2014 Winter Testing - General

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Lycoming
Lycoming
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Re: Winter Testing 2013/14

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It is possible that it's just a bad tire that slipped through quality control. I heard that they once handed Mclaren a tire that was 3/8ths of an inch off round, which isn't confidence inspiring.

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adrianjordan
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Re: Winter Testing 2013/14

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I heard that a man was seen leaving the track perimeter carrying a high powered sniper rifle and speaking with a French accent... :-p

Seriously though, what could theoretically cause a tyre to fail on a straight? Load due to downforce or what?
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Holm86
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Re: Winter Testing 2013/14

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adrianjordan wrote:I heard that a man was seen leaving the track perimeter carrying a high powered sniper rifle and speaking with a French accent... :-p

Seriously though, what could theoretically cause a tyre to fail on a straight? Load due to downforce or what?
Centrifugal force. If the tire already has a weak spot.

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Shrieker
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Re: Winter Testing 2013/14

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Lycoming wrote:It is possible that it's just a bad tire that slipped through quality control. I heard that they once handed Mclaren a tire that was 3/8ths of an inch off round, which isn't confidence inspiring.
Too many "bad tires" have slipped thru in the last 12 months or so. Pirelli should've been shown the door.

Quality control is part of technology and they clearly lack it.
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Gridlock
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Re: Winter Testing 2013/14

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Maybe I'm biased...

Image

...but I don't think it's acceptable for their tyres to be failing now. If the 2014 cars are such a challenge for the rubber and 2013 was a year where Pirelli lost a lot of credibility, having a failure now just screams "we don't know how serious this is" or "you'll never be able to trust us". Deleting the tweet (the fact the tweet happened suggests a lot about how Nico feels about this) and calling it a prototype isn't sufficient IMO.
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xDama
xDama
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Re: Winter Testing 2013/14

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Shrieker wrote:
Lycoming wrote:It is possible that it's just a bad tire that slipped through quality control. I heard that they once handed Mclaren a tire that was 3/8ths of an inch off round, which isn't confidence inspiring.
Quality control is part of technology and they clearly lack it.
Ofcourse they lack quality control, because the need more relevant testing opportunities!
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FoxHound
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Re: Winter Testing 2013/14

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Some people proclaiming Pirelli technology to be insufficient for F1, or that Pirelli are below the required standard because of a blow out need to think more before posting.

The reality of the situation here is we should be grateful for Pirelli involvement. They stepped into the Bridgestone breach where no other wanted to.
Various reasons behind others not wanting to be involved.
Primarily, creating a tyre that "spices up" the show. And tyres that degrades at the drop of a right boot on an accelerator pedal.
All of these requirements need to be met in a laboratory. Testing in season is not allowed, so if you get it wrong you are screwed.

Any wonder why Michelin, Goodyear and Hankook weren't beating down the F1 door?

And anyone mentioning Bridgestone as an example for Pirelli to follow need to once again think and research before posting. Same applies to Michelin.
These failures happened with testing being prevalent throughout the year.
http://www.autosport.com/news/report.php/id/61860
Image

http://www.motorsport.com/f1/news/bridg ... e-failure/
http://www.crash.net/f1/news/34336/1/br ... lures.html

The tyres were not designed to degrade over a short period either.

The test was appropriated for the lab results to be verified. Because in the last 4 years, it's been closed and took failures to be able to do something to change the rules.
I get it's trendy to kick Pirelli these days, but at least use a modicum of intellect in understanding the conditions Pirelli are operating under are very different from what went before.
JET set

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FoxHound
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Re: Winter Testing 2013/14

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dren wrote:Better now than in the races next year. That's why they test.

I'm glad Nico isn't hurt.

Agree in your sentiment.
Im sure Rosberg has a replacement pair of overall for the brown stained silver, correct? 8)

As you pertian, its testing. Lets all calm down for a nice dose of reality check to anodize the negativity.
I'm off to Barcelona for some reason (girlfriend wants a Spanish getaway) in the early part of 2014. If them dastardly Pirelli tyres blowout on the 4th day of testing I'll still defend them.
The reason is we have more torquey motors pushing more power onto the tyre tread.

