Wet tyres

Author
Discussion

Output Flange

Original Poster:

16,802 posts

212 months

Tuesday 15th March 2016
quotequote all
Those of you restricted to 1a/1b/1c tyres, do you run the same size for wets or do you go narrower?

I know that on road cars, when you switch to winters for bad weather you drop down a width (same weight pressing down on a smaller footprint should lessen aquaplaning?) but does the same apply for track driving? In my mind it should!

stevieturbo

17,269 posts

248 months

Tuesday 15th March 2016
quotequote all
Output Flange said:
Those of you restricted to 1a/1b/1c tyres, do you run the same size for wets or do you go narrower?

I know that on road cars, when you switch to winters for bad weather you drop down a width (same weight pressing down on a smaller footprint should lessen aquaplaning?) but does the same apply for track driving? In my mind it should!
You fit what is convenient and appropriate, any myths about smaller footprint...well, it is a myth really.

For a very brief moment if you drive through body of water large enough to aquaplane would you want a narrower tyre that offers less grip everywhere else ?

Does whereever you race, experience huge puddles or floods ?

andy97

4,703 posts

223 months

Tuesday 15th March 2016
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I don't have any "wets". I race on whatever tyres are on the car, usually Yoko a048s or Toyo 888s - they are meant to be road legal! I carry two spare wheels in case of punctures and that's it.

I know people do have a set of "wets" but if everyone is on list1b or 1c then I think it's negligible value tbh, unless you are right down to the wear bars.

If a series allows the use of proper racing wets then that's a different matter.

Kinkell

537 posts

188 months

Tuesday 15th March 2016
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My mk1 Escort is about 1 second a lap quicker on soft compound 048s than mediums and a certain Avon tyre is quicker than both in the wet. I have found that my car handles better on 185s than on 205s and thus quicker.
We have lost our control Yokohama tyre this season due to lack of availability so it will be interesting finding faster rubber.

df76

3,638 posts

279 months

Tuesday 15th March 2016
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In "proper" wet conditions, and I mean puddles, a decent road tyre will be significantly quicker than anything designed for dry track use. There are a few independent tyre tests where the Yoko AD08 (which actually has ok wet weather ability compared with some) has been run against road tyres, and the findings are consistent.

Or this is a track focused wet tyre:

http://www.avonmotorsport.com/road-legal/performan...

But for 2016 onwards, unless your car is pre-1990, it's a List 1c tyre.

Kinkell

537 posts

188 months

Tuesday 15th March 2016
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That looks like that certain Avon. I think they need a lap or two to warm up as we stuck with Yokos for the hills.

Trev450

6,325 posts

173 months

Tuesday 15th March 2016
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For a list 1b tyre for wet use you won't do much better than Toyo R1R's.

stevieturbo

17,269 posts

248 months

Tuesday 15th March 2016
quotequote all
Trev450 said:
For a list 1b tyre for wet use you won't do much better than Toyo R1R's.
Did they stop making them too ?

That's the thing, it's slightly less about width etc...more about tread design. Some tyres just lend themselves better to water dispersal than others.

Pick the softest rubber with the most efficient tread design to get rid of water, R1R's are pretty good in that respect.

Trev450

6,325 posts

173 months

Tuesday 15th March 2016
quotequote all
stevieturbo said:
Trev450 said:
For a list 1b tyre for wet use you won't do much better than Toyo R1R's.
Did they stop making them too ?

That's the thing, it's slightly less about width etc...more about tread design. Some tyres just lend themselves better to water dispersal than others.
Pick the softest rubber with the most efficient tread design to get rid of water, R1R's are pretty good in that respect.
Not sure if they've stopped making them but all the usual places appear to have stock.

df76

3,638 posts

279 months

Tuesday 15th March 2016
quotequote all
Whilst this is from the USA, it does pitch the Yoko AD08 and Toyo R1R against the best performance road tyres. There are wet weather tests:

http://media.caranddriver.com/files/monsters-of-gr...

stevieturbo

17,269 posts

248 months

Wednesday 16th March 2016
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df76 said:
Whilst this is from the USA, it does pitch the Yoko AD08 and Toyo R1R against the best performance road tyres. There are wet weather tests:

http://media.caranddriver.com/files/monsters-of-gr...
Doesnt state specific tyres in the list ?

or how much water they're dealing with ?

wet, raining and standing water are all very different

df76

3,638 posts

279 months

Wednesday 16th March 2016
quotequote all
stevieturbo said:
Doesnt state specific tyres in the list ?

or how much water they're dealing with ?

wet, raining and standing water are all very different
Google to the rescue...

http://m.caranddriver.com/comparisons/monsters-of-...

I guess if you have specific puddle size questions, you'll have to contact the editor.

HummuH

8 posts

102 months

Friday 18th March 2016
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I've found Uniroyal Rainsports the best tyre to use in full wet conditions (standing water) if racing wets are not permitted. Also tried AD08R and R1R's, Uniroyals were the best, comfortably.


Oilchange

8,468 posts

261 months

Friday 18th March 2016
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made in England too I believe

RegMolehusband

3,963 posts

258 months

Friday 18th March 2016
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andy97 said:
I don't have any "wets". I race on whatever tyres are on the car, usually Yoko a048s or Toyo 888s - they are meant to be road legal! I carry two spare wheels in case of punctures and that's it.

I know people do have a set of "wets" but if everyone is on list1b or 1c then I think it's negligible value tbh, unless you are right down to the wear bars.

If a series allows the use of proper racing wets then that's a different matter.
Yes, I did that last year until my Avon ZZR's hit running water at Prescott Hill Climb and I lost all steering and had a horrible spin close to banks and Armco.

So this year I am getting some Avon CR28 or similar for wet days (whatever is on the new List 1B list).