The Open Racing Car Simulator Download

stock2 car1-stock2

Car 1 Stock 2

A technical look at the in-simulator car: authored configuration, derived performance figures and default setup.

Front three-quarter view of Car 1 Stock 2
Front three-quarter
Side view of Car 1 Stock 2
Side
Rear three-quarter view of Car 1 Stock 2
Rear three-quarter
Peak power
469 kW 629 hp at 7,000 rpm
Peak torque
650 N·m at 6,000 rpm
Mass incl. driver
1,550 kg excluding fuel
Power / mass
303 kW/t 406 hp/t
Fuel
60.0 L 60.0 L tank
Transmission
4 gears RWD
Top-gear limiter speed
288.9 km/h Theoretical gearing value, not a real top-speed claim

Engineering charts

Torque and power across engine speed Solid torque in newton metres on the left axis and dashed power in kilowatts on the right axis, plotted against revolutions per minute. 016332548865001,7503,5005,2507,000 0117235352469Power, kW Engine speed, rpm Torque, N·m TorquePower
Engine output Torque (Nm) Power (kW)
Engine chart data
RPMTorque (N·m)Power (kW)
1,500340.053.4
2,000390.081.7
3,000480.0150.8
4,000560.0234.6
5,000640.0335.1
6,000650.0408.4
7,000640.0469.1
Optimal shift envelope across road speed A prominent sawtooth line follows the calculated optimal shifts. Light dashed rays show each forward gear and a smooth root curve fits the engine-speed landing points after shifts. 01,7503,5005,2507,000072144217289 Road speed, km/h Engine speed, rpm
Gearing Optimal shift path Fitted n = a·v1/2.72 Individual gears

Shift points compare wheel torque before and after each upshift. The smooth root curve is a fitted reference through the post-shift RPM points, not an authored TORCS value. Speeds are theoretical gearing values, not measured top speeds.

