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2003 All Japan Grand Touring Car Championship

Motorsports season


Motorsports season

Satoshi Motoyama & Michael Krumm GT500 Teams' Champion: Nismo GT300 Drivers' Champion: Masataka Yanagida & Mitsuhiro Kinoshita GT300 Teams' Champion: Team Taisan ADVAN

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. 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. 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. The size of the rear diffuser was reduced, and the underbody of the car had to be fitted with a flat bottom floor.

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. 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

TeamMakeCarEngineNo.DriversTyreRoundsToyotaHondaNissanHondaHondaNissanToyotaToyotaToyotaToyotaToyotaVemacHondaMcLarenLamborghiniHonda
Esso Toyota Team LeMansToyota SupraToyota 3UZ-FE 5.2 L V81JPN Akira IidaAll
JPN Juichi WakisakaAll
Autobacs Racing Team AguriHonda NSXHonda C32B 3.5 L V68JPN Keiichi TsuchiyaAll
JPN Toshihiro Kaneishi1–3, 5–8
JPN Katsutomo Kaneishi4
Calsonic Team ImpulNissan Skyline GT-RNissan VQ30DETT 3.0 L Twin Turbo V612JPN Yuji IdeAll
FRA Benoît TréluyerAll
G'Zox Mugen
G'Zox Dome Racing TeamHonda NSXHonda C32B 3.5 L V616NED Tom CoronelAll
JPN Daisuke ItoAll
Takata Dome Racing TeamHonda NSXHonda C32B 3.5 L V618JPN Ryō MichigamiAll
FRA Sébastien Philippe1–6, 8
ITA Paolo Montin7
NismoNissan Skyline GT-RNissan VQ30DETT 3.0 L Twin Turbo V622JPN Masami KageyamaAll
GBR Richard LyonsAll
23GER Michael KrummAll
JPN Satoshi MotoyamaAll
Team Advan TsuchiyaToyota SupraToyota 3UZ-FE 5.2 L V825FRA Jérémie DufourAll
JPN Seiji Ara1, 3–8
JPN Hideki Noda2
Project Mu KraftToyota SupraToyota 3UZ-FE 5.2 L V835JPN Naoki HattoriAll
JPN Shigekazu WakisakaAll
Toyota Team TOM'SToyota SupraToyota 3UZ-FE 5.2 L V836FRA Érik ComasAll
JPN Takeshi TsuchiyaAll
37ITA Marco ApicellaAll
JPN Takuya KurosawaAll
au Toyota Team CerumoToyota SupraToyota 3UZ-FE 5.2 L V838JPN Yuji TachikawaAll
JPN Hironori TakeuchiAll
Denso Toyota Team SARDToyota SupraToyota 3UZ-FE 5.2 L V839JPN Manabu OridoAll
GER Dominik SchwagerAll
R&D SportVemac RD350RZytek ZV348 3.4 L V862JPN Shogo Mitsuyama2–6, 8
JPN Shinsuke Shibahara2–6, 8
Mobil 1 Nakajima RacingHonda NSXHonda C32B 3.5 L V664JPN Tsugio MatsudaAll
JPN Takashi Kogure1–3
GER André Lotterer4–8
Hitotsuyama RacingMcLaren F1 GTRBMW S70/2 6.0 L V1276JPN Eiichi TajimaAll
JPN Yudai Igarashi1–3
JPN Haruki Kurosawa4–5
JPN Go Shimizu6–8
JLOCLamborghini Diablo JGT-1Lamborghini L532 6.0 L V1288JPN Hisashi WadaAll
JPN Naohiro Furuya1–3
JPN Koji Yamanishi4–8
Raybrig Team Kunimitsu with MooncraftHonda NSXHonda C32B 3.5 L V6100JPN Hiroki KatohAll
JPN Hidetoshi MitsusadaAll

