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02-21-2009, 02:03 PM
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Pit Crew
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Join Date: May 2008
Location: Cambridge, MA
Posts: 128
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CyberEVO Fastest Tuning Car at Fuji Speedway
Quote:
2月17日に富士スピードウェイ(FSW)で行われたサイバーエボ号の空力テスト走行で、非公式ながらチュ ーニングカー最速と思われる1分41秒434を記録しました。ドライバーはもちろんターザン山 田さんです。
初のFSW走行となった前月24日の HKS PREMIUM DAY in FUJI SPEED WAY では筑波サーキットとはあまりに違うダウンフォースにエアロパーツの「着陸」がおき、時間いっぱい対策を施 しましたがそれでも無念のノータイム。。。
今回はその反省を生かし UNLIMITED WORKS にて車高を含めた車両再調整、VOLTEX にて高速域でバランスするエアロパーツの改良、また CyberEvo ではリアルタイムサスペンションストローク解析装置を開発し富士での実走テストに挑みました。
走っては調整、走っては調整を繰り返し、高速域のクセがわかってくるにしたがいターザン山田×サイバーエボ 号は1分44秒、43秒、42秒と恐ろしいまでのタイムアップをはじめ、ノーマルGSRトランスミッション がうなりを上げる中、先の通り誰もが当初予想しなかったタイムを記録しました。
また解析でわかった最高速度 281km/h 時にダウンフォース 950kgf という結果にも驚きました。もう一踏ん張りで天井が走れます(笑)。
Via world time attack
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On Sunday February 17 at Fuji Speedway, a test run of the new aerodynamics of the CyberEVO recorded the fastest unoffical lap time for a tuning car. The car was driven by Mr Eiji “Tarzan” Yamada.
This was our first full day of testing at FSW since the HKS Premium Day. There we ran into problems with too-much downforce causing the car to bottom out on long straights. We readjusted the ride-height, suspension dynamics and aero parts to function better with the higher speeds seen at FSW with the help of real-time suspension stroke analysis.
Making fine tune adjustments during the day across multiple laps, while Mr Yamada learned the intricacies of the circuit; we were able to get a 1min44sec lap, then 1min43sec and finally down to 1min42sec. Unfortunately we ran into problems with the transmission and couldn’t continue.
Analysis revealed a maximum speed of 281km/h (174.6mph) at a downforce of 950kgf which was surprising.
Via world time attack
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02-21-2009, 10:33 PM
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Rookie
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Join Date: Aug 2008
Location: Syracuse, NY
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I'd be interested in seeing what other popular time attack cars over there have run there time wise to have something to compare to.
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02-21-2009, 11:27 PM
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Track Super Star
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Join Date: May 2008
Posts: 3,325
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Me too ^^^
Also, what are the set of rules like over there? I see treaded Yokohama tires but I imagine that it is some of their "secret sauce" qualifying only tires that are unavailable to mere mortals (and not legal at RTA anyway)
__________________
2007 Street/Mod Tuner Shootout, 2007-2008 RTA Street, 2010 Superlap Ltd, 2011 Modified Magazine Tuner shootout, 2011 GTA Ltd
92% overall class win record during 5 years of Time Attack racing! Fastest Subaru in 49 of 53 races! 98% fastest Subaru in class! 40 track records! 6 championships!
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02-22-2009, 04:02 PM
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Rookie
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Join Date: Aug 2008
Location: Syracuse, NY
Posts: 425
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How are the softer treaded tire compounds not allowed in mod but in unlimited the softer DOT slicks such as the A6 and R91 allowed...simply because it'd make it a single tire class?
In Japan there are a bunch of full soft treaded tires like that, Yoko of course has the A048 but I've heard it's not even the best...Dunlop has one, Hankook, Bridgestone, maybe 1 or 2 others.
I wish some of them made it over here.
As far as their rules I think they're basically similar to how current RTA unlimited looks, just running the treaded tires.
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02-22-2009, 04:08 PM
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Pit Crew
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Join Date: May 2008
Location: Cambridge, MA
Posts: 128
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They mostly use A048's, but it has a softer compound, similar but not quite as sticky to a toyo proxie ra-1.
They have noise limits.
The OEM chassis and suspension pickups cannot be modified (This is why the Team Tarzan Tomei/Cusco/Voltex Impreza and HKS CT230r don't compete in japanese time attack events).
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02-22-2009, 04:12 PM
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Rookie
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Join Date: Aug 2008
Location: Syracuse, NY
Posts: 425
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Is super lap battle different from this then and that's why the CT230 ran there? I haven't heard of a series similar to RTA over there, just lap battle and then individually hosted attacks.
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02-22-2009, 04:41 PM
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Track Super Star
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Join Date: May 2008
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RTA rules require that any tire used must be readily available to the public. Not only are Yok's "special" A048's not available to mere mortals, but the RTA staff has singled out this tire (and a few others) as specifically not allowed. Even in Unlimited class.
Yes, SLB has different tire rules than RTA. Strangely, SLB is much looser in Unl and street but much tighter in Limited (Mod) class. Go figure.....
__________________
2007 Street/Mod Tuner Shootout, 2007-2008 RTA Street, 2010 Superlap Ltd, 2011 Modified Magazine Tuner shootout, 2011 GTA Ltd
92% overall class win record during 5 years of Time Attack racing! Fastest Subaru in 49 of 53 races! 98% fastest Subaru in class! 40 track records! 6 championships!
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02-22-2009, 04:42 PM
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Spectator
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Join Date: Aug 2008
Posts: 63
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Do you have reports for other peoples times on Fuji? Like Original Runduce, Zero/Sports, JUN etc...
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02-22-2009, 07:17 PM
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Pit Crew
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Join Date: May 2008
Location: Cambridge, MA
Posts: 128
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The RTA format is similar to the DeSpeed Tsukuba Superlap <DESSPEED CUP 筑波1000 スーパーラップ> and the BE Circuit Time Attack. There they have a "Pro" class which is basically RTA Unlimited and the semi-pro class which is like Modified.
The "Sticky" A048s' (and now Advan Neova AD08) you can't get here, but they're easily available in Japan.
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02-22-2009, 08:04 PM
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Track Super Star
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Join Date: May 2008
Posts: 3,325
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Quote:
Originally Posted by eclip5e
The "Sticky" A048s' (and now Advan Neova AD08) you can't get here, but they're easily available in Japan.
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I've had both. But I am "special"...... 
__________________
2007 Street/Mod Tuner Shootout, 2007-2008 RTA Street, 2010 Superlap Ltd, 2011 Modified Magazine Tuner shootout, 2011 GTA Ltd
92% overall class win record during 5 years of Time Attack racing! Fastest Subaru in 49 of 53 races! 98% fastest Subaru in class! 40 track records! 6 championships!
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