List 1A/B/C tyres for the damp

List 1A/B/C tyres for the damp

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Discussion

ABadger

Original Poster:

7 posts

147 months

Tuesday 10th November 2020
quotequote all
My series allows any 1A/B/C tyre to be used.

Using a scale of 0 to 10 where:

0 = totally dry
4 = dry line has disappeared
8 = aquaplaning has started
10 = red flags are out

I find my semi slicks are good up until the dry line starts to go, so 2-3 on that scale, then the heat disappears and the tyre rapidly drops off - by the time it gets to a 5 it is very gingerly.

I use Rainsports as my wet tyre, and they are worthless below 5, and only become the tyre to be on after about 7.

I’m looking for recommendations on a tyre that can operate between the 3 and 7 - which in my experience is what most wet conditions on track usually are.

Scenario 1 – doing a 15 lap race, it has stopped raining, but track is 4 or 5. If the rain doesn’t return the track will be 1 or 2, with a dry line by the race end

Scenario 2 – The track is dry. However, it is starting to spit of rain and the clouds look ominous. A heavy rain shower seems likely during the 15 lap race.


What would be the recommended tyres for either scenario, and what would be a recommended tyre for operating in the gap between dry and wet?



andy97

4,729 posts

227 months

Tuesday 10th November 2020
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You don’t tell us what car? But in the CSCC Magnificent 7 series for Locaterfields a lot of guys use soft Kumho v70s in damp/ raining conditions or Avon ZZS. Probably ok for all but really heavy cars?

ABadger

Original Poster:

7 posts

147 months

Tuesday 10th November 2020
quotequote all
Sorry light(ish) weight MR2 - 910kg.

No ABS or TC

Been recommended A052's by so many people, but in my size (205/15F 215/16R) they aren't cheap (£200+ a set more than the usual suspects) - and been told they fall apart on a long session (so say scenario 1 where it gets dry quickly, or scenario 2 where the rain doesn't fall till later in the day - the tyres could be overheating.)

I also have a set or Toyo R1R's, but never had the weather to test them!

So wondering what else is out there.


Edited by ABadger on Tuesday 10th November 22:06

andy97

4,729 posts

227 months

Tuesday 10th November 2020
quotequote all
Speak to BMTR and ask their advice - they are Avon distributors but worth asking them if their ZZS is suitable. I am certainly hoping to be able to use them on a Mk2 Escort I have!

D_G

1,842 posts

214 months

Tuesday 10th November 2020
quotequote all
Michelin PS4 are excellent for wet conditions, the PS3 is also good if you can't get the fours in the right size.
For dry tyres I would use R888r

ABadger

Original Poster:

7 posts

147 months

Tuesday 10th November 2020
quotequote all
D_G said:
Michelin PS4 are excellent for wet conditions, the PS3 is also good if you can't get the fours in the right size.
For dry tyres I would use R888r
How do they hold up over duration, say if the track starts to dry.

I had a set of Pilot Supersport on my M135i and they were falling apart after a lap of the Nurburgring - and that was a road car being driven hard, but hard and within itself.

D_G

1,842 posts

214 months

Tuesday 10th November 2020
quotequote all
They can fall apart, it depends how hard you push them. I'd choose to run on the R888s if it starts wet knowing it was drying.

I've not found a tyre that can do all of it, unsurprisingly.

ABadger

Original Poster:

7 posts

147 months

Tuesday 10th November 2020
quotequote all
D_G said:
They can fall apart, it depends how hard you push them. I'd choose to run on the R888s if it starts wet knowing it was drying.

I've not found a tyre that can do all of it, unsurprisingly.
Oh yes, if only somebody made one!

I have 3 sets of wheels, so it's trying to put a set of tyres on each of them that best covers all bases.

I have a decent dry and decent wet, but there is a big fuzzy bit in the middle.

AWRacing

1,729 posts

230 months

Wednesday 11th November 2020
quotequote all
What are your dry tyres?

Dan BSCS

1,178 posts

241 months

Wednesday 11th November 2020
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R1Rs are the perfect tyre for the conditions you describe. However, they have been discontinued due quite a while now so any you have or find for sale will be pretty old by now.

