Petrov: Need reliability to judge R31

Vitaly Petrov says the Renault team needs more reliable testing mileage before it knows how competitive its R31 can be this season

Petrov: Need reliability to judge R31

The car has shown flashes of impressive speed with Nick Heidfeld setting the quickest time on one day at Jerez last week. It was often closest to Red Bull in the fast corner speed traps, but it has also been plagued by reliability troubles and has not completed as much running as the team had hoped.

Renault was sidelined several times at Jerez with KERS/braking-related troubles and lost time again on Friday at Barcelona due to another KERS problem.

"We've still not found the limit or something close to it," Petrov told AUTOSPORT. "I didn't do many laps. I had a lot of problems with brakes, KERS and leaks so I didn't run so much. For me it's very difficult to compare how it is. I didn't push.

"We still need to work on a lot of things. We had a lot of problems with the KERS and it was difficult to find where this problem was."

Petrov says he suffers from the same braking issues with the R31 as he did with its predecessor and identified that as the team's main area of concern.

"The braking is just locking too much at the rear, I think we just need to have the right shape map on this curve," he said. "That's why we need to test. We were struggling all last year with the brake stiffness and retardation, now we came back in the beginning with the same problem so we need to sort it out.

"As soon as you approach the brake, the rears start to lock. When it's rear locking, you lose performance from the tyres and when you have rear locking, after two or three corners the rear tyres are already too hot and there's no grip there. It's the main problem."

Renault is still yet to test its car over longer runs, with Petrov adding that the team's attempts so far have had to be aborted.

"We've tried already since the first test and the car is not working," he said. "So cross fingers, we hope we can do long runs here."

shares
comments
Extra test planned if Bahrain is cancelled

Previous article

Extra test planned if Bahrain is cancelled

Next article

Travel warning increases Bahrain doubts

Travel warning increases Bahrain doubts
Load comments
Why McLaren's expanding agenda will benefit its F1 resurgence Plus

Why McLaren's expanding agenda will benefit its F1 resurgence

In the 1960s and 1970s, McLaren juggled works entries in F1, sportscars and the Indy 500 while building cars for F3 and F2. Now it’s returning to its roots, expanding 
into IndyCars and Extreme E while continuing its F1 renaissance. There’s talk of Formula E and WEC entries too. But is this all too much, too soon? STUART CODLING talks to the man in charge

Formula 1
Oct 17, 2021
How Tsunoda plans to achieve his F1 potential Plus

How Tsunoda plans to achieve his F1 potential

Yuki Tsunoda arrived in grand prix racing amid a whirlwind of hype, which only increased after his first race impressed the biggest wigs in Formula 1. His road since has been rocky and crash-filled, and OLEG KARPOV asks why Red Bull maintains faith in a driver who admits he isn’t really that big a fan of F1?

Formula 1
Oct 15, 2021
The danger of reading too much into F1's clickbait radio messages Plus

The danger of reading too much into F1's clickbait radio messages

OPINION: After Lewis Hamilton responded to reports labelling him 'furious' with Mercedes following his heated exchanges over team radio during the Russian Grand Prix, it provided a snapshot on how Formula 1 broadcasting radio snippets can both illuminate and misrepresent the true situation

Formula 1
Oct 14, 2021
Why F1’s approach to pole winners with grid penalties undermines drivers Plus

Why F1’s approach to pole winners with grid penalties undermines drivers

OPINION: Valtteri Bottas is credited with pole position for the 2021 Turkish Grand Prix, despite being beaten in qualifying. This is another example of Formula 1 and the FIA scoring an own goal by forgetting what makes motorsport magic, with the Istanbul race winner also a victim of this in the championship’s recent history

Formula 1
Oct 13, 2021
Turkish Grand Prix Driver Ratings Plus

Turkish Grand Prix Driver Ratings

On a day that the number two Mercedes enjoyed a rare day in the sun, the Turkish Grand Prix produced several standout drives - not least from a driver who has hit a purple patch of late

Formula 1
Oct 11, 2021
The hidden factors that thwarted Hamilton's bid for shock Turkish GP glory Plus

The hidden factors that thwarted Hamilton's bid for shock Turkish GP glory

Starting 11th after his engine change grid penalty, Lewis Hamilton faced a tough task to repeat his Turkish Grand Prix heroics of 2020 - despite making strong early progress in the wet. Instead, his Mercedes team-mate Valtteri Bottas broke through for a first win of the year to mitigate Max Verstappen re-taking the points lead

Formula 1
Oct 11, 2021
How pitstops evolved into an F1 art form Plus

How pitstops evolved into an F1 art form

A Formula 1 pitstop is a rapid-fire blend of high technology and human performance. PAT SYMONDS describes how the science of margin gains makes stops so quick

Formula 1
Oct 10, 2021
Why Mercedes' Istanbul edge is both stronger and weaker than it seems Plus

Why Mercedes' Istanbul edge is both stronger and weaker than it seems

Mercedes and Lewis Hamilton dominated the opening day of action for the 2021 Turkish Grand Prix, on the Istanbul circuit’s much improved track surface. But the Black Arrows squad’s position isn’t quite what it seems. Here’s why

Formula 1
Oct 8, 2021