PORSCHE RACING HISTORYPorsche 935 - Chassis No. 930 770 0951
The first of 10 Porsche 934/5 models built 1977 - Supplied new to Peter Gregg at Brumos Porsche 1977 - Jim Busby, Newport Beach, California 1978 - Monte Shelton, Portland, Oregon - Converted to full 935 specification c1983 - Ted Anderson, Bend, Oregon c1990s - Karl Singer, Chicago, Illinois c2001 - Lloyd Hawkins 2022 - Amelia Island Auction - Sold for $912,500
19 March 1977 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 61 | Porsche 934/5 | 930 770 0951 | GTO | Jim Busby (USA)/Peter Gregg (USA) | Brumos Racing (USA) | 3rd | 3rd | 1st | 229 laps |
17 April 1977 - Road Atlanta 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 61 | Porsche 934/5 | 930 770 0951 | GTO | Jim Busby (USA) | Jim Busby (USA) | 35th | 23rd | 31st | 4 laps - DNF |
1 May 1977 - Laguna Seca 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 61 | Porsche 934/5 | 930 770 0951 | GTO | Jim Busby (USA) | Jim Busby Racing (USA) | 2nd | 2nd | 4th | 52 laps |
15 May 1977 - Mid-America 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 61 | Porsche 934/5 | 930 770 0951 | GTO | Jim Busby (USA) | Jim Busby (USA) | 25th | 14th | 3rd | 5 laps - DNF |
4 June 1978 - Trans-Am Westwood - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 57 | Porsche 935 | 930 770 0951 | TA-II | Monte Shelton (USA) | Monte's Motors (USA) | DNS |
11 June 1978 - Trans-Am Portland - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 57 | Porsche 935 | 930 770 0951 | TA-II | Monte Shelton (USA) | Monte's Motors (USA) | 19th | 7th | 3rd | 39 laps - Turbocharger |
25 June 1978 - Trans-Am Mont-Tremblant - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 57 | Porsche 935 | 930 770 0951 | TA-II | Monte Shelton (USA) | Monte's Motors (USA) | 1st | 1st | 1st | 38 laps |
19 August 1978 - Trans-Am Mosport - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 57 | Porsche 935 | 930 770 0951 | TA-II | Monte Shelton (USA) | Porsche+Audi Northwest (USA) | 4th | 4th | 4th | 39 laps |
8 October 1978 - Trans-Am Laguna Seca - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 57 | Porsche 935 | 930 770 0951 | TA-II | Monte Shelton (USA) | Porsche+Audi Northwest (USA) | 30th | 12th | 2nd | 34 laps - Engine |
3 June 1979 - Trans-Am Westwood - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 57 | Porsche 935 | 930 770 0951 | TA-II | Monte Shelton (USA) | 25th | 8th | 3rd | 12 laps - Clutch |
7 July 1979 - Watkins Glen 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 57 | Porsche 935 | 930 770 0951 | TA-II | Neil Shelton (USA)/Monte Shelton (USA) | Monte's Motor Co. (USA) | 35th | 16th | 15th | 46 laps - Accident |
4 May 1980 - Laguna Seca 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 57 | Porsche 935 | 930 770 0951 | GTX | Monte Shelton (USA) | 6th | 6th | 10th | 50 laps |