A052 are without doubt the best choice currently available and whilst they are expensive, they are also one of the very best in full dry conditions too so you don’t need different tyres for wet/dry (other than monsoon conditions).

ZZS are terrible in the damp/wet and PS4s will be useless if it dries.

/2p

HustleRussell

25,120 posts

165 months

Wednesday 11th November 2020
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3 sets of wheels?

-Dry set. Used semi slicks.

-Moist set. Semi slicks as per dry set, but brand new and reserved for that 'in between' race. Retire to dry set once furred up on a drying track.

-Wet set. A tyre which clears standing water for that one of two times a year that you're out in proper rain.

ABadger

Original Poster:

7 posts

147 months

Wednesday 11th November 2020
quotequote all
AWRacing said:
What are your dry tyres?
Running AR1's.

Seem to be quite a temperature and pressure sensitive tyre compared to say the R888R, but I find it faster once you get it right.

However I really struggle with the AR1 after condition get to say 2 on my scale. By the time the tracks at 4 the car is a handful, and putting rainsports is a lot faster - despite the track being nowhere near wet enough for them.


Edited by ABadger on Wednesday 11th November 14:42

ABadger

Original Poster:

7 posts

147 months

Wednesday 11th November 2020
quotequote all
accidental double post

Edited by ABadger on Wednesday 11th November 14:42

df76

3,747 posts

283 months

Wednesday 11th November 2020
quotequote all
My view on this has changed recently, and by a lot. Helped a friend race at a recent CSCC meeting at Combe. Similar conditions to the scenario that you describe. Very changeable, never dry but not monsoon conditions either. We ran Yoko A052s. Whilst not in the top class, he was easily on pole (and he was seriously delayed on the quickest lap) and fastest lap in the race by a second. Other competitors that are normally his pace were about four/five seconds a lap adrift, running a mix of Rainsports and some of other 1b tyres.

In my mind, nothing would come close to the Yoko A052. But they certainly aren't cheap.

Dan BSCS

1,178 posts

241 months

Wednesday 11th November 2020
quotequote all
Just buy A052s. It makes no sense whatsoever to skimp on tyres on a race car where they are without doubt, the single most important thing to make your car go fast.

Dan BSCS

1,178 posts

241 months

Wednesday 11th November 2020
quotequote all
HustleRussell said:
3 sets of wheels?

-Dry set. Used semi slicks.

-Moist set. Semi slicks as per dry set, but brand new and reserved for that 'in between' race. Retire to dry set once furred up on a drying track.

-Wet set. A tyre which clears standing water for that one of two times a year that you're out in proper rain.
This is spot on. But only now that R1Rs are no longer available. biggrin

HustleRussell

25,120 posts

165 months

Wednesday 11th November 2020
quotequote all
Dan BSCS said:
HustleRussell said:
3 sets of wheels?

-Dry set. Used semi slicks.

-Moist set. Semi slicks as per dry set, but brand new and reserved for that 'in between' race. Retire to dry set once furred up on a drying track.

-Wet set. A tyre which clears standing water for that one of two times a year that you're out in proper rain.
This is spot on. But only now that R1Rs are no longer available. biggrin
Also I forgot, +5psi or more in the rears if using semi slicks in the wet provided it’s not going to dry

Dan BSCS

1,178 posts

241 months

Wednesday 11th November 2020
quotequote all
HustleRussell said:
Also I forgot, +5psi or more in the rears if using semi slicks in the wet provided it’s not going to dry
I’m assuming you mean in a FWD car?

I would probably say, you need to bear in mind that the tyres won’t get as mush (if any heat) in them so you need to have them closer to your target hot tempS when they’re cold.

stevieturbo

17,443 posts

252 months

Wednesday 11th November 2020
quotequote all
What actual size do you need ?

Some of the Extreme remould tyres seem to get good reviews on hillclimbs etc and they use them on rallies too, not sure about all rounders but they offer various styles.
Some are on the MSA lists, not sure which ones though

https://www.extremetyresuk.com/kategoria-produktu/...