PORSCHE RACING HISTORYPorsche 956 - Chassis No. 956-117
17 June 1984 - Le Mans 24 Hours - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 956 | 956-117 | C1 | Henri Pescarolo (F)/Klaus Ludwig (D) | Joest Racing | 1st | 1st | 4th | 359 laps |
29 July 1984 - Brands Hatch 1000 km - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 8 | Porsche 956 | 956-117 | C1 | Jochen Mass (B)/Henri Pescarolo (F) | Joest Racing | 2nd | 2nd | 3rd | 236 laps |
16 September 1984 - Imola 1000 km - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 8 | Porsche 956 B | 956-117 | C1 | Jochen Mass (B)/Henri Pescarolo (F)/Hans Heyer (D) | Joest Racing | 3rd | 3rd | 7th | 197 laps |
16 June 1985 - Le Mans 24 Hours - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 956 B | 956-117 | C1 | Klaus Ludwig (D)/Paolo Barilla (I)/"John Winter" Louis Krages (D) | New-Man-Joest Racing (D) | 1st | 1st | 4th | 374 laps |
14 July 1985 - Hockenheim 1000 km - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 956 B | 956-117 | C1 | Klaus Ludwig (D)/Paolo Barilla (I) | New Man Joest Racing (D) | 3rd | 3rd | 5th | 145 laps |
1 September 1985 - Spa 1000 km - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 956 B | 956-117 | C1 | Klaus Ludwig (D)/Paolo Barilla (I) | New Man Joest Racing (D) | 3rd | 3rd | 4th | 121 laps |
6 October 1985 - Fuji 1000 km - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 956 B | 956-117 | C1 | Paolo Barilla (I)/Marc Duez (B)/"John Winter" Louis Krages (D) | Newman Joest Racing (D) | DNF | 5th | 9 laps - Withdrawn due to weather |
20 April 1986 - Monza 360 km - World Sports-Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 956 B | 956-117 | C1 | Klaus Ludwig (D)/Paolo Barilla (I) | Joest Racing (D) | DNF | 2nd | 50 laps - Clutch |
1 June 1986 - Le Mans 24 Hours - World Sports-Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 956 B | 956-117 | C1 | Klaus Ludwig (D)/Paolo Barilla (I)/"John Winter" Louis Krages (D) | Joest Racing (D) | DNF | 3rd | 196 laps - Engine |
29 June 1986 - Norisring 100 Mile - World Sports-Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 956 B | 956-117 | C1 | Klaus Ludwig (D) | Blaupunkt-Joest Racing (D) | 1st | 1st | 2nd | 79 laps |
20 July 1986 - Brands Hatch 1000 km - World Sports-Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 956 B | 956-117 | C1 | Klaus Ludwig (D)/Hans-Joachim Stuck (D)/Derek Bell (GB) | Joest Racing (D) | 2nd | 2nd | 1st | 232 laps |
15 September 1986 - Spa 1000 km - World Sports-Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 956 B | 956-117 | C1 | Paolo Barilla (I)/Klaus Ludwig (D) | Blaupunkt Joest Racing (D) | 4th | 4th | 10th | 144 laps |
5 October 1986 - Fuji 1000 km - World Sports-Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 956 B | 956-117 | C1 | Paolo Barilla (I)/Piercarlo Ghinzani (I) | Joest Racing (D) | 1st | 1st | 6th | 226 laps |