2003 All Japan Grand Touring Car Championship
The 2003 All Japan Grand Touring Car Championship was the eleventh season of Japan Automobile Federation GT premiere racing. It was marked as well as the twenty-first season of a JAF-sanctioned sports car racing championship dating back to the All Japan Sports Prototype Championship. The GT500 class champions of 2003 were the #23 Xanavi NISMO Nissan Skyline GT-R team driven by Satoshi Motoyama and Michael Krumm and the GT300 class champions were the #3 Hasemi Motorsports Nissan Fairlady Z driven by Masataka Yanagida and Mitsuhiro Kinoshita, neither of which had won a single race during the course of the season.
The 2003 season saw the introduction of a comprehensive overhaul of the series' vehicle regulations.[1][2] Manufacturers could now cut away the production vehicle's mainframe and replace the front and rear structures with pipe frame structures, which had also allowed for further suspension development.[2] The engine could now be mounted freely in any position or any orientation, and the transmission could now be mounted freely in any position, allowing for the introduction of transaxle units.[2] The size of the rear diffuser was reduced, and the underbody of the car had to be fitted with a flat bottom floor.[2]
Toyota had fitted their GT500 Supra with a 5.2 litre version of the naturally-aspirated 3UZ-FE V8 engine to replace the four-cylinder 3S-GTE. Honda retained the 3.5 litre C32B V6 engine, which was now mounted longitudinally behind the cockpit.[2] Nissan changed from the RB26DETT inline-six cylinder engine to the VQ30DETT V6 engine in the middle of 2002, and retained the lighter aluminium-block engine into 2003.
Drivers and teams
GT500
GT300
Team | Make | Car | Engine | No. | Drivers | Tyre | Rounds |
---|---|---|---|---|---|---|---|
Verno Tokai Dream28 | Honda | Honda NSX | Honda C32B 3.4 L V6 | 2 | Kazuho Takahashi | Y | All |
Akira Watanabe | All | ||||||
Hasemi Motorsport | Nissan | Nissan Fairlady Z | Nissan VQ35DE 3.5 L V6 | 3 | Mitsuhiro Kinoshita | Y | All |
Masataka Yanagida | All | ||||||
Team B-1 | Vemac | Vemac RD320R | Honda C32B 3.4 L V6 | 5 | Tetsuji Tamanaka | Y | All |
"Gō Mifune" | All | ||||||
RE Amemiya Racing | Mazda | Mazda RX-7 | Mazda RE20B 2.0 L 3-rotor | 7 | Nobuteru Taniguchi | Y | All |
Takayuki Ohi | All | ||||||
A&S Racing | Mosler | Mosler MT900R | Chevrolet LS1 6.2 L V8 | 9 | Katsuhiko Tsutsui | Y | All |
Ichijo Suga | 1–5, 7–8 | ||||||
Naohiro Furuya | 6 | ||||||
Team LeyJun | RGS | RGS Mirage GT-1 | Chevrolet LS1 5.7 L V8 | 10 | "OSAMU" | D | 1–6 |
Shinichi Kurashima | 1–3 | ||||||
Tatsuya Mizutani | 4 | ||||||
Naohiro Furuya | 5–6 | ||||||
Vemac | Vemac RD320R | Honda C32B 3.4 L V6 | 63 | "OSAMU" | 8 | ||
Takamasa Nakagawa | 8 | ||||||
Jim Gainer Racing | Ferrari | Ferrari 360 | Ferrari F131B 3.6 L V8 | 11 | Hideshi Matsuda | Y | All |
Tetsuya Tanaka | All | ||||||
Amprex Motorsports | Mazda | Mazda RX-7 | Mazda RE20B 2.0 L 3-rotor | 14 | Tengku Djan Ley | BF | 5 |
Tetsuya Yamano | 5 | ||||||
BMW | BMW M3 (E46) | BMW M52 3.2 L I6 | 15 | Genji Hashimoto | BF | All | |
Charles Kwan | 1–6 | ||||||
Tetsuya Yamano | 7–8 | ||||||
TOM'S Spirit | Toyota | Toyota MR-S (Rd. 1–6) Toyota Celica (Rd. 8) | Toyota 3S-GTE 2.0 L Turbo I4 | 17 | Masahiro Matsunaga | Y | 1–6, 8 |
