PORSCHE RACING HISTORYLudwig Heimrath, Sr (CDN)
1977 : Trans-Am Kent - 1st overall : Trans-Am Nelson Ledges - 2nd overall : Trans-Am Hallett - 2nd overall : Trans-Am Brainerd - 2nd overall : Mosport 6 Hours - 1st overall : Trans-Am Road America - Race I - 1st overall : Trans-Am Mont-Tremblant - 2nd overall
30 May 1977 - Trans-Am Kent - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 934/5 | 930 770 0958 | TA-II | Ludwig Heimrath, Sr (CDN) | Heimrath Racing (CDN) | 1st | 1st | 5th | 44 laps |
12 June 1977 - Trans-Am Portland - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 934/5 | 930 770 0958 | TA-II | Ludwig Heimrath, Sr (CDN) | Heimrath Racing (CDN) | 6th | 4th | 4th | 48 laps |
26 June 1977 - Trans-Am Nelson Ledges - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 934/5 | 930 770 0958 | TA-II | Ludwig Heimrath, Sr (CDN) | Heimrath Racing (CDN) | 2nd | 2nd | 3rd | 50 laps |
9 July 1977 - Watkins Glen 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 934/5 | 930 770 0958 | Gr.5 | Ludwig Heimrath, Sr (CDN)/Paul Miller (USA) | Heimrath Racing (CDN) | 8th | 8th | 9th | 160 laps |
31 July 1977 - Trans-Am Hallett - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 934/5 | 930 770 0958 | TA-II | Ludwig Heimrath, Sr (CDN) | Heimrath Racing (CDN) | 2nd | 2nd | 5th | 54 laps |
14 August 1977 - Trans-Am Brainerd - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 934/5 | 930 770 0958 | TA-II | Ludwig Heimrath, Sr (CDN) | Heimrath Racing (CDN) | 2nd | 2nd | 6th | 33 laps |
20 August 1977 - Mosport 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 934/5 | 930 770 0958 | TA-II | Ludwig Heimrath, Sr (CDN)/Paul Miller (USA) | Heimrath Racing (CDN) | 1st | 1st | 5th | 240 laps |
3 September 1977 - Trans-Am Road America - Race I - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 934/5 | 930 770 0958 | TA-II | Ludwig Heimrath, Sr (CDN) | Heimrath Racing (CDN) | 1st | 1st | 2nd | 20 laps |
4 September 1977 - Trans-Am Road America - Race 2 - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 934/5 | 930 770 0958 | TA-II | Ludwig Heimrath, Sr (CDN) | Heimrath Racing (CDN) | 19th | 7th | 1st | 18 laps |
9 November 1977 - Trans-Am Mont-Tremblant - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 934/5 | 930 770 0958 | TA-II | Ludwig Heimrath, Sr (CDN) | Heimrath Racing (CDN) | 2nd | 2nd | 13th | 38 laps |