Jul 6, 2013, 7:00 AM EST
Pirelli’s motorsport director Paul Hembery has admitted that the Italian tire supplier underestimated the effect of allowing teams to undertake ‘tire swapping’ at the last race, believing that this was the biggest factor in causing the multiple failures at the British Grand Prix.
Lewis Hamilton, Felipe Massa, Jean-Eric Vergne, Sergio Perez and Esteban Gutierrez all suffered from blowouts during the race at Silverstone, triggering Pirelli to make changes for this weekend’s race. Hembery has admitted that it was a mistake by Pirelli which caused the madness to ensue.
“Just to recap, at Silverstone we’d underestimated the impact of swapping the tires,” Hembery said in the Friday press conference. “The cars were two, maybe three seconds quicker this year. Whilst we’d allowed the teams to do that, we’d underestimated the impact on the tire.”
Teams have been permitted to switch which side of the car they run the Pirelli tires on – i.e. using the front-left tire on the front-right of the car – and it has aided tire management, reducing wear in places. However, Hembery explained how this has caused a weakness in the tire which was evident at Silverstone.
“When you swap them around that creates a point with the metallic belt that we have on it, on the left hand side, the camber side, and that created the weakness.We got that wrong and we needed to get it right going forward.”
As a result, Pirelli have changed the structure of the tire, using a kevlar belt in the tire before reverting to the 2012 constructions for the Hungarian Grand Prix at the end of this month. The process of tire swapping has been banned for this weekend by the FIA following guidance from Pirelli.
Nov 25, 2014, 8:07 PM EST
A post-season exit survey provides some very interesting fan data on NASCAR’s latest version of its post-season format.
Nov 25, 2014, 7:00 PM EST
The outgoing crew chief for Dale Earnhardt Jr. also talks about his successor needing to make his own mark.
Nov 25, 2014, 5:45 PM EST
The Delaware family court hearing is a separate matter from the ongoing police investigation into allegations of assault against Busch by his ex-girlfriend.
Nov 25, 2014, 5:15 PM EST
Brian Scott gets a new crew chief for 2015’s XFINITY campaign.
Nov 25, 2014, 4:44 PM EST
It may be Thanksgiving week but NASCAR AMERICA is still on tonight at 5 p.m. ET.
Nov 25, 2014, 4:30 PM EST
The ex-Caterham pilot runs 95 laps in the Sauber C33 at Yas Marina Circuit.
Jay Mohr back to host this year’s NASCAR Sprint Cup Awards; Aloe Blacc, Lady Antebellum among performers
Nov 25, 2014, 3:48 PM EST
A star-studded affair to come for NASCAR in Las Vegas.
Nov 25, 2014, 3:00 PM EST
Palmer logs only 37 laps for Force India in Abu Dhabi, but places fourth on the time sheets.
Nov 25, 2014, 2:30 PM EST
Caterham not only stays for test, but banks 100-plus laps on Tuesday in Abu Dhabi.
Nov 25, 2014, 2:00 PM EST
Carlos Sainz Jr. has a good day with Red Bull, as he stakes claim for Toro Rosso seat in 2015.
Nov 25, 2014, 1:30 PM EST
Rosberg pounds out 114 laps – the most of any driver – in Day 1 of testing in Abu Dhabi.
Nov 25, 2014, 1:00 PM EST
IndyCar’s available pool of talent, as always, is larger than the number of remaining seats.
Nov 25, 2014, 12:30 PM EST
The Ford squad enters this week’s World RX finale down four points in their fight for the team championship.
Nov 25, 2014, 12:00 PM EST
McLaren-Honda gets out, with ideally more to come on Wednesday.
Nov 25, 2014, 11:36 AM EST
One Mercedes team on top, one former Mercedes team gets install laps only.
Nov 25, 2014, 11:00 AM EST
Go inside the numbers of this year’s final F1 points standings.
Nov 25, 2014, 10:00 AM EST
GP3 champ to have first F1 run.
Nov 25, 2014, 9:40 AM EST
Ex-Lotus reserve will have his first IndyCar test in December.
Nov 24, 2014, 8:03 PM EST
The two drivers answer the call of the open road.
Nov 24, 2014, 6:26 PM EST
The future NASCAR on NBC analyst talks about how Rick Hendrick and his partnerships with Jeff Gordon and Dale Earnhardt Jr. have impacted his life.
Video from NASCAR America
- Bottas leads as McLaren-Honda delayed on first day of Abu Dhabi test 3
- Steve Letarte reflects on Hendrick Motorsports career in “exit interview” (VIDEO) 3
- Weekend wrap: Lewis Hamilton back on top of the F1 mountain 4
- Maurizio Arrivabene replaces Marco Mattiacci as Ferrari team principal 4
- Abu Dhabi GP Paddock Notebook – Sunday 0
- Hamilton calls second title victory “the greatest day of my life” 3
- Hamilton clinches second F1 world title by winning Abu Dhabi GP 11