The Open Racing Car Simulator Download

Track-4WD-GrB 155-DTM

155 DTM

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

Front three-quarter view of 155 DTM
Front three-quarter
Side view of 155 DTM
Side
Rear three-quarter view of 155 DTM
Rear three-quarter
Peak power
358 kW 480 hp at 12,000 rpm
Peak torque
314 N·m at 10,000 rpm
Mass incl. driver
1,115 kg excluding fuel
Power / mass
321 kW/t 431 hp/t
Fuel
30.0 L 82.0 L tank
Transmission
6 gears 4WD
Top-gear limiter speed
307.2 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. 07915723631403,1256,2509,37512,500 090179269358Power, kW Engine speed, rpm Torque, N·m TorquePower
Engine output Torque (Nm) Power (kW)
Engine chart data
RPMTorque (N·m)Power (kW)
1,900156.031.0
2,000160.033.5
3,000199.062.5
4,000229.095.9
5,000254.0133.0
6,000269.0169.0
7,000282.0206.7
8,000294.0246.3
9,000311.0293.1
10,000314.0328.8
11,000303.0349.0
12,000285.0358.1
12,500272.5356.7
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. 03,1256,2509,37512,500077154230307 Road speed, km/h Engine speed, rpm
Gearing Optimal shift path Fitted n = a·v1/4.69 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
12.53378.878.812,500 to 8,141
21.650121.0121.012,500 to 9,154
31.208165.3165.312,500 to 9,962
40.963207.4207.412,500 to 9,952
50.767260.5260.512,500 to 10,598
60.650307.2Top 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)
-0.750-0.936-0.936
-0.700-0.942-0.942
-0.650-0.948-0.948
-0.600-0.954-0.954
-0.550-0.960-0.960
-0.500-0.967-0.967
-0.450-0.974-0.974
-0.400-0.981-0.981
-0.350-0.988-0.988
-0.300-0.994-0.994
-0.250-0.999-0.999
-0.200-0.999-0.999
-0.150-0.990-0.990
-0.100-0.951-0.951
-0.050-0.787-0.787
0.0000.0000.000
0.0500.7870.787
0.1000.9510.951
0.1500.9900.990
0.2000.9990.999
0.2500.9990.999
0.3000.9940.994
0.3500.9880.988
0.4000.9810.981
0.4500.9740.974
0.5000.9670.967
0.5500.9600.960
0.6000.9540.954
0.6500.9480.948
0.7000.9420.942
0.7500.9360.936
Front tire static-load force versus slip ratio Front axle tire model force plotted against pure slip ratio in N units. -4,601-2,30102,3014,601-0.75-0.380.000.380.75 Longitudinal slip ratio Force, N
Front tire, slip ratio, static corner-load force
Front tire slip ratio chart data
Slip ratioNormalized forceDisplayed force (N)
-0.750-0.936-4,309
-0.700-0.942-4,333
-0.650-0.948-4,360
-0.600-0.954-4,387
-0.550-0.960-4,417
-0.500-0.967-4,448
-0.450-0.974-4,480
-0.400-0.981-4,513
-0.350-0.988-4,546
-0.300-0.994-4,575
-0.250-0.999-4,596
-0.200-0.999-4,599
-0.150-0.990-4,555
-0.100-0.951-4,376
-0.050-0.787-3,622
0.0000.0000
0.0500.7873,622
0.1000.9514,376
0.1500.9904,555
0.2000.9994,599
0.2500.9994,596
0.3000.9944,575
0.3500.9884,546
0.4000.9814,513
0.4500.9744,480
0.5000.9674,448
0.5500.9604,417
0.6000.9544,387
0.6500.9484,360
0.7000.9424,333
0.7500.9364,309
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)
-30.0-0.967-0.967
-27.5-0.972-0.972
-25.0-0.978-0.978
-22.5-0.983-0.983
-20.0-0.989-0.989
-17.5-0.994-0.994
-15.0-0.998-0.998
-12.5-1.000-1.000
-10.0-0.996-0.996
-7.5-0.980-0.980
-5.0-0.929-0.929
-2.5-0.739-0.739
0.00.0000.000
2.50.7390.739
5.00.9290.929
7.50.9800.980
10.00.9960.996
12.51.0001.000
15.00.9980.998
17.50.9940.994
20.00.9890.989
22.50.9830.983
25.00.9780.978
27.50.9720.972
30.00.9670.967
