Quote:
Originally Posted by ZM2
If you could threshold brake right at the limit of adhesion every corner, every lap, you would be quicker. But, that’s impossible due to constantly changing track and tire conditions, and modern ABS will react quicker than a human to a tire starting to lock up. So, using the ABS when it kicks in is quicker than resetting.
However, slamming the brakes and using the ABS every time will overwork and overheat the calipers and fluid, and you’ll get fade, burnt dust boots, etc, even with track pads and fluid.
Since I race older BMWs with not nearly as good ABS as the M2, I try to stick with threshold braking. If ABS kicks in, I go ahead and use it for that braking event, vs resetting, and try to threshold the next time around.
So, a hybrid approach. That way, you’re still training your brain and foot to detect threshold, and you’re not overworking the braking system.
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I run track pads (Pagid RS29), proper track fluid and live in ABS as I have been taught by the professionals. Comparing the braking data between track pads and OEM shows I spend far less time on the brakes with track pads. The calipers do change color over time because of the heat and yes the rubber boots brake down but neither of those things are a result of ABS braking they are because of the heat generated braking hard ABS or not you will generate tremendous heat with a 3300 plus lb car pushing towards 400 hp. I run 20 min sessions at a very respectable pace with Cup2 tires, the key to not developing fade is all in the prep. ABS systems are widely used in sports car racing because they work, you should use the system that is developed for this purpose.
Of course old ABS and traction control systems are totally different animals than these modern systems.