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Sauber C9

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Sauber C9

Sauber C9
Category Group C Prototype
Constructor Sauber Motorsport
Designer(s) Peter Sauber
Heini Mader
Predecessor Sauber C8
Successor Mercedes-Benz C11
Technical specifications
Chassis Light alloy monocoque
Suspension (front) Double wishbones, coil springs over shock absorbers, torsion bar stabilizer
Suspension (rear) Double wishbones, push-rod operated coil springs over shock absorbers, torsion bar stabilizer
Length 189 in (480.1 cm)
Width 78 in (198.1 cm)
Height 42.1 in (106.9 cm)
Axle track 63 in (160.0 cm)
Wheelbase 106.3 in (270.0 cm)
Engine Mercedes-Benz M119 4,973 cc (303.5 cu in) HL 90º 5.0L Turbo V8 Twin KKK Turbos Mid engined, longitudinally mounted
Transmission 5-speed Manual
Weight 905 kg (1,995.2 lb)
Fuel Bosch Motronic MP 2.7 Fuel Injection
Tyres Michelin
Competition history
Notable entrants Kouros Racing
Team Sauber Mercedes
Notable drivers Jochen Mass
Manuel Reuter
Stanley Dickens
Mauro Baldi
Kenny Acheson
Gianfranco Brancatelli
Jean-Louis Schlesser
Jean-Pierre Jabouille
Alain Cudini
Debut 1987 1000km of Spa
Races Wins Poles F.Laps
21 13 7 5
Teams' Championships 1 (1989)
Constructors' Championships 1 (1989)
Drivers' Championships 1 (Jean-Louis Schlesser, 1989)

The Sauber C9 (later named the Sauber Mercedes C9 or Mercedes-Benz C9) was a Group C prototype race car introduced in 1987 as a continuation of the partnership between Sauber as a constructor and Mercedes-Benz as an engine builder for the World Sportscar Championship. The C9 replaced the previous Sauber C8.

History

For its debut season in 1987, the cars were run by Kouros Racing, named after the fragrance brand of its sponsor, Yves Saint Laurent, although officially backed by Mercedes-Benz. The team managed a mere twelfth in the teams standings, scoring points in only a single round. For 1988, Kouros was dropped as a sponsor, forcing the team to be renamed Sauber Mercedes. As a result, Mercedes used AEG-Olympia for sponsor – AEG being owned by Daimler-Benz at the time. They managed to finish second in the championship behind Silk Cut Jaguar with five wins for the season. Unfortunately at the 24 Hours of Le Mans, the team suffered an embarrassing setback when they were forced to withdraw due to concern over their Michelin tires.

Finally, in 1989, the car was able to achieve great success. Beside replacing the black color scheme for its national plain silver scheme, reducing AEG as a minor sponsor, the older M117 5.0L turbocharged V8 engine was upgraded to the M119, which replaced steel heads with new aluminium. The C9 was able to win all but one race in the 1989 season, including the 24 Hours of Le Mans. During qualifying for Le Mans, the C9 recorded a speed of 247 mph (398 km/h) on the Mulsanne Straight, a record. Mercedes driver Jean-Louis Schlesser would end up taking the driver's championship that season.

The C9 would be replaced by the Mercedes-Benz C11 from the second race onwards of the 1990 season, where it took one final win.

Achievements

Reaching 248.0 mph (400 km/h) during the qualifying sessions of the 1989 24 Hours of Le Mans, the Sauber C9 has set one of the fastest top speeds ever in the history of the competition at Le Mans. These speeds led to the cessation on the huge Le Mans Mulsanne Straight and the introduction of two chicanes, from 1990 onwards.

The C9's top speed was only beaten by the WM Peugeot prototype, with a speed of 251.1 mph (405 km/h) in the 1988 race.[1] However the WM, optimized for a low drag setup and high straight line speed, suffered from handling problems elsewhere on the circuit and the engine was prone to overheating. Indeed the car's fastest time was set with tape applied over the ducting for aerodynamic purposes and was withdrawn as soon as a new record was set to avoid an expensive rebuild.

Complete 24 Hours of Le Mans results

Year Class No. Team Drivers Laps Pos. Class
Pos.
1987 C1 61 Kouros Racing Mike Thackwell
Henri Pescarolo
Hideki Okada
123 DNF DNF
C1 62 Kouros Racing Chip Ganassi
Johnny Dumfries
Mike Thackwell
37 DNF DNF
1988 C1 61 Team Sauber Mercedes Mauro Baldi
James Weaver
Jochen Mass
DNS DNS
C1 62 Team Sauber Mercedes Klaus Niedzwiedz
Kenny Acheson
DNS DNS
1989 C1 61 Team Sauber Mercedes Mauro Baldi
Kenny Acheson
Gianfranco Brancatelli
384 2nd 2nd
C1 62 Team Sauber Mercedes Jean-Louis Schlesser
Jean-Pierre Jabouille
Alain Cudini
378 5th 5th
C1 63 Team Sauber Mercedes Jochen Mass
Manuel Reuter
Stanley Dickens
389 1st 1st

Gallery

See also

References

Notes

  1. ^ Mulsanne's Corner: Maximum Speeds at Le Mans, 1961-1989

Bibliography

External links

  • Sauber F1 Team – corporate history
Awards
Preceded by
McLaren MP4/4
Autosport
Racing Car Of The Year

1989
Succeeded by
Tyrrell 019
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