The 2009 Brazilian Grand Prix Thread
Posted: Wed Oct 14, 2009 2:33 pm
Grand Prix Preview (courtesy: The FIA) - For team previews visit the 2009 F1 Team Reports Forum
The penultimate round of the 2009 FIA Formula One World Championship takes place at the José Carlos Pace Circuit in Interlagos, Brazil. Located on the outskirts of Sao Paulo, the circuit is situated between two large reservoirs. The track is constructed on a terrain featuring several gradient changes and a mix of corners. It runs in an anti-clockwise direction which will subject drivers’ necks to the opposite loadings experienced at a normal clockwise track.
The circuit features 15 corners, 10 left and 5 right, combining slow hairpins with long straights where a good top speed and low levels of downforce will be needed. The notoriously bumpy circuit will test drivers’ endurance and will require good mechanical balance for driveability. Drivers and teams will need to ensure vehicle durability in order to achieve optimal aerodynamic efficiency around the lap.
Vehicle engines will be tested on the long straights which will demand extensive periods at full throttle and high revs. The circuit is light on brakes and offers good overtaking opportunities particularly at turns one and four. Heat, humidity, driver concentration and vehicle durability will be key factors for teams to consider in preparation for the Grand Prix.

CHANGES TO THE CIRCUIT SINCE 2008
- The ‘grasscrete’ paving behind the kerb on the exit of turn 4 has been replaced with a two metre wide strip of artificial grass.
- The concrete drains behind the kerbs on the exit of turns 3, 7 and 11 have been renewed.
- The wall around the outside of turn 14 has been moved closer to and aligned parallel with the track.
- The thickness of the tyre barrier around the pit entry wall has been increased by two rows and tube inserts fitted.
- A debris fence has been fitted to the wall on the driver’s left between marshal post 18 and the pit entry.
AUTÓDROMO JOSÉ CARLOS PACE – INTERESTING FACTS
- Although often still referred to by its original name, Interlagos, the track was renamed as the Autódromo José Carlos Pace, after the Brazilian Formula One driver who died in 1977.
- Interlagos is the region the track is situated in, the name deriving from the fact that it is located between two large reservoirs, originally built to supply water and electric power to the city.
- The circuit features a long pit lane starting just before the start-finish straight and rejoining the main track after Curva do Sol (Sun Turn).
- The track is known for its slow and difficult turns: Ferradura (Horseshoe), Laranjinha (Orange Turn), Pinheirinho (Small Pine Tree), Bico de Pato (Duck Bill) and Junção (Junction).
CIRCUIT DATA
Length of lap: 4.309km
Offset: 0.030km
Total number of race laps: 71
Total race distance: 305.909km
Speed limits in the pit lane: 60km/h during practice sessions;
100km/h during qualifying and race
FORMULA ONE TIME TABLE
Friday
Practice Session 1: 10.00 - 11.30 hrs
Practice Session 2: 14.00 - 15.30 hrs
Saturday
Practice Session 3: 11.00 - 12.00 hrs
Qualifying: 14.00 - 15.00 hrs
Sunday
Race: 14.00 hrs
The penultimate round of the 2009 FIA Formula One World Championship takes place at the José Carlos Pace Circuit in Interlagos, Brazil. Located on the outskirts of Sao Paulo, the circuit is situated between two large reservoirs. The track is constructed on a terrain featuring several gradient changes and a mix of corners. It runs in an anti-clockwise direction which will subject drivers’ necks to the opposite loadings experienced at a normal clockwise track.
The circuit features 15 corners, 10 left and 5 right, combining slow hairpins with long straights where a good top speed and low levels of downforce will be needed. The notoriously bumpy circuit will test drivers’ endurance and will require good mechanical balance for driveability. Drivers and teams will need to ensure vehicle durability in order to achieve optimal aerodynamic efficiency around the lap.
Vehicle engines will be tested on the long straights which will demand extensive periods at full throttle and high revs. The circuit is light on brakes and offers good overtaking opportunities particularly at turns one and four. Heat, humidity, driver concentration and vehicle durability will be key factors for teams to consider in preparation for the Grand Prix.

CHANGES TO THE CIRCUIT SINCE 2008
- The ‘grasscrete’ paving behind the kerb on the exit of turn 4 has been replaced with a two metre wide strip of artificial grass.
- The concrete drains behind the kerbs on the exit of turns 3, 7 and 11 have been renewed.
- The wall around the outside of turn 14 has been moved closer to and aligned parallel with the track.
- The thickness of the tyre barrier around the pit entry wall has been increased by two rows and tube inserts fitted.
- A debris fence has been fitted to the wall on the driver’s left between marshal post 18 and the pit entry.
AUTÓDROMO JOSÉ CARLOS PACE – INTERESTING FACTS
- Although often still referred to by its original name, Interlagos, the track was renamed as the Autódromo José Carlos Pace, after the Brazilian Formula One driver who died in 1977.
- Interlagos is the region the track is situated in, the name deriving from the fact that it is located between two large reservoirs, originally built to supply water and electric power to the city.
- The circuit features a long pit lane starting just before the start-finish straight and rejoining the main track after Curva do Sol (Sun Turn).
- The track is known for its slow and difficult turns: Ferradura (Horseshoe), Laranjinha (Orange Turn), Pinheirinho (Small Pine Tree), Bico de Pato (Duck Bill) and Junção (Junction).
CIRCUIT DATA
Length of lap: 4.309km
Offset: 0.030km
Total number of race laps: 71
Total race distance: 305.909km
Speed limits in the pit lane: 60km/h during practice sessions;
100km/h during qualifying and race
FORMULA ONE TIME TABLE
Friday
Practice Session 1: 10.00 - 11.30 hrs
Practice Session 2: 14.00 - 15.30 hrs
Saturday
Practice Session 3: 11.00 - 12.00 hrs
Qualifying: 14.00 - 15.00 hrs
Sunday
Race: 14.00 hrs