Holm86 wrote: ↑10 Dec 2019, 17:40
To me it just seems like Pirelli is not up to the task. This years tires were bad, and if what they had in mind for 2020 was even worse, its a big problem.
I am not sure that we can blame Pirelli.
What I suspect is happening, (and that is a bit speculation on my part) is that the problem is in the nature of the material. Pirelli designs the tires around a certain operation window, a temperature range in which the elastic modulus is more or less constant.
However I suspect that you can gain substantial performance if you bring the surface of the tire just to the edge of the rubbery range where it starts to drop off to becoming viscous. You can see that the top teams are working a lot with thermal camera’s, thermal conditioning in the rims etc. The game then becomes who can bring the tires the closest to the edge of the operating window.
For a midfield team this is not an option, because they are usually in traffic and/or fighting so they need to keep a margin to account for thermal variations. The front runners can bring it right up to the sweet spot. However that leaves zero margin, whereas a Force india can follow another car comfortably for half a race, a mercedes will eat its tires following a competitor within 2 seconds for a single lap.
Materialwise the only thing I could think off is to make the temperature limit as sharp and steep as possible to discourage people from going there. Perhaps that is what Pirelli did, but it only means that the top teams run them closer to destruction instead of taking more margin. And when we see blisters we question the tires not the user, apart from that this kind of tire behavior can be dangerous.
It is true that we do not see this with other tires and other classes, but I suspect that F1 is the only class where you have the budget and the creative resources to even think about exploiting these kind of avenues, which probably exist for all tires.