Drilled/slotted rotors, crappy and waste of money

[Nocturnal]

link (http://corner-carvers.com/altimathread.php.html)

fortunately more and more people are getting the idea. drilled or slotted rotors are a waste of money, and actually do not work as well as an equal size blank rotor.

[bismarksinker]

this is extremely true
but i do have to say that there are cars out there that require slotted discs
for example german cars (audi, bmw, mercedes) are known for the extreme amount of brake dust that they give off so they need the slotted discs
another example would be my '71 chevelle
that thing has 450 horses and shreds pads like a beast so i need the slots to get rid of the dust

[Nocturnal]

I would think that a set of good aftermarket pads would do wonders for that.

[GM Girlz]

LOL@nocturnal..... good one hon.
For the regular econmy car after market pads are great..
Unlike for some cars the what we call " sloted or drilled" roters are good for some cars.
civics and other cars that are done up to look nice will have these upgrads, but dont work to the fullest potental they can posses.

ahhhhhhhhhhh in answer it can be a waste of money and not work. (CAN)

[Nocturnal]

your post is a little unclear but I think you are agreeing with me.

those stupid ricecars don't have anything functional, why should they keep the brakeing system it top working order.... lol

[Dins]

:D:D:D:D
good point

[GM Girlz]

Yes Nocturnal i was agreeing with you to the fullest.
And ill agree with you agian..why bother with the breaking system when the rest of the car needs the money. LOL

[wheeley]

Installed drilled & slotted on all 4 corners other then the tell tale hum you get they been kick a$$

[PitwrkzZ1]

This thread is 4 years old.

[Don Juan]

Holy necropost Batman!

[drjay]

lol holy crap, I had to go to the very last (first technically) page to find posts as old as this. What...tha...fuuuuck.

More to the point, the author lost credibility the first paragraph when he said drilled rotors are to dissipate heat. No, that's what vented rotors are for. Drilled rotors are to allow gasses that form between the pad and rotor to escape.

Of course I can't be upset, considering the age of this thread he might have been referring to them new fangled model-a brakes.

[elliott678]

More to the point, the author lost credibility the first paragraph when he said drilled rotors are to dissipate heat. No, that's what vented rotors are for. Drilled rotors are to allow gasses that form between the pad and rotor to escape.Modern DOT legal pads don't outgas nearly enough to make the decreased surface area worth it.

[drjay]

Modern DOT legal pads don't outgas nearly enough to make the decreased surface area worth it.

huh?...I wasn't talking about their necessity, I was talking about what the drilled rotors are for. Necessary or not, drilled rotors are not for cooling, as the author had mentioned they were.

[elliott678]

He made a bad point, doesn't mean his whole argument is flawed.

[Steeda]

noob strikes again!

[Wip3ou7xL]

Hmm I have slotted rotors... ATE PremiumOne... the box advertises the purpose of the slots as "Patented RotorLife Infinity-Slotted Wear Indicator".

[elliott678]

So when the slots are gone the rotors are worn out? That is better done by a micrometer....at least a micrometer doesn't cause problems.

[drjay]

He made a bad point, doesn't mean his whole argument is flawed.

Not trying to argue here but yes, the rest of his argument is flawed.

His points:

a)They rock
b)They look awesome
c)NO SQUEALING, NONE, NONE, WHATSOEVER NO SQUEALING
d)Did I tell you they look awesome
e)Increased stopping power

A, B, and D are subjective and can't really be debated. Although E is either not true or only because his previous setup had problems. You should know as well as I do that drilling and slotting rotors decreases the surface area and will reduce braking performance. It's certainly possible he found a combination that works better than his previous setup, but the basis for his statements were about drilling and slotting the rotors which is counter to his better performance argument.

Also, as for no squealing, that's generally attributed to the pads. Much of the time it is because the pads are outside of their operating temperature. That's why race pads will squeel when driving around town but quiet down considerably once warmed up.

[elliott678]

Wait, wasn't he against them? I am very against them, I've seen the cracks and know the whole surface area thing, hell there is an Impala SS thread here with my rant against them somewhere, which I seem to remember being called an asshole for.

Shit, just read the thread correctly, didn't mean to defend him.

[drjay]

Shit, just read the thread correctly, didn't mean to defend him.

lol. it happens :)