Oh, the silliness that genuine car enthusiasts get for upgrading their cars, even when the mod is perfectly logical and generates very significant increase in performance. Lack of of fade under hard use is always a good thing. Improved pedal feel and better wear thanks to quality stainless steel brake lines and 4-6pot calipers are a great bonus. The ability to fill in those 18 inch wheels shod with sticky 235/40/18 tires is just a bonus in addition to the improved overall braking performance.
Brake overheating causes as great a problem, if not greater, than actual brake wear. Be it brake fluid overheating to near boling point and the bubbles having a serious effect on the efficiency of the hydraulic system, or resin in pads melting, which would give the glazing effect you see. Neither of these things is wear per se, but unfortunately I reckon you need a variable resistance brake pedal for these things to work properly in a sim. How else would you be able to determine if the pedal feels soft.
road cars should start the race with good braking power that fades if the brakes get hot.
race cars should start the race with poor to moderate braking power that improves as the brakes warm up to operating temperature, and should only fade if they get very, very hot.
complete failure should also be possible following a collision that in real life might cause a hydraulic fluid leak.
Even huge FEM-simulations that take days to calculate on super-computers don't produce real brake-squeel behaviour. Many major car manufacturers tried it, but not a single virtual brake ever squeeled similarly as a real brake.
It's just not known to mankind how the geometry of a brake, temperature and speed work together to cause brake-squeel. If Scawen managed to approximate the squeeling behaviour of a brake accurately he'd be the first in the world.
That said, I'd appreciate a simple model that involves random factors a lot.
It's because they have mandatory refuelling and tyre changes in the other races, so for the enduros they have to make a mandatory brake pad change. What next, mandatory engine change
Brake rotors on high performance cars are made to wear faster,
I know, I changed a set last week because of it. I also changed the pads.
The brake pads actualy eat away at the rotors and constantly make them thinner, this isn't as exessive as it sounds but its fast enough to warrant changing them regularly, in some cases, mostly with full out race cars, every race.
This means that the surface of the rotor is constantly trued, now how does a "flat"(relatively) surface make a squeal when another flat surface makes contact? Because both surfaces are flat.
The edges of the pads on high performance brakes are champfered, but it doesn't take long for that to go away, after they become flat they are contacting the rotor with sharp edges, these edges bite into the material of the rotor and cause vibration, sound is vibration, so you get brake squeal. even with the bevel still there, cold brakes tend to squeal because the hardness is higher when the brakes are cold, so there is a short time between when they heat up to optimal temperature and when they lose the chamfer that they don't squeal.
I have drum brakes on my Motorbike, and they squeal when they are cold, however, after a while of riding it, I have noticed they squeal even when warm now. The edges of the shoes are not chamfered any more.
When I replace brakes on a road car, if the customer chooses cheap brakes, I was always taught to bevel them if they don't come that way, So the customer woulden't complain about squeal when he starts driving after the car was cold. Infact, even the high performance brakes I changed wheren't beveled, but they where OE pads, so I installed them without modifying them. They squealed when we pulled the car out of the shop.
The main focus in designing high-performance brake rotors is not to make them wear faster, but to provide better stopping power. Were those rotors you replaced steel, or ceramic-composite?
The reason they wear faster is because if both materials wear at relitively the same speed, they provide better stopping power, if you use hard steel the pads will glide across the rotors, if you use a softer steel or another material that wears faster, than the pads will bite into the rotor and provide greater stopping power.
But yes, they where steel, the owner of the car got the "Mid range" package for the rotors, but opted up to the high quality pads.
The car wasn't going to be used for intense racing, they just wanted to be able to stop if they decided to speed a bit.
but everything was Brembo high performance, even the original parts we took off.
Hmm, I didn't realize that brake rotors were made out of so many different alloys. I just did some searching on Google, and there are so many different kinds of brake rotors.
It's not realy part of my job (yet), But I've been doing alot of research on alot of different aspects of cars and how they work, I've done research on everything from Engine braking to turbo chargers.
If I haven't researched it yet, I will have before I'm done.