Maybe wet track day - tyre options

[SP_]

Hi all,

In short, I am doing an eve track day next Tuesday. I don't have time to change wheels on Monday / Tuesday morning, so I need to basically decide today what to do.

I can choose either Cup 2 or PS4S. The weather is not certain to be raining, but it's around a 40-50% chance

Anyone have any thoughts what I should do?
Car is currently on Cup 2, but given we're end of summer I'm tempted to chuck the PS4S on as will be expecting rain more and more now...

Cheers

[Panamax]

SP_ said:

The weather is not certain to be raining, but it's around a 40-50% chance

With that 50% chance you could hedge your bets, Cup 2 on the front and PS4S on the back.

[SP_]

Panamax said:

SP_ said:

The weather is not certain to be raining, but it's around a 40-50% chance

With that 50% chance you could hedge your bets, Cup 2 on the front and PS4S on the back.

Is it recommended to drive with mixed tyres?

[RandomCarChat]

Unless its a deluge i'd leave the Cup 2 on. Just make sure you get some heat into them before going for it.

[samoht]

I've run PS4S on track and they were ok, taking relatively short stints to keep the temps under control and was fine. So not a bad option if you want the insurance in case it's wet.

[WH16]

SP_ said:

Panamax said:

SP_ said:

The weather is not certain to be raining, but it's around a 40-50% chance

With that 50% chance you could hedge your bets, Cup 2 on the front and PS4S on the back.

Is it recommended to drive with mixed tyres?

A diagonal split would be safer. Is it a CW or CCW track?

[SP_]

WH16 said:

SP_ said:

Panamax said:

SP_ said:

The weather is not certain to be raining, but it's around a 40-50% chance

With that 50% chance you could hedge your bets, Cup 2 on the front and PS4S on the back.

Is it recommended to drive with mixed tyres?

A diagonal split would be safer. Is it a CW or CCW track?

It's Donington Park GP so CW

[brillomaster]

Id go ps4s. If it rains at Donington, you're not going out at all on cup2s.

I also dont have the means to swap wheels over easily, so given I live in the uk where it could do almost anything at any time, I stick to tyres that have a decent amount of tread.

[Throttlebody]

Go PS4S due to the chance of getting a dry session on the Cup2s versus a guaranteed performance on the 4S in all conditions.

[brillomaster]

Currently saying cup2 weather... what tyres did you go for?

Also im intrigued now, what car is it? Obviously the optimal choice is to take two sets of wheels with you and decide and change them on the day, but depending on the car whether you can fit them in. Only takes 15 minutes to change wheels if you have the right tools.

[SP_]

brillomaster said:

Currently saying cup2 weather... what tyres did you go for?

Also im intrigued now, what car is it? Obviously the optimal choice is to take two sets of wheels with you and decide and change them on the day, but depending on the car whether you can fit them in. Only takes 15 minutes to change wheels if you have the right tools.

Cup 2's are still on
It's a BMW M2 (original one)
It's looking dry, so I think I'm going to stick with them !

[brillomaster]

Nice. Should be a good day if it stays dry, enjoy!