Im looking at buying some new rotors for my front brakes, and was wondering how good are the powerstop cross driller/slotted rotors my friend bought em for $120 for the pair which is a good price to me, so im thinkin about doin it.....I think it looks phat and also it gets like 95 degrees here this week and the brakes will run smoother and cooler i think with the rotors. Last question (not too knowledageble about brake systems) can these rotors run on the stock 16" wheels?
cross drill vent heat better. They all are the same old same you know... powerstop is fairely good... brembo is overpriced rotors for what it's selling... unless you get the 4/6 piston calipers, that's where all the stopping powers are at. that and the brake lines...
Im running AEM ceramic pads and Powerslot rotors..They are the SHIZNIT!!! , Oh, but I am running the Goodridge stainless lines too... They stop MUCH faster than OE....Youwont be disappointed!
after reading it, you will find that buying xdrilled and slotted rotors are a waste of money... unless your current OE rotors are warped or something is wrong with them, you are better off just getting better pads... but xdrilled and slotted rotors WILL NOT make you brake faster, as many people believe... if you want to stop faster, get larger calipers and better pads... xdrilled and slotted rotors are mostly for aesthetics.
Originally posted by screamer5300 cross drill vent heat better. They all are the same old same you know... powerstop is fairely good... brembo is overpriced rotors for what it's selling... unless you get the 4/6 piston calipers, that's where all the stopping powers are at. that and the brake lines...
cross drilled rotors were developed in the 40s and 50s when brake pad materials were not as advanced as today's materials. when braking really hard, the pads would heat up and form a gas layer inbetween the pad surface and the rotor, making a lubricated-by-gas surface between the pad and the rotor. the holes were made so the gas could escape and brake fade would be reduced.
and cross drilled or slotted rotors DO NOT run cooler... but read the articles in the above post... he has a very good explanation for everything.
I read it and somethings I believe and somethings I don't. Some of these intenet postings are bias with no credential.
Why do you think porche 911's use cross drilled rotors? for looks?
I don't think german engineers are really concerned with the look of the thing, that's the designers job.
cross drill rotors work because they do vent heat and also metalic break particles as well. By physics, bigger rotors stop better, but the caliper pistons help tremendously. instead of having 2points force on pressure, there are 4 to 6 points forcing pressure/distributing it well on the caliper.
brake pads help stop too, very much. all the brake components are essential for the break system to work. I don't think you need to spend a lot of money on preludes, as far as break systems go, because it doesn't create as much power as porches or other high power sports cars. the system on the current preludes are well qualified to help it stop quick.
just like everything, More power = More braking power
after reading it, you will find that buying xdrilled and slotted rotors are a waste of money... unless your current OE rotors are warped or something is wrong with them, you are better off just getting better pads... but xdrilled and slotted rotors WILL NOT make you brake faster, as many people believe... if you want to stop faster, get larger calipers and better pads... xdrilled and slotted rotors are mostly for aesthetics.
-colin
Uh the article does say that the slotted rotors keep the face of the pad cleaner, thus reducing the friction property, THUS allowing you to stop quicker. As long as the slots are done properly.....
And even before I had my goodridge lines, I could tell that the setup was reducing my stopping distance. It'd grab quicker and stop quicker.....
Plus the Powerslots are just about the same price as OE replacements! Even if you go aftermarket (Raybestos/Wagner) the powerslots are same price. Nothing to lose bro!
"At the heart of the new technology is a ceramic brake disc made of specially treated carbon fiber silicated in a high-vacuum process at approximately 1,700ΒΊ C. The PCCB disc is cross-drilled and internally vented, and is approximately 50% lighter than conventional alternatives. Since this weight is unsprung, i.e., not supported by the suspension, PCCB automatically improves agility and handling."
btw slotted and xdrilled rotors tend to crack... so there is something to lose... such as braking.
dont believe me?
powerslots:
drilled porsche rotor:
not to mention the numerous brembos rotors cracking on the cobra mustangs...
drilled/slotted rotors crack under heavy usage... it has to get hot enough before they'll crack... such as on a road course or MAYBE autox... so if you arent going to be braking hard, you probably won't see any cracking... i'm just trying to give you guys the heads up... the decision to buy is yours.
Originally posted by Phryxis drilled/slotted rotors crack under heavy usage... it has to get hot enough before they'll crack... such as on a road course or MAYBE autox... so if you arent going to be braking hard, you probably won't see any cracking... i'm just trying to give you guys the heads up... the decision to buy is yours.
-colin
2 track events and more than a handful of autocrosses in the past year or so -- no cracks.
"At the heart of the new technology is a ceramic brake disc made of specially treated carbon fiber silicated in a high-vacuum process at approximately 1,700ΒΊ C. The PCCB disc is cross-drilled and internally vented, and is approximately 50% lighter than conventional alternatives. Since this weight is unsprung, i.e., not supported by the suspension, PCCB automatically improves agility and handling."
The reason why the brakes weigh half as much is because of the ceramic material used, not because of the cross drilling.
As for the Prelude, unless you are doing some serious racing, cross drilling and/or slotting is just for looks.
Originally posted by ktownogg porsches use it to reduce unsprung weight...
from porsche's site:
"At the heart of the new technology is a ceramic brake disc made of specially treated carbon fiber silicated in a high-vacuum process at approximately 1,700ΒΊ C. The PCCB disc is cross-drilled and internally vented, and is approximately 50% lighter than conventional alternatives. Since this weight is unsprung, i.e., not supported by the suspension, PCCB automatically improves agility and handling."
The reason why the brakes weigh half as much is because of the ceramic material used, not because of the cross drilling.
As for the Prelude, unless you are doing some serious racing, cross drilling and/or slotting is just for looks.
it's a combination of drilling and the light materials...
drilling/slotting is for looks even when you're doing some serious racing... it has almost no benefits over the OE rotor...
if there are some people here to prove that their rotors never cracked or havent even cracked, while there are others that can prove they can crack it could just be on how a person drives and also the quality of the rotor, some companies could of did something wrong in making their rotor to cause them to crack after heavy braking and their other rotors to top quality but i think it basically depends on how a person drives using their rotors
if this is making a big deal out of it you should just stick with some stock rotors, which in my point of view is a waste of money cause i think xdrilled/slotted or just slotted rotors are worth it
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stay away from cross drilled and go with Slotted.
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