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Steve AdministratorStaff Member Articles Moderator
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ScottinBend Space CowboySupporting Member
It was definitely smoke coming off of the tire........either something got caught up on the body work or the body work itself was a bit loose and cut the tire down.
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Steve AdministratorStaff Member Articles Moderator
Pirelli have already decided tire construction wasn't to blame, looking for an external cause.
Pirelli: No obvious source for “cut†in Rosberg’s tyre (motorsport.com)
There was a situation like this a couple years ago (?) and I think I remember they did a track search and decided there was some curbing likely to blame. Can't remember anything specific, though. -
Crashton Club Coordinator
Wow what a loading that tire is taking there.
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F1 tyres are incredibly light, particularly the sidewalls, so that wrinkling deformation isn't that surprising. I was going to say they are 'high' aspect ratio, though the actual sizes are 270/55 R13 front and 325/45 R13 rear, so not exactly 70-series....
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Crashton Club Coordinator
I thought the race was entertaining, some good fights back in the field. The race was for 3rd place, I feel sorry for Vettel & happy for Rogro all at the same time.
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Steve AdministratorStaff Member Articles Moderator
I hate to say it but Pirelli seem to be digging pretty deep trying to think of ways to deflect attention.
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ScottinBend Space CowboySupporting Member
The tires also run about 18psi........... and under the compression at Eau Rouge I can see how that could happen, and also see how it could have affected both of the cars that had tire failures.
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Crashton Club Coordinator
Ferrari took a gamble trying to run Vettel to the end with one pit stop. Had it worked we'd have said brilliant strategy. Now we say what were they thinking, me included.
The fact that both Rosberg & Vettel had right rear catastrophic failures is quite interesting. I think running that many laps may have contributed to Vettel's failure, but what about Rosberg's? -
Steve AdministratorStaff Member Articles Moderator
And, no surprise, no one wants to take credit.
Furious Vettel slams Pirelli after blowout (racer.com)
Pirelli blames Ferrari for risking one-stop strategy (grandprixtimes.com)
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mrntd Well-Known MemberSupporting Member
- Sep 30, 2011
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My favorite track and a boring race after the first few laps.
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Steve AdministratorStaff Member Articles Moderator
Arrivabene pointed out that they (Ferrari) have a Pirelli engineer with the team at the track all the time who advises re strategy and constantly monitors conditions while the cars are running. It's that engineer's job to understand the tires and what they're doing and Arrivabene claims there was no indication from him that any of Vettel's tires were nearing wear limits.
Others say they never worry about any sort of catastrophic issue caused by extended use because the tires always hit the performance cliff first. For example, Lotus' Alan Permane:
I'm not taking sides against Pirelli, teams take risks with geometry, atypical failures occasionally happen, etc, etc, just saying it looks like a bit more investigation is warranted. -
Crashton Club Coordinator
Not so sure about Vettel's tires not losing their performance. Seemed to me Rogro was reeling him in. Not sure he could have passed Vettel, but now we will never know.
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It definitely was a bummer that the tire failed.
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mrntd Well-Known MemberSupporting Member
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Pirelli has found cut on tires from other cars. They claim it's from debris on the track. You would think if there was that much debris the they would have had a yellow to clean it up.
I think it's an Indy Michelin thing. They didn't figure right on the loads from the cornering, compression and torque. -
Crashton Club Coordinator
The tires as they are now contribute to the spring rate. Anything can be done given enough money & F1 teams sure know how to spend it. Pirelli would have to spend a fortune too. I don't see a benefit to a change like that.
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Steve AdministratorStaff Member Articles Moderator
To me it's a cost-benefit ratio issue.
If cost wasn't an issue then I think they definitely should switch. After the difficulty in engineering an entirely new suspension, seems to me everyone involved would much prefer the resulting ability to adjust spring rates and fine tune other suspension settings in much greater detail and much more predictable ways rather than having to try to do so while compensating for the variable effects currently provided by those big, squishy tires.
But cost is a huge issue and not changing the wheels/tires is free compared to the huge expense of engineering new tires and suspensions, not to mention the money that would be spent to deal with domino effects like aero.
While I think they'd all be happier if the change could be made without expense, it can't. Might not be a good time for such a change. On the other hand, the same could probably be said for all the other changes they're planning for 2017 (or so), higher revving engines, ground effects, wider tires, etc, etc. -
mrntd Well-Known MemberSupporting Member
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I like these comments the best:
"In other words: this is almost certainly Bernie’s fault. "
"Its always Bernie’s fault!" -
Minidave Well-Known MemberLifetime Supporter
You all are missing the bigger picture - Vettel had to do a one stop race in order just to finish third!
Something wrong there.....and he was the fastest of the racers who weren't Mercedes. -
Crashton Club Coordinator
I think Rogro in his Lotus was faster than Seb. He did 2 stops to Seb's one & darned near caught him.
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