The 1991 All Japan Sports Prototype Car Endurance Championship was the ninth season of the All Japan Sports Prototype Championship. The 1991 champion was the #23 Nissan Motorsports Nissan R91CP driven by Kazuyoshi Hoshino and Toshio Suzuki.
Schedule All races were held in Japan. Round Race Circuit Date 1 All Japan Fuji 500 km Fuji Speedway 10 March 2 All Japan Fuji 1000 km Fuji Speedway 5 May 3 All Japan Fuji 500 Miles Fuji Speedway 21 July 4 International Suzuka 1000 km Suzuka Circuit 25 August 5 SUGO Inter 500 km Sportsland SUGO 16 September 6 Interchallenge Fuji 1000 km Fuji Speedway 6 October 7 SUGO Inter 500 Miles Sportsland SUGO 3 November
Entry list Team Make Car Engine No. Drivers Tyre Rounds Nissan Motorsports Nissan Nissan R90CPNissan R91CP Nissan VRH35Z 3.5 L Twin Turbo V81 Masahiro Hasemi All Anders Olofsson All23 Kazuyoshi Hoshino All Toshio Suzuki All Team Taisan Porsche Porsche 962C Porsche 935/82 3.0 L Twin Turbo F6 2 Kunimitsu Takahashi 1–2 Stanley Dickens 1–2 Will Hoy 2 Porsche 962/83 3.2 L Twin Turbo F6 3 Will Hoy 1 Harald Huysman 1 Navi Connection Racing Alexel Alexel Autorama C91 Ford DFR 3.5 L V83 Kaoru Iida 5–7 Taku Akaike 5–7 The Alpha Racing Porsche Porsche 962C Porsche 962/83 3.2 L Twin Turbo F67 Tiff Needell 1–3 Anthony Reid 1–3 Raul Boesel 6 Bob Wollek 6 Jonathan Palmer 7 Oscar Larrauri 7 TWR Suntec Jaguar Jaguar Jaguar XJR-11 Rover V64V 3.5 L Twin Turbo V618 Mauro Martini 2–6 Jeff Krosnoff 2–6 John Nielsen 3–4 Jaguar XJR-14 Cosworth HB 3.5 L V8 Mauro Martini 7 Jeff Krosnoff 7 17 David Brabham 7 Teo Fabi 7 Ao Racing Spice Spice SE90C Ford DFZ 3.5 L V821 Hideshi Matsuda 5–6 Hideo Fukuyama 5–6 Tomiko Yoshikawa 6 Team LeMans Nissan Nissan R90CNissan R91CP Nissan VRH35Z 3.5 L Twin Turbo V825 Hideki Okada All Takao Wada 1–4 Masahiko Kageyama 3–7 Maurizio Sandro Sala 4 From A Racing Nissan Nissan R90CK Nissan VRH35Z 3.5 L Twin Turbo V827 Akihiko Nakaya All Volker Weidler All Thomas Danielsson 2 Toyota Team TOM'S Toyota Toyota 90C-VToyota 91C-V Toyota R36V 3.6 L Turbo V836 Masanori Sekiya All Hitoshi Ogawa All Andy Wallace 2, 437 Geoff Lees All Eje Elgh 2–7 Pierre-Henri Raphanel 1 Andy Wallace 4, 6 Toyota Team SARD Toyota Toyota 90C-VToyota 91C-V Toyota R36V 3.6 L Turbo V8 38 Roland Ratzenberger All Naoki Nagasaka 1–4 Pierre-Henri Raphanel 3–7 Team Fedco Spice Spice SE91C Ford DFZ 3.5 L V8 77 Hisashi Yokoshima 2–3 Kiyoshi Misaki 2–3 Team Schuppan Porsche Porsche 962C Porsche 962/83 3.0 L Twin Turbo F6 91 Hurley Haywood 1 James Weaver 1 Team 0123 Porsche Porsche 962C Porsche 935/83 3.0 L Twin Turbo F691 Julian Bailey 4 Kenny Acheson 4, 6 James Weaver 6 Trust Racing Porsche Porsche 962C Porsche 935/83 3.0 L Twin Turbo F6 100 George Fouché All Steven Andskär All Mazdaspeed Mazda Mazda 787Mazda 787B Mazda R26B 2.6 L 4-rotor 201 Tetsuya Ota 1 Pierre Dieudonné 1, 7 David Kennedy 1–2, 4–5 Johnny Herbert 3, 6 Bertrand Gachot 3 Yojiro Terada 4–5, 7 Takashi Yorino 4 Maurizio Sandro Sala 6 202 Takashi Yorino 1–3, 5–7 Yojiro Terada 1–3 Tetsuya Ota 2, 5 David Kennedy 6–7 Pleasure Racing Mazda Mazda 767B Mazda RE13J 2.6 L 4-rotor230 Tetsuji Shiratori All Shuji Fujii All Masatomo Shimizu 1–6
Season results Season results as follows:
Round Circuit Winning team Winning drivers 1 Mt. Fuji #23 Nissan Motorsports Nissan R91CP Kazuyoshi Hoshino Toshio Suzuki 2 Mt. FujiReport #23 Nissan Motorsports Nissan R91CP Kazuyoshi Hoshino Toshio Suzuki 3 Mt. Fuji #36 Toyota Team TOM'S Toyota 91C-V Hitoshi Ogawa Masanori Sekiya 4 Suzuka CircuitReport #38 Toyota Team SARD Toyota 91C-V Roland Ratzenberger Pierre-Henri Raphanel Naoki Nagasaka 5 Sportsland SUGOReport #37 Toyota Team TOM'S Toyota 91C-V Geoff Lees Eje Elgh 6 Mt. Fuji #23 Nissan Motorsports Nissan R91CP Kazuyoshi Hoshino Toshio Suzuki 7 Sportsland SUGO #17 TWR Suntech Jaguar XJR-14 David Brabham Teo Fabi
Point Ranking
Drivers RankDriversNumber/Team Points Wins 1 Kazuyoshi Hoshino Toshio Suzuki #23 Nissan Motorsports Nissan R91CP 87 3 2 Hitoshi Ogawa Masanori Sekiya #36 Toyota Team TOM'S Toyota 91C-V 85 1 3 Geoff Lees #37 Toyota Team TOM'S Toyota 91C-V 54 1 4 Volker Weidler Akihiko Nakaya #27 From A Racing Nissan R90CK 52 0 5 George Fouché Steven Andskär #100 Trust Racing Porsche 962C 52 0
References
External links 1991 全日本スポーツプロトタイプカー耐久選手権