Home > 2011 circuits > Sepang circuit braking analysis

Sepang circuit braking analysis


Sepang circuit main characteristics :

Circuit Length: 5.543 km
Race Distance: 310.408 km
Number of Laps: 56

Brake Wear: Medium

Downforce Level: Medium/High
Tyre Usage: Medium

TyreCompounds: soft (option) / hard (prime)

Time spent under braking :  13 %

Number of braking zones :  9

 

 

2011 – 2010  braking data comparison chart

  Kurve 1 Kurve 2 Kurve 3 Kurve 4
Initial speed 2011  Km/h  :

307

128

295

272

Initial speed 2010  Km/h :

303

127

289

273

Difference :

4

1

6

-1

Final speed 2011  Km/h :

104

81

114

208

Final speed 2010 Km/h :

110

89

121

204

Difference :

-6

-8

-7

4

Stopping distance 2011 m :

109

27

92

33

Stopping distance 2010 m :

123

24

107

45

Difference : 

-14

3

-15

-12

Braking time 2011  sec :

2,15

0,98

1,78

0,51

Braking time 2010 sec  :

2,35

0,8

2,01

0,69

Difference : 

-0,2

0,18

-0,23

-0,18

Maximum deceleration 2011 g :

5,38

1,95

5,1

4,55

Maximum deceleration 2010 g  :

4,14

1,67

3,87

3,57

Difference : 

1,24

0,28

1,23

0,98

Maximum pedal load 2011 Kg :

139

46

133

118

Maximum pedal load 2010 Kg :

117

42

109

101

Difference : 

22

4

24

17

Braking power 2011 KW  :

2236

301

2045

1685

Braking power 2010 KW  :

1660

241

1497

1297

Difference : 

576

60

548

388

 

 

 

  Kurve 5 Kurve 6 Kurve 8 Kurve 9
Initial speed 2011  Km/h  :

284

239

207

307

Initial speed 2010  Km/h :

280

233

248

301

Difference :

4

6

-41

6

Final speed 2011  Km/h :

79

160

128

97

Final speed 2010 Km/h :

86

162

136

102

Difference :

-7

-2

-8

-5

Stopping distance 2011 m :

104

43

61

113

Stopping distance 2010 m :

122

47

84

125

Difference : 

-18

-4

-23

-12

Braking time 2011  sec :

2,37

1,8

1,37

2,28

Braking time 2010 sec  :

2,65

0,88

1,64

2,49

Difference : 

-0,28

0,92

-0,27

-0,21

Maximum deceleration 2011 g :

4,82

3,81

3,06

5,38

Maximum deceleration 2010 g  :

3,7

2,9

3,09

4,09

Difference : 

1,12

0,91

-0,03

1,29

Maximum pedal load 2011 Kg :

125

96

77

139

Maximum pedal load 2010 Kg :

105

79

85

115

Difference : 

20

17

-8

24

Braking power 2011 KW  :

1860

1229

849

2236

Braking power 2010 KW  :

1377

967

1014

1632

Difference : 

483

262

-165

604

 

 

 

Once again it is clear from the chart above that 2011 cars suffer much greater deceleration energy  due to KERS and DRS . However in low speed corner 2 , which follows a short stretch , the stopping distance is significantly increased, but the opposite outcome should be expected as both Maximum deceleration and braking time are  by great percentage increased ( despite the greater top speed at the end of the stretch ) ! . This observation is unique and to the opposite trend compared to car behavior on the rest corners. A logical explanation is hidden on tyre compound differences between this season Pirelli and last season Bridgetone tyres, showing that Pirelli ones offer less mechanical grip leading to longer stopping distances. Another fact indicating less mechanical grip provided by Pirelli tyres is the lower speed entering a corner after a stretch ( final speed in the chart above ) .

data source : Brembo

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