2021 Japanese Super GT

[hvr777]

This is the thread for discussing about 2021 Japanese Super GT. Pre-season, in-season and post-season as well.


Tentative 2021 Calendar :

10-11 April – Okayama International Circuit (300km)
3-4 May – Fuji Speedway (500km)
29-30 May – Suzuka Circuit (300km)
TBA – Chang International Circuit
TBA – Sepang International Circuit
11-12 September – Sportsland Sugo (300km)
23-24 October – Autopolis International Racing Course (300km)
6-7 November – Twin Ring Motegi (250km)

[Japanese Samurai]

According to BMW Stylebook magazine,
there is a possibility that M4 GT3 will be delivered to Team Studie for next season.

[hvr777]

Originally Posted by Japanese Samurai

According to BMW Stylebook magazine,
there is a possibility that M4 GT3 will be delivered to Team Studie for next season.

right after the car is already homologated?

[Baliwa]

is there word from STI they will use new BRZ for next year outing?

[Japanese Samurai]

Autpsport web GT500 season review part.2 Toyota
https://www.as-web.jp/supergt/654528?all

*Supra's breakthrough was supported by the aerodynamic straightness derived from the shape of the base model and the introduce of rake angle.
*Unlike the LC500, the aerodynamics of the supra are the same as the results of the wind tunnel test and CFD.
*As you can see from the appearance of the lateral duct, Supra's drag was low, so Fuji's straight line speed was overwhelming.
*Kazumoto Yuasa (TRD engineer) says that straight line speed in Fuji was advantageous and high rake in Suzuka worked well, but stop-and-go Motegi struggled. High rake concept did not work well at the low speed corner Motegi.
*As for engine development, Takahiro Sasaki (TRD) says that in terms of engine, they struggled with Motegi, where drivability is important. If Okayama was the opening round as usual, they could have noticed the lack of drivability.
This year is Fuji, Fuji, Suzuka, and Motegi, so it wasn't until the 4th round that they noticed any engine issues.
Moreover, in the 4th round, the fuel restrictor was applied in bad weather, so the original lack of drivability was hidden.
*Yuasa says Toyota may change the downforce drag ratio towards 2021.

[Japanese Samurai]

Team Cars Tokai Dream 28 (#2) will quit SGT activity after 2020 season.
https://www.as-web.jp/supergt/655688?all

[Japanese Samurai]

Team Cars Tokai is a team created because Kazuho Takahashi (team owner) himself wants to race, so I think this result is unavoidable.
I think it was a reward from Takahashi to Kato that Cars Tokai participated in SGT this year.

[Japanese Samurai]

Subaru will introduce new BRZ GT300 for GT300 in 2021!
https://twitter.com/taku_saf1/status...27051659939841
https://twitter.com/taku_saf1/status...28609340588032
https://twitter.com/taku_saf1/status...35167390744576

[hvr777]

Originally Posted by Japanese Samurai

Subaru will introduce new BRZ GT300 for GT300 in 2021!
https://twitter.com/taku_saf1/status...27051659939841
https://twitter.com/taku_saf1/status...28609340588032
https://twitter.com/taku_saf1/status...35167390744576

Whoa I didn't think they will be racing the new BRZ immediately next year. From what I know BRZ will be released at USA at fall 2021 while no date yet for Japan.
My big question is, what engine will be used on the car.

[Japanese Samurai]

Autosport web is reporting GT300 silly season rumors.
https://www.as-web.jp/supergt/656264?all

*There is no big difference in entry team numbers between 2020 and 2021.
*A team returns with German car.
*There may be changes in participation team toward 2022.
*The number of JAF-GT vehicles may increase toward 2022 (Nissan 400Z? 2021?).
*There seems to be a newly manufactured vehicle (BRZ GT300?).

[helgi]

Super happy to see Subaru going on with this project. I always feel sorry for them having less coverage than GT500 teams, as they are real 4th manufacturer in constructors' battle, they bring a real variety to the field. And their R&D reports are fruitful. All the best wishes to them.