GT300

TeamMakeCarEngineNo.DriversTyreRoundsHondaNissanVemacMazdaMoslerRGSVemacFerrariMazdaBMWToyotaToyotaBMWPorscheDodgeToyotaToyotaASLNissanPorschePorscheToyotaSubaruNissanPorschePorsche
Verno Tokai Dream28Honda NSXHonda C32B 3.4 L V62JPN Kazuho TakahashiAll
JPN Akira WatanabeAll
Hasemi MotorsportNissan Fairlady ZNissan VQ35DE 3.5 L V63JPN Mitsuhiro KinoshitaAll
JPN Masataka YanagidaAll
Team B-1Vemac RD320RHonda C32B 3.4 L V65JPN Tetsuji TamanakaAll
JPN "Gō Mifune"All
RE Amemiya RacingMazda RX-7Mazda RE20B 2.0 L 3-rotor7JPN Nobuteru TaniguchiAll
JPN Takayuki OhiAll
A&S RacingMosler MT900RChevrolet LS1 6.2 L V89JPN Katsuhiko TsutsuiAll
JPN Ichijo Suga1–5, 7–8
JPN Naohiro Furuya6
Team LeyJunRGS Mirage GT1Chevrolet LS1 5.7 L V810JPN "OSAMU"1–6
JPN Shinichi Kurashima1–3
JPN Tatsuya Mizutani4
JPN Naohiro Furuya5–6
Vemac RD320RHonda C32B 3.4 L V663JPN "OSAMU"8
JPN Takamasa Nakagawa8
Jim Gainer RacingFerrari 360Ferrari F131B 3.6 L V811JPN Hideshi MatsudaAll
JPN Tetsuya TanakaAll
Amprex MotorsportsMazda RX-7Mazda RE20B 2.0 L 3-rotor14MYS Tengku Djan Ley5
JPN Tetsuya Yamano5
BMW M3 (E46)BMW M52 3.2 L I615JPN Genji HashimotoAll
HKG Charles Kwan1–6
JPN Tetsuya Yamano7–8
TOM'S SpiritToyota MR-S (Rd. 1–6)
Toyota Celica (Rd. 8)Toyota 3S-GTE 2.0 L Turbo I417JPN Masahiro Matsunaga1–6, 8
JPN Masaoki Nagashima1–6, 8
Racing Project BandohToyota MR-S (Rd. 1–2)
Toyota Celica (Rd. 3–8)Toyota 3S-GTE 2.0 L Turbo I419JPN Takayuki AokiAll
JPN Minoru TanakaAll
Hitotsuyama RacingBMW M3 CSLBMW S50B32 3.2 L I621JPN Mikio Hitotsuyama1
JPN Takeshi Namekawa1–2
JPN Yasushi Hitotsuyama2–5
JPN Haruhiko Matsumoto3–5
Team TaisanPorsche 911 GT3-RPorsche M96/77 3.6 L F624JPN Akihiro AsaiAll
JPN Atsushi Yogo1, 3–8
GBR Adam Wilcox2
26JPN Shinichi YamajiAll
JPN Kazuyushi NishizawaAll
Dodge Viper Competition CoupeDodge EWC 8.0 L V1055JPN Eiji YamadaAll
JPN Takayuki KinoshitaAll
Team RecklessToyota MR-SToyota 3S-GTE 2.0 L Turbo I431JPN Kota SasakiAll
JPN Satoshi GotoAll
Dentaire ProJet Racing with aprToyota MR-SToyota 3S-GTE 2.0 L Turbo I434JPN Seigo NishizawaAll
JPN Koji MatsudaAll
Autobacs Racing Team AguriASL ARTA GaraiyaNissan SR20DET 2.0 L Turbo I443JPN Morio NittaAll
JPN Shinichi TakagiAll
Auto Staff RacingNissan Silvia (S15)Nissan SR20DET 2.0 L Turbo I451JPN Naofumi Omoto1–6, 8
JPN Masanobu Kato2–8
GBR Adam Wilcox1
JPN Tsuyoshi Shirai7
R&D SportPorsche 911 GT3-RPorsche M96/77 3.6 L F661JPN Atsushi Katsumata2–3, 5–6
JPN Takeyuki Kishi2–3
JPN Keiko Ihara5–6
Team GaikokuyaPorsche 996 GT3-RSPorsche M96/77 3.6 L F669JPN Yutaka YamagishiAll
JPN Kei IdakaAll
70JPN Yoshimi IshibashiAll
JPN Go Shimizu1–4
JPN Hiroshi Wada5, 8
JPN Isao Isashi6–7
SigmaTec Racing TeamToyota MR-S (Rd. 1–4)
Toyota Celica (Rd. 5–8)Toyota 3S-GTE 2.0 L Turbo I471JPN Keita SawaAll
JPN Guts Jyonai1–5
JPN Tatsuya Kataoka6–7
JPN Haruki Kurosawa8
Cusco RacingSubaru Impreza WRX STISubaru EJ20 2.0 L Turbo F477JPN Katsuo KobayashiAll
JPN Tatsuya TanigawaAll
Team DaishinNissan Silvia (S15)Nissan SR20DET 2.0 L Turbo I481JPN Kazuki HoshinoAll
JPN Tadao UematsuAll
Arktech MotorsportsPorsche 996 GT3Porsche M96/77 3.6 L F6111JPN Hiroya Iijima2–6, 8
JPN Shigemitsu Haga2–6, 8
910 RacingPorsche 996 GT3 RSPorsche M96/77 3.6 L F6910JPN Akira HirakawaAll
JPN Yasuo MiyagawaAll
911JPN Kazuyoshi Takamizawa2, 4–6, 8
JPN Jukuchou Sunako2, 4–6, 8

