Quote:
Originally Posted by davidmct-M3
I am also not sure whether wider tyres will gain much contact patch increase. The contact patch is a function of tyre pressure, car weight and tyre structure. So a wider tyre may actually have a wider but narrower contact patch as the weight is spread over the same area. However it may improve longitudinal grip on corners. What what I’ve read the physics of all this is quite complicated!
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I’d also go so far as to say, the point I’m usually trying to get across is, I don’t think you’re gaining anything by going to an inferior tire compound.
The BMW Star 285 is a 4 compound tire, made out of half PS4S and half Sport Cup 2. Going to a 295 section tire, just because it’s 10mm wider, and is only comprised of the standard 2 compound PS4S, I think you’re losing more in compound, than you are in width.