PORSCHE RACING HISTORYReinhold Jöst (D)
1978 : Mugello 6 Hours - 2nd overall : Interserie Nürburgring 300 km - 2nd overall, 1st in class : Monza 320km - 1st overall : Interserie Colmar-Berg - 1st overall : Vallelunga 400km - 1st overall : Le Mans 24 Hours - 3rd overall : Interserie Kassel-Calden - 2nd overall : Salzburg - 1st overall : Interserie Ulm - 1st overall : Interserie Nürburgring - 1st overall
5 February 1978 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 21 | Porsche 935 | 930 770 0907 | GTX | Franz Konrad (A)/Reinhold Jöst (D)/Volkert Merl (D) | Konrad Racing (D) | 13th | 8th | 7th | 590 laps |
19 March 1978 - Mugello 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 15 | Porsche 935/77A | 930 890 0014 | Gr.5 | Franz Konrad (A)/Reinhold Jöst (D)/Volkert Merl (D) | Konrad Racing (D) | 2nd | 2nd | 4th | 175 laps |
2 April 1978 - Interserie Nürburgring 300 km - European Sportscar Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 1 | Porsche 908/03 | 908/03-008 | S+2.0 | Reinhold Jöst (D) | Liqui Moly Equipe (D) | 2nd | 1st | 1st | 11 laps |
23 April 1978 - Monza 320km - European Sportscar Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 3 | Porsche 908/03 | 908/03-008 | S3.0 | Reinhold Jöst (D) | Liqui Moly Equipe (D) | 1st | 1st | 5th | 55 laps |
7 May 1978 - Interserie Colmar-Berg - Interserie
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| Porsche 908/03 Turbo | 908/03-008 | Div.I | Reinhold Jöst (D) | Liqui Moly Equipe (D) | 1st | 1st | 50 laps |
14 May 1978 - Vallelunga 400km - European Sportscar Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 1 | Porsche 908/03 | 908/03-008 | Gr.6 | Reinhold Jöst (D)/Mario Casoni (I) | Liqui Moly Equipe (D) | 1st | 1st | 1st | 125 laps |
28 May 1978 - Nürburgring 1000 km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 935/77A | 930 890 0016 | Gr.5+2.0 | Reinhold Jöst (D)/Jürgen Barth (D) | Liqui Moly Equipe (D) | 5th | 5th | 8th | 44 laps |
11 June 1978 - Le Mans 24 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 936/77 | 936-002 | S+2.0 | Hurley Haywood (USA)/Peter Gregg (USA)/Reinhold Jöst (D) | Martini Racing Porsche System (D) | 3rd | 3rd | 6th | 363 laps |
16 July 1978 - Interserie Kassel-Calden - Interserie
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| Porsche 908/03 Turbo | 908/03-008 | Div.I | Reinhold Jöst (D) | Liqui Moly Equipe (D) | 2nd | 2nd | 1st | 60 laps |
23 July 1978 - Salzburg - European Sportscar Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 1 | Porsche 908/03 | 908/03-008 | Reinhold Jöst (D) | Liqui Moly Equipe (D) | 1st | 1st | 60 laps |
27 August 1978 - 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) | Liqui Moly Equipe (D) | 1st | 1st | 1st | 60 laps |
10 September 1978 - Interserie Nürburgring - Interserie
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 1 | Porsche 908/03 Turbo | 908/03-008 | Div.I | Reinhold Jöst (D) | Liqui Moly Equipe (D) | 1st | 1st | 70 laps |