Schedule

RoundRaceCircuitDate12345678
GT Championship in TIJPN TI CircuitMarch 30
All Japan GT Fuji 500JPN Fuji SpeedwayMay 4
SUGO GT ChampionshipJPN Sportsland SUGOMay 25
Malaysian JGTC in Fuji SpeedwayJPN Fuji SpeedwayJuly 13
Japan Special GT CupJPN Fuji SpeedwayAugust 3
Motegi GT Championship RaceJPN Twin Ring MotegiSeptember 14
Japan GT in Kyushu 300 kmJPN AutopolisOctober 26
Suzuka GT 300 kmJPN Suzuka CircuitNovember 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.

Season results

RoundCircuitGT500 Winning TeamGT300 Winning TeamGT500 Winning DriversGT300 Winning Drivers
1TI Circuit#1 ESSO Team LeMans Toyota Supra#24 Advan Team Taisan Porsche 996
JPN Juichi Wakisaka
JPN Akira IidaJPN Atsushi Yogo
JPN Akihiro Asai
2Mt. Fuji#22 Motul NISMO Nissan Skyline GT-R#26 Advan Team Taisan Porsche 996
GBR Richard Lyons
JPN Masami KageyamaJPN Shinichi Yamaji
JPN Kazuyuki Nishizawa
3Sportsland SUGO#1 ESSO Team LeMans Toyota Supra#31 Team Reckless Toyota MR-S
JPN Juichi Wakisaka
JPN Akira IidaJPN Kota Sasaki
JPN Satoshi Goto
4Mt. Fuji**Heat 1:**
#12 Calsonic Impul Nissan Skyline GT-R**Heat 1:**
#3 Hasemi Motorsports Nissan Fairlady Z
JPN Yuji IdeJPN Masataka Yanagida
**Heat 2:**
#12 Calsonic Impul Nissan Skyline GT-R**Heat 2:**
#11 Team Gainer Ferrari F360
FRA Benoît TréluyerJPN Tetsuya Tanaka
**Overall:**
#12 Calsonic Impul Nissan Skyline GT-R**Overall:**
#55 Eclipse Taisan Advan Dodge Viper
JPN Yuji Ide
FRA Benoît TréluyerJPN Eiji Yamada
JPN Takayuki Kinoshita
5Mt. Fuji#18 Takata Dome Honda NSX#19 WedsSport Toyota Celica
JPN Ryō Michigami
FRA Sebastien PhilippeJPN Takayuki Aoki
JPN Minoru Tanaka
6Twin Ring Motegi#16 G-ZOX Dome Honda NSX#71 Sigmatech Toyota Celica
NED Tom Coronel
JPN Daisuke ItoJPN Tatsuya Kataoka
JPN Keita Sawa
7Autopolis#39 Denso Team SARD Toyota Supra#71 Sigmatech Toyota Celica
JPN Manabu Orido
DEU Dominik SchwagerJPN Tatsuya Kataoka
JPN Keita Sawa
8Suzuka Circuit#12 Calsonic Impul Nissan Skyline GT-R#19 WedsSport Toyota Celica
JPN Yuji Ide
FRA Benoît TréluyerJPN Takayuki Aoki
JPN Minoru Tanaka

Standings

GT500 class

Drivers' standings

;Scoring system:

