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Koenigsegg's horizontal roller coaster

Discussion in 'Tech, Gadgets & Science Forum' started by E=mcsquared, Oct 23, 2012.

  1. E=mcsquared

    E=mcsquared JF-Expert Member

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    Oct 23, 2012
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    [h=1]Koenigsegg's horizontal roller coaster[/h][​IMG]By Dan Neil | The Wall Street Journal – 12 hours ago






    [​IMG]

    [h=4]MORE AT THE WALL STREET JOURNAL[/h]

    Accelerating a standstill to 186 mph in 14.5 seconds is a fairly kinetic event. Very loud, tunnel vision, urge to pee. One moment the Swedish countryside is just sitting there, looking lovely and serene; the next it's blowing past you in a violent blur of autumn colors. Herregud! I've been pillaged.

    The Koenigsegg Agera R, built by an extraordinary man named Christian von Koenigsegg, in Angelholm, Sweden, last year laid waste to a bunch of Guinness production-car records, among them: zero to 186 miles per hour and back to zero in 21.19 seconds. The very car I'm driving, in fact. And it is, it feels like, a horizontal roller coaster: At rest, the Agera R always seems poised in space, then hit the gas, over the top, and straight down, bang, bang, bang go the gears. A plunging vertigo takes over, a forward free-fall. The momentum builds in inexorable squares of mass and you scream your face off. Welcome to Six Flags Over Sweden.

    [​IMG]The Agera R—$2.5 million or so, about 1,000 to 1,140 horsepower (depending on fuel), about 3,200 pounds—continues to crush passengers in excess of 1g of linear acceleration until somewhere north of 100 mph, at which point the car's aerodynamic shape begins to exert significant downforce (660 pounds at 155 mph). The rate of acceleration levels off but it's still going upstairs like crazy (124 to 186 mph takes 7 seconds). This is telemetry as pornography.

    Mr. Koenigsegg estimates the car's top speed would clock in around 273 mph—faster than the Bugatti Veyron Super Sport's record of 267.8 mph—if, that is, he could find some stretch of Mars upon which to test it. On the company's conveniently located airfield, the prudent visitor gets on the brakes after touching 186 mph (I hit 190). The braking event from that speed requires less than 7 seconds and is likewise vigorous. It feels like your pants are going to fall off.

    In short, the Agera R is the thing that eats bats out of hell. I am overawed. And yet, it does seem an unlikely obsession for the reserved and purposeful Christian von Koenigsegg.

    There had been some concern that Koenigsegg was in financial trouble, and Mr. Koenigsegg, 40, admits business could be easier. The European market has lately fallen off the Earth. With an annual turnover of about €10 million ($13 million), he says, on 12 to 15 cars, Koenigsegg's financial aspirations are modest and the business is, for the moment, stable. "We're never going to make a personal fortune," he says in his IKEA-decorated office, in a former air-force maintenance facility. "The only reason we are still here is we accepted we were going to be small."

    My first visit to Ängelholm was in the mid-1990s, when the young Koenigsegg tried to kill me in one of his prototypes. He was a singular figure even then, as bald as the laughing Buddha—Mr. Koenigsegg suffers from alopecia but sort of rocks it, too. In those days he was building his reptilian hypercar in a quaint thatched-roof barn, which in due course burned down in 2003.

    The base's jet hangers proved an ideal workspace for Koenigsegg, and today the company's 52 employees quietly bustle through the day, hand-building amazing cars for ridiculous people. On the floor at the moment is a Popsicle-purple Agera R with gold-anodized cockpit appointments, destined for a customer in Shanghai. And they put Martha Stewart in jail.

    As a matter of industrial policy, the Swedish government has de-emphasized the domestic car business—note its refusal to bail out
    Saab—in favor of cleaner, information-based industries and IT. This has suited Koenigsegg well since the company's strategy is to take the essential car—the carbon-fiber core that Mr. Koenigsegg imagined two decades ago—and perpetually evolve it using the power of computer-assisted engineering in the hands of a few massively talented designers. As I walk through the offices, one of the staffers is redesigning the car's proprietary front-brake calipers, which is no trifling matter; another is using a CAE/fluid-dynamics program to refine the airflow around the front valence.

