PORSCHE RACING HISTORYJan Lammers (NL)
1984 : Brands Hatch 1000 km - 1st overall : Imola 1000 km - 2nd overall : Sandown Park 1000 km - 3rd overall
23 April 1984 - Monza 1000 km - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 14 | Porsche 956 | 956-106 | C1 | Jonathan Palmer (GB)/Jan Lammers (NL) | GTi Engineering | 5th | 5th | 3rd | 159 laps |
13 May 1984 - Silverstone 1000 km - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 14 | Porsche 956 | 956-106 | C1 | Jonathan Palmer (GB)/Jan Lammers (NL) | GTi Engineering | 5th | 5th | 4th | 203 laps |
17 June 1984 - Le Mans 24 Hours - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 14 | Porsche 956 | 956-106 | C1 | Jonathan Palmer (GB)/Jan Lammers (NL) | GTi Engineering | DNF | 5th | 239 laps - Alternator |
15 July 1984 - Nürburgring 1000 km - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 14 | Porsche 956 | 956-106 | C1 | Jonathan Palmer (GB)/Jan Lammers (NL)/Christian Danner (D) | Canon Racing - GTI Engineer | 4th | 4th | 3rd | 205 laps |
29 July 1984 - Brands Hatch 1000 km - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 14 | Porsche 956 | 956-106 | C1 | Jonathan Palmer (GB)/Jan Lammers (NL) | GTi Engineering | 1st | 1st | 1st | 238 laps |
2 September 1984 - Spa 1000 km - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 14 | Porsche 956 | 956GTi-106B | C1 | Jan Lammers (NL)/Jonathan Palmer (GB) | GTi Engineering | DNF | 4th | 5 laps - Cracked Bellhousing |
16 September 1984 - Imola 1000 km - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 14 | Porsche 956 | 956GTi-106B | C1 | Jonathan Palmer (GB)/Jan Lammers (NL) | GTi Engineering | 2nd | 2nd | 6th | 199 laps |
30 September 1984 - Fuji 1000 km - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 14 | Porsche 956 | 956GTi-106B | C1 | Jonathan Palmer (GB)/Jan Lammers (NL) | GTi Engineering | 9th | 7th | 5th | 204 laps |
2 December 1984 - Sandown Park 1000 km - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 14 | Porsche 956 | 956GTi-106B | C1 | Jonathan Palmer (GB)/Jan Lammers (NL) | GTi Engineering | 3rd | 3rd | 6th | 202 laps |