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Pirelli: Spa vibrations not yet finalized

Tuesday, September 5th, 2017 | Sports

05. September 2017 – 08:05

The fact that the tires in Spa caused vibrations is no longer a cause for concern

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(cafetheology.org) – Formula 1 tire supplier Pirelli has not yet found a final explanation for the strong vibrations of its tires at the Belgium Grand Prix in Spa-Francorchamps. Although the problem was solved in Monza two weeks later, the Italians wanted to investigate the matter further – alone to obtain useful information about his product. "The cause is not clear," Pirelli manager Mario Isola admits, "but we have some ideas." The Formula 1 has more grip and torque this year, which can be a reason for the vibrations. "They came without cars touching the edge," Isola says. "It has happened at speeds of 100 and 200 km / h." At the exit of slow curves, that is, at high traction, it fluttered particularly violently – especially after the La-Source hairpin and the bus-stop chicane. "The car did not matter, only speed and the conditions." The reverse is true: The vibrations have nothing to do with the design Pirelli has chosen for its 2017 models. Therefore, the engineers at Spa waived an adjustment of the prescriptions for the air pressure, not to mention a redesign. "We have analyzed the teams with the teams," says Isola, stating: "There is no problem with the design." Why, then, did they deal with the issue in Milan at all? "Isola explains:" Because the vibrations were the subject of television, we have examined them intensively, and we noticed that they were also used in other races. " The fact that tires cause trouble is not unusual in itself. On the contrary, according to Isola, "the tire vibrates at a certain frequency, the data they have received from us in December, when they design their car, they avoid constructing parts that vibrate at the same frequency."

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