PORSCHE RACING HISTORYReinhold Jöst (D)
1977 : Daytona 24 Hours - 3rd overall, 2nd in class : Interserie Nürburgring - 3rd overall, 2nd in class : Interserie Ulm - 1st overall : Interserie Hockenheim - 3rd overall
6 February 1977 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 8 | Porsche 935 | 930 770 0903 | Gr.5 | Reinhold Jöst (D)/Bob Wollek (F)/Albrecht Krebs (D) | Porsche Kremer Racing (D) | 3rd | 2nd | 2nd | 670 laps |
28 August 1977 - Interserie Nürburgring - Interserie
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 2 | Porsche 908/03 Turbo | 908/03-008 | Div.I | Reinhold Jöst (D) | Joest Racing Team (D) | 3rd | 2nd | 70 laps |
18 September 1977 - Interserie Ulm - Interserie
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 1 | Porsche 908/03 Turbo | 908/03-008 | Div.I | Reinhold Jöst (D) | Joest Racing Team (D) | 1st | 1st | 30 laps |
9 October 1977 - Interserie Hockenheim - Interserie
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 2 | Porsche 908/03 Turbo | 908/03-008 | Div.I | Reinhold Jöst (D) | Joest Racing Team (D) | 3rd | 3rd | 22 laps |