for the wider tyre footprint and for the lowest possible camber change in rebound and compression. The new ZF-Sachs shock absorbers feature the Through-Rod-System with considerably lower chamber pressure and hence less friction than conventional dampers. As a result they offer a significantly improved response characteristic. The position of the rear axle was optimised. The axle features a new anti-rollbar, an adjustable upper link and an optimised lower link.

The brake system features six-piston aluminium callipers and 35 millimetre thick brake discs measuring 380 mm in diameter at the front and 30 millimetre four-piston aluminium callipers with 355 mm diameter discs at the rear.

Over the 2006/07 winter, 35 units of the new racing sportscar will initially be built.


Technical description: Porsche 911 GT3 RSR (basis 911 GT3 RS, 2006)

Concept

Single-seater, near-standard racing sportscar
Basis: 911 GT3 RS
Homologation: Spa 24 Hours Group 2 (national championship), respectively spring 2007 (A.C.O., IMSA, FIA GT) Suitable for competition in international GT events Not approved for road use

Bodywork

Coupé, monocoque structure
Basis 911 GT3 RS
Lightweight, all-steel bodyshell hot-galvanised on both sides Front apron, rear bumper and sideskirts made of carbon-fibre, aerodynamically optimised Rear-lid, panelling and doors made of carbon-fibre Extended wheel arches made of carbon-fibre Side and rear windows made of plastic Adjustable rear wing made of carbon-fibre Flat underbody complying with A.C.O. and FIA regulations Welded-in safety cage (30 metres of seamless steel tubing) Racing bucket seat with fire retardant upholstery Six-point seat harness, HANS compatible Electric fire extinguishing system Air-jack system


Aerodynamics

Adjustable through rear wing and ride height


Engine

Six-cylinder, water-cooled boxer engine, aluminium engine block and cylinder heads, four valves per cylinder, oil cooler with water-oil heat-exchanger, variable valve timing (VarioCam), hydraulic valve-play compensation, intake system with two restrictors each 30.3 mm for A.C.O.
1,225 kg-version, single-throttle butterfly valve, dry-sump lubrication with separate oil tank, oil and cooling water refilling system, exhaust gas
treatment: two Metalits with PE Design™, stereo lambda sensor-control, electronic engine management system MS 4.0, six coil electronic ignition, sequential multi-point injection

Bore 102.7 mm Ø
Stroke 76.4 mm
Displacement 3,795 cc
Compression ca. 14.5:1
Max. power 357 kW (485 hp) at 8,500 rpm
Max. torque 435 Nm at 7,250 rpm
Power output 99.2 kW per litre
Max. revs 9,000 rpm
Fuel type RON 98 to RON 102

Exhaust system in the basis version following A.C.O.-spec: Tubular headers with muffler system (113 dB pass-by)

Alternative exhaust systems available:
1. Tubular headers following FIA regulations (110 dB standing noise) 2. Tubular headers with open exhaust 3. Tubular headers with exhaust incl. catalytic converters homologated for DMSB and Spa 24 Hours Belcar category

Electrical System

12 Volt
Motec display with data recording
Battery capacity 45 A-h
Alternator 140 A-h

Optional:
Bosch Memory Card
Traction control

Power Train

Transmission via dual constant velocity joint driveshafts on the rear axle Manual sequential six-speed dog type transmission, “inline“ shift mechanism Sensor controlled ignition interruption Oil-water heat-exchanger

Single-mass flywheel with triple-disc fibre race clutch Clutch diameter 4.5 inches (114.3 mm)

Limited slip differential 40/60 percent (or alternative)

Suspension

Front axle: Strut type suspension (optimised by Porsche) with unibal joints and corresponding modifications of kinematics, independent wheel suspension on transverse control arms, longitudinal arms and spring struts, double coil springs (master and auxiliary) adjustable in different positions, ZF-Sachs gas pressure dampers (Through Rod System), separated track control arms, adjustable front blade-type roll bar, wheel mounts with double damper clamps, electrically-powered power steering Rear axle: Multilink rear suspension with unibal joints and corresponding modifications of kinematics, independent wheel suspension (five arms), rigid suspended subframe, double coil springs (master and auxiliary) adjustable in different positions, ZF-Sachs gas pressure dampers (Through Rod System), separated track control arms, rear axle tie rod strengthened and continuously adjustable, adjustable blade-type roll bar

Adjustable geometry suspension (height, camber, track)

Brakes

Two-circuit brake system with front/rear circuit separation and brake-power distribution by bias bar system, no ABS, six aluminium monoblock callipers at the front, four-piston aluminium monoblock callipers at the rear, cross-drilled, internally vented brake discs measuring 380 x 35 mm diameter/width at the front and 355 x 32 mm diameter/width at the rear

Rims/Wheels

Front axle: 11J with Michelin slicks 27/65-18 Rear axle: 13 J with Michelin slicks 31/71-18


Weight

1,225 kg following A.C.O and FIA GT regulations Power-to-weight ratio: 3.3 kg/kW (2.5 kg/hp)

Measurements

Length 4,439 mm +/- 5 mm
Width 1,957 mm +/- 5 mm
Height maximum 1,250 mm

Wheel base 2,373 mm

Track width
Front 1,565 mm (3.5 degree camber)
Rear 1,620 mm (3.0 degree camber)

Tank capacity 100-litre safety fuel cell with quick refuelling system
Quantity for 2007 35
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Old 07-25-2006, 09:25 AM   #2
Nico Flax
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2008 CBR1000

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That is one fine race car
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Old 07-25-2006, 10:04 AM   #3
Sneuxstorm
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Location: Los Angeles
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95 Impreza 2.2L LX
Green Like a Booger

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W W just W W .
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Old 07-25-2006, 10:18 AM   #4
gdspc
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Location: Columbus, OH...GO BUCKS!
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2004 Mazda6s 5dr 5sp-gray

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awesome...can't wait to see this in action.
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Old 07-25-2006, 10:25 AM   #5
FLAT4motorsports
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Join Date: Sep 2004
Location: Ontario, Canada
Vehicle:
'02 twinscroll ver8
JDM spec C hybrid 2.5L

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but the even nicer thing for the public is that the US will finally get the GT3 RS street version that North America has been without for the past decade or so....



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