jrotsaert

Hey guys, I've looked all over the internet and this forum and I can't find much about the real differences between these 3 awesome race cars.
I've seen the threads about the gt3 cup differences (I have a 2003 actually) but I can't find much about the R/RS/RSR. I have clues but would love details...
Can anyone help?
Thanks
JM

tar6day

Type in Tar6day for user name in the search feature and there will be a very detailed post on this very topic.

jrotsaert

I saw the very detailed post on cup car evolution but very little on the R/RS/RSR.
Am I missing something?

THX
JM

jrotsaert

Found this at
http://www.forocoches.com/foro/showthread.php?t=122515



2000 GT3 R specfications

Porsche 911 GT3 R
2000 Vehicle Description (according to 2000 ACO Le Mans Regulations)

Engine

six cylinder boxer engine
3600 cc 76.4 mm. stroke, 100mm bore
maximum torque 380 Nm @ 7000 rpm
power 300 KW (410 HP) @ 8200 rpm with 43.1 mm restrictor
maximum rpm 8500
water cooled with oil heat exchanger
dry-sump lubrication
intake system with six throttle valves
Bosch MS 3.1 fuel injection with detonation control
exhaust manifold open, without catalytic converter
108 RON octane leaded fuel

Power Train

six speed manual transmission type G96/61 with oil cooler cable controlled gear shift mechanism
rear wheel drive
single mass flywheel with racing clutch
limited slip differential -- 40/65%
gear ratios (as delivered)
ring and pinion 7/35

* 1st gear 13/41
* 2nd gear 20/40
* 3rd gear 25/29
* 4th gear 29/36
* 5th gear 32/33
* 6th gear 35/30

Bodywork

revised 996 chassis with front and rear composite fender flares
composite front nose, front fenders, front and rear hood, doors, rear tail and rear lid
aerodynamically optimized front nose and rear tail
welded-in safety roll cage
racing bucket seat (driver only)
six-point seat belt/harness
MOMO steering wheel
fire extinguisher
100 liter FT 3 safety fuel cell
air jacks
plastic door, side and rear windows

Suspension

electrically actuated power steering
McPherson front suspension with ball joints
multilink rear axle with ball joints
coil spring with adjustable ride height and rate
Bilstein adjustable shock absorbers
wheels three piece BBS
front - 10" X 18"
rear - 11" X 18"
Pirelli rain tires
front 265/645 X 18
rear 295/680 X 18
center lock hubs/wheels
front roll bar adjustable in five positions
rear roll bar adjustable in three positions
drive shafts with CV joints

Brake System

twin pedal system with two master cylinders and balance bar
internally vented brake discs
front - 380mm diameter
rear - 355 mm diameter
no ABS

Electronics

Bosch MS 3.1 engine management
Stack display with integrated data recording (data recording device: optional)
lap trigger over Stack display
12V 50 Ah battery
alternator 110 amp

Vehicle weight

Approximately 1,100 kg (2442 lb.) per Le Mans Regulations

Delivery

December through March 2000

Color Exterior and interior

Biarritz white Z2
Options
Guards red G1
Black A1
Speed yellow X4

Optional equip.

All data as of August 1999. All data subject to change without notice. All previously published technical data and prices no longer valid. Vehicles cannot be registered for public road use.











2001 GT3 RS specifications

Concept

Porsche 911 GT3 RS
single-seated, near-standard race vehicle
in accordance with the 2001 ACO-Regulations or the 2001 FIA Regulations
basis: 911 GT3

Engine

flat six-cylinder boxer engine, water cooled
3598 cc - 76.4 mm stroke, 99.99 mm bore
max. torque - 390 Nm @ 7000 rpm
power - 420 hp @ 8200 rpm with 2 X 30.8 mm diameter restrictor
max. rpm - 8500
four-valve technology
oil-cooler (oil-water heat exchanger)
dry-sump lubrication
pressurized oil and cooling water refilling system
intake manifold with single throttle valves and 2 x 30.8 mm diameter restrictor
Bosch MS 3.1 fuel injection management system with ignition control
required fuel quality: 98 ROZ octane unleaded fuel
race exhaust: multiple pipe manifold, open exhaust, no catalytic converter (exhaust muffler can be retrofitted)

