PORSCHE RACING HISTORY911 SC
1980
3 February 1980 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 08 | Porsche 911 SC | 911 030 1263 | GTU | M. L. Speer (USA)/Ray Ratcliff (USA)/Terry Wolters (USA) | Moran Construction | 18th | 6th | 57th | 489 laps |
16 March 1980 - Brands Hatch 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 911 SC | Gr.5 | Barrie Williams (GB)/Adrian Yates-Smith (GB) | Malaya Garage Ltd. (GB) | 6th | 5th | 23rd | 135 laps | |
| 29 | Porsche 911 SC | GT | Thierry Perrier (F)/Roger Carmillet (F) | Thierry Perrier (F) | 13th | 2nd | 29th | 130 laps | |
| 40 | Porsche 911 SC | ser.GT | Georges Bourdillat (F)/Roland Ennequin (F) | A. M. Bernard | 18th | 1st | 31st | 118 laps |
22 March 1980 - Sebring 12 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 08 | Porsche 911 SC | 911 030 1263 | GTU | Ray Ratcliff (USA)/M. L. Speer (USA)/Terry Wolters (USA) | Moran Construction | 35th | 12th | 68th | 161 laps - DNF |
11 May 1980 - Silverstone 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 24 | Porsche 911 SC | Gr.5 | Adrian Yates-Smith (GB)/Mike Wilds (GB)/Barrie Williams (GB) | Malaya Garage Ltd. (GB) | DNF | 20th | 115 laps - Engine |
25 May 1980 - Nürburgring 1000 km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 76 | Porsche 911 SC | GT | Armin Jahn (D)/Klaus Utz (D) | Hahn Sportwagen GmbH (D) | 13th | 2nd | 26th | 39 laps | |
| 86 | Porsche 911 SC | GT | Helge Probst (D)/Knuth Mentel (D)/Wolfgang Walter (D) | Yale Stapler Team (D) | DNF | 46th | 19 laps - DNF |
15 June 1980 - Le Mans 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 93 | Porsche 911 SC | GT | Thierry Perrier (F)/Roger Carmillet (F) | Thierry Perrier (F) | 16th | 1st | 54th | 281 laps |
5 July 1980 - Watkins Glen 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 98 | Porsche 911 SC | 911 460 0111 | Trans Am | John Bauer (USA)/Larry Green (USA) | Green Racing (USA) | 12th | 1st | 18th | 121 laps |
| 57 | Porsche 911 SC | 911 460 0059 | Trans Am | Monte Shelton (USA)/Bruce Leven (USA) | Porsche-Audi Northwest | 16th | 3rd | 20th | 114 laps |
| 26 | Porsche 911 SC Targa | Trans Am | Robert Overby (USA)/Frank Harmstad (USA) | Robert Overby | 27th | 12th | 33rd | 72 laps - Engine |
30 November 1980 - Daytona Finale 250 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 08 | Porsche 911 SC | 911 030 1263 | GTU | M. L. Speer (USA)/Ray Ratcliff (USA) | Moran Construction | 22nd | 6th | 65th | 55 laps |