Formula 1
Formula 1
R
Emilia Romagna GP
18 Apr
Race in
47 days
09 May
Next event in
65 days
23 May
Race in
82 days
R
Azerbaijan GP
06 Jun
Race in
96 days
13 Jun
Race in
103 days
27 Jun
Race in
117 days
04 Jul
Next event in
121 days
18 Jul
Race in
138 days
R
Hungarian GP
01 Aug
Race in
152 days
29 Aug
Race in
180 days
05 Sep
Race in
187 days
12 Sep
Race in
194 days
26 Sep
Race in
208 days
R
Singapore GP
03 Oct
Next event in
212 days
10 Oct
Race in
222 days
R
United States GP
24 Oct
Race in
236 days
31 Oct
Race in
243 days
R
Australian GP
21 Nov
Race in
264 days
R
Saudi Arabia GP
05 Dec
Race in
278 days
R
Abu Dhabi GP
12 Dec
Race in
285 days

Pirelli orders teams to raise rear tyre pressures for race

Pirelli has raised the minimum rear tyre pressures for the United States GP from 20.0 to 21.5 psi between qualifying and the race.

Pirelli orders teams to raise rear tyre pressures for race

The unusual decision means tyre performance in the race could be a step into the unknown for the F1 teams.

Warmer weather on Sunday also means that information gathered by the teams yesterday could have less relevance.

Before a race weekend, Pirelli issues prescriptions that include minimum pressures and camber limits, and it reserves the right to make adjustments if necessary.

Usually that happens after Friday running, but because of the rain it had no dry tyre information until Saturday.

Due to parc ferme regulations, Pirelli can't mandate a camber change after qualifying, and thus has to rely solely on adjusting pressures to protect the rears, which suffered more than expected.

"We need to guarantee the integrity of our product, the system is just for that," Pirelli F1 boss Mario Isola told Motorsport.com.

"When we have a wet Friday like it was here we collect data from FP3 and qualy. The procedure is the usual one, so we compare the data we receive from the teams with the simulations.

"We started to analyse data immediately after FP3, and we were in a position to give feedback after a few hours, that is the usual system.

"We had a higher severity on the rear tyres compared with simulations, so we had to raise the pressure. It's not very big, but it's a sensitive change. If it happens on Saturday, we don't change the camber, we just review the pressure."

Asked what the impact might be in the race, Isola added: "It's not a big change in terms of balance.

"It's difficult to predict any effect also, because we don't have much data coming from the weekend. I didn't have any complaints or feedback from the teams."

After qualifying, Mercedes boss Toto Wolff made it clear that rear tyres could be the key to the race, especially with Kimi Raikkonen on a different starting tyre to the Mercedes drivers and his Ferrari teammate Sebastian Vettel.

"I think we've seen today in the long runs that the tyres are rear limited, so the car's rear limited," he said. "And that will be a topic tomorrow in the race, how to make the tyres last.

"Because strategy wise it's not completely clear what the optimum strategy is."

shares
comments
Honda gains leave Verstappen "very excited" for 2019

Previous article

Honda gains leave Verstappen "very excited" for 2019

Next article

Nissan "very unhappy" about Toro Rosso's Albon bid

Nissan "very unhappy" about Toro Rosso's Albon bid
Load comments

About this article

Series Formula 1
Event United States GP
Author Adam Cooper
The mantra Ocon must follow to challenge Alonso at Alpine Prime

The mantra Ocon must follow to challenge Alonso at Alpine

OPINION: It's been an uneasy ride for Esteban Ocon since his F1 comeback - and fresh challenges lie in wait as he's joined by double world champion Fernando Alonso in the newly rebranded Alpine team. STUART CODLING sets out a roadmap to success…

Why Haas is willing to sacrifice its 2021 F1 season Prime

Why Haas is willing to sacrifice its 2021 F1 season

Every Formula 1 team is facing the same difficult decision this season: how do you split precious aero development time between the current car and the all-new 2022 project?

The big questions of F1 2021 - Karun Chandhok Prime

The big questions of F1 2021 - Karun Chandhok

After an unprecedented season last year, there are plenty of questions and storylines for the upcoming Formula 1 campaign. Sky Sports F1 pundit Karun Chandhok gives his verdict.

How McLaren F1’s new investors have already made an impact Prime

How McLaren F1’s new investors have already made an impact

The deal McLaren concluded with MSP Sports Capital last year which will help the cash-strapped Formula 1 team pay for much-needed infrastructure upgrades, also points toward the future for F1 itself, says GP Racing's Stuart Codling.

Formula 1
Feb 27, 2021
Why Verstappen isn't interested in the hype game Prime

Why Verstappen isn't interested in the hype game

In a pre-season where Red Bull has been unusually quiet, Max Verstappen has also been guarded about the team's fortunes in 2021. Even after trying the RB16B for the first time at Silverstone, the Dutchman was careful to manage expectations

Formula 1
Feb 26, 2021
The pros and cons of F1's 2021 rule changes Prime

The pros and cons of F1's 2021 rule changes

In the strategy for grand prix racing's future, 2021 represents a significant step towards the goal of closer racing and a more level playing field. That's the theory behind the latest raft of changes, but will they have the desired effect?

Formula 1
Feb 24, 2021
What Red Bull is trying to hide with its RB16B launch Prime

What Red Bull is trying to hide with its RB16B launch

Red Bull made no secret of the fact its 2021 F1 car is an evolution of its predecessor, but in keeping the same foundations while hiding some tightly-guarded updates with its RB16B, the team aims to avoid suffering the same pitfalls of previous years

Formula 1
Feb 23, 2021
How Albon plans to fight his way out of Red Bull limbo Prime

How Albon plans to fight his way out of Red Bull limbo

Alex Albon has faced the media for the first time since he lost his Red Bull drive at the end of 2020 and dropped out of a Formula 1 race seat altogether. He has a history of bouncing back from setbacks, so here's what he must do to rise again

Formula 1
Feb 23, 2021