2011 Japanese Super GT

[Japanese Samurai]

(JAF-GT300 constructor's round-table talk Part2)
Weak point of FIA-GT3 car is update kits. It becomes less competitive if it does not equip with the update kits released every year.
The cost of update kits is about 10 million to 20 million. And equipment of the update kits must be performed only by manufacturers.
Therefore, there is an idea that to replace with a new car every year is more economical.

Then, they are considering the Mother chassis plan of JMIA.
This is the idea of unifying frame and upright, etc. And the body is a multi-make.
They are examining whether the long life racing engine can be developed based on 5-litter engine of Lexus, too.
And one-make race series called "Inter Proto Series" is ready to be launched in Japan. There is also an idea which diverts the "IPS" chassis to JAF-GT300.

[FIRE]

Allowing updates is a big flaw in GT3 and GT4 rules. In my opinion after a car is homologated they should not allow updates for 3 years.


Inter Proto Series is something like Formula Le Mans?

[Japanese Samurai]

This is a mock-up of IPS car. (Japanese style NASCAR)
*MR-layout, CFRP monocoque and Tublar frame
*Size:4450*1900*1150(mm), WB:2800(mm), Tire size: 18inch
*Engine: 4 liters V8 made of Tom's (production based engine)
*Price: About 20 million yen (including the engine)

[MitchZ06]

Atleast JAPCAR (IPS) can look a hell of a lot better than NASCRAP.

[TF110]

So how much more hp will GT500 cars gain for next year with this restrictor break? 25hp? and they'll be 1050kg? They're going to be quite fast.

[MitchZ06]

Would appear they'll stick to the 500hp (GT525 sounds weird) but less weight, better aero and carbon brakes would make them even faster.

[TF110]

What Japanese Samurai has said is that they'll also receive a restrictor break. On top of the things that you're mentioning.

[MitchZ06]

I think we need to know what 'one rank' is. With some GT3 cars being twice the GT300 output limit I'd say GT500 needs to become GT550 or GT600.

[TF110]

1 Rank seems to be at least 1.1mm in size for the GT3/300 cars. Not sure if that'd be the same for GT500. I don't think they'll change the name of the class though

[rich07]

Originally Posted by MitchZ06

I think we need to know what 'one rank' is. With some GT3 cars being twice the GT300 output limit I'd say GT500 needs to become GT550 or GT600.

I've heard numerous rumours over the years say that the GT500 cars actually have more horsepower then that, unofficially..

Even James Courtney who used to race for Toyota was quoted in a magazine article as saying that the cars made more power then 500hp-something about 700hp in qualifying if my memory serves me correctly.

[MitchZ06]

Sounds a bit ridiculous to be putting out 700hp for qualifying. If GT5 is anything to go by (they have the license for SuperGT in games) then most cars are 480-500hp. However I'm still not sure especially as GT500 and GT300 as names showed up when JGTC was still GT1 and GT2 specs.

[rich07]

Originally Posted by MitchZ06

Sounds a bit ridiculous to be putting out 700hp for qualifying. If GT5 is anything to go by (they have the license for SuperGT in games) then most cars are 480-500hp. However I'm still not sure especially as GT500 and GT300 as names showed up when JGTC was still GT1 and GT2 specs.

Yes it does sound a bit unelieable, maybe JC was using a creative licence with the truth. But all of those engines including the V8 that was in the Supra at the time that interview was printed are capable of over 500hp.

I would say the cars make more then 500hp but not much more. They're certainly capable of it but then you have to take into account reliability and fuel economy as well. Although that doesnt really matter in qualifying..

[MitchZ06]

Like the 1500hp 'qualifying trim' used in the old WSC?

[alexkiller8]

actualy cars use a "really close to standard specs" 3.4 v8 with mandatory restrictors of 29.1mm x 2, thege engines are high revlimit because come from the units used in formula nippon. With the restrictors the revlimit is reached close to 9000RPM, in this way i really doubt that the cars reach exactly 500hp, but should be around a 480-490 range. Even with different fuel maps in qualifying is really unprobable that the car can obtain more than 5-10 hp. So almost for now is sure that GT500 have 500 hp.
Different was some time ago when cars like toyota supra ran with an over 5.0l v8, because of displacement (more torque) with a really consumaption fuel map surely the car could be able to pass also 600hp in qualifying! is the same about the dbr9 that ran in gt500 during the 2009 season, who surely had more than 500hp to run (even if however much slower) with the gt500 cars.

The thing that i can tell you for sure is that in GT300 none of the cars has really 300hp! the gt2/gt3 cars have similiar (but shorter) restrictors size of ACO/FIA so the power is around 430-450hp, while the prototypes run with no less than 350hp

[Japanese Samurai]

AUTOSPORT says,
GT500 will become "550hp",
GT300 will become "450hp".

