PORSCHE RACING HISTORYDennis Aase (USA)
1978
5 February 1978 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 51 | Porsche 911 S | GTU | John Hotchkis (USA)/Robert Kirby (USA)/Dennis Aase (USA) | Wynn's International | 58th | 18th | 63rd | 85 laps - Engine |
18 March 1978 - Sebring 12 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 51 | Porsche 911 S | GTU | John Hotchkis (USA)/Robert Kirby (USA)/Dennis Aase (USA) | Wynn's International | 32nd | 16th | 33rd | 142 laps - Mechanical |
2 April 1978 - Talladega 6 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 51 | Porsche 911 | GTU | John Hotchkis (USA)/Dennis Aase (USA) | Wynn's International | 37th | 12th | 24th | 29 laps - Accident |
18 June 1978 - Brainerd 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 64 | Porsche 911 S | GTU | Dennis Aase (USA) | 28th | 7th | 33rd | 17 laps |
27 August 1978 - Mid Ohio 250 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 64 | Porsche 911 S | GTU | Dennis Aase (USA)/Jim Cook (USA) | 38th | 12th | 25th | 47 laps - DNF |