We need more testing to eradicate certain parameters which are prevalent when you deal with rubber.
I spoke to an engineer from prodrive recently. And he suggests tyres are a black art for very good reason.

"When fitted to a car, they become a living breathing entity"

A perfect tyre may perform perfectly until it fails due to an unforseen or unprepared for event.
In that scope, Pirelli are doing as good a job as any of its predecessor's.
And without the acclaim.
JET set

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Pierce89
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Re: Winter Testing 2013/14

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I've seen the hardest compound available to the team I worked for explode for no apparent reason. This was a tire that had been raced all over the US for years. Tires in general are IMHO the single hardest component on a car to give meaningful predictions about, even after extensive testing. I don't believe Pirelli neglected their job, they just got caught out. It happens, even in F1.
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Shrieker
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Re: Winter Testing 2013/14

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FoxHound wrote:
I get it's trendy to kick Pirelli these days, but at least use a modicum of intellect in understanding the conditions Pirelli are operating under are very different from what went before.
Complete and utter BS. Pirelli knew about the tire troubles as early as Bahrain GP which was held in April. They elected to lie to cover it up by saying it was debris damage. They had more than 2 full months before the British GP where the tires went bust like popcorn. And they had a full 3 day test with Mercedes one and a half months before the British GP. They had also done a test with Ferrari's 2011 car ! It's so convenient to forget these tests isn't it.

Only then they decided to 'modify' the tyres for the German round. Reason it took so long ? "There wasn't an understanding between the teams". LoL ok. If such a fXXX up is going to damage my brand image irreversibly (which it has), and put the drivers and spectators at risk then screw the teams. They were first and foremost morally obliged to ensure the safety of the people involved. Even after a complete rework was done for the Hungarian round, the troubles were far from over as evidenced later in the season. Then, the supposedly more robust tires go bust on a 2013 car.

All of this is systematic. Which tells me Pirelli don't have a clue.You might have one or two failures here and there over the season and they could be explained as exceptions. Not the case here. Also, it's very important how these failures occur. You post a pic of a punctured/delaminated Bridgestone tire, but a static image doesn't even tell half the story. Yes i can recall more than a couple of tire deflations&failures in the Bridgestone era, but I can't really remember tire explosions à la Pirelli.
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Lycoming
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Re: Winter Testing 2013/14

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Shrieker wrote:Complete and utter BS. Pirelli knew about the tire troubles as early as Bahrain GP which was held in April. They elected to lie to cover it up by saying it was debris damage. They had more than 2 full months before the British GP where the tires went bust like popcorn. And they had a full 3 day test with Mercedes one and a half months before the British GP. They had also done a test with Ferrari's 2011 car ! It's so convenient to forget these tests isn't it.
You make it sound like 2 months is a long time...

Manoah2u
Manoah2u
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Re: Winter Testing 2013/14

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actually, it is. if i wouldn't do my job as i'm supposed to for 2 full months, i'm out the window. i can't imagine any business that has zero progress in 2 months time. Mind you, they may do lab work and research indeed. 2 full months of research with real life analyzed data is plenty. If you just do one little test in a lab once a month sure, then 2 months window is short.

but in Formula 1, 2 months is a LIFETIME. The amount of research, development and applying in a window of 2 months is
gigantic in the world that is Formula 1, and means the difference between night and day, the difference between having a winning car or a fumbling car. Championship or loss.

It's not like the rules and world of F1 don't apply to pirelli. Who are they, really? Like they are King and they grant F1 a favor by occasionally giving some work? Have we forgotten all the testing Pirelli DID do the past years? Remember alguersuari's runs with pirelli? All i've seen is pirelli boasting and acting like they're the bomb, yet they show different when actually having to do their job. Paul Hembery's face during the Silverstone panic and the repeat during what was it, Korea, when Alonso nearly had 'a Massa' headbang with a tire?

