2017 GSF

952分

個人積分：952分

文章編號：87152991

The new Audi R8 is introduced in 2017, 13% of which structure is made by carbon fiber...

2015 R8 V10 plus: 3660lbs, 174.6Lx76Wx49.3H
2017 R8 V10 plus: 3605lbs, 174.3Lx76.4Wx48.8H

Maybe you think it's only 55lbs lighter??? But, I think Audi should increase the body rigidity of the new R8 a bit!!! (Again, numbers cannot tell everything!!! 笑到噴淚

)

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dlin4229

952分

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dlin4229

個人積分：952分

文章編號：87153030

Obviously, this Lambo is much lighter than R8 but I don't think this Lambo is extensively built by carbon fiber like LFA...

So, I guess R8 is slower(heavier) but should be more PREDICTABLE!!! 笑到噴淚

2017 R8 V10 plus: 3605lbs, 174.3Lx76.4Wx48.8H
2020 Lambo Huracan: 3135lbs, 175.6Lx76.1Wx45.9H

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dlin4229

952分

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dlin4229

個人積分：952分

文章編號：87153123

This very new Lambo is built extensively by carbon fiber like LFA... (All of its frames are carbon fiber)

Lamborghini Essenza SCV12

However, it still weights 3250lbs which is still heavier than many normal Lambos!!! 笑到噴淚

By the way, this extremely hardcore Lambo also costs ridiculously high, 2.5M USD!!! 嚇到吃手手

(That's over 6 times of LFA's price!!!)

PS: Some Japanese premium cars could be as rigid as some supercars!!! (This could be a bit stretched but at least Japanese premium cars are more rigid than we thought!!! 笑到噴淚

)

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dlin4229

952分

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dlin4229

個人積分：952分

文章編號：87153388

The below article mentions about how the new Audi R8 adopts carbon fiber for its chassis...

Audi R8 seat wall: A prelude to production

The below article mentions the new R8 is 40% stiffer than the old one...
(LC500 is 60% stiffer than regular GS and stiffer than LFA. LFA should be AT LEAST as stiff as the new R8, thanks to 65% of carbon fiber implementation. So, I expect my current GSF should be AT LEAST as stiff as the old R8!!! rock

)

New R8 V10

PS: Lexus, PLEASE bring your next F car!!! Heavy... No problem. No carbon fiber... No problem. Just more body rigidity without hefy price!!! (I will add a supercharger for it!!! 笑到噴淚

)

I think that's why the new Z is SO HEAVY... (Actually, you can tune new Z which is much easier than adding a S/C!!! 笑到噴淚

)

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dlin4229

952分

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dlin4229

個人積分：952分

文章編號：87153712

R8 is AWD(+150lbs), so the new R8 should be only 200-250lbs heavier than LFA. Therefore, I don't think the new R8 is as rigid as LFA... 點點點

2017 R8 V10 plus: 3605lbs, 174.3Lx76.4Wx48.8H (13% is carbon fiber)
LFA : 3263lbs, 177.4Lx74.6Wx48H (65% is carbon fiber)

So, my current GSF could be a little more rigid than the old R8 but definitely not as rigid as the new R8... OF COURSE!!! 笑到噴淚

(RCF should definitely be more rigid than the old R8)

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dlin4229

952分

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dlin4229

個人積分：952分

文章編號：87153844

The below is how LFA chassis is made...

---------------------------------------

The LFA chassis consists of three main pieces: a Carbon Fiber Reinforced Plastic (CFRP) center tub, and aluminum alloy subframes extending forward and back. Toyota relied on its own extensive textile weaving heritage and expertise to help construct the carbon-fiber tub. Labor-intensive resin-impregnated carbon-fiber sheets are hand laid to form the exceptionally stiff and strong cabin structure. Resin Transfer Molding (RTM), where preformed carbon fiber is impregnated with resin, is used for the floor, transmission tunnel and hood. Sheet Molding Compound (C-SMC), where short-fiber carbon-fiber material is hot-pressed into a die, is used for the C-pillars and the rear floor. In total, CFRP accounts for 65 percent of the weight of the LFA's body-in-white, with aluminum alloys representing the remaining 35 percent. With the CFRP, Toyota estimates it's about 220 lb. lighter than an all-aluminum structure.

PS: 65% by mass could be 80% by volume!!! (CFRP is 100% lighter than aluminum)

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dlin4229

952分

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dlin4229

個人積分：952分

文章編號：87155644

I just found this... rock

So, GSF is 10% more rigid than regular GS... (Not too bad!!! I hope it can be more, as GSF's ride frequency is about 15-20% higher than regular GS's... 笑到噴淚

)

Now, I know LC500 is 50% more rigid than GSF!!!

-------------------------

New joining techniques, alongside bracing of the car’s body-in-white, add about 10% to the static torsional stiffness of the GS’s monocoque chassis, while lightweight forged aluminium control arms, new rear suspension mounts, lowered and stiffened springs and uprated ZF Sachs dampers bring sporting purpose to the suspension. Braking is by Brembo iron discs all round, measuring 380mm up front and clamped by six-piston calipers, and backed up by an enlarged hydraulic master cylinder.

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dlin4229

952分

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dlin4229

個人積分：952分

文章編號：87160260

As you can see... The reason why LC500 is so heavy is it doesn't adopt aluminum for its main TUB but R8 does...

The main tub of LFA is built by carbon fiber but the main tub of R8 is mostly built by aluminum. Will they both have similar rigidity??? 點點點

(LC500 is more rigid than LFA)

PS: Japanese are slower but definitely NOT dumb!!! I don't think Japanese carbon fiber cars(LFA) will be only as rigid as European aluminum cars(R8)... 笑到噴淚

(Actually R8 is a heavier supercar. Many supercars are even lighter than R8!!!)

LC500

R8

LFA

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dlin4229

952分

樓主

dlin4229

個人積分：952分

文章編號：87160529

Some people say Japanese cars are aluminum cars... Actually they are not aluminum cars(aluminum is TOO EXPENSIVE for them)

In real life, the aluminum cars are actually those European supercars!!! 笑到噴淚

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dlin4229

952分

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dlin4229

個人積分：952分

文章編號：87161165

This Cayman is also mainly made by aluminum... (no carbon fiber in tub but R8 has some carbon fiber in its tub... That's why R8 is a bit more expensive!!! 笑到噴淚

)

(I don't mean aluminum cars are dangerous but I do believe that carbon fiber cars(LFA) should definitely be more rigid... And, LC500 is even more rigid than LFA...)

PS: I also found something from Internet like "Cayman is as rigid as LFA"??? (Maybe you believe it but definitely not me!!! 笑到噴淚

)

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2017 GSF

小惡魔新聞台

小惡魔廣編特輯

小惡魔市集

2017 GSF

小惡魔新聞台

小惡魔廣編特輯

小惡魔市集

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