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Effect of Pirelli's tyre changes


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#1 Wuzak

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Posted 17 May 2013 - 08:38

From what I understand, from Canada Pirelli will revert to last year's tyre construction, but will use this year's (ie softer) compounds.

How much will the tyre change affect the cars. Will much retuning/reworking need to be done?

Any possibility that the order will change?

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#2 MatsNorway

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Posted 17 May 2013 - 12:56

Any chance will have some effect for someone.

One should only alter rules pre season start.

Perhaps this chance will favor car being gentle on tires. As the last years tires was slightly narrower.

#3 TC3000

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Posted 25 May 2013 - 00:00

maybe not directly the answer the OP was looking for, but some interesting aspects are explained here:

Unseen part … the windtunnel tires

#4 Wuzak

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Posted 25 May 2013 - 03:45

maybe not directly the answer the OP was looking for, but some interesting aspects are explained here:

Unseen part … the windtunnel tires


The aerodynamics of the tyres is one of the things that could have made an impact on the competitive order. But it seems all that is moot, since the FIA have told Pirelli they can only make changes in the name of safety (ie to prevent delaminations). So minimal structural changes and no compound changes.

#5 MatsNorway

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Posted 25 May 2013 - 12:55

But surely a narrower tire will behave differently. And affect the wear.

Edited by MatsNorway, 25 May 2013 - 12:58.


#6 Wuzak

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Posted 25 May 2013 - 13:14

But surely a narrower tire will behave differently. And affect the wear.


Narrower tyre?

#7 Tony Matthews

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Posted 25 May 2013 - 14:03

Unseen part … the windtunnel tires

Thanks - fascinating.

#8 MatsNorway

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Posted 25 May 2013 - 17:36

http://www.pirelli.c...tyre-range.html

puh. i Thought i was imaginating things.

"The new structures have been designed with a different philosophy and new materials that increase the footprint of the tyre, allowing more rubber to be in contact with the track and leading to better performance"

Edited by MatsNorway, 25 May 2013 - 17:36.


#9 RyanDixon

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Posted 29 May 2013 - 08:07

From what I have heard about the "new" tyres that are coming in is that they have a stronger sidewall structure. This could be done by changing the compound structure (unlikely) or the belt so to speak which the tyre is bound too. The tyres this year are different too last years because at higher speed, the airflow around it is affected more so than previous years. This could have a knock on effect to the teams given that if the tyres change, so will this so front wings, sidepods and even rear ends could need to be changed but given the FIA have stood up to this tyre nonsense the changes will only be small.

#10 Lee Nicolle

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Posted 29 May 2013 - 08:44

I think maybe they protest too much. The aero guys that is. A tyre will 'wind up' on occasion, flex across the rims, actually they do that quite a lot. The slo mo shots can be fascinating, and probably illuminating for the tyre people too. And it will probably grow a bit at very high speed.
Though making a stiffer tyre with less frontal area could be good. It is the amount of rubber on the road [and not laying on the track edge] that gives grip. The widest tyre often does not put useable rubber on the road. Though in F1 one would have thought they largely had that sorted out by now as they have used similar size tyres for some years.