Position1st2nd3rd4th5th6th7th8th9th10thPoints20151210864321Qualifying111Fastest lap111
RankNo.DriverTAI
JPNFUJ
JPNSUG
JPNFUJ
JPNFUJ
JPNMOT
JPNAUT
JPNSUZ
JPNPts.18628336546456165775594610381136122713351524161917171815199202202-0-0-0-0-0-0-0-0RankNo.DriverTAI
JPNFUJ
JPNSUG
JPNFUJ
JPNFUJ
JPNMOT
JPNAUT
JPNSUZ
JPNPts.
23JPN Satoshi Motoyama
GER Michael Krumm***2***4*3*521153
1JPN Akira Iida
JPN Juichi Wakisaka112**1**64447
22JPN Masami Kageyama
GBR Richard Lyons8152111364
12FRA Benoît Tréluyer
JPN Yuji Ide12*2*Ret1166*11**1*
36FRA Érik Comas
JPN Takeshi Tsuchiya6102*7*5**2**88
39JPN Manabu Orido
GER Dominik Schwager1431437719
18JPN Ryō Michigami3Ret78114Ret2
FRA Sébastien Philippe
38JPN Hironori Takeuchi
JPN Yuji TachikawaRet**DSQ**10**4*****3****9***3**13
16NED Tom Coronel
JPN Daisuke Ito4Ret912811011
64JPN Tsugio Matsuda568139Ret212
100JPN Hiroki Katoh
JPN Hidetoshi Mitsusada77161713595
25FRA Jérémie Dufour10Ret41417312**Ret**
JPN Seiji Ara
35JPN Naoki Hattori
JPN Shigekazu Wakisaka956101012710
64GER André Lotterer139Ret212
64JPN Takashi Kogure568
37ITA Marco Apicella
JPN Takuya KurosawaRet813156101314
8JPN Keiichi Tsuchiya11Ret1111128Ret6
JPN Toshihiro Kaneishi
76JPN Eiichi Tajima139121814RetDNP15
JPN Yudai Igarashi
62JPN Shogo Mitsuyama
JPN Shinsuke Shibahara11159RetRet16
8JPN Katsutomo Kaneishi11
76JPN Haruki Kurosawa1814
88JPN Hisashi Wada15RetRet161515RetRet
88JPN Koji Yamanishi161515RetRet
88JPN Naohiro Furuya15RetRet
76JPN Go ShimizuRetDNP15
25JPN Hideki NodaRet
18ITA Paolo MontinRet

|}

Teams' standings

For teams that entered multiple cars, only the best result from each round counted towards the teams' championship.

RankTeamNo.TAI
JPNFUJ
JPNSUG
JPNFUJ
JPNFUJ
JPNMOT
JPNAUT
JPNSUZ
JPNPts.1106283377466564657746836927103511241213139142142-0RankTeamNo.TAI
JPNFUJ
JPNSUG
JPNFUJ
JPNFUJ
JPNMOT
JPNAUT
JPNSUZ
JPNPts.
Nismo228152111364
23***2***4*3*521153
Esso Toyota Team LeMans1112**1**64447
Dome Racing Team16811011
18314Ret7811414Ret2
Toyota Team TOM'S366102*7*5**2**88
3716Ret813156101314
Team Impul1212*2*17Ret1166*11**1*
Toyota Team SARD391431437719
Toyota Team Cerumo3817DNS18**DSQ**10**4*****3****9***3**13
Mobil 1 Nakajima Racing6456813916Ret212
Team Kunimitsu with Mooncraft10077161713595
Team Advan Tsuchiya251013Ret4141731217**Ret**
Kraft35956101012710
Mugen16415Ret912
Autobacs Racing Team Aguri81116Ret111112815Ret6
Hitotsuyama Racing7613912181418Ret15
R&D Sports621115918Ret17Ret16
JLOC881517Ret18Ret16151516Ret18Ret

