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Originally Posted by Vova  I'm not following you at all, what the hell does a fresh fitted tire have to do with this? Or a cold one? Weight and power heat a tire...how does this not work when the tire is fresh or cold  |
Because when you pull away for the first time on your cold tyres, that you just fitted, they will be cold. As in cold, because you just fitted them. How are you not getting this? Fit new tyres to car - tyres are cold. are cold tyres. cold tyres are. This is first lap on a track stuff. first corner every journey. and any difference in grip in this state is due to the theoretically impossible difference in contact area.
So these cold tyres - narrow ones have less grip, wide ones have more grip or no difference? Vote please. These results will give an indication of whether the equation on the internet is right (wide tyres have no more grip except that due to better heat management) or whether everyone's knee jerk reaction is right. Yes, tyres will warm up, but not immediately, thermal inertia and shit.
Or warm the tyres to the same working temperature, then try it. Eliminating the wider tyres better heat management is the key to really getting down to the bottom of the issue, which is that it's entirely counter-intuitive.
Let's either validate this theory with practical data or find a new theory. Then we can all join together and write it out in short words for the world to understand and marvel at our scientific methods.
In summary - someone send me a pair of 165/70R14 and a pair of 195/60R14 in the same compound, we'll find a nice grippy bit of road, disconnect my turbo and with the tyres cold see if my MX5 can spin up the fat ones in second when pulling away. I'll send the remains of my clutch to the tyre supplier, signed, and a box of chocolates, promise.