Masaoki Nagashima | 1–6, 8 | ||||||
Racing Project Bandoh | Toyota | Toyota MR-S (Rd. 1–2) Toyota Celica (Rd. 3–8) | Toyota 3S-GTE 2.0 L Turbo I4 | 19 | Takayuki Aoki | Y | All |
Minoru Tanaka | All | ||||||
Hitotsuyama Racing | BMW | BMW M3 CSL | BMW S50B32 3.2 L I6 | 21 | Mikio Hitotsuyama | D | 1 |
Takeshi Namekawa | 1–2 | ||||||
Yasushi Hitotsuyama | 2–5 | ||||||
Haruhiko Matsumoto | 3–5 | ||||||
Team Taisan | Porsche | Porsche 911 GT3-R | Porsche M96/77 3.6 L F6 | 24 | Akihiro Asai | Y | All |
Atsushi Yogo | 1, 3–8 | ||||||
Adam Wilcox | 2 | ||||||
26 | Shinichi Yamaji | All | |||||
Kazuyushi Nishizawa | All | ||||||
Dodge | Dodge Viper Competition Coupe | Dodge 356-T6 8.0 L V10 | 55 | Eiji Yamada | All | ||
Takayuki Kinoshita | All | ||||||
Team Reckless | Toyota | Toyota MR-S | Toyota 3S-GTE 2.0 L Turbo I4 | 31 | Kota Sasaki | BF | All |
Satoshi Goto | All | ||||||
Dentaire ProJet Racing with apr | Toyota | Toyota MR-S | Toyota 3S-GTE 2.0 L Turbo I4 | 34 | Seigo Nishizawa | BF | All |
Koji Matsuda | All | ||||||
Autobacs Racing Team Aguri | ASL | ASL ARTA Garaiya | Nissan SR20DET 2.0 L Turbo I4 | 43 | Morio Nitta | BF | All |
Shinichi Takagi | All | ||||||
Auto Staff Racing | Nissan | Nissan Silvia (S15) | Nissan SR20DET 2.0 L Turbo I4 | 51 | Naofumi Omoto | Y | 1–6, 8 |
Masanobu Kato | 2–8 | ||||||
Adam Wilcox | 1 | ||||||
Tsuyoshi Shirai | 7 | ||||||
R&D Sport | Porsche | Porsche 911 GT3-R | Porsche M96/77 3.6 L F6 | 61 | Atsushi Katsumata | D | 2–3, 5–6 |
Takeyuki Kishi | 2–3 | ||||||
Keiko Ihara | 5–6 | ||||||
Team Gaikokuya | Porsche | Porsche 996 GT3-RS | Porsche M96/77 3.6 L F6 | 69 | Yutaka Yamagishi | Y | All |
Kei Idaka | All | ||||||
70 | Yoshimi Ishibashi | D | All | ||||
Go Shimizu | 1–4 | ||||||
Hiroshi Wada | 5, 8 | ||||||
Isao Isashi | 6–7 | ||||||
SigmaTec Racing Team | Toyota | Toyota MR-S (Rd. 1–4) Toyota Celica (Rd. 5–8) | Toyota 3S-GTE 2.0 L Turbo I4 | 71 | Keita Sawa | D | All |
Guts Jyonai | 1–5 | ||||||
Tatsuya Kataoka | 6–7 | ||||||
Haruki Kurosawa | 8 | ||||||
Cusco Racing | Subaru | Subaru Impreza WRX STI | Subaru EJ20 2.0 L Turbo F4 | 77 | Katsuo Kobayashi | Y | All |
Tatsuya Tanigawa | All | ||||||
Team Daishin | Nissan | Nissan Silvia (S15) | Nissan SR20DET 2.0 L Turbo I4 | 81 | Kazuki Hoshino | Y | All |
Tadao Uematsu | All | ||||||
Arktech Motorsports | Porsche | Porsche 996 GT3 | Porsche M96/77 3.6 L F6 | 111 | Hiroya Iijima | D | 2–6, 8 |
Shigemitsu Haga | 2–6, 8 | ||||||
910 Racing | Porsche | Porsche 996 GT3 RS | Porsche M96/77 3.6 L F6 | 910 | Akira Hirakawa | Y | All |
Yasuo Miyagawa | All | ||||||
911 | Kazuyoshi Takamizawa | 2, 4–6, 8 | |||||
Jukuchou Sunako | 2, 4–6, 8 |
Schedule
Round | Race | Circuit | Date |
---|---|---|---|
1 | GT Championship in TI | TI Circuit | March 30 |
2 | All Japan GT Fuji 500 | Fuji Speedway | May 4 |
3 | SUGO GT Championship | Sportsland SUGO | May 25 |
4 | Malaysian JGTC in Fuji Speedway | Fuji Speedway | July 13 |
5 | Japan Special GT Cup | Fuji Speedway | August 3 |
6 | Motegi GT Championship Race | Twin Ring Motegi | September 14 |
7 | Japan GT in Kyushu 300 km | Autopolis | October 26 |
8 | Suzuka GT 300 km | Suzuka Circuit | November 16 |
