JAF Grand Prix
Suzuka, 11 Nov 1973
| Results | Laps | Time/Speed | ||
|---|---|---|---|---|
| 1 | Motoharu Kurosawa | (F2) 2-litre March 722 - BMW M12 #1 Heroes Racing (see note 1) |
||
| 2 | Noritake Takahara | (F2) 2-litre Brabham BT36 [12] - Ford BDA Hart #3 Takahara Noritake (see note 2) |
||
| 3 | Hiromu Tanaka | (F2) 2-litre March 732 - BMW M12/6 #2 Heroes Racing (see note 3) |
||
| 4 | Takashi Yorino | (F2) 2-litre Surtees TS15 - Ford BDA Hart alloy #6 Niscait Racing (see note 4) |
||
| 5 | Kuniomi Nagamatsu | (F2) 2-litre Brabham BT36 - Mitsubishi Colt R39B #5 Colt GT Special (see note 5) |
||
All cars are 2-litre F2 unless noted.
| Qualifying | |||||
|---|---|---|---|---|---|
| 1 | Motoharu Kurosawa | (F2) 2-litre March 722 - BMW M12 | |||
| 2 | Hiromu Tanaka | (F2) 2-litre March 732 - BMW M12/6 | |||
| 3 | Noritake Takahara | (F2) 2-litre Brabham BT36 [12] - Ford BDA Hart | |||
| 4 | Takashi Yorino | (F2) 2-litre Surtees TS15 - Ford BDA Hart alloy | |||
| 5 | Kuniomi Nagamatsu | (F2) 2-litre Brabham BT36 - Mitsubishi Colt R39B | |||
Notes on the cars:
- March 722 (Motoharu Kurosawa): Heroes Racing Corporation run a brand new red March 722 for Hiromu Tanaka in Japanese F2 in 1972 (with a Mitsubishi Colt R39B engine) and then for Motoharu Kurosawa (with a BMW engine) in 1973. The car returned to the team in 1975 and 1976 for Naoki Nagasaka.
- Brabham BT36 [12] (Noritake Takahara): New to Noritake Takahara for Japanese racing, first appearing at the JAF Grand Prix in May 1972, when it was fitted with a 2-litre Mitsubishi Colt R39B engine. Raced by Takahara with a 1800cc Cosworth FVC in the 1973 Tasman series, then in a series of Japanese raced for 2000cc cars, when it was said to have a 2-litre Hart BDA. Later to Shigeaki Asaoka in 1975, then Kiyoshi Misaki in 1976 and 1977. From 1978 to 1985, it was owned by a Mr Tomita. To Shigeaki Koshiba in 1986, then to Hashime Tanaka in 1997, then Tom Smith (CA, USA) in 2006.
- March 732 (Hiromu Tanaka): Heroes Racing Corporation ran a March 732 in the Japanese Formula 2 series in 1973, raced by Hiromu Tanaka. Tetsu Ikuzawa raced the car in early 1974, and it is then highly likely to have been the 732 entered by Niscait Racing for Fukumi Koutake in November 1974. By the same logic, as it was the only 732 known to have gone to Japan, it was presumably the BDA-engined 732 raced by Tomohiko Tsutsumi in 1975. Subsequent history unknown.
- Surtees TS15 (Takashi Yorino): Takashi Yorino is listed in results of the JAF Grand Prix at Suzuka in November 1973 driving a Surtees TS15, entered by Niscait Racing. The same team then entered the Surtees TS15 that Matsuaki Sanada drove at Suzuka in May 1974. By this time the car was in Niscait livery, with Niscait Racing Project on the nose. Nothing more known.
- Brabham BT36 (Kuniomi Nagamatsu): Noritake Takahara raced his BT36 with a Mitsubishi Colt R39B engine in 1972, but changed to a Cosworth BDA for 1973. However, also in 1973, another BT36 appeared as a Bellco Racing Team entry with Mitsubishi Colt R39B engine for Kuniomi Nagamatsu. Yoshimasa Kawaguchi and Tomohiko Tsutsumi then had BT36-BDAs in 1974, but it is likely that one of these is an older BT30 updated. Kenzou Muromachi then drove this "extra" BT36 in 1975 and 1976. Subsequent history unknown.
Sources
The identification of individual cars in these results is based on the material presented elsewhere in this site and may in some cases contradict the organisers' original results.
All comments, clarifications, corrections and additions are most welcome. Please email Allen (allen@oldracingcars.com) if you can help in any way with our research.