Car setup - perfect tyre temperatures vs. same tyre pressure on all 4 tyres

There are two ways to get a perfect tyre setups. Perfect temperatures vs. same psi on all 4 tyres

Mission 1: Try to get all 4 tyres green (perfect temperatures) by lowering psi on blue tyres
vs.
Mission 2: Try to reach the same pressure (psi) for all 4 tyres after some rounds when tyres warm up and ignore mission 1, getting all tyres green.

Which way is the one i should prefer to get a good car setup?

 

Mission 2, get the 4 tire to their optimum pressure.

 

What is the behaviour trait of a cold tyre but one which is up to pressure?

 

I do it by Aris' instructions, drive enough laps to get tyres warm and then adjust pressures to get them into optimal (pressure).

 

Definitely (in AC) go for number 2 (optimal PSI).

This is always achievable and will give you an advantage over default.

On the other hand it is not necessarily possible to get the temps to optimim just by modifying PSI and if you try you are likely to harm your pace more by ending up way off the optimum psi. A tyre at the right temp but way too hard / soft is not really going to benefit you (imho ).

 

Yes, Aris is showing mission 2 in his video. I think i will go my next races by adjusting pressure in order to get same psi at all 4 tyres after some laps.

Let me ask another question. Did you always try to get nearly the same temperatures on outer|mid|inner part of the tyre? I took care of it since my last races.

As i read, the temperatur on the inner side of the tyre can by affected by too much of "+ toe-in" and the outer side by to much of "- toe-in".
On the other hand, a more negative "- camber" let increase temperature on the inner side of the tyre and higer "+ camber " increase temp on outer side.
There should be a max. of 10% temp difference from outside to inside. Is this correct?

 

Personally, I do not bother with the temp really at all. Set PSI to be optimal at race pace, then forget about the tyre temp altogether.

I only adjust camber and toe to change the handling of the car to either fix a perceived problem in the handling or to make it handle more to suit my driving style.

*Not saying this is the "right" way to do it but it works for me in AC.

 

^ This, exactly.

 

^
^ Same here.

 

Camber and toe do not do much for the temp spread anyway.

 

Well, #2 but I don't think it's worded accurately. You want to get all 4 tires to their optimum pressure but that won't always be the same pressure for all four tires. I find in AC as long as I have my tire pressures in their optimal range the car feels good and the temps work themselves out, I very rarely even look at my temps anymore.

 

Camber affect a lot the laptime, but it's more tied to the suspension & aero setting due to increase of grip that promote more suspension compression. Not related to the tire pressure on optimal.

I usually get around 7~10C degree of difference between the inner & outer temp. If you see low difference of temp (less than 7C), it need tweaking in the ARB & suspension in most cases or simply increase the camber.

If you download setup from skilled players & see that the front pressure is blue while your driving seem about correct, that's how you should drive. Be sure to mash the throttle at or after the apex.

 

Oh ****, not you again...

 

If it's incorrect, just tell me.

With proof & detail obviously.

 

I aim for both & mostly get it with a good setup. If not my primary focus is pressure.

 

Given the abundance of nonsense you already posted before in various setup-related topics the burden of proof should be on you.

 

I was wrong in many of them while @Coanda didn't correct me, nor you either. Usually one crack out, so the user is left with my answer which is funny.

By the way, the video above is on default setup with the PSI adjusted. It's funny how driving like that is much faster than driving smoothly(some racing line were way off).

 

dumb question but how do you not what the optimum PSI for the tyres should be ? are their charts available etc ?

 

Go for a green number in the tires app.
Blue means too low, red is too high.

 

or you install a App "TyrePressureEngeneer" with optimal Tyre Pressure Display.
https://www.assettocorsa.net/forum/i...sure-engineer-also-underteer-oversteer.28841/