Gearing chart data
GearRatioLimiter speed (km/h)Shift speed (km/h)Shift RPM
12.60080.080.07,000 to 3,769
21.400148.6148.67,000 to 4,500
30.900231.1231.17,000 to 5,600
40.720288.9Top gearNot applicable
Front tire normalized force versus slip ratio Front axle tire model force plotted against pure slip ratio in normalized units. -1.00-0.500.000.501.00-0.75-0.380.000.380.75 Longitudinal slip ratio Normalized force
Front tire, slip ratio, normalized force
Front tire slip ratio chart data
Slip ratioNormalized forceDisplayed force (normalized)
-0.750-0.985-0.985
-0.700-0.988-0.988
-0.650-0.990-0.990
-0.600-0.993-0.993
-0.550-0.995-0.995
-0.500-0.997-0.997
-0.450-0.999-0.999
-0.400-1.000-1.000
-0.350-1.000-1.000
-0.300-0.998-0.998
-0.250-0.992-0.992
-0.200-0.981-0.981
-0.150-0.955-0.955
-0.100-0.895-0.895
-0.050-0.705-0.705
0.0000.0000.000
0.0500.7050.705
0.1000.8950.895
0.1500.9550.955
0.2000.9810.981
0.2500.9920.992
0.3000.9980.998
0.3501.0001.000
0.4001.0001.000
0.4500.9990.999
0.5000.9970.997
0.5500.9950.995
0.6000.9930.993
0.6500.9900.990
0.7000.9880.988
0.7500.9850.985
Front tire static-load force versus slip ratio Front axle tire model force plotted against pure slip ratio in N units. -5,373-2,68602,6865,373-0.75-0.380.000.380.75 Longitudinal slip ratio Force, N
Front tire, slip ratio, static corner-load force
Front tire slip ratio chart data
Slip ratioNormalized forceDisplayed force (N)
-0.750-0.985-5,294
-0.700-0.988-5,307
-0.650-0.990-5,320
-0.600-0.993-5,333
-0.550-0.995-5,346
-0.500-0.997-5,357
-0.450-0.999-5,366
-0.400-1.000-5,372
-0.350-1.000-5,372
-0.300-0.998-5,361
-0.250-0.992-5,332
-0.200-0.981-5,268
-0.150-0.955-5,133
-0.100-0.895-4,810
-0.050-0.705-3,787
0.0000.0000
0.0500.7053,787
0.1000.8954,810
0.1500.9555,133
0.2000.9815,268
0.2500.9925,332
0.3000.9985,361
0.3501.0005,372
0.4001.0005,372
0.4500.9995,366
0.5000.9975,357
0.5500.9955,346
0.6000.9935,333
0.6500.9905,320
0.7000.9885,307
0.7500.9855,294
Front tire normalized force versus slip angle Front axle tire model force plotted against pure slip angle in normalized units. -1.00-0.500.000.501.00-30-1501530 Slip angle, ° Normalized force
Front tire, slip angle, normalized force
Front tire slip angle chart data
Slip angle (°)Normalized forceDisplayed force (normalized)
-30.0-0.997-0.997
-27.5-0.998-0.998
-25.0-0.999-0.999
-22.5-1.000-1.000
-20.0-1.000-1.000
-17.5-0.998-0.998
-15.0-0.994-0.994
-12.5-0.985-0.985
-10.0-0.970-0.970
-7.5-0.938-0.938
-5.0-0.867-0.867
-2.5-0.655-0.655
0.00.0000.000
2.50.6550.655
5.00.8670.867
7.50.9380.938
10.00.9700.970
12.50.9850.985
15.00.9940.994
17.50.9980.998
20.01.0001.000
22.51.0001.000
25.00.9990.999
27.50.9980.998
30.00.9970.997
Front tire static-load force versus slip angle Front axle tire model force plotted against pure slip angle in N units. -5,373-2,68602,6865,373-30-1501530 Slip angle, ° Force, N
Front tire, slip angle, static corner-load force
Front tire slip angle chart data
Slip angle (°)Normalized forceDisplayed force (N)
-30.0-0.997-5,357
-27.5-0.998-5,364
-25.0-0.999-5,370
-22.5-1.000-5,373
-20.0-1.000-5,371
-17.5-0.998-5,361
-15.0-0.994-5,339
-12.5-0.985-5,295
-10.0-0.970-5,210
-7.5-0.938-5,042
-5.0-0.867-4,657
-2.5-0.655-3,521
0.00.0000
2.50.6553,521
5.00.8674,657
7.50.9385,042
10.00.9705,210
12.50.9855,295
15.00.9945,339
17.50.9985,361
20.01.0005,371
22.51.0005,373
25.00.9995,370
27.50.9985,364
30.00.9975,357
Rear tire normalized force versus slip ratio Rear axle tire model force plotted against pure slip ratio in normalized units. -1.00-0.500.000.501.00-0.75-0.380.000.380.75 Longitudinal slip ratio Normalized force
Rear tire, slip ratio, normalized force
Rear tire slip ratio chart data
Slip ratioNormalized forceDisplayed force (normalized)
-0.750-0.985-0.985
-0.700-0.988-0.988
-0.650-0.990-0.990
-0.600-0.993-0.993
-0.550-0.995-0.995
-0.500-0.997-0.997
-0.450-0.999-0.999
-0.400-1.000-1.000
-0.350-1.000-1.000
-0.300-0.998-0.998
-0.250-0.992-0.992
-0.200-0.981-0.981
-0.150-0.955-0.955
-0.100-0.895-0.895
-0.050-0.705-0.705
0.0000.0000.000
0.0500.7050.705
0.1000.8950.895
0.1500.9550.955
0.2000.9810.981
0.2500.9920.992
0.3000.9980.998
0.3501.0001.000
0.4001.0001.000
0.4500.9990.999
0.5000.9970.997
0.5500.9950.995
0.6000.9930.993
0.6500.9900.990
0.7000.9880.988
0.7500.9850.985
Rear tire static-load force versus slip ratio Rear axle tire model force plotted against pure slip ratio in N units. -5,821-2,91002,9105,821-0.75-0.380.000.380.75 Longitudinal slip ratio Force, N
Rear tire, slip ratio, static corner-load force
Rear tire slip ratio chart data
Slip ratioNormalized forceDisplayed force (N)
-0.750-0.985-5,735
-0.700-0.988-5,749
-0.650-0.990-5,763
-0.600-0.993-5,778
-0.550-0.995-5,791
-0.500-0.997-5,803
-0.450-0.999-5,814
-0.400-1.000-5,820
-0.350-1.000-5,819
-0.300-0.998-5,808
-0.250-0.992-5,776
-0.200-0.981-5,707
-0.150-0.955-5,561
-0.100-0.895-5,211
-0.050-0.705-4,102
0.0000.0000
0.0500.7054,102
0.1000.8955,211
0.1500.9555,561
0.2000.9815,707
0.2500.9925,776
0.3000.9985,808
0.3501.0005,819
0.4001.0005,820
0.4500.9995,814
0.5000.9975,803
0.5500.9955,791
0.6000.9935,778
0.6500.9905,763
0.7000.9885,749
0.7500.9855,735
Rear tire normalized force versus slip angle Rear axle tire model force plotted against pure slip angle in normalized units. -1.00-0.500.000.501.00-30-1501530 Slip angle, ° Normalized force
Rear tire, slip angle, normalized force
Rear tire slip angle chart data
Slip angle (°)Normalized forceDisplayed force (normalized)
-30.0-0.997-0.997
-27.5-0.998-0.998
-25.0-0.999-0.999
-22.5-1.000-1.000
-20.0-1.000-1.000
-17.5-0.998-0.998
-15.0-0.994-0.994
-12.5-0.985-0.985
-10.0-0.970-0.970
-7.5-0.938-0.938
-5.0-0.867-0.867
-2.5-0.655-0.655
0.00.0000.000
2.50.6550.655
5.00.8670.867
7.50.9380.938
10.00.9700.970
12.50.9850.985
15.00.9940.994
17.50.9980.998
20.01.0001.000
22.51.0001.000
25.00.9990.999
27.50.9980.998
30.00.9970.997
Rear tire static-load force versus slip angle Rear axle tire model force plotted against pure slip angle in N units. -5,821-2,91002,9105,821-30-1501530 Slip angle, ° Force, N
Rear tire, slip angle, static corner-load force
Rear tire slip angle chart data
Slip angle (°)Normalized forceDisplayed force (N)
-30.0-0.997-5,803
-27.5-0.998-5,811
-25.0-0.999-5,818
-22.5-1.000-5,820
-20.0-1.000-5,818
-17.5-0.998-5,808
-15.0-0.994-5,784
-12.5-0.985-5,736
-10.0-0.970-5,644
-7.5-0.938-5,462
-5.0-0.867-5,045
-2.5-0.655-3,814
0.00.0000
2.50.6553,814
5.00.8675,045
7.50.9385,462
10.00.9705,644
12.50.9855,736
15.00.9945,784
17.50.9985,808
20.01.0005,818
22.51.0005,820
25.00.9995,818
27.50.9985,811
30.00.9975,803