    "Building a car like this is about fighting physics," he says. "I'm not sure committees fight physics better than a few great guys."

    The Agera R's mugging of Newton begins with a bespoke, race-spec, dry-sump 5.0-liter, twin-turbocharged V8 weighing a mere 435 pounds and boasting some staggering statistics: 228 hp/liter of displacement; 737 pound-feet of torque from 2,700 to 7,300 rpm, with redline at 7,500 rpm; and a brake mean effective cylinder pressure (BMAP) of 28 bar, about 406 psi, which would blow most gas engines' spark plugs to the moon.

    And the sound? Your ears are going to need condoms.

    Sorry, it's about to get all geeky in here: The longitudinally midmounted V8 transfers power to the limited-slip e-diff through a Koenigsegg-designed seven-speed gearbox, with a twin-disc dry clutch and an 11-disc wet clutch arranged sequentially, working cooperatively, rather like a dual-clutch automated manual transmission. Still, under the best of circumstances, the Agera R's gearshifts are rough, and at light throttle and low speeds the car can buck and lurch like a poisoned pony.

    The Agera R is hard-core in every way you'd hope: carbon-aluminum monocoque; stressed engine and gearbox; chro-mo subframes; pushrod suspension; adaptive damping, ride height and aero. For 2013 the company is offering astonishing, hollow carbon-fiber wheels—the front wheel with tire weighs less than 25 pounds. Other upgrades include a new spring-loaded, adaptive rear wing and the Triplex rear suspension, comprising a bidirectional hydraulic strut mounted horizontally between the pushrod rockers. My test car doesn't have the Triplex rear suspension. Mr. Koenigsegg says it improves the car's antisquat characteristics.

    And speaking of squat: I know squat about how the Agera R handles. Considering the forces involved, the car is reasonably manageable on narrow, and wet, Swedish roads, just. It does have an amazing turning radius! You can turn this thing around in a drive-through. Mr. Koenigsegg assures me that his new car will pull in excess of 1.6 g lateral acceleration, and he is pondering a sub-7-minute go at the Nürburgring. Yahoo.

    She's not for the timid, that's for sure. Holding the revs at around 6 grand produces a galling, blasting staccato that could alert NATO. The cabin is rakish and dead cool, and the electronic amenities, the navigation and driver instruments, are first-rate. The driving position is like being a ball-turret gunner on a star destroyer.

    Want one? You're in luck. Mr. Koenigsegg has gone to the trouble of federalizing the Agera R—U.S. sales began this month—which, among other things, required developing a multimode stability-control system. Much needed, too. The Koenigsegg's 44/56 front/rear weight distribution, combined with the low polar moment of the midengine layout, makes the Agera R what you might call excitingly neutral. The stability control will help keep rich guys out of the hedges.

    But, clearly, the Agera R is not about nimble handling. From a man who is one of the most peaceable presences I've lately encountered, a gentle giant of a mind, this car is nothing but a weapon: a very large, very Norse, not-all-that-pretty ax meant to be thrown with staggering force at a great distance. You, dear reader, are looking at the fastest street car in the world.

    And that's how they settle things up North.
     
  2. BJBM

    BJBM JF-Expert Member

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    Feb 6, 2016
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    Hiyo mashine matata sana, hata bugatti hasogei
     
  3. S.W.A.T

    S.W.A.T Member

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    Inawezekana kweli hii koenisgegg ikaizidi Speed Bugatti,Lakini Bugatti ni mambo nyingine kutokana na uwezo wake mkubwa wa aerodynamics,it means Bugatti inaweza kukimbia kwa spidi kali sana bado isitetereke tokana na upepo,gari kama GT venom pia inakimbia sana ila haiwezi jihimili katika barabara ikiwa mwendo kasi,GT venom inaizidi Bugatti ila zikiwekwa road Gt anatolewa k.o,hata hii Koenigsegg bado kwa bugatti,Bado sijaona competitor wa wa Bugatti japokuwa hii Koen ina bei kuliko Bugatti na ndiyo gari ya kwanza expensive zaidi duniani.
     
