I've been looking for the braking torque for modern professional race cars so I can keep any modifications I make in BeamNG within IRL limits, but my Internet seaches keep showing up with either the equations, or just "our product has high braking torque" sorts of stuff. Does anyone know what the braking torque for modern professional track-based race cars are (i.e. V8 Supercars, superGT cars, and the like)? It doesn't seem like it would be one of those team secrets.
Whatever you think you can use without locking up? At a Porsche club race I was at, one driver complained about another drivers larger brake rotors to the head tech scrutineer. The official told the driver "what's wrong? Your pissed that he's late braking on you?" He ended up telling the guy to drive better. I don't think you should worry about brake torque beyond having enough to use all the tires grip under full brake.
Technically, if you have the weight of the car, the distance traveled under full braking, the time it took, the initial velocity (assuming to a full stop) the radius of the tires, and finally the radius to the caliper, you could calculate the brake torque from any real life car. However, like amarks240 said, I wouldn't really worry about it to much. Take your car out onto the road... get some good speed up... and then use about 70 to 80 percent pedal... do your brakes lock up? If so, then you probably have them tuned a bit to strong... if the car is struggling for traction but still holds grip, then I would say you have it right about perfect. For a race car anyways.