[MitchZ06]

Originally Posted by MitchZ06

I think we need to know what 'one rank' is. With some GT3 cars being twice the GT300 output limit I'd say GT500 needs to become GT550 or GT600.

Originally Posted by Japanese Samurai

AUTOSPORT says,
GT500 will become "550hp",
GT300 will become "450hp".

Can I claim this one?

[FIRE]

Originally Posted by MitchZ06

Atleast JAPCAR (IPS) can look a hell of a lot better than NASCRAP.

Looks better, but not great.

[MitchZ06]

Front - Spyker C8
Sides - Pagani Huayra
Rear half of glasshouse - Ferrari Enzo

Unimaginative but still works for me.

[Japanese Samurai]

**Keinosuke Taki's Honda SGT report -AUTOPOLIS round preview-

AUTOPOLIS are 4.674km, 7.2% of the max uphill gradient and 10% of the max downhill gradient. It is an up-and-down course.
It has many low-speed corners and middle-speed corners, and there are many corners where the maximum lateral acceleration acts irregularly.
For example, at 30R left corner, it converts into downhill from uphill during cornering. In ahead, there are two corners at which it turns on the right greatly.
These are the sections to which heavy load acts on the machine.
AUTOPOLIS is a circuit where the load to a chassis acts heavily.
Therefore, the machine with high frame rigidity becomes advantageous there.
In a word, it is a course suitable for HSV-010 GT.

AUTOPOLIS is a circuit where the car setup is difficult.
It has a middle-high-speed section, and has a technical low-speed section. The setup suitable for the latter section may be able to shorten lap time.
The right and wrong of this car setup will determine the victory or defeat of AUTOPOLIS round.

AUTOPOLIS is a circuit sensitive to the weight of the car.
In AUTOPOLIS round, gained driver's point times 1kg equal success ballast.
Success ballast of Weider(#1) is 52kg, rival (MOLA, #46) is 60kg. This is equal conditions in effect. Finishing ahead of the rival is important for us.

It is only one time that we made to run a front engine car in AUTOPOLIS.
It was a prototype test car of HSV-010. That is, we do not have the running data of HSV-010 in AUTOPOLIS. Moreover, characteristic of the test car and that of HSV-010 has changed a lot.
However, we are going to challenge the race with flexibly.
http://www.honda.co.jp/SuperGT/spcon...preview/vol31/
http://www.autopolis.jp/whats_ap/cou...se-map_001.jpg

[TF110]

I LOVE this track. Autopolis is awesome. The last sector is tricky, but get it right and you carry a lot of speed to the straight. Then the first turn to the right followed by another high speed turn, it's a great layout, especially the tight part halfway through leading to the short back straight.

[FordCosworthPanoz]

Originally Posted by TF110

I LOVE this track. Autopolis is awesome. The last sector is tricky, but get it right and you carry a lot of speed to the straight. Then the first turn to the right followed by another high speed turn, it's a great layout, especially the tight part halfway through leading to the short back straight.

Agree, oddly, my favourite Japanese circuits are Sugo and Autopolis. Love Suzuka as well, I just think Autopolis and Sugo put on better racing.

[Japanese Samurai]

**Yutaka Suzuki(NISMO team principal)'s NISMO SGT report -AUTOPOLIS round previw-

Having influence of success ballast, Fuji round brought a mortifying result for us (NISMO). However, we were able to gain the points, thanks to the strength of the team. We would like to have good results in AUTOPOLIS round, and want to compete for the championship with 4
GTRs.

We use the 3rd set of the fresh engines which carried out the performance improvement of VRH34B engine in this round (There is a three engine rule). This is the upgraded engine planned in pre-season.

AUTOPOLIS is a circuit with up-and-down and suitable for the characteristic of Nissan cars. In this round, success ballast becomes half weight. Therefore, it will be confused racing.
Since the characteristic of HSV-010 is alike that of GTR, we cannot be off our guard toward them. There are Lexus teams with light success ballast, too.
The tire choice and car setup in free practice will become important. The teams which did the tire test in advance will be advantageous. And teams with potential will be superiority.
We NISMO desire dry condition. However, Treluyer is competitive also in the rain condition. We would like to have a good result in this round, and to compete for championship advantageously.
http://www.nismo.co.jp/motorsports/r...7/preview.html

[TF110]

Any live feed for this race? I missed the last one someone had a link to.

[FordCosworthPanoz]

Originally Posted by TF110

Any live feed for this race? I missed the last one someone had a link to.

Yes please, managed to find a stream for Sugo and Suzuka this year and it was the best auto racing Ive seen all year outside of the LM24 and N24. A link would certainly be appreciated.

[BBSB]

Originally Posted by TF110

Any live feed for this race? I missed the last one someone had a link to.

Easy, just go back a few pages and you find that link. I can save you some work. Here: http://tentenths.com/forum/showthrea...126744&page=29