And now we have a 320kmph Rosberg with a tire flying around?

I can't grasp to understand how any of this is acceptable, it's life threatening and do we really need to have a [fatal] injury before we change opinion?

Pirelli acts like its everybody but their fault, and that's where the problem lies. 'The teams' don't put the tires the right way on the car. REALLY? you fail to admit you construct tires that have different 'wall' compositions, you fail to admit running steel-belted tires is a HUGE mistake, and put it on the 'TEAMS'? the 'Teams' run wrong pressure?

That's like a new engine manufacturer comes in with the same specifications as the 13 renault, ferrari and mercs, but when running them full throttle as they should, they explode and fail and they say it's the 'teams' fault not theirs???

and then, also blaming it on the FIA?? 'the fia' restricts us. the 'fia' doesn't give us enough testing. 'the teams' dont' cooperate.

sure the teams wont cooporate when you make tires that are potentially driver killers. you think rosberg is gonna run 320kmph when he's warned the tires are on the edge of failing?

If pirelli has correctly tested the tires they provide for the testing, they should have a 'window' on where they are supposedly gonna fail. I can NOT accept the idea that merc and rosberg would have been AWARE that they were running outside of this 'window', with the risk of having a tire blowout. NO DRIVER, NOT ANYBODY, would drive a F1 car 320kmph
KNOWING the tyre is on the verge of exploding. he'd keep his foot off the throttle.
NO driver wants to DIE by having a tire failure at 320kmph, especially with the pirelli history in mind.

Somethings HUGELY wrong in pirelli's department. Whether that is real life versus computer/lab results, i don't know, but they're NOT doing their job CORRECTLY.

it is absolutely unacceptable that the tire fails. and don't talk about 'debris', the track has been run for somewhile before that happened, and even IF there would be debris, a tire SHOULD not be a balloon ready to POP when the lightest bolt or scrap hits it.

Imagine riding on the interstate and your tire pops out of your car because it hit remains of a windshield wiper rubber, or a little metal nail. imagine what happens when riding 120kmph and your tire is GONE.
we're not talking about a FLAT tire. we're not talking about a tire losing pressure. we're talking about tires completely delaminating and disconnecting from the wheel. the entire wall coming off. thats UNACCEPTABLE.

i still can't understand how on earth people still defend this lousy company with lousy business profile and lousy PR actions.
they're not at ALL up to the F1 standard and should be given the boot last year.

I'm without doubt we will see a repeat of last year and this test. And i'm sure pirelli will put it on the teams and new torque figures of the v6 engines.
I hope with all my heart they'll boycott and dump pirelli soon, before a driver gets the worst of it.
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FoxHound
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Re: Winter Testing 2013/14

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Shrieker wrote:Complete and utter BS.
You ought to read it again if you think so, as it contains some useful links to verify my point from some decent sources.
But of course, I wouldn't want to spoil your fun by letting a few facts get in the way of the mobile vulgus.
Shrieker wrote:Pirelli knew about the tire troubles as early as Bahrain GP which was held in April. They elected to lie to cover it up by saying it was debris damage.
Teams where swapping tyres and using them in a way which was not tested. Mercedes where one of these teams and they also ran to the limit on camber.
Did Pirelli advise this to them? No.
In some cases it was done without prior knowledge or notification.
http://www.autosport.com/news/report.php/id/108545
No lies where told. Pirelli have been very forthright and honest in saying they should never have allowed the tyre swapping to occur.
Shrieker wrote:They had more than 2 full months before the British GP where the tires went bust like popcorn. And they had a full 3 day test with Mercedes one and a half months before the British GP. They had also done a test with Ferrari's 2011 car ! It's so convenient to forget these tests isn't it.
It seems convenient to sweep under the carpet the the whole scenario of why they where testing? 2014 tyres being the main priority.
Pirelli motorsport director Paul Hembery has previously said the tyre compounds tested are not going to be used in the 2013 season."The focus was on 2014,"
And here, conveniently, is the link. http://sports.ndtv.com/formula-1/news/2 ... tyre-tests
Shrieker wrote:Only then they decided to 'modify' the tyres for the German round. Reason it took so long ? "There wasn't an understanding between the teams". LoL ok. If such a fXXX up is going to damage my brand image irreversibly (which it has), and put the drivers and spectators at risk then screw the teams. They were first and foremost morally obliged to ensure the safety of the people involved. Even after a complete rework was done for the Hungarian round, the troubles were far from over as evidenced later in the season. Then, the supposedly more robust tires go bust on a 2013 car.

