PORSCHE RACING HISTORYRon Coupland (USA)
1978
5 February 1978 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 85 | Porsche 914/6 | GTU | John Hulen (USA)/Ron Coupland (USA)/Nick Engels (USA) | John Hulen (USA) | 67th | 47th | 0 laps - Engine at Start |
18 March 1978 - Sebring 12 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 85 | Porsche 914/6 | GTU | John Hulen (USA)/Ron Coupland (USA)/Nick Engels (USA) | John Hulen (USA) | 23rd | 9th | 40th | 174 laps |
4 July 1978 - Daytona 250 Miles Paul Revere - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 85 | Porsche 914/6 | GTU | John Hulen (USA)/Ron Coupland (USA) | John Hulen (USA) | 28th | 13th | 42nd | 53 laps |
27 August 1978 - Mid Ohio 250 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 85 | Porsche 914/6 | GTU | John Hulen (USA)/Ron Coupland (USA) | John Hulen (USA) | 18th | 4th | 48th | 92 laps |
4 September 1978 - Road Atlanta 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 85 | Porsche 914/6 | GTO | John Hulen (USA)/Ron Coupland (USA) | John Hulen (USA) | 20th | 10th | 26th | 34 laps |