GT300 Drivers' championship

RankNo.DriverTAI
JPNFUJ
JPNSUG
JPNFUJ
JPNFUJ
JPNMOT
JPNAUT
JPNSUZ
JPNPts.177272372463561661755846944103811381234133414221519161617131812181120112110228236245254263271271-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0-0RankNo.DriverTAI
JPNFUJ
JPNSUG
JPNFUJ
JPNFUJ
JPNMOT
JPNAUT
JPNSUZ
JPNPts.
3JPN Takayuki Kinoshita
JPN Masataka Yanagida6217**3**2134**2**
71JPN Keita Sawa47RetRetRet113
26JPN Kazuyushi Nishizawa
JPN Shinichi Takagi2*1*864Ret39
19JPN Takayuki Aoki
JPN Minoru Tanaka8DNQ205***1***816*1*
31JPN Kota Sasaki
JPN Satoshi Goto35114361111
81JPN Kazuki Hoshino
JPN Tadao Uematsu767424104
43JPN Morio Nitta
JPN Shinichi Takagi1934106***2***521
11JPN Hideshi Matsuda
JPN Tetsuya Tanaka134***Ret***220Ret***2***12
71JPN Tatsuya Kataoka11
24JPN Akihiro Asai***1***1113*8*101885
24JPN Atsushi Yogo***1***13*8*101885
55JPN Eiji Yamada
JPN Takayuki Kinoshita1616Ret15Ret7Ret
5JPN Tetsuji Tamanaka
JPN "Gō Mifune"992197Ret67
2JPN Kazuho Takahashi
JPN Akira Watanabe5Ret521919138
7JPN Takayuki Ohi21103RetRet14206
71JPN Guts Jyonai47RetRetRet
7JPN Nobuteru Taniguchi21103RetRet1420
71JPN Haruki Kurosawa3
51JPN Naofumi Omoto12131178714
51JPN Masanobu Kato13117871714
77JPN Katsuo Kobayashi
JPN Tatsuya Tanigawa10Ret62419Ret9Ret
34JPN Seigo Nishizawa
JPN Koji MatsudaRet141811Ret51917
21/7JPN Haruhiko Matsumoto14DNQDNQDNA6
910JPN Akira Hirakawa
JPN Yasuo Miyagawa208101311152110
17JPN Masahiro Matsunaga
JPN Masaoki Nagashima1818129Ret920
69JPN Yutaka Yamagishi
JPN Kei Idaka111592013101218
9JPN Katsuhiko Tsutsui15**Ret**151712Ret1513
9JPN Ichijo Suga15**Ret**1517121513
51/24GBR Adam Wilcox1211
911JPN Kazuyoshi Takamizawa
JPN Jukuchou Sunako17DNA22151116
14JPN Genji Hashimoto1412Ret15Ret1314Ret
14HKG Charles Kwan1412Ret15Ret13
70JPN Yoshimi Ishibashi1718161218171815
70JPN Go Shimizu17181612
61JPN Atsushi KatsumataRetDNP1612
61JPN Keiko Ihara1612
21JPN Yasushi HitotsuyamaRet14DNQDNQDNA
10/63JPN "OSAMU"RetRetDNQRet14DNQRet
10JPN Naohiro Furuya14DNQ
14/15JPN Tetsuya Yamano2214Ret
70JPN Hiroshi Wada1815
111JPN Hiroya Iijima
JPN Shigemitsu Haga191916171619
70JPN Isao Isashi1718
51JPN Tsuyoshi Shirai17
14MALAYSIA Tengku Djan Ley22
10JPN Shinichi KurashimaRetRetDNQ
21JPN Takeshi NamekawaRetRet
21JPN Mikio HitotsuyamaRet
61JPN Takeyuki KishiRetDNP
10JPN Tatsuya MizutaniRetWD
9JPN Akira IshikawaRet
10JPN Takamasa NakagawaRet

GT300 Teams' standings

For teams that entered multiple cars, only the best result from each round counted towards the teams' championship.

RankTeamNo.TAI
JPNFUJ
JPNSUG
JPNFUJ
JPNFUJ
JPNMOT
JPNAUT
JPNSUZ
JPNPts.18827737246356156175584693810341122121913111410158165174183191-0-0-0-0-0RankTeamNo.TAI
JPNFUJ
JPNSUG
JPNFUJ
JPNFUJ
JPNMOT
JPNAUT
JPNSUZ
JPNPts.
Team Taisan with Advan262*1*864Ret39
551616Ret15Ret7Ret
Hasemi Motorsport36217**3**2134**2**
Sigma Tech Racing Team7147RetRetRet113
Racing Project Bandoh198DNQ205***1***816*1*
Team Reckless3135114361111
Team Daishin81767424104
Autobacs Racing Team Aguri431934106***2***521
Team Gainer11134***Ret***220Ret***2***12
Team Taisan Advan jr.24***1***1113*8*101885
Team B-15992197Ret67
Verno Tokai Dream2825Ret521919138
RE Amemiya Racing721103RetRet14206
Auto Staff Racing511213117871714
Cusco Racing7710Ret62419Ret9Ret
Dentaire ProJet Racing with apr34Ret141811Ret51917
910 Racing910208101311152110
91117DNA22151116
TOM'S Spirit171818129Ret920
Team Gaikokuya69111592013101218
701718161218171815
A&S Racing915**Ret**151712Ret1513
Amprex Motorsports1422
151412Ret15Ret1314Ret
R&D Sport61RetDNP161216
Hitotsuyama Racing21RetRet14DNQDNQDNA
Team LeyJun10RetRetDNQRet14DNQ
63Ret
Arktech Motorsports111191916171619

References

References

  1. "JGTC.net - 2001 GT INSIDE REPORT".
  2. "JGTC.net {{!}} SPECIAL REPORT 2003 Vol.1".
  3. "2003 AUTOBACS JGTC Round 4 cancelled".
  4. (13 July 2003). "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!". supergt.net.
  5. "JGTC.net {{!}} 2003 Series Ranking".
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