Pirelli “surprised” by teams’ data which prompted call for high tyre pressures

2020 Italian Grand Prix

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Formula 1’s official tyre supplier Pirelli has said it was surprised by the simulation data it received from teams ahead of the Italian Grand Prix weekend.

Pirelli uses the data to set its usage prescriptions for tyres ahead of the race weekend. Following the simulations it received from teams, Pirelli decided to increase the minimum front tyre pressures from 23.5 psi last year to 26 psi this year.

It has only stipulated higher tyres pressures than this on one previous occasion this year. At the second race at Silverstone, one week after three drivers suffered late-race tyre failures, the minimum front tyre pressures were raised to 27 psi.

“A common question that I had in the last couple of days is why the prescriptions are so different compared to last year, especially the front pressure that is 2.5 psi higher than 2019,” said Pirelli’s head of motorsport and F1 Mario Isola.

“This is due to the simulations from the teams. Since the beginning of the year, we had simulations showing a much higher load on the front in general on all the circuits.

“But for Monza, [which] is usually a low-downforce circuit, this difference is quite high. And therefore we have to react with obviously a high front pressure.”

Pirelli will verify the change against the data teams acquired on Friday, but does not expect it will lead to a change in the minimum pressures.

“We are waiting for telemetry because when I got the data, I was surprised as well. We never had this increase in one year going through the same circuit.

“But I will not be surprised if we confirm the prescriptions because effectively they are loading the front a lot more than last year.”

Ferrari driver Sebastian Vettel said the “balloon pressures” required by Pirelli has been to the detriment of his car’s handling.

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2020 Italian Grand Prix

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Dieter Rencken
Dieter Rencken has held full FIA Formula 1 media accreditation since 2000, during which period he has reported from over 300 grands prix, plus...
Keith Collantine
Lifelong motor sport fan Keith set up RaceFans in 2005 - when it was originally called F1 Fanatic. Having previously worked as a motoring...

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8 comments on “Pirelli “surprised” by teams’ data which prompted call for high tyre pressures”

  1. So the blame game continues. This ever increasing tyre pressure is quite ridiculous.

    1. obviously the teams shouldn’t have refused the tyres designed by pirelli for the expected forces this year

      1. never mind the reason WHY they rerejected them in the first place hm?

  2. I know that the cars are a lot different but I’d love to know the equivalent tyre pressures that teams were using in 2004.

    1. I believe tyre pressures have essentially doubled in the last 10-15 years

  3. Just let them run the risk of blowing the tyres, when they want to try and do the impossible. It makes for a better show for the fans.

    1. But then the drivers complain about Pirelli making unraceable tyres. Pirelli literally can’t do anything right, no matter what they do people will complain from all sides.

      An unenviable job for sure.

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