1993 All Japan Grand Touring Car Championship

The 1993 All Japan Grand Touring Car Championship was the inaugural season of the Japan Automobile Federation All Japan Grand Touring Car Championship. It was also the eleventh season of a JAF-sanctioned sports car racing championship dating back to the All Japan Sports Prototype Championship (JSPC), which had folded after the 1992 season.[1]

Originally, the series was part of a nine-round championship called the Inter-Circuit League (ICL), which was formed as a last-ditch effort to save the JSPC.[2] Five of the proposed ICL rounds were cancelled due to a lack of entries, and only one race, the Suzuka 1000km, would feature both Group C prototypes and GT cars (as well as cars from the N1 Endurance Series).

The remaining JGTC rounds were staged as joint events with the IMSA GT Championship or the Japan Super Sports Sedan Championship (JSS). Nismo was the only team that built and entered any cars to the new JAF N-GT regulations.[2] Because the format and structure of the races were so different from what would come in future seasons, the 1993 season is not officially recognized by the GT Association (GTA), which was incorporated in October 1993[3] to manage the All Japan GT Championship (later to become Super GT).

Masahiko Kageyama, the only full-time driver in the GT1 category, was declared the champion, driving a Nissan Skyline GT-R.[4] He would also win the final All-Japan Touring Car Championship to be run to Group A regulations in the same year.

Drivers and teams

GT1

Team Make Car Engine No. Drivers Tyre Rounds
NISMO[N 1] Nissan Nissan Skyline GT-R Nissan RB26DETT 2.6 L Twin Turbo I6 2 Masahiko Kageyama B 1–2, 4
Joe Llauget Oldsmobile Oldsmobile Cutlass IMSA GTO Oldsmobile 6.0 L V8 12 Joe Llauget G 1
Lindley Racing[N 2] Ford Ford Mustang IMSA GTO Ford 6.0 L V8 48 Les Lindley G 1
Tommy Riggins Oldsmobile Oldsmobile Cutlass IMSA GTO Oldsmobile 6.0 L V8 53 Tommy Riggins G 1

GT2

Team Make Car Engine No. Drivers Tyre Rounds
NISMO Nissan Nissan Silvia Nissan FJ20DET 2.0 L Turbo I4 3 Takayuki Kinoshita Y 1–2
Hideo Fukuyama 4
Auberlen Racing Concepts[N 3] Mazda Mazda RX-7 Mazda RE13B 1.3 L 2-rotor 19 Bill Auberlen Y 1
Jack Lewis Enterprises Porsche Porsche 964 RS Porsche M64/03 3.8 L F6 73 Jack Lewis Y 1
Leitzinger Racing Nissan Nissan Silvia Nissan VQ30DE 3.0 L V6 95 Bob Leitzinger T 1
97 Frank Honsowetz 1

JSS

Team Make Car Engine No. Drivers Tyre Rounds
RS Nakaharu Nissan Nissan Silvia Nissan FJ20DET 2.0 L Turbo I6 5 Hiroyasu Aoyagi B 1–2, 4
24 Seiichi Sodeyama 1–2, 4
25 Minoru Saotome 2
RE Amemiya Racing Mazda Mazda RX-7 Mazda RE13B 1.3 L 2-rotor 6 Katsuo Kobayashi D 1
10 Tadashi Mizuno 1–2, 4
ERC Mazda Mazda RX-7 Mazda RE13B 1.3 L 2-rotor 9 Tetsuya Kawasaki D 1
11 Takemasa Okazaki 1–2
12 Tetsuya Kawasaki 4
Hiromoto Ishimori Nissan Nissan Skyline GTS-R Nissan RB20DET 2.0 L Turbo I6 13 Hiromoto Ishimori B 1–2, 4
Katsumi Mochizuki Mazda Mazda RX-7 Mazda RE13B 1.3 L 2-rotor 17 Katsumi Mochizuki D 1–2
Kenji Tohira Nissan Nissan Skyline GTS-R Nissan RB20DET 2.0 L Turbo I6 22 Kenji Tohira B 1–2
Atsushi Hayakawa Mazda Mazda RX-7 Mazda RE13B 1.3 L 2-rotor 33 Atsushi Hayakawa D 1–2
Tetsuo Kozai Mazda Mazda RX-7 Mazda RE13B 1.3 L 2-rotor 37 Tetsuo Kozai D 1–2, 4
Shunichi Mori Mazda Mazda RX-7 Mazda RE13B 1.3 L 2-rotor 39 Shunichi Mori D 1–2, 4
Katsutoshi Ito Mazda Mazda RX-7 Mazda RE13B 1.3 L 2-rotor 40 Katsutoshi Ito D 1, 4
Toshiro Fukazawa Mazda Mazda RX-7 Mazda RE13B 1.3 L 2-rotor 55 Toshiro Fukazawa D 1–2, 4
Yoshimi Ishibashi Nissan Nissan Skyline GTS-R Nissan RB20DET 2.0 L Turbo I6 70 Yoshimi Ishibashi Y 1–2, 4

