PORSCHE RACING HISTORYStefan Johansson (S)
1983 : Silverstone 1000 km - 2nd overall : Nürburgring 1000 km - 2nd overall
8 May 1983 - Silverstone 1000 km - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 8 | Porsche 956 | 956-104 | C | Stefan Johansson (S)/Bob Wollek (F) | Joest Racing | 2nd | 2nd | 2nd | 212 laps |
29 May 1983 - Nürburgring 1000 km - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 8 | Porsche 956 | 956-104 | C | Bob Wollek (F)/Stefan Johansson (S) | Joest Racing | 2nd | 2nd | 3rd | 44 laps |
19 June 1983 - Le Mans 24 Hours - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 8 | Porsche 956 | 956-104 | C | Bob Wollek (F)/Klaus Ludwig (D)/Stefan Johansson (S) | Joest Racing | 6th | 6th | 5th | 354 laps |
2 October 1983 - Fuji 1000 km - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 21 | Porsche 956 | 956-101 | C | Stefan Johansson (S)/Philippe Alliot (F) | Porsche Kremer Racing (D) | DNF | 14th | 92 laps - Engine |