Front tire static-load force versus slip angle Front axle tire model force plotted against pure slip angle in N units. -4,601-2,30102,3014,601-30-1501530 Slip angle, ° Force, N
Front tire, slip angle, static corner-load force
Front tire slip angle chart data
Slip angle (°)Normalized forceDisplayed force (N)
-30.0-0.967-4,448
-27.5-0.972-4,473
-25.0-0.978-4,498
-22.5-0.983-4,525
-20.0-0.989-4,551
-17.5-0.994-4,575
-15.0-0.998-4,594
-12.5-1.000-4,601
-10.0-0.996-4,584
-7.5-0.980-4,511
-5.0-0.929-4,276
-2.5-0.739-3,402
0.00.0000
2.50.7393,402
5.00.9294,276
7.50.9804,511
10.00.9964,584
12.51.0004,601
15.00.9984,594
17.50.9944,575
20.00.9894,551
22.50.9834,525
25.00.9784,498
27.50.9724,473
30.00.9674,448
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)
-0.750-0.936-0.936
-0.700-0.942-0.942
-0.650-0.948-0.948
-0.600-0.954-0.954
-0.550-0.960-0.960
-0.500-0.967-0.967
-0.450-0.974-0.974
-0.400-0.981-0.981
-0.350-0.988-0.988
-0.300-0.994-0.994
-0.250-0.999-0.999
-0.200-0.999-0.999
-0.150-0.990-0.990
-0.100-0.951-0.951
-0.050-0.787-0.787
0.0000.0000.000
0.0500.7870.787
0.1000.9510.951
0.1500.9900.990
0.2000.9990.999
0.2500.9990.999
0.3000.9940.994
0.3500.9880.988
0.4000.9810.981
0.4500.9740.974
0.5000.9670.967
0.5500.9600.960
0.6000.9540.954
0.6500.9480.948
0.7000.9420.942
0.7500.9360.936
Rear tire static-load force versus slip ratio Rear axle tire model force plotted against pure slip ratio in N units. -4,601-2,30102,3014,601-0.75-0.380.000.380.75 Longitudinal slip ratio Force, N
Rear tire, slip ratio, static corner-load force
Rear tire slip ratio chart data
Slip ratioNormalized forceDisplayed force (N)
-0.750-0.936-4,309
-0.700-0.942-4,333
-0.650-0.948-4,360
-0.600-0.954-4,387
-0.550-0.960-4,417
-0.500-0.967-4,448
-0.450-0.974-4,480
-0.400-0.981-4,513
-0.350-0.988-4,546
-0.300-0.994-4,575
-0.250-0.999-4,596
-0.200-0.999-4,599
-0.150-0.990-4,555
-0.100-0.951-4,376
-0.050-0.787-3,622
0.0000.0000
0.0500.7873,622
0.1000.9514,376
0.1500.9904,555
0.2000.9994,599
0.2500.9994,596
0.3000.9944,575
0.3500.9884,546
0.4000.9814,513
0.4500.9744,480
0.5000.9674,448
0.5500.9604,417
0.6000.9544,387
0.6500.9484,360
0.7000.9424,333
0.7500.9364,309
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)
-30.0-0.967-0.967
-27.5-0.972-0.972
-25.0-0.978-0.978
-22.5-0.983-0.983
-20.0-0.989-0.989
-17.5-0.994-0.994
-15.0-0.998-0.998
-12.5-1.000-1.000
-10.0-0.996-0.996
-7.5-0.980-0.980
-5.0-0.929-0.929
-2.5-0.739-0.739
0.00.0000.000
2.50.7390.739
5.00.9290.929
7.50.9800.980
10.00.9960.996
12.51.0001.000
15.00.9980.998
17.50.9940.994
20.00.9890.989
22.50.9830.983
25.00.9780.978
27.50.9720.972
30.00.9670.967
Rear tire static-load force versus slip angle Rear axle tire model force plotted against pure slip angle in N units. -4,601-2,30102,3014,601-30-1501530 Slip angle, ° Force, N
Rear tire, slip angle, static corner-load force
Rear tire slip angle chart data
Slip angle (°)Normalized forceDisplayed force (N)
-30.0-0.967-4,448
-27.5-0.972-4,473
-25.0-0.978-4,498
-22.5-0.983-4,525
-20.0-0.989-4,551
-17.5-0.994-4,575
-15.0-0.998-4,594
-12.5-1.000-4,601
-10.0-0.996-4,584
-7.5-0.980-4,511
-5.0-0.929-4,276
-2.5-0.739-3,402
0.00.0000
2.50.7393,402
5.00.9294,276
7.50.9804,511
10.00.9964,584
12.51.0004,601
15.00.9984,594
17.50.9944,575
20.00.9894,551
22.50.9834,525
25.00.9784,498
27.50.9724,473
30.00.9674,448