Power Train

six speed manual transmission type
gear ratios (as delivered): Daytona ratio different!
ring and pinion gear 7/35
1st gear 13/41
2nd gear 20/40
3rd gear 25/39
4th gear 29/36
5th gear 32/33
6th gear 35/30
oil-water heat exchanger
single mass flywheel with triple-disc race clutch
limited slip differential - 40/65%
rear wheel drive

Body Work

revised 911 chassis with front and rear plastic fender flares front end, front lid, front fenders, doors, rear lid, rear window made from plastic material
welded-in safety roll cage
three point air jack system
aerodynamically optimized front and rear part
aerodynamically optimized side sills
adjustable rear wing
racing bucket seat (driver side only) with fire retardant upholstery
six point seat belt
removable steering wheel (quick-connect coupling)
Fire extinguisher system
100 liter FT 3 safety fuel tank with quick refueling system

Suspension

McPherson front axle with ball joints and corresponding changes of kinematics (according to ACO and FIA-Regulations)
front roll bar, adjustable lever arm system, power steering, multilink rear suspensions with ball joints and corresponding changes of kinematics (according to ACO and FIA-Regulations)
rear roll bar, adjustable lever arm system
double coil springs in front and rear, adjustable in four different positions
front and rear struts with adjustable Sachs shock absorbers
suspension continuously variable adjustable heights, camber, track

Brake System

vacuum reinforced brake system without ABS, brake force balance adjustable by brake balance bar
front: six-piston fixed brake caliper with internally vented discs - brake disc diameter: 380 mm, race brake pads
rear: four-piston fixed brake caliper with internally vented discs - brake disc diameter: 380 mm, race brake pads

Rims/Tires

Front axle: three-piece BBS light aluminum rims (10J x 18 ET 1.5)
Pirelli rain tires (D6 265/645/18)

Rear axle: three-piece BBS light aluminum rims (11J x 18 ET 16)
Pirelli rain tires (D6 295/680/18)

Electronics

Bosch MS 3.1 engine management system
Motec display with integrated data recording
battery: 12V 50 Ah
additional ventilation for driver (fan)
110 Ah generator

Vehicle Weight

approx. 1100 kg

Colors

Exterior colors (water based paint): Carrera White B9a













2002 GT3 RS specfications

Concept

Porsche 911 GT3 RS
single-seated, near-standard race vehicle
2002 Vehicle Description (according to 2002 ACO/FIA Regulations)
basis: 911 GT3

Engine

Six-Cylinder Boxer: 3598 cc - 76.4mm stroke, 99.99mm bore
horsepower: 435 @ 8250 rpm (with two 30.8mm restrictors)
torque: 395 Nm @ 7200 rpm
Max RPM: 8500
Cooling: Water Cooled
Intake System: Six Individual Throttle Valves
Fuel Injection: Sequential multi-point Bosch MS 3.1 system with ignition control
Lubrication: Dry Sump with Heat Exchanger and Mobil 1 oil Exhaust System: Open without Catalytic Converter

Power Train

Transmission: Six Speed Manual, type G96/61 with oil/water heat exchanger
Gear Shift: Cable Controlled
Flywheel: Single Mass with triple disc racing clutch Differential: Limited Slip - 40/60percent

Bodywork

Chassis: Revised, Weight-optimized 911 GT3 Chassis Composites: Carbon KevlarAerodynamically Optimized Front Nose and Tail Section, Front Fenders, Front and Rear Hood, Fender Flares, Doors, Rear Tail and Lid - Plastic Door, Side, and Rear Windows
Safety: Six Point Seat Belt/Harness, Welded in Roll Cage, Quick Lock Steering Wheel, Fire Extinguisher System Seating: Racing Bucket Seat, Driver Only, Bracket for passenger seat
Fuel System: 100 Liter FT3 Safety Fuel Cell with Quick Refill System
Jacking: Three-point on board air jacks system

Suspension

Steering: Electronically Actuated Power Steering Suspension-Front: McPherson front axle with Ball Joints and corresponding changes of kinematics (to meet ACO/FIA regulations)
Suspension-Rear: Multi-Link Rear Axle with Ball Joints and corresponding changes of kinematics (to meet ACO/FIA regulations)
Springs: Double Coil Four Position Adjustable Coil Springs Shock Absorbers: Sachs Adjustable
Roll Bars: Five Position Adjustable Front, Lever Arm System Rear

Wheels

BBS Three Piece Adjustable (10"x18" Front - 11"x18" Rear) with Center Lock Hubs

Tires

Delivered with Michelin rain tires (24/64 - 18 front and 27/68 - 18 rear)

