PORSCHE RACING HISTORYDiego Febles (PR)
1978 : Daytona 24 Hours - 3rd overall, 1st in class : Talladega 6 Hours - 3rd in class : Daytona 250 Miles Paul Revere - 3rd in class : Mid Ohio 250 Miles - 3rd in class
5 February 1978 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 58 | Porsche 911 Carrera RSR | GTO | Diego Febles (PR)/Alec Poole (GB) | Diego Febles Racing (PR) | 3rd | 1st | 21st | 645 laps |
18 March 1978 - Sebring 12 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 58 | Porsche 911 Carrera RSR | GTO | Diego Febles (PR)/Alec Poole (GB) | Diego Febles Racing (PR) | 13th | 4th | 15th | 197 laps - Mechanical |
2 April 1978 - Talladega 6 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 58 | Porsche 911 Carrera RSR | GTO | Diego Febles (PR)/Francisco Romero (YV) | Diego Febles Racing (PR) | 21st | 3rd | 21st | 132 laps |
4 July 1978 - Daytona 250 Miles Paul Revere - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 58 | Porsche 911 Carrera RSR | GTO | Diego Febles (PR) | 6th | 3rd | 16th | 62 laps |
30 July 1978 - Sears Point 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 58 | Porsche 911 Carrera RSR | GTO | Diego Febles (PR) | 13th | 5th | 27th | 35 laps |
6 August 1978 - Portland 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 58 | Porsche 911 Carrera RSR | GTO | Diego Febles (PR) | 20th | 12th | 19th | 26 laps |
27 August 1978 - Mid Ohio 250 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 58 | Porsche 911 Carrera RSR | GTO | Diego Febles (PR) | 9th | 3rd | 23rd | 98 laps |
26 November 1978 - Daytona Finale 250 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 58 | Porsche 911 Carrera RSR | GTO | Diego Febles (PR) | Diego Febles Racing (PR) | 11th | 4th | 25th | 60 laps |