Toro Rosso F1 team explains cause of Russian GP double retirement

The Toro Rosso Formula 1 team has explained the problem that caused Pierre Gasly and Brendon Hartley to endure high-speed spins that led to their early Russian Grand Prix retirements

Toro Rosso F1 team explains cause of Russian GP double retirement

Gasly and Hartley started from 17th and 20th respectively after grid penalties, and reverted to an older-spec engine for Saturday.

Both drivers spun out in the race, completing just four laps before returning to the team's garage to retire.

Toro Rosso team principal Franz Tost said the incident was related to a piston sticking when the brakes reached hot temperatures.

"It was a frustrating Sunday for Toro Rosso as both cars had to retire," said Tost.

"For whatever reason we ended up with very hot front brakes and one piston in the calipers got stuck.

"This caused the overheating of the brake fluid and a long pedal. Therefore, we called the drivers to come to the garage.

"Obviously, being in parc ferme conditions, we didn't change anything from yesterday, so we need to investigate further what the reason is."

Gasly took to Twitter after the race to reveal that his spin exiting the sweeping Turn 3 approaching Turn 4 occurred at 280km/h (174mph).

"Since the start of the race I had a really strange feeling with the brake pedal, it went pretty long and got worse very quickly," he said.

"Then, on the third lap at Turn 4, I braked and the pedal went completely flat, so we lost all the front brakes and had to retire the car.

"We need to have a look at the data to see exactly what happened, but it's just a shame to see both cars retire so early in the race."

Hartley suffered a similar incident on the same lap, having overtaken Gasly earlier in the race before making an early stop as part of a strategy gamble requiring a lengthy second stint.

Hartley said: "I had a good start and passed Pierre before Turn 5, I was attacking the McLaren when the brake pedal went long.

"I reported it on the radio and then made our planned pit stop.

"We were going to try and be a bit cheeky with the strategy and do almost a full race on the softs, we had great tyre life and pace and think it would have worked.

"However, once I left the pits the pedal went completely to the floor, the rears locked and the car spun."

Hartley added he was "excited" for Honda's home race at Suzuka after the new engine specification produced what Tost described as a "big improvement" in performance in Friday's practice sessions.

shares
comments
Lewis Hamilton: I avoided crash with Sebastian Vettel in Russian GP

Previous article

Lewis Hamilton: I avoided crash with Sebastian Vettel in Russian GP

Next article

How Mercedes made a win feel like a defeat

How Mercedes made a win feel like a defeat
Load comments
Can Red Bull really win anywhere now it’s toppled a Mercedes F1 stronghold? Plus

Can Red Bull really win anywhere now it’s toppled a Mercedes F1 stronghold?

OPINION: Red Bull team boss Christian Horner reckoned Max Verstappen winning the French Grand Prix – an event where Mercedes had previously been dominant – would signal “we can beat them anywhere”. Here’s how that claim stacks up looking at the rest of the 2021 season

Formula 1
Jun 23, 2021
The IndyCar feature that Paul Ricard desperately needs in F1 Plus

The IndyCar feature that Paul Ricard desperately needs in F1

OPINION: The French Grand Prix offered a surprisingly interesting spectacle, despite the headache-inducing nature of the circuit. But IndyCar's Road America race offered far more in terms of action - and the increased jeopardy at the Elkhart Lake venue might be something Paul Ricard needs in future...

Formula 1
Jun 22, 2021
French Grand Prix Driver Ratings Plus

French Grand Prix Driver Ratings

The French GP was a weekend decided by tiny margins both at the front of the field, as Red Bull inflicted a comeback defeat on Mercedes, and in the battle for the minor points places. That's reflected in our driver ratings, where several drivers came close to a maximum score

Formula 1
Jun 21, 2021
How Red Bull took French GP "payback" on a day of Mercedes mistakes Plus

How Red Bull took French GP "payback" on a day of Mercedes mistakes

The French GP has been a stronghold for Mercedes since Paul Ricard's return to the calendar in 2018. But that all changed on Sunday, as a clever two-stop strategy guided Red Bull's Max Verstappen to make a race-winning pass on the penultimate lap - for once leaving Mercedes to experience the pain of late defeat it has so often inflicted on Red Bull

Formula 1
Jun 21, 2021
The new age of sponsorship facilitated by F1’s relevancy push Plus

The new age of sponsorship facilitated by F1’s relevancy push

The age of the high-profile title sponsor is over, says JONATHAN NOBLE, but Formula 1’s commitment to technological innovation is attracting high-tech partners

Formula 1
Jun 20, 2021
How Britain’s lost Ferrari star epitomised a bygone F1 era Plus

How Britain’s lost Ferrari star epitomised a bygone F1 era

The 1956 Italian Grand Prix was over for Juan Manuel Fangio, along with his hopes of winning the world championship – until his Ferrari team-mate (and title rival) voluntarily surrendered his own car so Fangio could continue. NIGEL ROEBUCK recalls Peter Collins, a remarkable sportsman

Formula 1
Jun 19, 2021
The 'surprise' Mercedes time that puts F1's victory fight back on a knife-edge in France Plus

The 'surprise' Mercedes time that puts F1's victory fight back on a knife-edge in France

Red Bull led the way after the first two practice sessions for the 2021 French Grand Prix, but only just ahead of Mercedes. There was all the usual practice skulduggery complicating the performance picture, but one aspect seen at the world champion squad gave it a ‘surprise’ lift, as it looks to leave its street-circuit struggles firmly in the past

Formula 1
Jun 18, 2021
How Ferrari got its F1 recovery plan working Plus

How Ferrari got its F1 recovery plan working

After its worst campaign in 40 years, the famous Italian team had to bounce back in 2021 – and it appears to be delivering. Although it concedes the pole positions in Monaco and Baku paint a somewhat misleading picture of its competitiveness, the team is heading into the 2022 rules revamp on much stronger footing to go for wins again

Formula 1
Jun 18, 2021