PORSCHE RACING HISTORY934
1981
1 February 1981 - Daytona 24 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 03 | Porsche 934 | 930 670 0178 | GTO | Angelo Pallavicini (CH)/John Sheldon (GB)/Neil Crang (AUS) | Angelo Pallavicini (CH) | 38th | 14th | 40th | 290 laps - DNF |
21 March 1981 - Sebring 12 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 35 | Porsche 934 | 930 670 0161 | GTO | Mandy Gonzalez (PR)/Bonky Fernandez (PR)/Juan Cochesa (YV) | H.S.M. Racing (PR) | 14th | 7th | 16th | 199 laps |
| 24 | Porsche 934 | 930 670 0168 | GTO | Jack Refenning (USA)/Ren Tilton (USA)/Peter Welter (USA) | Jack Refenning (USA) | 37th | 15th | 24th | 139 laps - DNF |
| 03 | Porsche 934 | 930 670 0178 | GTO | Angelo Pallavicini (CH)/Neil Crang (AUS)/Dan Simpson (USA) | Angelo Pallavicini (CH) | 69th | 25th | 38th | 23 laps - DNF |
10 May 1981 - Silverstone 6 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 31 | Porsche 934 | 930 670 0178 | GT | Angelo Pallavicini (CH)/Neil Crang (AUS) | Angelo Pallavicini (CH) | 14th | 3rd | 33rd | 181 laps |
| 30 | Porsche 934 | 930 670 0155 | GT | Richard Cleare (GB)/Andy Rouse (GB) | Richard Cleare (GB) | DNF | 28th | 142 laps - Oil Breather |
24 May 1981 - Lime Rock 200 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 35 | Porsche 934 | 930 670 0161 | GTO | Mandy Gonzalez (PR)/Diego Febles (PR) | HSM Racing (PR) | 19th | 10th | 16th | 50 laps - DNF |
24 May 1981 - Nürburgring 1000 Km - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 34 | Porsche 934 | 930 670 0155 | Gr.5 | Richard Cleare (GB)/David Kennedy (IRL) | Richard Cleare Racing (GB) | 49th | 15th | 44th | 11 laps |
14 June 1981 - Le Mans 24 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 70 | Porsche 934 | 930 670 0157 | GT | Valentin Bertapelle (F)/Thierry Perrier (F)/Bernard Salam (F) | Thierry Perrier (F) | 17th | 1st | 52nd | 275 laps |
4 July 1981 - Daytona 250 Miles Paul Revere - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 24 | Porsche 934 | 930 670 0168 | GTO | Ren Tilton (USA) | 4th | 2nd | 9th | 60 laps |
12 July 1981 - Watkins Glen 6 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 91 | Porsche 934 | 930 670 0167 | GTO | Chester Vincentz (USA)/Lance Van Every (USA)/John Wood (USA) | Electrodyne, Inc. (USA) | 7th | 1st | 20th | 156 laps |
| 33 | Porsche 934 | 930 670 0162 | GTO | Werner Frank (USA)/Rudy Bartling (CDN) | Toyota Village (USA) | DNF | 23rd | 9 laps - Oil Line |
16 August 1981 - Mosport 6 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 91 | Porsche 934 | 930 670 0167 | GTO | Chester Vincentz (USA)/Derek Bell (GB) | Electrodyne Racing (USA) | 21st | 8th | 23rd | 145 laps - DNF |
23 August 1981 - Road America 500 Miles - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 03 | Porsche 934 | 930 670 0162 | GTO | Rudy Bartling (CDN)/Werner Frank (USA) | Werner Frank (USA) | 38th | 12th | 22nd | 45 laps - DNF |
30 August 1981 - Mid-Ohio 500 km - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 91 | Porsche 934 | 930 670 0167 | Gr.4 | Chester Vincentz (USA)/Jeff Wood (USA) | Electrodyne (USA) | 7th | 3rd | 57th | 117 laps |
| 03 | Porsche 934 | 930 670 0162 | Gr.4 | Werner Frank (USA)/Rudy Bartling (CDN) | Toyota Village (USA) | 19th | 12th | 21st | 109 laps |
27 September 1981 - Brands Hatch 1000 km - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 43 | Porsche 934 | 930 670 0155 | GT | David Kennedy (IRL)/Richard Cleare (GB) | Richard Cleare (GB) | 12th | 2nd | 25th | 209 laps |
| 42 | Porsche 934 | 930 670 0178 | GT | Neil Crang (AUS)/Angelo Pallavicini (CH) | Angelo Pallavicini (CH) | 14th | 3rd | 32nd | 202 laps |
29 November 1981 - Daytona Finale 250 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 24 | Porsche 934 | 930 670 0168 | GTO | Jack Refenning (USA)/Ren Tilton (USA) | 42nd | 20th | 24th | 43 laps |