[jedrinck]

I need to replace the tires on my 8V F Renault which I use only for trackdays, so rules are not a problem. I could get Kumho F 3 tires at roughly the same cost as Michelin F Renault tires. The F 3 tires are a little wider and I hope to be faster with them. The fronts have 20mm more diameter but that can easily be adjusted for with the pushrods. Is there any data about the coefficient of friction of these tires accessible to help evaluate if it is worth trying them? Or, has anybody tried exactly that and is willing to talk about it?