PORSCHE RACING HISTORYStefan Johansson (S)
1984 : Sebring 12 Hours - 1st overall
24 March 1984 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 48 | Porsche 935 J | 930 890 0012 | GTP | Mauricio DeNarváez (COL)/Hans Heyer (D)/Stefan Johansson (S) | De Narvaez Enterprises (CO) | 1st | 1st | 16th | 263 laps |
23 April 1984 - Monza 1000 km - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 956 | 956-104 | C1 | Klaus Ludwig (D)/Stefan Johansson (S)/Henri Pescarolo (F) | Joest Racing | DNF | 10th | 17 laps - Engine |
17 June 1984 - Le Mans 24 Hours - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 8 | Porsche 956 | 956-104 | C1 | Stefan Johansson (S)/Jean-Louis Schlesser (F)/Mauricio DeNarváez (COL) | Joest Racing | DNF | 3rd | 170 laps - Overheating |
15 July 1984 - Nürburgring 1000 km - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 956 | 956-104 | C1 | Stefan Johansson (S)/Henri Pescarolo (F)/Ayrton Senna (BR) | New Man Joest Racing | 8th | 8th | 9th | 197 laps |
2 September 1984 - Spa 1000 km - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 956 | 956-104 | C1 | Stefan Johansson (S)/Henri Pescarolo (F)/Hans Heyer (D) | Joest Racing | DNF | 7th | 39 laps - Ignition |
30 September 1984 - Fuji 1000 km - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 956 | 956-104 | C1 | Stefan Johansson (S)/Henri Pescarolo (F) | Joest Racing | 4th | 4th | 4th | 222 laps |