PORSCHE RACING HISTORYJohn Hulen (USA)
1979
17 March 1979 - 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)/Bob Speakman (USA) | John E. Hulen (USA) | 46th | 17th | 39th | 82 laps - DNF |
8 April 1979 - 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) | John Hulen (USA) | 30th | 16th | 38th | 16 laps - DNF |
15 July 1979 - 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 E. Hulen (USA) | 24th | 8th | 33rd | 75 laps |
2 September 1979 - Road America 500 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 E. Hulen (USA) | 24th | 9th | 34th | 89 laps - DNF |