F1 » Teams told how to use Pirellis


Pirelli has used the FIA to instruct teams how to run their tyres at the Nurburging this weekend.

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Fernandabulous

July 05, 2013 12:29 PM

after all the carry on, Pirelli saying they 'shoudnt have allowed' teams to put the tyres on the wrong way round is a little poor. if they had no data for the tyres to be run that way they allowed the tyres to be run outside of the suggested parameters and would have been found to be resppnsible had anything serious happened

107SS2009

July 05, 2013 5:25 PM

“Teams told how to use Pirellis (the tyres)” this is not correct, not what the teams have been told, the teams has been ordered to use the tyres according to and within their specifications, namely, minimum tyre pressure, maximum camber and their mounting position (left/right).
Teams goes out/over/under the recommended specifications of the tyres if they find an advantage.
The advantage is in getting the tyre up to best operating temperatures as quickly as possible this is the compromise some teams goes to between qualifying and the race pace.

107SS2009

July 05, 2013 5:49 PM

Ghog, why find it difficult to believe that a team will fit (directional) tyres on the wrong side? If teams finds out that doing that will give them an advantage they will compromise, the problem is that (1) safety has been compromised at least at some tracks (2) because of the safety aspect the (all important commercially) manipulations of moving the goal posts during a season has been achieved.
Remember that Pirelli is still declaring that the tyres were never a risk to the drivers and they were up to FIA specifications, so why the change then? Why not order the teams to use the tyres within their specifications?
Now that the primary objective (the change) has been forced on the FIA and some teams, they still finds it necessary to enforce the use of the tyres to within their specifications (Kevlar belt and all).

ghog

July 05, 2013 5:54 PM
Last Edited 417 days ago

107SS2009

Still seems to be a massive risk to me.

We would never dream of fitting directional tyres back to front to our road cars.

From a Technical point of view it seems a bit of a dodgy decision!

Amigo

July 05, 2013 6:11 PM

I believe this is a first time in F1 history Tire supplier has instruction to Teams how to use and not to use for tires.
It's very interesting to wait and see Tires situation in German GP.

107SS2009

July 05, 2013 7:34 PM

Ghog, yes as it turned out it was a massive risk.
It is not front to back or back to front but right to left or left to right.
Remember that, fronts are 305-355mm width and rears are 365-380mm width.
If interested to understand the directional design of tyre and the problems the teams got upon themselves by abusing the tyre specification please visit Crash Net of Tuesday page (Pirelli confirms tyre changes) 27 comments and read posts 24, 25 and 26.

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