  4. Bavaria

    Bavaria JF-Expert Member

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    Feb 7, 2016
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    Magari mengi yanaizidi Buggati kwa speed ila Bugati ina "aero" nzuri kiasi kwamba inaweza kuchallenge hizo gari zote.
     
  5. BJBM

    BJBM JF-Expert Member

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    Feb 11, 2016
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    Angalia hii video afu leta mrejesho
     
  6. S.W.A.T

    S.W.A.T Member

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    Feb 12, 2016
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    Ngoja nikueleweshe vizuri,bugatti ilijaribiwa na kufikia 431km/hr na kuvunja rekodi katika Guiness,baadae Gt venom walikataa na kusema kuwa gari iliyotumika ilikuwa ni test-mode na yao iliyokwenda 415km/hr ilikuw tayar kwa matumizi personal,hata hivyo engineers wa bugatti wameamua kuiweka bugatti limited hadi 375km/hr lakini katika jaribio ilikwenda hadi 408km/hr yaani ilizidi,Bugatti katika high speed yaani 431km/hr inamaliza tires ndani ya dakika 15 na tanki linakua tupu ndani ya dakika 12,ina horse power ya 1200 na 4 turbo charge,64 valve,Kampuni inayotengeneza tires za bugatti (Michelin) mpaka sasa hawajapata solution ya kuzuia tires zisiwake moto pindi inapokuwa at top speed,bugatti supersport vitesse ilikimbia hadi 408km/hr huku rooftop ikiwa open na ikawa stable sana barabarani hivyo aerodynamic yake haina mpinzani,ni busara tu iliyotumika kuilimit bugatti tokana na safety reasons ila haina mpinzani. Bado una swali,halafu dunia nzima bugatti zinabadilishWA tairi zake ufaransa tu,huko ndiko kuna kifaa maalum cha kufungulia tires na gharama yake ni usd70k kama milioni 140 tshs na kuchange rim na tires ni usd120k kama milioni 240 tshs.Hivyo thats why Volkswagen wameamua kuilimit kwa maana maintanance zake unanunua hummer,Uliza kama una swali BJBM.
     
  7. Smokey D

    Smokey D JF-Expert Member

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    Feb 12, 2016
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    S.W.A.T ametoa ufafanuzi mzuri sana sihitaji kuongeza kitu..Buggati haina mpizani.Kuna hii list
    1. Buggati Veyron
    2. Koenigsegg Agera R
    3. GT Venom
    4. Lykan Hyper Sport[​IMG]
     
  8. BJBM

    BJBM JF-Expert Member

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    Feb 14, 2016
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    Mkuu upo sahihi kabisa kwa asilimia 101 kama sio 1000 kabisa. Bugatti ni the best ktk topspeed kuliko mashine yoyote sababu ya aero yake lakini naomba upitie uzi huu www.jamiiforums.com/threads/bugatti-mpya-chiron.980682/page-2 thread no.23, ili ujue kwa nini nna prefer sana koenigsegg kuliko bugatti.
     
  9. S.W.A.T

    S.W.A.T Member

    #9
    Feb 14, 2016
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    Sawa kaka nimesoma nimekuelewa,Koenigsegg ni gari nzuri,ila nikizitazama Koenigsegg,Ferarri na Venom Gt naona kama zimekaa kama gari za F1,Ila wameweka body kama cover ila ni formula moja na F1 Cars naona,Ila Bugatti ni gari bwana,kwanza engineers wamedesign body amazing sana,pia niliiona Koenigsegg ndani yaani haina mvuto tofauti na bugatti ambapo ndani unahisi kweli upo kwenye gari,Koenigsegg wameibania sana aisee.
     
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