1b tyre advice for newbie going racing ?
1b tyre advice for newbie going racing ?
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JeffC

Original Poster:

1,835 posts

241 months

Saturday 5th January 2008
quotequote all
dunno if this is the right place for this but.....

im looking for the same info regarding a 1b tyre, Im looking to race in the northern saloons this year,( bec sub 500kg ) I currently run on toyo 888 gg compound on the road and run second hand michelin Slicks/wets for trackdays. The used slicks I run are not a lot quicker than the 888s but are cheaper to abuse hence the use.

Looking at the northern saloons to run brand new Slicks and renewing them regularily to stay competetive for me I think is going to be too costly , hence dropping onto the 1bs and go into a different class , Ive researched cr500s and what i read on different websites people are saying 888s / ao48s are gripier for track use (and lump cheaper )but cr500s having the advantage in the wet. Acb10s get the thumbs up for dry but a big nono for wet , so far Im coming to the conclusion that 888s may be the answer but would really appreciate any advice from anyone thats run on various 1b dry tyres with a light car and whats a recomended 1b wet tyres same question.

Thanks in advance. Jeff.

phatgixer

4,988 posts

278 months

Saturday 5th January 2008
quotequote all
Cups all the way...

andy97

4,784 posts

251 months

Saturday 5th January 2008
quotequote all
What car are you running?

JeffC

Original Poster:

1,835 posts

241 months

Saturday 5th January 2008
quotequote all
phatgixer said:
Cups all the way...
????


Its a tuned hayabusa powered westfield .

andy97

4,784 posts

251 months

Saturday 5th January 2008
quotequote all
JeffC said:
phatgixer said:
Cups all the way...
????


Its a tuned hayabusa powered westfield .
I see, so "bec sub 500kg" means bike engined class presumably, I was wondering.

You could pick up second hand F Ford slicks (or ACB10s) for about £5 a corner (from teams testing at Oulton or Anglesea) & it'll cost you another £5 a corner to get them fitted. They'll probably last a couple of races.

If it is List 1b tyres you want then Yoko A048s are very good & I have been recommended to try Avon CR28 Sports as a "wet" but I run a light FWD car.

Edited by andy97 on Saturday 5th January 17:29

sfaulds

653 posts

307 months

Saturday 5th January 2008
quotequote all
I'd try and make ACB10's work on it. Great in the dry, and not as awful as many think in the dry. The CR500 will be leagues ahead of any of the saloon-based stuff in the wet.

JeffC

Original Poster:

1,835 posts

241 months

Saturday 5th January 2008
quotequote all
I run sceond hand slicks for trackdays and have done for the last 3 years but when you buy them they are well past there best performance , racing teams only part with them for one reason I guess, and when back to back testing at Croft this year I was lapping no faster on used slicks than I could on my 888 toyos so any tyres Im buying are going to be new to race with or stick with my current 888s.

I know plenty of people that have run acb10s and they all rate them highly but Im yet to find someone to give me a lap time comparrison between them and 888s/a048s or cr500s. would be nice if I could piggy back someones experiences rather than chucking £400 at a set of tyres to find they are no better than what Ive got (iyswim)

Ive used cr28s in the wet and much better than 888s but not in the same street as the formula renault racing wets I use(but they were never going to be)..


anonymous-user

83 months

Saturday 5th January 2008
quotequote all
ACB10's are great because they are so light (same carcass as the slicks) compared to a normal construction tyre like the 888, plus you can get them in 15" if you want to run larger wheels. They are also a crossply, so you can drive them at much larger slip angles before they break away, which is helpful if it's early in your racing experience.

JeffC

Original Poster:

1,835 posts

241 months

Sunday 6th January 2008
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what camber is recomended for an acb10 to work at its best ?

custardtart

1,746 posts

282 months

Sunday 6th January 2008
quotequote all
easy, acb10's for dry and ao48r for wettish and if the budget can stretch, avon cr28 sports for full wet.

jon-

16,534 posts

245 months

Sunday 6th January 2008
quotequote all
Autobild did a trackday tyre review a number of years ago, the results can be found here: http://www.tyrereviews.co.uk/Article/autobild-trac...

The default answer of A048 might not be the best for dry weather

anonymous-user

83 months

Sunday 6th January 2008
quotequote all
Being a crossply you want very little camber on the ACB10, around 0.4-0.8 degrees negative. Radials need a lot more, so bear that in mind if you are swapping between tyres for wet/dry.

anonymous-user

83 months

Sunday 6th January 2008
quotequote all
jon- said:
Autobild did a trackday tyre review a number of years ago, the results can be found here: http://www.tyrereviews.co.uk/Article/autobild-trac...

The default answer of A048 might not be the best for dry weather
Thats a bit out of date now, the problem with tests like that is you can buy diferent compounds in some of the tyres tested, so you may not be seeing the best of a particular tyre brand.

jon-

16,534 posts

245 months

Sunday 6th January 2008
quotequote all
johnfelstead said:
jon- said:
Autobild did a trackday tyre review a number of years ago, the results can be found here: http://www.tyrereviews.co.uk/Article/autobild-trac...

The default answer of A048 might not be the best for dry weather
Thats a bit out of date now, the problem with tests like that is you can buy diferent compounds in some of the tyres tested, so you may not be seeing the best of a particular tyre brand.
Very true, though IIRC autobild noted they tried to get a medium compound where available.

Someone needs to do a more up to date version.

JeffC

Original Poster:

1,835 posts

241 months

Sunday 6th January 2008
quotequote all
I speed read that but did it suggest what car that was tested on was it a heavier car as I dont know anyone in the westfield/caterham wrld that runs the michelin tyres! most are on either ao32"s/48"s/888"s.

Kickstart

1,119 posts

266 months

Saturday 12th January 2008
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I ran List 1B tyres on a Crossle (570 kg & 220bhp) - tried ACB 10's and CR500's over a couple of seasons. I preferred the CR500's and found them to be just as quick as the ACB 10's in the dry and a bit better in the wet although far from good.
Why don't you speak to the Avon Motorsport rep (sorry forgotten his name) he is very helpful and extreamly knowledgeable

lanan

814 posts

257 months

Saturday 12th January 2008
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Brian is your man.

thunderbelmont

2,982 posts

253 months

Sunday 13th January 2008
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I know people who swear by the 888's over anything else. They say that the are the closest thing to a slick with tread and road legal!!

Plus they work in the wet.

And they're cheap.

anonymous-user

83 months

Sunday 13th January 2008
quotequote all
It depends on the car as to which tyre suits best. The 888 is a fantastic tyre for a sprint type event as they come in within half a lap and are stunning on the first hard lap, they do drop off a bit after that but still are extremely good. They weigh a fair bit more than an ACB10, and i havnt used them on a light car such as a seven so cant say if they stay at their peak performance longer on that, i expect they would. Definately one of the better tyres out there.

JeffC

Original Poster:

1,835 posts

241 months

Sunday 2nd March 2008
quotequote all
just brought this back to the top to see if anyone else has an opinion on 888s against cr500s and khumos etc , race series I run in will be ususual 20mins so dont want something too soft that will go off after 10mins..

thanks for the info so far.