Track tires WHAT ARE YOU RUNNING?

Alkhater said:

I have no doubt they lose grip due to wear but this theory seems off… less rubber means less heat retention but also faster to heat up.

Maybe they mean that with less grip and so less speed the tires lose temperature?

I’m just questioning the idea Dunlop is suggesting that the root cause is temperature.

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They heat as a result of weight/load, and friction, less grip less load and friction as you go slower.

You obviously go slower with less grip but the question is what’s the root cause of this reduction.

The link above Dunlop states that it’s temperature and I find that hard to understand.

Let’s say you do a 50 lap session on a set of Dunlops… Dunlop is suggesting that tire temperature will drop before lap times. I don’t know how that makes sense

Alkhater said:

You obviously go slower with less grip but the question is what’s the root cause of this reduction.

The link above Dunlop states that it’s temperature and I find that hard to understand.

Let’s say you do a 50 lap session on a set of Dunlops… Dunlop is suggesting that tire temperature will drop before lap times. I don’t know how that makes sense

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“New Dunlop tires are their maximum traction level as the level of rubber on the tire is highest. The tires run hottest at this point in the tire’s life. As Dunlop tires lose rubber they begin to run cooler and slowly lose their maximum grip.”

My interpretation of that is as mass disappears from the tire it holds less heat. Probably both from less mass storing the heat, but also simultaneously they are presuming a lower load/friction ratio as their stickiest outer compound thins out.

I mean I guess if you started drifting the rear end around every corner or do a burnout in the paddock presumably they wouldn’t loose heat, but short of that there would be concurrently a lower load to friction ratio and slower speeds.

Coming off an apex and gathering speed in the drive phase the best riders are modulating the throttle so that the rear wheel is working right at its limit of traction, and as that traction goes off you use less and less throttle in the drive phase as you feel the rear wheel start to slip with less and less power applied as the tire degrades.

Steven31371 said:

best riders are modulating the throttle

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Electronics are doing the work nowadays

Generating heat from movement, is simply kinetic energy turning into heat energy. When the tread is thinner there is less mass crushing on its self making this transformation of energy and less mass holding the heat. It simply dissipates heat faster. Ya, I think Steven was saying that.
There are many factors keeping a tire to the ground, friction, suspension and adhesion in the rubber. Adhesion is the sticky aspect when it's hot. Suspension is the rebounding material from elasticity & absorbing upward movements; Friction is a coefficient if I remember physics 101, weight distributed over the contact patch. The size of the patch does not change the amount of friction.
What's most important is the ability to adhere to the roughness and irregularities of the surfaces "in absence of lubricants" in contact increasing the friction advantage. Adhesion is the opposite of lubricant, let's say. Adhesion is increased with heat making it sticky until it's so hot, it becomes liquid and IS THE LUBRICANT and overcomes the friction.
Wear is a random factor in friction. GAS GAS = Wear

Responding to the original question, IMHexperience, if you increase the traction control and also wheelie control your tire wear goes WAY DOWN.
Find the tire that fits your style, then, traction control. I would not go for a harder tire thinking it'll last longer.
I would go for a harder tire carcass (not harder tread) if you like, @Jolly Roger V4 want quicker turn in feel or something like that.

I found the answer to my question… https://apps.dtic.mil/sti/pdfs/AD0755817.pdf

I guess the ability to dissipate heat with less rubber is greater than the ability to acquire it.

Alkhater said:

Dunlop is suggesting that tire temperature will drop before lap times. I don’t know how that makes sense

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If you happen to be riding on the carcass, there's no rubber to heat up :}

Rubber, riding and carcass… all in one sentence. Oh hell no, I’m out!

Ran the Pirelli SC's yesterday at Inde Motorsports Park track day. Pretty happy overall with their performance. Pressures used were off the Pirelli website: Diablo Supercorsa SC3 TD – Pirelli Racer

I like the Mig in the background!!!

And I believe an Aardvark too...

Yea, they have quite a collection there at the ranch. My wife's dad flew the F-104. SCARY aircraft!