Why do some tyres just never go green?

racing the XBOW last nite, at valllelunga and did 10 laps. Within those ten laps the tyres didnt go green part from the left rear?! Why is this, I’m driving the wheels off the thing. Is tyre temps broken?

 

give more info............-_-"

 

This has nothing to do with AC, if you want to know why some tires never go green, you should google about it or watch some videos about how tyres are working in racing...
Looks like your knowledge about tire usage are very poor.

 

Aris has said that lighter lower powered cars don't put much energy into the tyres. You wouldn't expect a car like the XBow to generate lots of tyre heat.

The colours are a guide but you still need to look at the actual temperatures. If green starts at 80°C then you can be at 79°C and you'll have a tyre of very close to the same temperature but they'll display different colours. The colours also reflect surface temps rather than core, surface temps are less stable than core and can change quite rapidly.

Have you adjusted tyre pressures? It's worth watching Aris's video about balancing pressures on the four corners.

 

Ambient and rack temps will have a pretty big effect, not all cars will have a tyre that works optimally in all conditions. The trick is to get the most out of it that you can in that session as that's what it comes down to in a race. It doesn't really matter if a tyre doesn't get to optimal temp but obviously it will work better the closer you get it there, its the same issue everyone has and whoever deals best with it and can drive properly will be quickest.

Its the exact same issue most people face at most tracks, not many race series or track day enthusiast come to the track with 4 or more compounds to suit the conditions. They run what they have and try to get the most out of it.

 

What are the track conditions?

Whats your grip level

 

it's also a very light-weight car.

 

On Nords I have no problem getting theKTM's tires up to temps.

 

Just never seen this tyre behaviour in other sims? I couldnt get the fronts to go above 55.. if thats as design so be it, but with all the sliding and general hard driving to raise temps - did nothing.

 

Vallelunga normal layout with KTM. 26C optimum track. Default setup. Out of pits + 3 laps. Just driving, no drifting for warmup. Tyres look like this.


I think KTM optimal temp is 65-85C or so.

 

oh may of been running a cool track

 

Probably yup

 

Vallelunga is covered with ice, everytime Aris breaks wind.

 

If you are so professional, give him an explanation.
But there's no need to judge somebody with this stupid "superior AC expert" behavior. Again and again.

 

Oh boy, I'm gonna spend week on vallelunga next month ... Now I'm scared of Arises winds

 

don't worry I'm too long in the tooth to listen to crap like that

it was pretty much ignored. Being an expert in ac certainly doesn't he mean he knows **** about racing or tyre physics and temperatures.

 

So what was the conditions when you made your ten laps? Air temp, weather, track grip setting? Default or custom setup? Was only one tire cold are all four?

 

I'm not gona give him an explanation because he is lazy to go and learn, he just want to come here and write "why" and everyone should come and explain.
Why he can't just use his brain a little bit and do a reserch? And than everything will be pretty clear! Or at least use the "search" function in the forums, I'm sure this topic was discussed like 100 times, and beside that he didn't even give us the honor and write which track temp he was using, didn't provide a picture, a video, nothing!!
And you call me a joke superior expert? I just don't want to waste my time when I see this type of attidude.
This is not a constructive dialog, it looks more like a troll who just want to blame the game for some reason.

 

Link to the video please?

 

can't remember precisely. But green track. default setup. Maybe around 13temp. Not sure of weather. Only the rear left went green. I think it has high tyre pressures for default? Maybe.