C1

Team Make Car Engine No. Drivers Tyre Rounds
Le Mans Company Nissan Nissan R92CP Nissan VRH35Z 3.5 L Twin Turbo V8 25 Takao Wada B 3
Toshio Suzuki 3
Nova Engineering Nissan Nissan R90CK Nissan VRH35Z 3.5 L Twin Turbo V8 27 Mauro Martini B 3
Heinz-Harald Frentzen 3

GT-N3

Team Make Car Engine No. Drivers Tyre Rounds
NISMO[N 4] Nissan Nissan Skyline GT-R Nissan RB26DETT 2.6 L Twin Turbo I6 2 Masahiko Kageyama B 3
Jeff Krosnoff 3

GTS

Team Make Car Engine No. Drivers Tyre Rounds
Competition Motorsport South Chevrolet Chevrolet Camaro Chevrolet 6.0 L V8 11 Kenny Bupp Jr. G 3
Robert Peters 3
Luis Sereix 3
Lindley Racing[N 5] Ford Ford Mustang IMSA GTO Ford 6.0 L V8 48 Les Lindley G 3
Bob Sobey 3

GTU

Team Make Car Engine No. Drivers Tyre Rounds
Dibós Racing Team Peru Mazda Mazda RX-7 Mazda RE13B 1.3 L 2-rotor 84 Eduardo Dibós Y 3
Juan Dibós 3

Lights

Team Make Car Engine No. Drivers Tyre Rounds
Comptech Acura Spice Racing Spice Spice SE91P Acura 3.0 L V6 49 Parker Johnstone G 3
Dan Marvin 3

LM GT4

Team Make Car Engine No. Drivers Tyre Rounds
Roock Racing Porsche Porsche 964 RSR Porsche M64/03 3.8 L F6 37 Dieter Köll P 3
Philippe Albera 3
Akihiko Nakaya 3
Chamberlain Engineering Lotus Lotus Esprit Sport 200 Lotus 912 2.2 L I4 44 Gordon Kellett P 3
Hideshi Matsuda 3
Tomiko Yoshikawa 3
45 Yojiro Terada 3
Tetsuya Ota 3
Tom Langeberg 3
Larbre Compétition Porsche Porsche 964 RSR Porsche M64/03 3.8 L F6 47 Dominique Dupuy Y 3
Jesús Pareja 3
Jack Laconte 3
HEICO Motorsport Porsche Porsche 964 RSR Porsche M64/03 3.8 L F6 65 Jürgen Barth Y 3
Dirk Ebeling 3
Karl-Heinz Wlazik 3

N1-1

Team Make Car Engine No. Drivers Tyre Rounds
Motor Sport Division Nissan Nissan Skyline GT-R Nissan RB26DETT 2.6 L Twin Turbo I6 1 Masami Miyoshi D 3
Motoji Sekine 3
Beldear Corporation Nissan Nissan Skyline GT-R Nissan RB26DETT 2.6 L Twin Turbo I6 7 Hideo Fukuyama T 3
Kumi Sato 3
Revolver Nissan Nissan Skyline GT-R Nissan RB26DETT 2.6 L Twin Turbo I6 8 Yoshinori Hasegawa Y 3
Motonobu Sakamoto 3
Knight Sport Mazda Mazda RX-7 Mazda RE13B 1.3 L 2-rotor 9 Fuminori Mizuno Y 3
Yasuo Kusakabe 3
Yasufumi Yamazaki 3
Susuki Racing Mechanics Nissan Nissan Skyline GT-R Nissan RB26DETT 2.6 L Twin Turbo I6 15 Katsuhiko Okamoto Y 3
Shinya Motoyoshi 3
Team Actor Nissan Nissan Skyline GT-R Nissan RB26DETT 2.6 L Twin Turbo I6 16 Junya Oshima T 3
Akihiko Koto 3
Yoichi Fukudome 3