Tire curve inputs: the slip-ratio view assumes zero slip angle; the slip-angle view assumes zero longitudinal slip. During combined braking or cornering, TORCS feeds sqrt(sx^2 + sin^2(angle)) into the same tire model.

Tire force assumption: static force applies TORCS' default load-sensitivity factors to the tire friction multiplier and average configured corner load for that axle. This illustrative view assumes level ground, equal left/right load, surface friction 1 and zero camber contribution; it excludes fuel, aerodynamic load, weight transfer, skill, wear, temperature and relaxation effects.

Engineering specifications

Dimensions

Length
5.140 m
Width
1.930 m
Height
1.260 m
Wheelbase
2.800 m
Front track
1.590 m
Rear track
1.590 m

Engine

Tickover
1,500 rpm
Limiter
7,000 rpm
Maximum authored RPM
8,000 rpm
Rotational inertia
0.200 kg·m2
Fuel consumption factor
1.600
Torque at limiter
640.0 N·m

Transmission and differentials

Layout
RWD
Shift time
0.200 s
Final drive
4.500
Driven wheel radius
0.355 m
Gear ratios
1: 2.600; 2: 1.400; 3: 0.900; 4: 0.720
Differentials
rear: FREE (4.500)

Aerodynamics

Drag coefficient
0.420
Frontal area
2.100 m2
CdA
0.882 m2
Front / rear lift coefficient
0.250 / 0.300
Front wing
0.300 m2 at 13.0°
Rear wing
0.350 m2 at 16.0°