- Due to the SARS outbreak, round 4 of the championship, which was planned to be held at the Sepang Circuit on June 20 and 21, was cancelled and later replaced by a round at Fuji Speedway. The replacement Fuji round featured a unique format of two heat races, each featuring a sprint race for one of the team's drivers. The combined results of both heats would determine the overall winner of the round.[3][4]
Season results
Standings
GT500 class
Drivers' standings
- Scoring system
Position | 1st | 2nd | 3rd | 4th | 5th | 6th | 7th | 8th | 9th | 10th |
---|---|---|---|---|---|---|---|---|---|---|
Points | 20 | 15 | 12 | 10 | 8 | 6 | 4 | 3 | 2 | 1 |
Qualifying | 1 | 1 | 1 | |||||||
Fastest Lap | 1 | 1 | 1 |
|
|
Teams' standings
For teams that entered multiple cars, only the best result from each round counted towards the teams' championship.[5]
Rank | Team | No. | TAI | FUJ | SUG | FUJ | FUJ | MOT | AUT | SUZ | PTS |
---|---|---|---|---|---|---|---|---|---|---|---|
1 | Nismo | 22 | 8 | 1 | 5 | 2 | 11 | 13 | 6 | 4 | 106 |
23 | 2 | 4 | 3 | 5 | 2 | 11 | 5 | 3 | |||
2 | Esso Toyota Team LeMans | 1 | 1 | 12 | 1 | 6 | 4 | 4 | 4 | 7 | 83 |
3 | Dome Racing Team | 16 | 8 | 1 | 10 | 11 | 77 | ||||
18 | 3 | 14Ret | 7 | 8 | 1 | 14 | 14Ret | 2 | |||
4 | Toyota Team TOM'S | 36 | 6 | 10 | 2 | 7 | 5 | 2 | 8 | 8 | 66 |
37 | 16Ret | 8 | 13 | 15 | 6 | 10 | 13 | 14 | |||
5 | Team Impul | 12 | 12 | 2 | 17Ret | 1 | 16 | 6 | 11 | 1 | 64 |
6 | Toyota Team SARD | 39 | 14 | 3 | 14 | 3 | 7 | 7 | 1 | 9 | 57 |
7 | Toyota Team Cerumo | 38 | 17DNS | 18DSQ | 10 | 4 | 3 | 9 | 3 | 13 | 46 |
8 | Mobil 1 Nakajima Racing | 64 | 5 | 6 | 8 | 13 | 9 | 16Ret | 2 | 12 | 36 |
9 | Team Kunimitsu with Mooncraft | 100 | 7 | 7 | 16 | 17 | 13 | 5 | 9 | 5 | 27 |
10 | Team Advan Tsuchiya | 25 | 10 | 13Ret | 4 | 14 | 17 | 3 | 12 | 17Ret | 35 |
11 | Kraft | 35 | 9 | 5 | 6 | 10 | 10 | 12 | 7 | 10 | 24 |
12 | Mugen | 16 | 4 | 15Ret | 9 | 12 | 13 | ||||
13 | Autobacs Racing Team Aguri | 8 | 11 | 16Ret | 11 | 11 | 12 | 8 | 15Ret | 6 | 9 |
14 | Hitotsuyama Racing | 76 | 13 | 9 | 12 | 18 | 14 | 18Ret | 15 | 2 | |
14 | R&D Sports | 62 | 11 | 15 | 9 | 18Ret | 17Ret | 16 | 2 | ||
- | JLOC | 88 | 15 | 17Ret | 18Ret | 16 | 15 | 15 | 16Ret | 18Ret | 0 |
Rank | Team | No. | TAI | FUJ | SUG | FUJ | FUJ | MOT | AUT | SUZ | PTS |
GT300 class (Top 5)
Drivers
Rank | Drivers | Number/Team | Points | Wins |
---|---|---|---|---|
1 | Masataka Yanagida Mitsuhiro Kinoshita | #3 Hasemi Motorsports Nissan Fairlady Z | 77 | 0 |
2 | Keita Sawa | #71 Sigmatech Toyota Celica | 72 | 2 |
3 | Shinichi Yamaji Kazuyuki Nishizawa | #26 Advan Team Taisan Porsche 996 | 72 | 1 |
4 | Takayuki Aoki Minoru Tanaka | #19 WedsSport Toyota Celica | 63 | 2 |
5 | Kota Sasaki Satoshi Goto | #31 Team Reckless Toyota MR-S | 61 | 1 |
References
- ^ "JGTC.net - 2001 GT INSIDE REPORT". supergt.net. Retrieved 2020-12-04.
- ^ a b c d e "JGTC.net | SPECIAL REPORT 2003 Vol.1". supergt.net. Retrieved 2020-12-04.
- ^ "2003 AUTOBACS JGTC Round 4 cancelled". Archived from the original on 10 February 2004.
- ^ "ハーフウェットの第1は井出が、ウェットの第2はトレルイエ! No.12 カルソニックスカイラインが富士を完全制覇!" [Ide Takes the First Half-Wet Race, Treluyer Takes the Second Wet Race! No.12 Calsonic Skyline Completely Conquers Fuji!]. supergt.net (in Japanese). 13 July 2003. Retrieved 14 September 2022.
- ^ "JGTC.net | 2003 Series Ranking". supergt.net. Retrieved 2021-10-16.
External links
- Super GT/JGTC official race archive (in Japanese)
- 2003 season results