PORSCHE RACING HISTORYNorm Ridgely (CDN)
1978
5 February 1978 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 935 | 930 770 0958 | GTX | Ludwig Heimrath, Sr (CDN)/Jacques Bienvenue (CDN)/Norm Ridgely (CDN) | Heimrath Racing (CDN) | 35th | 13th | 11th | 466 laps - Accident |
18 March 1978 - Sebring 12 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 935 | 930 770 0958 | GTX | Ludwig Heimrath, Sr (CDN)/Norm Ridgely (CDN) | Heimrath Racing (CDN) | 73rd | 22nd | 71st | 6 laps - Engine |
19 August 1978 - Trans-Am Mosport - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 75 | Porsche 911 Carrera RSR | TA-II | Norm Ridgely (CDN) | Ridgely Racing (CDN) | DNF | 15th | 19 laps - Linkage |
27 August 1978 - Mid Ohio 250 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 4 | Porsche 911 Carrera RSR | GTX | Rudy Bartling (CDN)/Norm Ridgely (CDN) | 44th | 17th | 20th | 10 laps - DNF |
26 November 1978 - Daytona Finale 250 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 76 | Porsche 911 Carrera RSR | GTO | Norm Ridgely (CDN) | Ridgely Racing (CDN) | 17th | 7th | 31st | 58 laps |