Mass distribution and static corner loads

Configured mass
1,550.0 kg (incl. driver, excl. fuel)
CG height
0.300 m
Front / rear
48.0% / 52.0%
Front right / left
372.0 / 372.0 kg
Rear right / left
403.0 / 403.0 kg

Tires

Front size
304/54 R15
Front radius
0.355 m
Front tire friction multiplier
1.40
Front sliding / peak ratio
0.90
Front stiffness / Magic Formula
20.000; B 15.538, C 1.287, E 0.700
Rear size
304/54 R15
Rear radius
0.355 m
Rear tire friction multiplier
1.40
Rear sliding / peak ratio
0.90
Rear stiffness / Magic Formula
20.000; B 15.538, C 1.287, E 0.700

Controls

Steering lock
21.0°
Front brake fraction
64.0%
Maximum brake pressure
25,000 kPa

Suspension and ride frequency

Front right
713.8 lbf/in; 2.92 Hz
Front right bellcrank / wheel rate
1.000 / 713.8 lbf/in
Front left
713.8 lbf/in; 2.92 Hz
Front left bellcrank / wheel rate
1.000 / 713.8 lbf/in
Rear right
713.8 lbf/in; 2.80 Hz
Rear right bellcrank / wheel rate
1.000 / 713.8 lbf/in
Rear left
713.8 lbf/in; 2.80 Hz
Rear left bellcrank / wheel rate
1.000 / 713.8 lbf/in

Default setup sheet

Aerodynamics

Front Wing

SettingDefault
angle 13.0°

Rear Wing

SettingDefault
angle 16.0°

Controls

Steer

SettingDefault
steer lock 21.0°

Brake System

SettingDefault
front-rear brake repartition 0.640
max pressure 25,000 kPa

Wheels

Front Left Wheel

SettingDefault
ride height 80.0 mm
toe 0.00°
caster 0.0°
camber -4.00°

Front Right Wheel

SettingDefault
ride height 80.0 mm
toe 0.00°
caster 0.0°
camber -4.00°

Rear Left Wheel

SettingDefault
ride height 100.0 mm
toe -0.30°
camber -3.00°

Rear Right Wheel

SettingDefault
ride height 100.0 mm
toe 0.30°
camber -3.00°

Suspension

Front Left Suspension

SettingDefault
spring 714 lbf/in
packers 0.0 mm
slow bump 61.2 lbf/in/s
slow rebound 40.8 lbf/in/s
fast bump 8.2 lbf/in/s
fast rebound 8.2 lbf/in/s
fast bump threshold 50.0 cm/s
fast rebound threshold 50.0 cm/s

Front Right Suspension

SettingDefault
spring 714 lbf/in
packers 0.0 mm
slow bump 61.2 lbf/in/s
slow rebound 40.8 lbf/in/s
fast bump 8.2 lbf/in/s
fast rebound 8.2 lbf/in/s
fast bump threshold 50.0 cm/s
fast rebound threshold 50.0 cm/s

Rear Left Suspension

SettingDefault
spring 714 lbf/in
packers 0.0 mm
slow bump 40.8 lbf/in/s
slow rebound 61.2 lbf/in/s
fast bump 8.2 lbf/in/s
fast rebound 8.2 lbf/in/s
fast bump threshold 50.0 cm/s
fast rebound threshold 50.0 cm/s

Rear Right Suspension

SettingDefault
spring 714 lbf/in
packers 0.0 mm
slow bump 40.8 lbf/in/s
slow rebound 61.2 lbf/in/s
fast bump 8.2 lbf/in/s
fast rebound 8.2 lbf/in/s
fast bump threshold 50.0 cm/s
fast rebound threshold 50.0 cm/s

Third elements and anti-roll bars

Each axle spring and damper set configures a third suspension element shared by its left and right wheels.

Front Anti-Roll Bar

SettingDefault
spring 0 lbf/in

Rear Anti-Roll Bar

SettingDefault
spring 0 lbf/in

Differentials

Rear Differential

Type: Free

SettingDefault
ratio 4.500

Gearbox

Forward gears

SettingDefault
Gear 1 ratio 2.600
Gear 2 ratio 1.400
Gear 3 ratio 0.900
Gear 4 ratio 0.720