Brake System

System: Twin Pedal, Twin Master Cylinder System with Balance Bar - no ABS
Discs: Internally Vented - 380 mm Front, 355 mm Rear, racing pads

Electronics

Engine: Bosch MS 3.1 Engine Management Data
Motec display with integrated data recording
Lap Timing: Lap Trigger with Lap Recording in Display Battery: 12v 50 Ah Battery
Alternator: 110 amp

Vehicle Weight

Approximately 1,100 kg (2442 lbs) per Le Mans Regulations

Colors

Exterior colors (water based paint): Carrera White B9a











2003 GT3 RS specfications

Concept

Porsche 911 GT3 RS
single-seated, near-standard race vehicle
2003 Vehicle Description accordance with ACO-Regulations or the 2001 FIA-Regulations
basis: 911 GT3

Engine

flat six-cylinder boxer engine
water-cooled 3.598 cc, stroke 76.4 mm, bore 99.99 mm dia.
max. torque: 395 Nm at 7,200 rpm
max. power: 320 kW (435 BHP) at 8,250 rpm with 2 x 30.8 mm dia. restrictors in FIA version (power ratings in ACO version: at request)
max. rpm: 8.500 rpm four-valve technology
oil-cooler (oil-water heat exchanger)
dry-sump lubrication under pressure oil and cooling water refilling system
intake manifold with single throttle valve, with 2 x 30.8 mm dia. restrictor
electronic engine management system MS 3.1 Bosch MS 3.1 fuel injection with ignition control
required fuel quality: 98 octane ROZ, unleaded
race exhaust: multiple pipe manifold, open exhaust, no catalytic converter (rear exhaust muffler retrofit)

Power Train

six-speed manual transmission
gear ratios (as delivered):
ring & pinion gear 7/35
1st gear 13/41
2nd gear 20/40
3rd gear 25/39
4th gear 29/36
5th gear 32/33
6th gear 35/30
oil-water heat exchanger
single-mass flywheel with douple-disc race clutch
limited slip differential 40/60 per cent
rear-wheel drive

Bodywork

weight optimized and widened 911 chassis with fiberglass rear fender flares (front end, front lid, front fenders, doors, rear lid, rear window anddade and rear end made out of carbon/cevlar fibre) welded-in roll cage three-point air jack system
aerodynamically optimized front and rear part
aerodynamically optimized side sills adjustable rear wing racing bucket seat (driver side only) with fire retardant upholstery
six-point seat belt
removable steering wheel (quick-connect coupling)
fire extinguishing system 100 litre FT3 safety fuel tank with quick refuelling system

Vehicle Weight

approx.. 1,100 kg

Suspension

McPherson front axle with ball joints and corresponding changes of kinematics (according to ACO or FIA-Regulations) front roll bar, adjustable lever arm system power steering multilink rear suspension with ball joints and corresponding changes of kinematics (according to ACO or FIA-Regulations) rear roll bar, adjustable lever arm system double coil springs in front and rear adjustable in four different positions front and rear struts with adjustable Sachs shock absorbers suspension continuously variable adjustable (heights, camber, track)

Rims/Tires

Front axle: three-piece BBS light alloy rims (10J x 18 ET 1,5) with central, self-locking wheel nuts
Michelin rain tyres 24/64-18
Rear axle: three-piece BBS light alloy rims (11J x 18 ET 16) with central, self-locking wheel nuts
Michelin rain tyres 27/68-18

Brake System

without ABS, brake force balance adjustable by brake balance bar
four-piston fixed brake caliper in the front, internally vented discs, brake disc diameter: 380 mm, race brake pads
four-piston fixed brake caliper in the rear, internally vented discs, brake disc diameter: 355 mm, race brake pads

Electrics

Bosch MS 3.1 engine management Motec display with integrated data recording
battery: 12 Volt, 50 Ah
additional ventilation for driver (fan)
120 Ah generator













2004 GT3 RSR specfications

Concept

Porsche 911 GT3 RSR
single-seated, near-standard race vehicle
in accordance with FIA-Regulations (or ACO-Regulations) basis: 2004 Porsche 911 GT3 RS (street-legal version), homologated from spring 2004 onwards

