2023 Tyres Thread

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https://press.pirelli.com/2023-tyre-com ... australia/

This year, the number of compounds that Pirelli can nominate throughout the season has increased to six because a new compound in the hardest range has been created. They’re numbered from zero to five, from the hardest to the softest, with the letter ‘C’ standing for ‘compound’.

COMPOUND 0
Last year’s C1 tyre has become the C0 for 2023. This is the hardest tyre in the range, which will be nominated for the circuits that take the most energy out of the tyres. It’s designed to provide maximum resistance to heat and extreme forces, being capable of running very long stints, but this comes at the expense of peak performance.

COMPOUND 1
This new-for-2023 compound slots in between last year’s C1 and C2. Based on the latter, it was created to reduce the performance gap between what had previously been the two hardest compounds in the range.

COMPOUND 2
The third-hardest compound remains very suited to the faster, hotter and more abrasive circuits. The harder compounds are sometimes nominated for new circuits, providing a conservative selection so that tyre loads can be verified in real-world race conditions for the first time.

COMPOUND 3
This compound is extremely versatile and can be used as either the hardest, the middle or the softest of any three-compound selection. With an excellent balance between performance and durability, this is well-suited to a wide range of conditions.

COMPOUND 4
This compound is designated to work well on low-severity circuits, where quite a quick warm up is required in order to reach peak performance as soon as possible. This tyre is used extensively throughout the season.

COMPOUND 5
These are very softest tyres in the range, designed for the slowest circuits with low wear and degradation where maximum mechanical grip is required from the rubber. These are normally seen at street circuits or where the asphalt is exceptionally smooth.

Compounds Nominated for each Grand Prix:



This thread is for discussing all things tyre related in 2023

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A softer hard tyre for Bahrain could make for an interesting strategic race. It will be less obvious what to do hopefully

Only other difference to '22 so far is Australia using c4 for soft rather than the c5 they used as the 'quali tyre' last year

[Juzh]

Fronts on all compounds have been tweaked to reduce understeer right?

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Exciting let's see if the teams will actually run this compound

[AR3-GP]

I'm sure all the wet tire needed was allocation of R&D to improve it and it sounds like this finally came. The old wet tire was a relic.

[johnny comelately]

Read what Andi76 said in CFD - 2022 Ferrari F1-75 (sidepod analysis) about tyres

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First indications that the #Pirelli 2023 tyres will run with lower starting pressures thanks to the new structure.
We will see if this good intention can be maintained. Which would mean an increase in ground surface and grip

Sounds good to me

[johnny comelately]

FROM Andi76

"I think there is something about their suspension that they can run their car lower. I have the feeling that they also have found something in the summer break in relation to the tyres and how make maximum use of them. With the new cars suspension set-up and making maximum use of the tyres can make a huge difference. Two main determinants are tyre temperature and contact frequency. These work in opposite directions. As temperature rises, the compound becomes softer. As contact frequencies rise, the compound becomes harder. Getting to the point at which the tyres achieves its ideal state is therefore a delicate balancing act. The higher the contact frequency, the more temperature you need to compensate in order to keep the tyre at its intended compound softness. You must control these variables. Contact frequency is about how the loads react upon the rubber. Because rubber is a viscoelastic material, the way it reacts is not consistent. Up to a point the rubber will accept incoming energy and react against it, trying to spring back in the opposite direction to the load and thereby creating grip. Beyond that point the rubber cannot regain shape quickly enough to absorb the next input of load. This has the effect of stiffening and hardening the compound, breaking the process down and causing the tyre to slide. Tyre temperature is largely to do with the amount of energy the tyre is absorbing - though track temperature plays a significant part. As the tyre accepts the loads, so the energy is absorbed and this creates heat. Keeping the tyre exactly at the point where it achieves its vitreous transition and thereby achieves its ideal, intended compound softness all the time is a balancing act and can obviously give a massive advantage. The season has shown that Ferrari has problems in that area, as does Mercedes. Red Bull understands this best and in Spa they probably completely nailed it. With the new tyres this is very hard as the ideal window where the contact frequency is in harmony with temperature is very narrow."

FROM Andi76

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https://www.corriere.it/sport/formula-1 ... 3085.shtml

Isola confirms the 2023 tyres are 1.8kg for the full set compared to 2022

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Isola says that with no tyre warmers, 7 degrees track temperature, the new wet tyre was both easier to warmup and offered better performance than the old wet tyres with tyre blankets. They then confirmed this result with multiple further wet tests with ferrari, alpha tauri.

So it's safe to say the new wet tyres will be better. Now just need better visiblity

[vorticism]

Is this the new rain tire?

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https://racingnews365.com/exclusive-pir ... british-gp

Tyre specification changes are being made for the second half of the season according to this report from racingnews365.

It doesn't go into great detail other than stating that the changes will be brought at Silverstone and the new specification would be the tyre intended to be ran in 2024 also

[AR3-GP]

https://racingnews365.com/exclusive-pir ... british-gp

Tyre specification changes are being made for the second half of the season according to this report from racingnews365.

It doesn't go into great detail other than stating that the changes will be brought at Silverstone and the new specification would be the tyre intended to be ran in 2024 also

Silverstone you say?

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A caveat to this whole new tyre specification thing..

It's been confirmed by Ricciardo that he will be carrying out a "tyre test" with the rb19 at Silverstone.

Pair this with the story from racingnews365 about the new spec tyre (also the tyre that will be used in 2024) coming at Silverstone.. it seems possible that the racingnews365 story could have been created by a misinterpretation / mistranslation to do with this upcoming tyre test which Ricciardo will take part in?

[dialtone]

Not going to lie... Pirelli has to stop introducing new tire spec mid season. Especially with budget cap it makes no sense that I optimise for the tires from the start only to have that work thrown out because suspension will need a different window later.