PORSCHE RACING HISTORYHiram Cruz (MEX)
1977 : Sebring 12 Hours - 2nd overall
6 February 1977 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 58 | Porsche 911 Carrera RSR | 911 460 9054 | GTO | Diego Febles (PR)/Mandy Gonzalez (PR)/Hiram Cruz (MEX) | Diego Febles Racing (PR) | 13th | 6th | 18th | 537 laps |
19 March 1977 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 58 | Porsche 911 Carrera RSR | 911 460 5064 | GTO | Diego Febles (PR)/Hiram Cruz (MEX) | Diego Febles Racing (PR) | 2nd | 2nd | 11th | 229 laps |