Brake dragging in iRacing! Is it worth it? Does it work?

[@PudinMeUp]

Why do you want the tires hot? Also is it a game mechanic where the heat from the brakes effects the tires?

[@Team204]

I'm not sure of the official in game answer, but I can share real life experience. Cold tires are slippery, warm tires are sticky. This is unfortunately true only to a point though, as hot tires get slippery. A good example of this is drag racing burn outs. You never see a half second burn out, because the tires would still be too cold / slippery. On the other hand, you ever see a minute long burn out, as that would overheat the tires, making them 'greasy'. In circle track racing, a cold tire, such as the beginning of a race, will not have the traction of a warm tire that has, say, 5 laps on it. That's why the first few laps of a race will normally have the most incidents / spins / wrecks.
As far as in game mechanics, I can't say for sure. But the concept is thermal transfer through proximity. Heat from the brake pad is transferred to the rotor, which is transferred to the wheel, to the tire; as well as thermal radiation from the proximity of the wheel to the rotor/brake assembly.
Hope this helps!