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
4.800 m
Width
1.920 m
Height
1.220 m
Wheelbase
2.670 m
Front track
1.620 m
Rear track
1.640 m

Engine

Tickover
1,900 rpm
Limiter
12,500 rpm
Maximum authored RPM
13,000 rpm
Rotational inertia
0.200 kg·m2
Fuel consumption factor
1.200
Torque at limiter
272.5 N·m

Transmission and differentials

Layout
4WD
Shift time
0.100 s
Final drive
7.500
Driven wheel radius
0.318 m
Gear ratios
1: 2.533; 2: 1.650; 3: 1.208; 4: 0.963; 5: 0.767; 6: 0.650
Differentials
front: LIMITED SLIP (1.000); rear: LIMITED SLIP (1.000); central: VISCOUS COUPLER (7.500)

Aerodynamics

Drag coefficient
0.310
Frontal area
2.100 m2
CdA
0.651 m2
Front / rear lift coefficient
0.200 / 0.200
Front wing
0.500 m2 at 10.0°
Rear wing
0.800 m2 at 9.0°

Mass distribution and static corner loads

Configured mass
1,115.0 kg (incl. driver, excl. fuel)
CG height
0.240 m
Front / rear
50.0% / 50.0%
Front right / left
278.8 / 278.8 kg
Rear right / left
278.8 / 278.8 kg

Tires

Front size
255/35 R18
Front radius
0.318 m
Front tire friction multiplier
1.60
Front sliding / peak ratio
0.80
Front stiffness / Magic Formula
24.000; B 17.025, C 1.410, E 0.700
Rear size
255/35 R18
Rear radius
0.318 m
Rear tire friction multiplier
1.60
Rear sliding / peak ratio
0.80
Rear stiffness / Magic Formula
24.000; B 17.025, C 1.410, E 0.700

Controls

Steering lock
21.0°
Front brake fraction
50.0%
Maximum brake pressure
18,000 kPa

Suspension and ride frequency

Front right
509.9 lbf/in; 2.85 Hz
Front right bellcrank / wheel rate
1.000 / 509.9 lbf/in
Front left
509.9 lbf/in; 2.85 Hz
Front left bellcrank / wheel rate
1.000 / 509.9 lbf/in
Rear right
509.9 lbf/in; 2.85 Hz
Rear right bellcrank / wheel rate
1.000 / 509.9 lbf/in
Rear left
509.9 lbf/in; 2.85 Hz
Rear left bellcrank / wheel rate
1.000 / 509.9 lbf/in

Default setup sheet

Aerodynamics

Front Wing

SettingDefault
angle 10.0°

Rear Wing

SettingDefault
angle 9.0°

Controls

Steer

SettingDefault
steer lock 21.0°

Brake System

SettingDefault
front-rear brake repartition 0.500
max pressure 18,000 kPa

Wheels

Front Left Wheel

SettingDefault
ride height 100.0 mm
toe 0.00°
caster 5.0°
camber -5.00°

Front Right Wheel

SettingDefault
ride height 100.0 mm
toe 0.00°
caster 5.0°
camber -5.00°

Rear Left Wheel

SettingDefault
ride height 100.0 mm
toe 0.00°
camber -3.00°

Rear Right Wheel

SettingDefault
ride height 100.0 mm
toe 0.00°
camber -3.00°

Suspension

Front Left Suspension

SettingDefault
spring 510 lbf/in
packers 37.0 mm
slow bump 30.6 lbf/in/s
slow rebound 20.4 lbf/in/s
fast bump 5.1 lbf/in/s
fast rebound 11.2 lbf/in/s
fast bump threshold 9.0 cm/s
fast rebound threshold 9.0 cm/s

Front Right Suspension

SettingDefault
spring 510 lbf/in
packers 37.0 mm
slow bump 30.6 lbf/in/s
slow rebound 20.4 lbf/in/s
fast bump 5.1 lbf/in/s
fast rebound 11.2 lbf/in/s
fast bump threshold 9.0 cm/s
fast rebound threshold 9.0 cm/s

Rear Left Suspension

SettingDefault
spring 510 lbf/in
packers 30.0 mm
slow bump 30.6 lbf/in/s
slow rebound 20.4 lbf/in/s
fast bump 5.1 lbf/in/s
fast rebound 11.2 lbf/in/s
fast bump threshold 9.0 cm/s
fast rebound threshold 9.0 cm/s

Rear Right Suspension

SettingDefault
spring 510 lbf/in
packers 30.0 mm
slow bump 30.6 lbf/in/s
slow rebound 20.4 lbf/in/s
fast bump 5.1 lbf/in/s
fast rebound 11.2 lbf/in/s
fast bump threshold 9.0 cm/s
fast rebound threshold 9.0 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 third element

SettingDefault
spring 918 lbf/in
slow bump 82.6 lbf/in/s
slow rebound 45.9 lbf/in/s
suspension course 50.0 mm

Rear third element

SettingDefault
spring 918 lbf/in
slow bump 82.6 lbf/in/s
slow rebound 45.9 lbf/in/s
suspension course 50.0 mm

Front Anti-Roll Bar

SettingDefault
spring 61 lbf/in

Rear Anti-Roll Bar

SettingDefault
spring 122 lbf/in

Differentials

Front Differential

Type: Limited slip

SettingDefault
ratio 1.000
max slip bias 0.030
locking input torque 5,000 N·m
locking brake input torque 1,500 N·m

Rear Differential

Type: Limited slip

SettingDefault
ratio 1.000
max slip bias 0.030
locking input torque 5,000 N·m
locking brake input torque 500 N·m

Central Differential

Type: Viscous coupler

SettingDefault
min torque bias 33.0 %
max torque bias 33.0 %
ratio 7.500

Gearbox

Forward gears

SettingDefault
Gear 1 ratio 2.533
Gear 2 ratio 1.650
Gear 3 ratio 1.208
Gear 4 ratio 0.963
Gear 5 ratio 0.767
Gear 6 ratio 0.650