Pirelli Calls for More Testing
ESPN Staff. May 14, 2013
The Pirelli tyres will be changed in time for the Canadian Grand Prix, leaving only Monaco on the current compounds © Sutton Images
Pirelli's motorsport director Paul Hembery has called for more testing in warmer climates as he explains the reasoning behind the tyre compound changes.
After a Spanish Grand Prix won with four stops, Pirelli is revising its tyres in time for the Canadian Grand Prix. In a Pirelli press release, Hembery went in to detail as to the reasons for the changes, but also said the situation could have been prevented with longer and more relevant testing in pre-season.
"Our aim is to provide the teams with a new range which mixes the stability of the 2012 tyres and the performance of the current ones," he said. "As a company, we have always moved quickly to make improvements where we see them to be necessary. After evaluating data from the first few races this year, we've decided to introduce a further evolution as it became clear at the Spanish Grand Prix that the number of pit stops was too high. The Spanish Grand Prix was won with four pit stops, which has only happened once before in our history. These changes will also mean that the tyres are not worked quite as hard, reducing the number of pit stops.
"With limited testing time, it's clear now that our original 2013 tyre range was probably too performance-orientated for the current regulations. However, having identified this issue, we're determined to rapidly resolve it. It's worth underlining that the current regulations for winter tests limit the opportunity to test the tyres under the same conditions as the race season because of the lower temperature and restricted time. The Teams are of the same opinion as we are in wanting longer testing times and different locations for the next tests. We developed the 2013 tyres on the basis of careful simulations that were, however, not sufficient, taking into account the improved speed of cars (up to 3 seconds per lap).
"We've also taken this step to avoid the delaminations that were caused by track debris. It's important to point out that these delaminations, which occur when the tread comes off, do not compromise the safety of the tyres as the core structure of the tyre is not affected in any way, helping drivers to complete the lap and to change the damaged tyres safely. These delaminations were due to damage from debris that overheated the tread. We'd like to thank all the teams for their continued and extremely valued support as we worked with them to identify the correct compromise between the pure speed that makes us the world leader in the Ultra High Performance sector and a global spectacle that is easy for Formula One fans to follow."
Pirelli tire changes to be in place for Formula One Canadian Grand Prix
By: Adam Cooper Auto Week, on May 14, 2013
LAT PHOTOGRAPHIC - Pirelli promises a new Formula One tire in time for the Canadian Grand Prix in Montreal on June 9.
Pirelli on Tuesday confirmed that it will change the construction of its tires in time for the Canadian Grand Prix in Montreal, as a response to the general criticism of the way racing has unfolded in Formula One this year.
Pirelli motorsports boss Paul Hembery said after the Spanish Grand Prix over the weekend that changes could come for the British GP at Silverstone on June 30. However, the schedule has been moved forward by one race, and Pirelli now says it will have a new tire for the June 9 Canadian GP.
“Our aim is to provide the teams with a new range which mixes the stability of the 2012 tires and the performance of the current ones,” said Hembery. “As a company, we have always moved quickly to make improvements where we see them to be necessary.
“After evaluating data from the first few races this year, we've decided to introduce a further evolution as it became clear at the Spanish Grand Prix that the number of pit stops was too high. The Spanish Grand Prix was won with four pit stops, which has only happened once before in our history. These changes will also mean that the tires are not worked quite as hard, reducing the number of pit stops.”
The previous four-stop win on Pirellis occurred in Turkey in 2011. The Spanish Grand Prix was also won on four stops that year.
“With limited testing time, it's clear now that our original 2013 tire range was probably too performance-orientated for the current regulations. However, having identified this issue, we're determined to rapidly resolve it. It's worth underlining that the current regulations for winter tests limit the opportunity to test the tires under the same conditions as the race season because of the lower temperature and restricted time.
“The teams are of the same opinion as we are in wanting longer testing times and different locations for the next tests. We developed the 2013 tires on the basis of careful simulations that were, however, not sufficient, taking into account the improved speed of cars [up to three seconds per lap].”
Hembery confirmed that Pirelli had also stepped in to reduce the instances of delaminations caused by track debris. He repeated the assertion he made last weekend that Pirelli would rather see a tire come apart than have it delaminate -- even though the latter case could allow a driver to get safely back to the pits.
“It's important to point out that these delaminations, which occur when the tread comes off, do not compromise the safety of the tires as the core structure of the tire is not affected in any way, helping drivers to complete the lap and to change the damaged tires safely. These delaminations were due to damage from debris that overheated the tread.”
PREVIOUS RELATED REPORT ON THE TYRES:
Pirelli vows to change its tires before Formula One British Grand Prix
By: Adam Cooper on May 12, 2013
LAT PHOTOGRAPHIC - Tire degradation was an issue in the Formula One Spanish Grand Prix on Sunday.
Pirelli Formula One boss Paul Hembery says that the Italian company will probably revise its tires in time for the British GP at the end of June.
Pirelli had already changed the hard compound for the F1 Spanish Grand Prix. However, Hembery conceded that the four-stop strategies employed by most of the front runners in Barcelona -- including winner Fernando Alonso -- represented one stop too many.
“Strategy was again at the forefront of the Spanish Grand Prix, which as usual was very demanding on the tires because of the unique characteristics of this circuit,” he said.
“This is why we saw high levels of degradation, which should not be seen again to this extent for the rest of the year. Our aim is to have between two and three stops at every race, so it’s clear that four is too many. In fact, it’s only happened once before, in Turkey during our first year in the sport. We’ll be looking to make some changes, in time for Silverstone, to make sure that we maintain our target and solve any issues rapidly.”
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