13" tires for autocross/track/street

[ashyers]

What were the pressures?

[sltous]

12 hours ago, KnifeySpoony said:

Those look brand new!

I suspect they were aging out as much as they were wearing out.  Starting to get reduced traction under heavier braking and some skidding on understeer.

 

8 minutes ago, ashyers said:

What were the pressures?

I try to keep them to 22 psi all around.

[sf4018]

On 4/29/2019 at 4:31 PM, BlueBDA said:

Thanks everyone for your educational responses. I called Roger Kraus, and it ends up I have 3 ZZR/S options (which I realize now is what Croc says above):

 

ZZR A24 compound (softest)

ZZR A64 compound (harder)

ZZS A84 compound (still harder)

 

From reading I was ready to pull the trigger on the ZZS, as I could hit rain on the street (or autox or track, for that matter). But before I do, I want to get more thoughts on just how dangerous either ZZR would be if (ok - when) I drive in the wet. Thoughts?

 

Of course I am replacing 14 year-old CR500s, so I'm sure anything will be a vast improvement.

 

Also - I am committed to buy one set of tires for all uses for now. After a season or two with the car I'll decide if I want to get a set that's optimized for autox or track.

I used the ZZR A64 this last weekend at Road Atlanta, they were very good in the wet. In the dry it takes 4-6 laps to get them to a good working temp but they lasted all weekend without much wear.

[KnifeySpoony]

Avon is no more it seems. All us aficionados will be switching to toyos I guess?

[sf4018]

3 hours ago, KnifeySpoony said:

Avon is no more it seems. All us aficionados will be switching to toyos I guess?

What happened?

[KnifeySpoony]

https://www.caterhamlotus7.club/forum/chitchat/cooper-tyres-melksham-factory-danger-closure

 

I guess it's just the uk manufacturing closing. Hopefully the zz line will move manufacturing overseas (and maintain quality). 

[KnifeySpoony]

Also hadn't realized they were bought by Goodyear last year. 

 

https://www.tyrepress.com/2022/10/cooper-to-close-melksham-factory-2023-consultation/

[Croc]

There are other Avon manufacturing facilities - Serbia for example.  The tires only stop production if not enough people buy them.  

[sf4018]

No supply chain issues next year 

Includes 1 set each of ZZR A64, A24, MAX for the Mitty next spring.

[KnifeySpoony]

I can imagine the glorious smell. I just have one spare set of ZZR A64 waiting for next year. What are the slicks? Max?

[sf4018]

They are Hoosier F2000 slicks, the old softer R35 compound (got them on the cheap as the series has moved to R55).