PORSCHE RACING HISTORYDave Cowart (USA)
1978 : Talladega 6 Hours - 1st in class : Laguna Seca 100 Miles - 3rd in class : Lime Rock 100 Miles - 2nd in class : Brainerd 100 Miles - 1st in class : Portland 100 Miles - 1st in class : Mid Ohio 250 Miles - 1st in class : Road Atlanta 100 Miles - 3rd in class
5 February 1978 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 07 | Porsche 911 Carrera RSR | 911 560 9114 | GTO | Dave Cowart (USA)/Charles Mendez (USA)/Joe Castellano (I) | Morrison's Inc. | 36th | 10th | 61st | 459 laps - DNF |
18 March 1978 - Sebring 12 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 07 | Porsche 911 Carrera RSR | 911 560 9114 | GTO | Dave Cowart (USA)/Nick Craw (USA)/Joe Castellano (I) | Morrison's Inc. | 28th | 8th | 23rd | 165 laps - Suspension |
2 April 1978 - Talladega 6 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 33 | Porsche 911 Carrera RSR | 911 460 9113 | GTO | Bonky Fernandez (PR)/Dave Cowart (USA) | Boricua Racing (PR) | 4th | 1st | 12th | 161 laps |
16 April 1978 - Road Atlanta 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 07 | Porsche 911 Carrera RSR | 911 560 9114 | GTO | Dave Cowart (USA) | Morrison's Inc. | 13th | 4th | 27th | 36 laps |
30 April 1978 - Laguna Seca 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 07 | Porsche 911 Carrera RSR | 911 560 9114 | GTO | Dave Cowart (USA) | Morrison's Inc. | 12th | 3rd | 17th | 48 laps |
7 May 1978 - Hallett 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 07 | Porsche 911 Carrera RSR | 911 560 9114 | GTO | Dave Cowart (USA) | Morrison's Inc. | 9th | 5th | 10th | 50 laps |
29 May 1978 - Lime Rock 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 07 | Porsche 911 Carrera RSR | 911 560 9114 | GTO | Dave Cowart (USA) | Morrison's Inc. | 10th | 2nd | 15th | 61 laps |
18 June 1978 - Brainerd 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 07 | Porsche 911 Carrera RSR | 911 560 9114 | GTO | Dave Cowart (USA) | Morrison's Inc. | 8th | 1st | 10th | 31 laps |
4 July 1978 - Daytona 250 Miles Paul Revere - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 07 | Porsche 911 Carrera RSR | 911 560 9114 | GTO | Dave Cowart (USA)/Charles Mendez (USA) | Morrison's Inc. | 40th | 14th | 24th | 36 laps - DNF |
30 July 1978 - Sears Point 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 07 | Porsche 911 Carrera RSR | 911 560 9114 | GTO | Dave Cowart (USA) | Morrison's Inc. | 16th | 8th | 8th | 26 laps |
6 August 1978 - Portland 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 07 | Porsche 911 Carrera RSR | 911 560 9114 | GTO | Dave Cowart (USA) | Morrison's Inc. | 8th | 1st | 14th | 48 laps |
27 August 1978 - Mid Ohio 250 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 07 | Porsche 911 Carrera RSR | 911 560 9114 | GTO | Dave Cowart (USA)/Mauricio DeNarváez (COL) | Morrison's Inc. | 7th | 1st | 14th | 98 laps |
4 September 1978 - Road Atlanta 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 07 | Porsche 911 Carrera RSR | 911 560 9114 | GTO | Dave Cowart (USA) | Morrison's Inc. | 10th | 3rd | 19th | 37 laps |
26 November 1978 - Daytona Finale 250 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 07 | Porsche 911 Carrera RSR | 911 560 9114 | GTO | Dave Cowart (USA)/Howard Meister (USA) | Morrison's Inc. | 14th | 6th | 30th | 60 laps |