For a high-downforce cars, we need stronger tyres.
What exactly do you mean by stronger?
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That it doesn’t blown in high-downforce cars
Have you used the quality slider?
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Of course. And 2020, and 390 wheels width. And semislicks
Hmm, never happened to me, and I have some cars with pretty massive downforce. Could you share some more details?
Just a thought, you’d be amazed how many people don’t use them!
In that case the downforce you have is probably so high that no reasonable road-legal tire would be capable of withstanding it. This is a production car building game, not a race designer after all.
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Yep.
CL front and rear: -0.8 (initially it was -2.88, but it blowns, and I started lowing values). Is for a new body in development.
Is a street F1.
And I obtained these values from a race aerodynamics book, with a table with the CL, Cd and front area.
It was caught from a F1, but I reduced the Cd, and I put 0.20 because is a streamlined body, near the ground
I’ve had tires blow before. I’ve actually gotten them to work by lowering the quality slider, or by choosing lower quality tires. It has even happened on my cars that don’t use any downforce at all. It usually happens to me with tires that are low profile, wide, and have a small diameter.
No downforce without drag. Car bodies with F1-like downforce will have CD values around 1.00, which makes your top speed much lower and hence the downforce more manageable for the tires.
Unless you do like Lotus did and have ‘active’ aero of a giant fan sucking air up from underneath the car 
Actually come to think of it where the hell did all that air go, surely it would have increased the backwash and therefore drag anyway, right?
Doesn’t the 599xx Evoluzione also have some kind of active air sucking device, or was that just the turbulence breaking buffeting system?
My body is a wingcar with fan, and is streamlined.
And, the F1 had a lot of drag due the flat floor, the open wheels, the open cabin, and the restrictions about the diffuser and the before mentioned floor (it can be a wingcar), and due this, the 85-90% of the downforce is generated by the wings.
And the wings induces drag. But the ground effect is considerably lower
Isn’t a wing like on that first car kind of counterproductive, since it 1) messes with the center of gravity (unless it’s made out of some super-light material on a metal frame ofc) and 2) is more prone to side wind?
Or, is there any advantage to it being so high up?
The chaparral 2H it was a disaster. Due the aero and the visibility.
In the era, the wings it was fitted high because in this era, any team used a windtunnel to test, and to caught better the non-turbulent air (laminar).
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So basically as far from a road-going production vehicle as possible? I’m starting to suspect that your tyre problem is caused by the fact that you’re trying to build a 2020’s ground-effect wing car in a game that is mainly based around designing mainstream production cars in the 20th century.
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Active aero has been banned in every racing series for anwhile now.
As for ground effect, its not as dragless as people think, as you are still producing downforce aerodynamically.
And anything with loads of downforce has a pretty high Cd, even the lmp1 cars. The audi r18 for example has a cd of .47
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A higher wing is more efficient at producing downforce than a lower one, another example of this is the dodge daytona/plymouth superbird, the rear wing was mounted high up to provide large amounts of downforce with minimal drag. depending on cornering g the higher center of gravity could be an issue.
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It’s not high vs low wing as much as the wing being in clean airflow.
On most sedans/coupes that does mean making the wing very tall so it’s not in the wake of the cabin.
On the chaparral I would suspect it was made like that because they didn’t know 100% what they were doing back then. They just tried that and got decent results so that’s what they decided to do.
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To be precise, a 2017 car.
But yes.