PORSCHE RACING HISTORYRoger Schramm (USA)
1978
18 March 1978 - Sebring 12 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 91 | Porsche 911 Carrera RSR | GTO | Werner Frank (USA)/Roger Schramm (USA) | Framm Promotions/W. Frank (USA) | 34th | 10th | 36th | 140 laps |
8 July 1978 - Watkins Glen 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 97 | Porsche 911 Carrera RSR | TA 2 | Werner Frank (USA)/Roger Schramm (USA) | Framm Promotions (USA) | 9th | 5th | 28th | 127 laps |
19 August 1978 - Trans-Am Mosport - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 91 | Porsche 911 Carrera RSR | TA-II | Roger Schramm (USA) | Framm Promotions (USA) | 15th | 9th | 23rd | 36 laps |
27 August 1978 - Mid Ohio 250 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 91 | Porsche 911 Carrera RSR | GTO | Werner Frank (USA)/Roger Schramm (USA) | Framm Promotions (USA) | 16th | 5th | 42nd | 93 laps |