[bentley speed 8]

Gutted about losing the Lotus, but good news from Subaru with the new BRZ. This year they had a pretty good run all things considered. I guess the old EJ is finally on the way out?

[Japanese Samurai]

Hideto Yasuoka tweets on Lexus' withdrawal from European GT3 market.
He says Nissan set a bad precedent that it would be advantageous to compete for GT3 only in Japan.
(There is a rumor that Nissan GTRs have an advantage in SRO-BoP because they don't compete in European race.)
https://twitter.com/hidetoyasuoka/st...47067111231489

[hvr777]

Originally Posted by Japanese Samurai

Hideto Yasuoka tweets on Lexus' withdrawal from European GT3 market.
He says Nissan set a bad precedent that it would be advantageous to compete for GT3 only in Japan.
(There is a rumor that Nissan GTRs have an advantage in SRO-BoP because they don't compete in European race.)
https://twitter.com/hidetoyasuoka/st...47067111231489

Lexus RC F GT3 didn't fared well at GT300 this season. Maybe Lexus also takes similar measures like Nissan did with the GT-R?

[TF110]

Originally Posted by hvr777

Lexus RC F GT3 didn't fared well at GT300 this season. Maybe Lexus also takes similar measures like Nissan did with the GT-R?

Probably because K-Tunes switched from Bridgestone tires. I don't know why they went to Dunlop.

[hvr777]

Originally Posted by TF110

Probably because K-Tunes switched from Bridgestone tires. I don't know why they went to Dunlop.

That may play the part as well. Similar to #60 LM Corsa which switched from DL to MI, the team was rather slumped even worse.

[gert]

Goodsmile Racing & Team UKYO keep Taniguchi and Kataoka

http://www.dailysportscar.com/2020/1...21-lineup.html

[hvr777]

Originally Posted by gert

Goodsmile Racing & Team UKYO keep Taniguchi and Kataoka

http://www.dailysportscar.com/2020/1...21-lineup.html

I think NOB & Tatsuya is the longest driver pairing ever in Super GT. It's going to be their 10th season on next year.

[bentley speed 8]

They had pretty awful qualifying pace this year. If they can fix that come next year, a 4th title is not out of their way.

[TheNo1F1Fan]

Not surprised by the lineup because there's no other choice than these two.

[Japanese Samurai]

Latest Autosport magazine reports GT300 tire war.
In the article, it revealed the open secret that Yokohama supplies two kind of tires.
Yokohama supplies bespoke-specific tires to teams participating in the tire development test, and customer-specific tires to teams that cannot afford to participate.

[TF110]

Originally Posted by Japanese Samurai

Latest Autosport magazine reports GT300 tire war.
In the article, it revealed the open secret that Yokohama supplies two kind of tires.
Yokohama supplies bespoke-specific tires to teams participating in the tire development test, and customer-specific tires to teams that cannot afford to participate.

Interesting. Is this the same for other tire makes?

[Japanese Samurai]

No.
Other tire manufacturers supply special tires to everyone because the number of supply teams is small.
However, Michelin supplies spec tires for GT3/GTE as a manufacturer policy to prevent excessive competition in GT300.

[Japanese Samurai]

Autosport magazine 2021 GT500 silly season report.
https://www.as-books.jp/books/info.php?no=AST20201225
https://www.as-books.jp/books/preview.php?no=7506

Honda: Oyu might step up to GT500? Matsushita will compete in GT500?
Toyota: Kenta Yamashita will join Team Tom's as substitute for Cassidy? Sena Sakaguchi might step up to GT500?
Nissan: Lucas Auer and DTM driver will participate in NISMO driver's audition?

[Japanese Samurai]

According to Autosport web,
Naoki Yamamoto (#100) says the fuel alert didn't work because Honda had canceled engine-related alerts in the final round. And it was not informed to drivers.
https://www.as-web.jp/supergt/657657?all