Ring Leader : Porsche 911 (997) GT3 RS.2

Car Specifications
3797cc, 24-valves (full specs below)
Cylinder Layout: 
Horizontally-opposed 6-cylinder
Top Speed: 
6-Speed Manual
4 seconds
450bhp at 7900rpm
430Nm at 6750rpm

997 GT3 RS.2   

Delivering even more engine power, offering lower weight, and featuring shorter transmission ratios as well as body and suspension elements upgraded to an even higher standard, the new 911 GT3 RS sets the foundation for homologating the racing version of the 911 GT3 and therefore offers everything it takes for ongoing success on the race track, continuing the series of absolutely uncompromising, sporting 911s homologated for the road.

The heart of the new 911 GT3 RS, the power unit, is based on the engine already featured in the 911 GT3.
Like the latter, the RS power unit now displaces 3.8 instead of 3.6L, delivering even more power and revving up even faster and more dynamically.

The engine featured in the new 911 GT3 RS delivers 15 bhp more than its counterpart in the 911 GT3, that is maximum output of 450 horsepower from the fast-revving naturally-aspirated power unit.

This means specific output of more than 118 bhp per litre from the six-cylinder, an extremely high figure for natural-aspiration technology even in the strictest worldwide comparison.

And unlike many other high-performance engines, the power unit in the new 911 GT3 RS remains fully suitable for everyday use.
The new 911 GT3 RS comes exclusively with a six-speed manual gearbox optimised for short gearshift travel, low weight and high efficiency.
Optional Li-On battery reduces weight by 10kg!

To enhance the level of performance throughout the entire range of engine and road speed, the gears come with a shorter transmission ratio than on the 911 GT3, deliberately making concessions in terms of even higher top speed.

To further improve its sporting behaviour, the new 911 GT3 RS comes for the first time with a purpose-built and specially set up PASM suspension, with wider track not only at the rear, but also on the front axle.

Accordingly, the body of the new 911 GT3 RS is wider not only at the rear, but also at the front through the use of additional wheel arch covers.

The front axle comes with nine-inch-wide wheels running on 245/35 ZR 19 sports tyres, the rear axle features twelve-inch-wide wheels incorporating 325/30 ZR 19 sports tyres.
The dynamic engine mounts featured as standard also serve to improve the car’s driving dynamics to an even higher level.

Depending on driving conditions, the mounts change in their stiffness and damping effect, improving the connection between the engine and the body when driving under very dynamic conditions.

As yet a further point the car’s aerodynamics develop even more downforce than on the GT3, again benefiting the qualities of the car on the race track.

Racing qualities are also why Porsche is introducing another new option in 2010, a lithium-ion battery delivered with the car and, replacing the conventional lead battery, reducing weight by more than 10 kg.

The new 911 GT3 RS shows its close connection to motorsport also through the dynamic looks of the car borne out in particular by its low ride height, the new, extra-large carbon-fibre rear wing with its specifically designed wing supports made of aluminium, the characteristic dual tailpipes on the extra-light titanium sports exhaust, as well as special front and rear parts exclusive to this model.

photos by mp
FAST FACTS : Porsche 911 GT3 RS.2
Two-seater coupé; monocoque, fully hot-galvanised lightweight steel body with doors and bootlid made of aluminium; plastic rear window; driver and front passenger airbags operating in two stages; side and head airbags for driver and front passenger.

Aerodynamics: Drag coefficient Cd = 0.33
Frontal area A = 2.07 sq m
Cd x A = 0.68

Power Unit
Water-cooled horizontally-opposed six-cylinder; engine block and cylinder heads made of aluminium; four overhead camshafts, four valves per cylinder, variable valve timing on intake side and valve lift switchover (VarioCam Plus); hydraulic valve play compensation; four-stage, switchable intake manifold; two three-way catalytic converters on each row of cylinders, each with two oxygen sensors; dry sump lubrication; 11L engine oil; electronic ignition with solid-state distributor (six ignition coils).

Bore: 102.7 mm
Stroke: 76.4 mm
Capacity: 3797 cc
Compression Ratio: 12.2:1
Engine Output: 450 bhp at 7900 rpm
Max Torque: 430 Nm at 6750 rpm
Output per Litre: 118.4 bhp
Max Engine Speed: 8500 rpm
Fuel Grade: Premium Plus

Electrical System
12 V; 2100 W three-phase alternator; 60 Ah, 280 A battery

Power Transmission
Engine and gearbox bolted to form one drive unit; six-speed manual gearbox.
Gear ratios
1st 3.82
2nd 2.26
3rd 1.64
4th 1.29
5th 1.06
6th 0.88
Reverse 2.86
Final drive: 3.89
Clutch diameter 240 mm

Chassis and Suspension
Spring strut axle in McPherson design optimised by Porsche with independent wheel suspension on forged track control arms, longitudinal arms and spring struts; conical stump springs with inner-mounted vibration dampers; Unibal- support mounts.

Multi-arm axle with independent suspension on five arms; progressive barrel springs with co-axial inner-mounted vibration dampers.
PASM Porsche Active Suspension Management with electronically controlled vibration dampers lowering the car by 30mm; two control maps for manual selection; mechanical rear axle differential.

Twin-circuit brake system split front-to-rear.
Front: Six-piston aluminium monobloc brake callipers; cross-drilled and innervented brake discs measuring 380mm in diameter and 34mm across.

Rear: Four-piston aluminium monobloc brake callipers; crossdrilled and inner-vented brake discs measuring 350 mm in diameter and 28mm across.
PSM Porsche Stability Management deactivated on demand in individual steps; vacuum brake servo.

Wheels and Tyres
Front 9 J x 19 on 245/35 ZR 19
Rear 12 J x 19 on 325/30 ZR 19

Unladen, to DIN 1370 kg
Max permissible 1680 kg

Length 4460 mm
Width 1852 mm
Height 1280 mm
Wheelbase 2355 mm
Track: front 1509 mm/rear 1554 mm
Luggage capacity: front 105L/ rear 205L
Tank capacity 67L
optional 90L

Top speed 310 km/h
Acceleration 0 – 100 km/h 4.0 sec / 0 – 200 km/h 12.2 sec

Fuel Consumption
(NEDC) to EU5: Urban 19.4 ltr/100 km
Extra-urban 9.6 ltr/100 km
Combined 13.2 ltr/100 km
CO2 Emissions to EU5: 314g/km

Optional Li-On battery reduces weight by 10kg!
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