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r888s vs slick tyres
john77cars - 19/9/10 at 09:10 PM

im running r888s for trackdays and thinking of getting some slicks,will i notice a diffrence with slick tyres on compered too the r888s.

scootz - 19/9/10 at 09:16 PM

Oh yes!

Dangle_kt - 19/9/10 at 09:17 PM

especially in the wet

locoR1 - 19/9/10 at 09:20 PM

quote:
Originally posted by Dangle_kt
especially in the wet


matt_gsxr - 19/9/10 at 09:23 PM

Do you need to change the geometry for slicks? I only say this because I was running ACB10's which are crossply and need different set-up. I sort of thought that slicks might be crossply, but I don't really know.

It is a pain if you want to use radials on the roads, and slicks on the track as you don't want to be continually changing the geometry.

Matt

CNHSS1 - 19/9/10 at 09:50 PM

just run crossply slicks with the ACB10s as the carcass construction is the same, identical infact, hence no issues with geometry changes.
Generally the difference between crossply and radial slicks, is that crossplies need near zero camber and toe and are more progressive near the limit of adhesion (they let you know ) and radials have a slightly higher ultimate limit but when they are gone, they are gone! Radials also benfit from camber.
As for 888s vs slicks, night and day, similar to Ditchfinder 3000s vs 888s....

Andy D - 20/9/10 at 02:57 PM

I would think new slicks are a fair bit grippier than 888s, but I've found there's not much difference between used Michelin (radial) slicks and new 888s.

The main difference is the price , second hand slicks at £15 a go, and 888s ... a bit more!

vyperstrype - 20/9/10 at 03:14 PM

Slicks Every time

Dopdog - 20/9/10 at 03:26 PM

but do poeple let you use them on track days?

Andy D - 20/9/10 at 03:44 PM

quote:
Originally posted by Dopdog
but do poeple let you use them on track days?


I've never had a problem, but I've heard of some organisers insisting that the car has suitable roll over protection.

Andy D - 20/9/10 at 03:44 PM

quote:
Originally posted by Dopdog
but do poeple let you use them on track days?


I've never had a problem, but I've heard of some organisers insisting that the car has suitable roll over protection.

Dopdog - 20/9/10 at 05:06 PM

Got that then will have to look into this one

snakebelly - 20/9/10 at 05:24 PM

also bear in mind that slicks will need bringing up to temp before you get the best of them, also how you store them in between track days can affect their life. Some slicks are also only any good for a number of heat cycles.

Andy D - 20/9/10 at 05:34 PM

quote:
Originally posted by snakebelly
also bear in mind that slicks will need bringing up to temp before you get the best of them, also how you store them in between track days can affect their life. Some slicks are also only any good for a number of heat cycles.


That's what I mean... the reason the racing teams get rid of them is because they're past their best. Still OK for trackdays though.

john77cars - 20/9/10 at 06:47 PM

thanks for the replys,im going too order some used michilin slicks and see how they are.