bluechris wrote: ↑11 Nov 2023, 21:20
LM10 wrote: ↑11 Nov 2023, 20:12
bluechris wrote: ↑11 Nov 2023, 18:53
I think you need to raise the pressure to get more heat. At least that is what is happening with my car & motorcycle
What you see there is raising pressure with raising heat due to energy being put into the tyres while driving.
I see this during track days where i put my car in and i end up lowering tyre pressures because my tyres overheat after some push laps (normal tyres, not slicks) but i understand what you & others are saying.
You bring up an interesting aspect there that is common to F1 in that a road tyre and a "hard" compound race tyre display similar characteristics. Too high a pressure, then the carcass doesn't flex to contribute in warming the structure, the tread though slides causing too much heat in that tread depth, the tyre then shows less grip to the driver, but now lacks that pure traction to effectively bend the carcass and establish its normal method of generating heat. You can see this is a circle response that's hard to get out of as in a race they simply need pace and can't back out of that without getting caught.
Exactly what we see on different chassis and how they work the different tyre compounds, with some able to use all the tyre types, others just effective on one type and very poor with alternatives. All the more heightened by the change in 13" to 18" in F1 these are simply narrowed in their "gateway" of peak performance, without the ability to stay right in that zone the performance is toast