PORSCHE RACING HISTORYWilli Kauhsen (D)
1971 : Spa 1000 km - 3rd in class : Targa Florio - 3rd in class : Nürburgring 1000 km - 1st in class
4 April 1971 - Brands Hatch 1000 km - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 10 | Porsche 917 K | 917-022 | S5.0 | Reinhold Jöst (D)/Willi Kauhsen (D) | Team Auto Usdau | 6th | 4th | 12th | 221 laps |
18 April 1971 - Le Mans 3 Hours - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 20 | Porsche 917/20 | 917/20-001 | S5.0 | Willi Kauhsen (D)/Gijs van Lennep (NL) | Martini Racing Team (D) | DNF | 2nd | 28 laps - Ignition |
18 April 1971 - Le Mans Test - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 20 | Porsche 917/20 | 717/20-001 | S5.0 | Jo Siffert (CH)/Willi Kauhsen (D) | Martini International Racing Team | 5th | 5th |
25 April 1971 - Monza 1000 km - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 917 K | 917-022 | S5.0 | Willi Kauhsen (D)/Reinhold Jöst (D) | Team Auto Usdau (CH) | 7th | 4th | 14th | 164 laps |
9 May 1971 - Spa 1000 km - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 25 | Porsche 917 K | 917-022 | S5.0 | Willi Kauhsen (D)/Reinhold Jöst (D) | Usdau Team (CH) | 4th | 3rd | 7th | 66 laps |
16 May 1971 - Targa Florio - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 56 | Porsche 914/6 | 914 043 0163 | GT2.0 | Willi Kauhsen (D)/Günther Steckkönig (D) | Strähle KG | 13th | 3rd | 31st | 9 laps |
30 May 1971 - Nürburgring 1000 km - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 55 | Porsche 917 K | 917-022 | S5.0 | Reinhold Jöst (D)/Willi Kauhsen (D) | Team Auto Usdau (CH) | 6th | 1st | 10th | 40 laps |
13 June 1971 - Le Mans 24 Hours - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 23 | Porsche 917/20 | 917/20-001 | S5.0 | Willi Kauhsen (D)/Reinhold Jöst (D) | Martini International Racing (D) | DNF | 7th | 180 laps - Accident |