N1-2

Team Make Car Engine No. Drivers Tyre Rounds
Nakajima Planning Honda Honda Prelude Honda H22A 2.2 L I4 6 Koji Sato B 3
Hidetoshi Mitsusada 3
Gazas Honda Honda Prelude Honda H22A 2.2 L I4 21 Kazuo Shimizu T 3
Masami Kageyama 3
Takahiko Hara 3
Formula Spirit Honda Honda Prelude Honda H22A 2.2 L I4 26 Daniel Latour T 3
Takeshi Tsuchiya 3
Tatsuya Tanigawa 3

N1-3

Team Make Car Engine No. Drivers Tyre Rounds
Team A-One Honda Honda Civic SiR Honda B16A2 1.6 L I4 6 Ryo Michigami T 3
Atsushi Okuda 3
Yoshihisa Fujita 3

RS

Team Make Car Engine No. Drivers Tyre Rounds
Cosmos Racing Oscar Oscar SK90 Mazda RE13B 1.3 L 2-rotor 5 Masaki Ohashi D 3
Katsunori Yamamoto 3
Yoshifumi Yamazaki 3
73 Yoichiro Suzuki 3
Akio Tomita 3
Naoto Chikada 3
Trident Oscar Oscar SK90 Mazda RE13B 1.3 L 2-rotor 10 Koichi Hamada D 3
Minetaka Mizuno 3
Tadayuki Sato 3
Car Graphic Racing Team Oscar Oscar SK90 Mazda RE13B 1.3 L 2-rotor 17 Masayoshi Furuya D 3
Masahiro Tejima 3
Hisashi Tukahara 3
Mascrat Racing Team Oscar Oscar SK90 Mazda RE13B 1.3 L 2-rotor 23 Tsuguo Yagyu Y 3
Mari Nagata 3
Katsuto Kinugasa 3
Mitsuo Yamamoto Oscar Oscar SK90 Mazda RE13B 1.3 L 2-rotor 51 Mitsuo Yamamoto D 3
Genji Hashimoto 3
Jikanwari West West 89S Mazda RE13B 1.3 L 2-rotor 52 Tomohiro Tomasu D 3
Michiko Hashimoto 3
IZUMODEN Oscar Oscar SK90 Mazda RE13B 1.3 L 2-rotor 55 Yoshiyuki Ogura Y 3
Keiichi Mizutani 3
Hajime Oshiro 3

Schedule

Round Race Circuit Date
1 IMSA GT Fuji Fuji Speedway March 28
2 Fuji 100 km Fuji Speedway May 30
3 Suzuka 1000 km Suzuka Circuit August 29
4 Fuji F3000 Fuji Speedway October 17

Race results

Round Circuit Date Pole position Winner
1 Fuji Speedway March 28 #2 NISMO #2 NISMO
Masahiko Kageyama Masahiko Kageyama
2 Fuji Speedway May 30 #2 NISMO #2 NISMO
Masahiko Kageyama Masahiko Kageyama
3 Suzuka Circuit August 29 #27 Nova Engineering #25 Le Mans Company
Mauro Martini
Heinz-Harald Frentzen 		Takao Wada
Toshio Suzuki
4 Fuji Speedway October 17 #2 NISMO #2 NISMO
Masahiko Kageyama Masahiko Kageyama

Notes

  1. ^ Competed in GT-N3 class in round 3
  2. ^ Competed in GTS class in round 3
  3. ^ Entered into round 3 in GTU class with Auberlen and John Morton but did not arrive
  4. ^ Competed in GT1 class in all other rounds
  5. ^ Competed in GT1 class in round 1

References

  1. ^ "History of JGTC and Super GT Racing". imca-slotracing.com. 19 October 2007. Archived from the original on 8 February 2010. Retrieved 6 March 2010.
  2. ^ a b Forum, Motorsports (1992-12-09). "JSPC&JGTC:日本インターサーキットリーグ -". モータースポーツフォーラム (in Japanese). Retrieved 2026-02-03.
  3. ^ "History of the Company｜SUPER GT オフィシャルサイト". SUPER GT オフィシャルサイト. Retrieved 2026-02-04.
  4. ^ "JGTC – final positions and tables". classicscars.com. 10 April 2003. Retrieved 6 March 2010.
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