You suggesting that Pirelli are solely morally responsible and the teams and the FIA are absolved of any moral obligation?
Then why did teams persist in tyre swapping when they themselves knew it to be a potentially hazardous action even after the incidents?
This here is the point.

I will reiterate to you once again that Pirelli are in a situation that no other tyre manufacturer has had to endure before.
Their position is one of having to provide a tyre that disintegrates to the point where it is no longer a usable product in a very short period of time. It is almost counter intuitive to produce such tyres, but the FIA demand it.
It was part of the tender process in 2009 when the FIA where searching for a supplier.
There was pretty much little or no interest from anyone other than Pirelli.

On top of this, they are limited to testing their products on current machines for an entire season with a 1 month spell before the season starts.
This has been ratified only very recently.

Even after this, they can use a 2 year old car which is in no way a credible reference point for current machines due to various rule changes/bans and increases in performance(EBD/F ducts/FRICS etc etc).
How on earth do you propose a supplier to keep up with this kind of change when no in season testing with current cars is permissible?
It's a constant moving target that requires constant and up to date information if the product the FIA wants is to be as accurate and safe as possible.
If you can at least understand the difference here, in that Pirelli are in this situation simply because the rules and conditions placed on them are unrealistic.
Shrieker wrote:All of this is systematic. Which tells me Pirelli don't have a clue.You might have one or two failures here and there over the season and they could be explained as exceptions. Not the case here
I agree it is systematic. And the reason for it is nothing to do with Pirelli and everything to do with the conditions imposed on them by the FIA.
A systematic failing you can say.
Shrieker wrote: You post a pic of a punctured/delaminated Bridgestone tire, but a static image doesn't even tell half the story. Yes i can recall more than a couple of tire deflations&failures in the Bridgestone era, but I can't really remember tire explosions à la Pirelli.
The picture was from the link I posted, had you the inclination to read it.
The story is clear from the outset regarding this mishap. It was caused by phenomenon known as "chunking".
Also interesting is that ...
the Japanese tyre manufacturer remains unsure of the exact circumstances that led to the failure
a full 2 days after the incident.
This on top of the fact they had unlimited testing AND no stipulations from the FIA to create a fast degrading tyre.

But again, why let some facts get in the way of spoiling your lynching of Pirelli.
Here is something of a clue...
Pirelli has been selected as the single tyre supplier for the FIA Formula One World Championship for a period of three years, commencing in 2011. The sole supplier will undertake to strictly respect the sporting and technical regulations implemented by the FIA.
JET set

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hollus
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Re: Winter Testing 2013/14

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Manoah2u wrote:...If pirelli has correctly tested the tires they provide for the testing...
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Shrieker
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Re: Winter Testing 2013/14

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@FoxHound,

I understand what you accuse me of failing to understand. There's no one way to make a fast degrading tire. You can have the sidewalls/carcass bulletproof but the upper surface fast degrading. It could cost twice as much though. Also, it was Pirelli's responsibility to make sure the teams didn't swap tires side to side when their product wasn't up to that particular task. But they only prohibited it after disaster struck. Again, they had no clue about the product they themselves designed and manufactured.

I'm wondering whether the cost has anything to do with all this. I'm inclined to say 'probably yes'.
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