Why don't NASCAR cars have ABS brakes?
I wouldn't be surprised if some of them do/have had it. Anyway, ABS doesn't make you stop faster. It actually gives you less control over the car, and I'm pretty sure you can't turn if ABS is working and your braking hard, like you could without it. ABS is only there to prevent the wheels from locking under heavy braking pressure.
Do race-car drivers use ABS, TCS, or STM?
Those abbreviations you used are the exact ones used in the Forza Motorsport series of games. If that's how your question came about, I'd recommend looking at the leader boards. You'll find that most of the top 5% of times don't use any assists. If not, then here's your answer: ABS isn't used in racing because of it's design. In an ABS system, the brakes calipers grab the disc and release it several times a second to prevent lock-up. This can increase braking distance, something you don't want in a race. As far as traction control and stability management are concerned, your answer depends on the racing series. In Formula 1 and Australian V8 Supercars, they're strictly prohibited. In ALMS, it depends on the class. LMP cars are allowed a system which cuts ignition to slow the engine and thereby reduce wheelspin. GT2 cars can have a full system with sensors that measure wheel speed versus forward speed and use the brakes and/or suspension management to prevent loss of traction. The important bit to remember is that while all of these things can make an average Joe *appear* to be a better driver, they all slow you down in minute increments. In a sport where, even after 24 hours of racing, first and second place can be separated by less than a second, SLOWER IS BAD.
Why is ABS banned in some car races?
There are a couple reasons, but basically some teams have been cheating... Instead of a simple ABS, they actually have a partial traction control system (they are almost the same mechanically, the difference is mainly in the software). When the FIA caught it too many times, they banned the entire system. The whole idea of racing is driver vs. driver. All these "driver aid" systems (ABS, traction control, launch control, etc.) makes lousy drivers competitive, so it is more of a test of the budget of the racing team, not skill of the driver(s). Thus, FIA banned most driving aids. --- Kasey C, PC guru since Apple II days Don't take life too seriously; you won't get out alive.
Why do racing cars have wide tires?
The reason for wider tires is not that the increased contact area automatically leads to more friction (though there may be some effects that depend on the area indirectly). The design parameter that determines the coefficient of friction between the tires and the track is the something related to the molecular compressibility of the rubber. In other words, "the softer the rubber, the better the friction." However, when you use a softer rubber, you need to make the tires wide enough to give them strength. So, "the softer the tire, the wider it needs to be", to withstand design forces and moments.
Why doesnt NASCAR use ABS..?
Because NASCAR wants the driving to be 100% in the hands of the driver and not a computer.
Why does F1 race ban ABS system?
With ABS & TC, No more locking wheels in turns, later braking and more predictable brake wear, and removal of the pesky human errors! It was a boon for F1 engineers who could finally grantee 100% prediction rate w.r.t breaks and tires.ABS, along with Traction control, automatic gearbox, self adjusting suspension and Launch Control gizmos, was taking over the driving. All that was left to do for the driver was to point the car in the right direction and computer would compute everything from braking setup to power delivery, AOA for the flaps and wings, and even the amount of steering input required.Would you pay to see a race being driven by a computer?It removed the ‘talent’ of the driver from and placed it on the on-board computers, hence banned! (Rarely, this is one of the few decisions taken by FIA that i am on-board with.)FIA if you are reading: Bring the pit stop re-fueling back! it added the strategic complexity to the race which is now missing!
In the real world. Do race car drivers use assists [ABS, TCS, STM]?
It completely depends on the series, some series allow them, some don't. Most sports car series allow Traction control and some allow abs.That said, ABS and TC in a race setting are much different than in a street car. We have multiple maps and are changing them on the fly in response to conditions. They also do not ensure that a car doesn't get out of shape, they just allow us to commit slightly early to things, or protect the tires. Some times in the case of tc we can change how much slip we get laterally and longitudinally separately (obviously only works under power(Stability control is completely banned, but is also un wanted, none of them function to the point that it would be helpful for lap times.
Why don't race cars use anti-lock braking systems?
Generally because they’re not allowed to…Different race classes have different rules and restrictions on what you’re allowed to do with the car… The most common is a limitation on engine size, this is designed to improve the competition, make sure the performance levels of all the cars on the circuit are ‘roughly’ similar and making sure there’s not one single car 10 laps ahead of the rest of the field by the end of the race…ABS is banned in most series simply to make ‘driver ability’ more of a factor… The better drivers will end up profiting as they’ll be able to brake later without skidding…Sometimes restrictions are made simply in order to slow vehicles down - this got to be important in F1 during the 1980s and early 1990s when massive turbocharged engines were providing well over 1000 HP and the cars were getting too fast for the circuits - things were getting unsafe - i.e.: if the driver lost control at certain points on the circuits, there was insufficient space for the car to slow down before they hit the crowd, even using all the available space and sand-traps/tyre barriers.So, the organisers had a choice, either slow the cars down or rebuild all the circuits