PORSCHE RACING HISTORYDavid Piper (GB)
1970
25 April 1970 - Monza 1000 km - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 11 | Porsche 917 K | 917-010 | S5.0 | Tony Adamowicz (USA)/David Piper (GB) | David Piper (GB) | DNF | 17th | 55 laps - Gearbox Shift Selector |
16 June 1970 - Le Mans 24 Hours - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 18 | Porsche 917 K | 917-021 | S5.0 | Gijs van Lennep (NL)/David Piper (GB) | Team AAW (D) | DNF | 11th | 112 laps - Accident |
5 July 1970 - Interserie Hockenheim Südwestpokal - Interserie
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 11 | Porsche 917 K | 917-010 | David Piper (GB) | David Piper (GB) | 4th | 6th | 30 laps |