Saturday, December 27, 2014

2011 Lexus LFA (rear wing retracted)


Physical Dimensions
mass (with 70 kg driver)
1668 kg (kilograms)
mass distribution
50.0% front, 50.0% rear
total inertia (in first gear)
1754 kg (kilograms)
height
1220 mm (millimetres)
width
1895 mm (millimetres)
length
4505 mm (millimetres)
wheelbase
2605 mm (millimetres)
track, front
1580 mm (millimetres)
track, rear
1570 mm (millimetres)


Miscellaneous Engine Specification
redline
9000 rev/min
(revolutions per minute)
speed limiter
9300 rev/min
(revolutions per minute)
total cylinder capacity
4.8 L (litres)
configuration
naturally-aspirated V10
placement
mid-front




Chassis Dynamometer Simulation














Engine Performance, Under Simulation Conditions
maximum power
566 PS (pferdestƤrke)
engine speed at maximum power
8700 rpm (revolutions per minute)
maximum torque
485 N·m (metre·newtons)
engine speed at maximum torque
6800 rpm (revolutions per minute)


Simulation Conditions
air temperature
298.15 K (Kelvin)
relative humidity
53%
barometric pressure
1017 hPa (hectoPascals)
engine correction factor
99.03%
drivetrain correction factor
98.86%

Axle Ratios
rear
(3.417:1)×(1.259:1)


Effective Gear Ratio and Driveline Loss Information

gear
ratio:1
maximum speed
ground speed
maximum power
at speed
first
3.231
9200 rpm
53.1 mph
483 PS
8549 rpm
second
2.188
9125 rpm
78.0 mph
482 PS
8547 rpm
third
1.609
9086 rpm
105.8 mph
479 PS
8536 rpm
fourth
1.233
9052 rpm
137.8 mph
471 PS
8512 rpm
fifth
0.970
8958 rpm
173.6 mph
457 PS
8463 rpm
sixth
0.795
8652 rpm
205.1 mph
437 PS
8382 rpm


Wheels and Tires
wheel sizes
9.5×20.0 front
11.5×20.0 rear
tires
Bridgestone EM98
tire sizes
265/35R20 front
305/30R20 rear
tire pressures
34.81 lb·f/in2 front
34.81 lb·f/in2 rear


Brakes
material
carbon ceramic
brake sizes
390×35 mm front
360×35 mm rear


Aerodynamics
drag coefficient
0.345
reference area
2.01 m2
(square metres)


The Ring Test
metric
Nardó Ring
Millbrook Bowl
top speed
204.507 mph
185.445 mph
steering angle
18.4°
70.9°
tire critical speed

184.533 mph


Fuel Economy
speed
(miles per hour)
fuel economy (mpg-US)
minimum
maximum
25
17.12
23.07
35
16.07
24.03
45
13.92
22.67
55
15.92
20.28
70
12.62
16.43
85
11.59
13.11
100
9.29
10.51
125
7.11
7.48
150
5.44
5.52
180
4.02
4.02
200
3.32
3.32
top speed
3.16


Additional Calculations
speed (mph)
power required to maintain speed (PS)
30
11
80
50
155
262
180
395
200
530


Gearbox Temperature
temperature
speed at temperature
200°F
196.671 mph (miles per hour)
100°C
320.349 kph (kilometres per hour)
250°F
203.344 mph (miles per hour)
130°C
328.647 kph (kilometres per hour)

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