British Grand Prix 2013, Silverstone - Race 8/19

MarcLister · 4 Jul 2013 at 23:59

Westyfield2 said:
Given that the tyres aren't treaded, what actually is the difference between left and right?

Sidewall construction isn't it? So the outer edge is designed to take a different level of energy than the inside edge. So when the tires get swapped and used on the wrong side of the car, the tyre gets loaded with energy in a way it isn't designed for and the tyre is more likely to 'fail'.

Glaucus · 4 Jul 2013 at 23:59

MagicBoy said:
Nice ninja.

Indy500 · 5 Jul 2013 at 00:43

JeditOjanen said:
Everything you need to know about the composure of Formula 1 drivers can be found in Felipe Massa's response to his puncture. A blowout at 150mph and he did not once invoke God, Jesus or that pantheon of deities whose names are replaced by a short row of asterisks by the forum software.

Hm...

20 Guillaume Rocquelin Sebastian Vettel Sebastian, try to burn up some fuel please. Low gear, high revs, burn up the fuel.

20 Guillaume Rocquelin Sebastian Vettel Don’t forget, ten car lengths behind Safety Car and no erratic driving either. I know it’s not easy, mate.

20 Guillaume Rocquelin Sebastian Vettel Keep on working on the fuel consumption, you can do better than this. Other cars are doing much better than you.

36 Guillaume Rocquelin Sebastian Vettel Watch your speed, hit your marks.

43 Kimi Raikkonen Mark Slade I can overtake? Or not?
43 Mark Slade Kimi Raikkonen If the Safety Car is showing the green light you can overtake it.

45 Tony Ross Nico Rosberg Just a reminder: When the Safety Car pulls in you control the pace when the lights go out.

I can use selective quoting too.

arknor · 5 Jul 2013 at 01:59

Ayao Komatsu “Copy that. Left-hand end plate is completely missing. We saw the contact after the Safety Car.”
Romain Grosjean “Not much, I think there was no contact.”

lol romain it's not contact unless his race is over

Skeeter · 5 Jul 2013 at 09:10

Glaucus said:
Well shows the teams should listen.
If the teams don't want to follow guidelines, then teams, drivers, FIA, media can't blame the supplier when it goes wrong.

Pirelli never explicitly told the teams not to swap tyres around. They also knew they were doing it. Last years tyres were left and right marked and the teams swapped them about.

Pirelli just never thought it would be an issue.

arknor · 5 Jul 2013 at 09:55

well maybe if pirelli labeled them correctly in the first place

Tyres shouldn't be faster when you put them on wrong

ZG002 · 5 Jul 2013 at 09:58

Skeeter said:
Pirelli never explicitly told the teams not to swap tyres around. They also knew they were doing it. Last years tyres were left and right marked and the teams swapped them about.

Pirelli just never thought it would be an issue.

That's the thing.. How on earth is it? Surely you would think the left and right wheel tyre combo's are identical. Do they put more effort in to left tyre on a right turn bias track or something? :confused:

arknor · 5 Jul 2013 at 10:53

ZG002 said:
That's the thing.. How on earth is it? Surely you would think the left and right wheel tyre combo's are identical. Do they put more effort in to left tyre on a right turn bias track or something?

maybe the tyres aren't fully symetrical and the camber is a few degrees different when reversed ?

Skeeter · 5 Jul 2013 at 11:06

The new tyre construction is asymmetrical (apparently).

arknor · 5 Jul 2013 at 11:15

wasn't there something about mclaren putting the wheels on backwords by mistake as well which was faster for them but there was something about it making the car to low and it was under the clearance requirements.

which would suggest the tyres are very different when put on reversed

Nismo · 5 Jul 2013 at 11:27

arknor said:
wasn't there something about mclaren putting the wheels on backwords by mistake as well which was faster for them but there was something about it making the car to low and it was under the clearance requirements.

It was a suspension part they put on upside down in testing IIRC.

Skeeter · 5 Jul 2013 at 11:28

Nismo said:
It was a suspension part they put on upside down in testing IIRC.

Indeed.

El_Watcher · 5 Jul 2013 at 11:31

MarcLister said:
Sidewall construction isn't it? So the outer edge is designed to take a different level of energy than the inside edge. So when the tires get swapped and used on the wrong side of the car, the tyre gets loaded with energy in a way it isn't designed for and the tyre is more likely to 'fail'.

Skeeter said:
The new tyre construction is asymmetrical (apparently).

Can we just confirm, are the teams putting the left tyre on the right side of the car and vice versa, or are they mounting the tyres on their rims so that the outer edge of the tyre is on the inner rim and vice versa?

If they are putting the left wheel on the right axle, then the issue must be down to direction of rotation of the rubber laminate layers.
If they are mounting the tyres back to front but on the correct side of the car, then it would be down to incorrect loading of the side walls.

arknor · 5 Jul 2013 at 11:34

pirreli put the rims on and label the tyres before they are given to the teams

Skeeter · 5 Jul 2013 at 11:36

Its sides of the car, afaik. So they are rotating the wrong way but the outside tyre wall remains on the outside.

ZG002 · 5 Jul 2013 at 12:16

El_Watcher said:
If they are putting the left wheel on the right axle, then the issue must be down to direction of rotation of the rubber laminate layers.

That sounds like a decent theory to me, will go with that.