Engine

flat six-cylinder boxer engine, water-cooled
3.598 cc, stroke 76.4 mm, bore 99.99 mm dia.
max. torque: 405 Nm at 7.200 rpm
max. power: 327 kW (445 BHP) at 8.250 rpm with 2 x 30.8 mm dia. restrictors in FIA version (2 x 29.2 mm dia. in ACO version; power ratings in ACO version at request)
max. rpm: 8.500 rpm
four-valve technology
oil-cooler (oil-water heat exchanger)
dry-sump lubrication
oil and cooling water quick refilling system
intake manifold with single throttle valve
electronic engine management system MS 3.1
Bosch MS 3.1 fuel injection with ignition control
required fuel quality: 98 octane ROZ, unleaded
race exhaust: multiple pipe manifold, open exhaust
no catalytic converter (rear exhaust muffler retrofit)

Power Train

sequential six-speed dog type transmission, straight cut gear
"In-line" shift mechanism, sensor controlled traction interruption
gear ratios: ring & pinion gear 8/32
1st gear 12/38
2nd gear 15/32
3rd gear 18/31
4th gear 20/29
5th gear 21/26
6th gear 24/26
oil-water heat exchanger
single-mass flywheel with triple-disc carbon fibre race clutch
limited slip differential 40/60 per cent
rear-wheel drive

Bodywork

weight optimized and widened 911 GT3 RS (street-legal version) chassis (add-on parts made out of carbon/cevlar fibre)
welded-in roll cage (in accordance with FIA-Regulations 2004)
three-point air jack system
aerodynamically optimized front and rear end aerodynamically optimized side sills
adjustable rear wing
racing bucket seat (driver side only)
with fire retardant upholstery
six-point seat belt, prepared for using HANS Safety System
removable steering wheel (with quick-connect coupling) fire extinguishing system
100 litre FT3 safety fuel cell with quick refuelling system

Vehicle Weight

approx.. 1,100 kg

Suspension

McPherson front axle with ball joints and corresponding changes of kinematics (according to ACO or FIA-Regulations)
adjustable front roll bar, blade type
power steering
multilink rear suspension with ball joints and corresponding changes of kinematics (according to ACO or FIA-Regulations)
adjustable rear roll bar, blade type
double coil springs in front and rear
adjustable in four different positions
front and rear struts with adjustable Sachs shock absorbers
suspension continuously adjustable (heights, camber, track)

Rims/Tires

Front axle: three-piece BBS light alloy rims (10J x 18 ET 1,5) with central, self-locking wheel nuts
Michelin rain tyres 24/64-18
Rear axle: three-piece BBS light alloy rims (11J x 18 ET 16) with central, self-locking wheel nuts
Michelin rain tyres 27/68-18
(central wheel nuts with pin locking device in ACO version)

Brake System

without ABS, brake force balance adjustable by brake balance bar
four-piston fixed brake caliper in the front, internally vented discs, brake disc diameter: 380 mm, race brake pads
four-piston fixed brake caliper in the rear, internally vented discs, brake disc diameter: 355 mm, race brake pads

Electrics

Bosch MS 3.1 engine management Motec display with integrated data recording
battery: 12 Volt, 50 Ah
additional ventilation for driver (fan)
120 Ah generator

kurquhart

The latest issue of Christophus magazine explained that the RS is designed for sprint races, while the RSR has been developed for endurance racing.

Rick964

I've always understood that R,RS, RSR is a an evoulution of the GT3 race cars, separate from the Cup cars. Porsche released the R first, made improvements a couple of years later and called it the RS and then a few years later updated the cars to the RSR. Porsche never produced the RS and RSR as different models with different purpose in the same model year.

kurquhart

I have to admit I have no personal experience, I am merely quoting from a magazine owned by Porsche AG.

Greg Fishman

http://www.porsche.com/usa/eventsand...ry/racingcars/

The end all page of Porsche race cars.

DrJupeman

No 550.

cbracer

If you're going to buy one, buy the newest model year you can!!! There were so many changes from year to year on all sorts of stuff. It's worth spending the money to get a newer one. Forget the R model, a newer Cup car is better than that. RS minimum, prefer RSR though the sequential is a bit more expensive.

jrotsaert

Thanks, it's an RSR that started life as an RS that I'm after... Lightweight engine, sequential box, etc.

Bull

Or 911R (1967, 906 engine, first pure race 911), or 911TR, or 911ST. Have they forgotten the pre-'73 race 911s?????