Porsche 2708 CART
| Porsche | |
|---|---|
 Porsche 2708 CART
|
|
| 2708 CART | |
| Production period: | 1988-1990 |
| Class : | race car |
| Body versions : | Monoposto |
| Engines: |
Petrol engine : 2.6 liters (551 kW) |
| Length: | 4660 mm |
| Width: | 2010 mm |
| Height: | 980 mm |
| Wheelbase : | |
| Empty weight : | 703 kg |
The Porsche 2708 CART is a racing car from Dr.-Ing. hc F. Porsche AG .
history
1988 Porsche chassis
At the beginning of the 1988 season, Porsche took part in the US CART series . The car was completely redesigned, the aluminum-plastic monocoque and the V8 engine developed by Hans Mezger were specially designed for this purpose. The latter was the main element of the vehicle. Methanol was used as fuel , a requirement of the CART regulations.
Al Holbert , who had won Le Mans three times in a Porsche 956 sports car and was fourth in the Indianapolis 500 in 1984, was a test driver but died in a plane crash in September 1988. Another driver was the 1987 Indy winner, Al Unser , who was 49 years old at the time. The Porsche-owned car disappointed on both high-speed ovals and normal routes. In Indianapolis, Teo Fabi or the green and white Quaker State / Porsche March / Porsche Indy qualified 17th, but retired after just 30 laps with problems with one bike.
One of the three vehicles built is on loan to the Cité de l'Automobile - Musée National - Collection Schlumpf in Mühlhausen, but belongs to the Porsche Museum in Zuffenhausen . One is now part of the permanent exhibition "Success story: Porsche Motorsport" in the EFA Museum for German automobile history in Amerang / Chiemgau.
1989 and 1990 March chassis
Most of the CART teams, with the exception of Penske Racing or AAR Eagle , did not build their own car, but bought a chassis , e.g. B. from Lola , and equipped it with engines from Chevrolet, Ford-Cosworth, Judd or Buick. Porsche opted for March Engineering , manufacturer of the CART championship car from 1986 and 1987 and five-time Indy winner with Cosworth engines. The 89 model was adapted to the Porsche engine and called the 89 P, which is why the vehicle ran as the March-Porsche 89 P until the end of its use in 1990. During that time, however, Chevy engines in Lola or Penske chassis were most successful.
Fabi qualified 13th in Indy in 1989, but retired after 23 laps with an engine failure.
In 1990 John Andretti , who started in tenth place , also came to the train. Both now blue cars supported by Foster's managed over two-thirds of the distance of approx. 800 km, but retired due to an accident and gearbox damage.
The involvement in the CART series was discontinued at the end of 1990 and, in retrospect, rated as less than successful. Similar to the Formula 1 World Championship at the beginning of the 1960s, a victory could nevertheless be referred to - that of Teo Fabi on September 3, 1989 at the Mid-Ohio Sports Car Course . However, Porsche soon started a monoposto project again with the naturally aspirated Footwork Porsche FA 12 in Formula 1.
A total of 15 copies of the Porsche 2708 and March-Porsche 89 P were produced. A blue one with the number 4 is in Tübingen
Technical specifications
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| Porsche 2708 CART: | Data |
|---|---|
| Engine: | 8-cylinder V-shape, exhaust gas turbocharger |
| Displacement: | 2649.2 cc |
| Bore × stroke: | 88.2 x 54.2 mm |
| Performance at 1 / min: | 551 kW (750 PS) at 11200 (1989/90) |
| Max. Torque at 1 / min: | 465 Nm at 8500 |
| Compression: | 12: 1 |
| Valve control: | Four-valve, two overhead camshafts , driven by gear wheels |
| Cooling: | Water cooling, intercooler |
| Transmission: | 6 speed transmission |
| Brakes: | Disc brakes |
| Front suspension: | Double wishbones |
| Rear suspension: | Double wishbones |
| Front suspension: | internal spring-damper units |
| Rear suspension: | internal spring-damper units |
| Body: | Monocoque |
| Track width front / rear: | 1710 mm / 1620 mm |
| Wheelbase : | 2800 mm or 2850 mm |
| Tires: | 9.5 "/ 25" -15 "front, 14.5" / 27 "-15" rear, Goodyear brand |
| Dimensions L × W × H: | 4660 × 2010 × 980 mm |
| Empty weight : | 703 kg |
| Top speed: | 360 km / h |
literature
- Schneider, Peter: Type compass Porsche. Racing and racing sports cars since 1948. Motorbuch Verlag, Stuttgart, revised. N / A. 2007, ISBN 3-613-02798-4
Web links
Individual evidence
- ↑ http://www.indy500.com/stats/view/boxscore/year/1988
- ↑ http://www.indy500.com/stats/view/boxscore/year/1989
- ↑ http://www.indy500.com/stats/view/boxscore/year/1990
- ^ Brian Long: Porsche Racing Cars: 1976 to 2005 . Veloce Publishing Ltd, 2008, ISBN 978-1-904788-45-4 ( limited preview in Google Book Search).