Faszination Auto
02.12.2013 um 10:20
... sehr traurig diese geschichte über diese 2 männer ... wobei mir walker natürlich aufgrund der f&f filmreihe bekannter war! mögen sie beide in frieden ruhen ...
und der gt. tja, in/unter fachkreisen und professionals als einer der "gefährlichsten" supersportler eingestuft!!! einmal im grenzbereich, gehört sehr viel übung in wieder zu zähmen. weiter noch, gilt er als nahezu unverzeihlich gegenüber fahrfehlern ...
wir haben hier zwar ne traktionskontrolle (die eh überfordert ist in diesem speziellen fall), aber von stabiltätskontrolle fehlt jegliche spur!
walter röhrl sagte zum cgt, dass es die einzige kiste sei, die ihm jemals angst gemacht hat!
---
hier mal ein längerer (zwar alt, aber aufschlussreich) bericht über den gt:
->
"A Superhuman Sportster
By Joshua Dowling
The Sydney Morning Herald
Friday November 15 2002
The release of Porsche's Carrera GT, which will challenge the Ferrari Enzo for the title of the world's fastest car, has been delayed because one of its most experienced test drivers says it is too powerful for mere mortals.
Former world rally champion and Porsche test driver Walter Rohrl told Drive the new Porsche supercar is "the first car in my life that I drive and I feel scared".
Just three Australians have ordered one, but they have told Porsche their cars will be garaged in Europe because the Carrera GT cannot be registered here.
Rohrl, who has been testing the Carrera GT in prototype form for the past three years, said it is so powerful that it spins the rear wheels in each gear up to fifth in its six-ratio box.
Power and acceleration figures are yet to be announced but Rohrl gave a clue to the engine's awesome performance, saying that the 5.5-litre V10 produces 450Nm of torque from as little as 2000rpm.
Overseas reports claim that the engine has a maximum of 450kW and 600Nm and that the engine revs to 9000rpm.
Earlier this year, Rohrl said, the engineering team was about to cancel a day's testing at the famous Nurburgring circuit because of wet weather. But, Rohrl said, when he insisted the car had to be tested in slippery conditions,he discovered the car's daunting performance.
"I came back into the pits and I was white," Rohrl said. "I immediately said to the engineers that we need one button for the wet and one button for the dry", referring to the need for a traction control switch.
Originally, he said, there were no plans to fit electronic traction control to the Carrera GT but his insistence has forced Porsche to develop a system at late notice.
Porsche is also trying to refine the gearbox -- but getting so many heavy-duty parts to move smoothly and quickly has proved challenging for engineers.
Rohrl says the car will not be released "until it is perfect" and that the maker is under no time pressure to deliver the Carrera GT.
"That is one of the good things about projects like this," he says. "Everyone wants the best and we will do what it takes, as long as it takes, to build the best.
"The car will sell whenever we bring it out."
Since its unveiling in concept car form at the 2000 Paris motor show, the Carrera GT has been on the road frequently as part of Porsche's rigorous testing program and accordingly has often been caught wearing little disguise (above).
The Carrera GT was at the Estoril F1 race track in Portugal last week for dry-weather testing. Rohrl, who was attending a media release for the new Porsche Cayenne 4WD at the time, was on the phone each night to check on the progress of his "baby".
At the Nurburgring, Rohrl tested the car with several tyre combinations and found that the 20-inch Michelin tyres, while excellent in the dry, were more of a handful in the wet than the equivalent Pirellis, on which he was 20 seconds a lap quicker around the 22km circuit.
Porsche has yet to make top speed claims about the Carrera GT but it has been reported that its tyres will be rated to 400kmh because the car is likely to exceed 350kmh.
The current benchmark is the three-seater McLaren F1 road car which recorded a top speed of 386.7kmh set in 1999. But this model has not been in production for four years, leaving the fight open for Porsche and Ferrari.
On paper, an acceleration time of 3.7 seconds for the 0-100kmh sprint is likely for the Carerra GT. Rohrl would not give an estimate.
"We develop the car to be the best we can possibly build and then put a stop watch on it," he said. "We don't come up with a time and say 'this is what we must achieve' because then you have a limit." Porsche plans to build no more than 1000 Carerra GTs (Ferrari is building 399 Enzos) over three years starting from mid-2003, assembling them by hand at the company's Leipzig plant alongside the Cayenne 4WD."
---
und eine neuere reifenspezifikation kann aus einem zügellosen monster etwas fahrbares machen!
auch bei porsche war man sich dieser sache seit jahren bewusst (fasst ne dekade) und hat dsbzgl. mit michelin einen neuen compoundmix entwickelt. pressemitteilung ist vom august dieses jahres!
->
"Newly Developed Tires for the Porsche Carrera GT
Atlanta. Dr. Ing. h.c. F. Porsche AG, based in Stuttgart, has developed a new tire for the Carrera GT in partnership with tire manufacturer Michelin. The new tire once again noticeably enhances the handling of the 1,270 versions of the super sports car built between 2003 and 2006. The new Michelin Pilot Super Sport tire, which now replaces the current Pilot Sport PS2 tire on the Carrera GT, brings together the findings of ten years' worth of tire development to give drivers of the Carrera GT noticeably improved handling, even faster lap times and a more harmonious driving experience overall.
Drivers will even see benefits in relation to the stability of the Porsche model at its top speed of 330 km/h, as well as its behavior at high lateral acceleration speeds. This is all down to the new structure of the tire, which, of course, features the Porsche specification "N0" on the sidewalls. The tread compound of the Pilot Super Sport tire, which is manufactured on the same production line as Michelin racing tires, is based on "dual-compound" technology. With this technology, different rubber compounds are used for the inside and outside of the tread. This concept offers maximum grip on bends and highly precise steering behavior. What's more, the belt is made from an especially durable mix of aramid fibers, which are five times lighter than steel but deliver the same tensile strength. In addition, the variable contact area distributes the pressure evenly across the tire, meaning as much of the tread as possible is always in contact with the asphalt under any driving conditions.
The new Carrera GT tires are available now in 265/35 ZR 19 98Y "N0" and 335/30 ZR 20 108Y "N0" dimensions. Alongside optimized performance criteria, these tires offer the cost-effective side-effect of increased mileage: Compared to the previous tire, mileage is up to 10% higher on normal roads, and even as much as 20% higher when the tires are used on tough race tracks. The new tire also improves braking performance, showing that, even after ten years, Porsche is still working just as hard to look after drivers of its older models as it does to look after drivers of its new vehicles."
---
wie dem auch sei, eine sehr traurige geschichte ...
