asherwood

How About these brake rotors?

http://cgi.ebay.com/ebaymotors/ws/e...item=7905079111

Wow that is a good price for a set of 4 rotors! I wonder who makes their blanks?

Take a look at these, more expensive, but they are Brembo.

http://cgi.ebay.com/ebaymotors/ws/eB...MEWA%3AIT&rd=1

And now the plating concern, when I made the inquirey about the Brembo rotors they said that zinc plating made them slippery and did not recommend it.

So what do you guys think, I don't want these things to rust after going through this expense.

So, plating or not, Brembo or not? Drilling and slotting or not?

Thanks for your thoughts and experiances!

RETed

http://fc3spro.com/TECH/MODS/BRAKES/rotors.htm

-Ted

jacobcartmill

iTrader: (6)

slotted is the pizimp shizit

sunshine

iTrader: (3)

http://www.stoptech.com/faq/data/faq15.html

sunshine

iTrader: (3)

*double post*

asherwood

I thought that this would be an inexpensive way to gain a little braking performance, clean up the rusted rotors and improve the looks at each corner of the car!

Now, with the posts above drilling seems like a bad idea and slots although less prone to problems are not necessary for a street only car.

So I guess the drilled AND slotted is definitly out?

So for the one last question, will putting a set of these on my car be a bad idea, remembering that only see's spirited street driving no track time. Sort of just a cosmetic improvement?

Thanks!

asherwood

So...not much of a response to these questions!

How about this then:

Does anybody run :

1) Drilled rotors
2) Slotted rotors
3) no rotors at all! (trick question!)
4) or just plain old boring stock rotors

sunshine

iTrader: (3)

I got slotted up front, and drilled in the back. In retrospect, I would have gotten the slotted for the rear also.

NA2TurboProject

look at all the high performance cars i.e. porsche. Why dont they run non slotted/drilled rotors? must be good for something!

sunshine

iTrader: (3)

They run those for two reasons:
1) those give huge bling factor to the car. and the guy paying 6 figures wants the bling.

2) If you check the prices on replacement porsche rotors you will find that they are mad pricey. Why? because they are case with the holes already part of the rotor. The cheap crossdrilled rotors that are available for our cars are actually drilled into the rotor fromn a solid rotor. For example - KVR uses a solid brembo rotor, and drils the hole in-house.

-a

RETed

I guess people are too lazy to click links and read.


-Ted

EfiniGirl

with brake performance you are concerned about one thing : brake fade (not stopping distance - thats determined by your tires and bias). brake fade happens when your rotors get super hot and for a variety of reasons can't grip against the pads as well anymore. cross drilling and slotting are supposedly ways to counter this. slotting is supposed to help with pad glazing (which no longer happens with modern pads) and cross drilling supposedly is a way to increase surface area / air flow and cool the rotor faster.

however, what you're really doing with x-drill and slotting is taking mass away from the rotor and reducing the total amount of heat it can absorb. slotting is a waste as modern pads are made of different materials and don't glaze nearly as easily (or at all). on top of this, drilling holes and grooves into the rotor reduces its structural integrity (+ super hot =cracking and catastrophic failure aaaah!). as someone b4 mentioned the high end rotors are different, they are forged/manufactured with the holes in them already.

in other words, nowadays its mostly for bling. get some blanks and some performance pads with good bite and u should be good to go.

http://fc3spro.com/TECH/MODS/BRAKES/rotors.htm

read the link RET posted.

asherwood

Quite contrary Ted, I did read the links, you can tell by my posted reply. I just was curious who here opted for these rotors, possibly just for looks. And now that they have, what do they think.

Another factor for some of us is a limited budget to "try" these things out, so we solicit feed back from someone who has tried them.

I thought that was what a forum was all about?

BDoty311

Well heres a good question. I have cross drilled rotors on my car with metal master brake pads, and they have enough braking power to lock up the tires at 90mph. They brake too damn good. My question is why is that? I didn't realize brake pads alone could make THAT much of a difference.

carbonic

The plating will be rubbed off by the brake pads anyways. It can prevent rust on the untouched areas though.

ponykiller

Hey Brian,

Locking up your wheels at 90mph and at 25 mph takes the exact same amount of force. What determines braking ability is your tires, not so much the brakes (they will give different feel, and can reduce fade as mentioned above).

pinkfloyd

what about the big break kit. i cant seem to find it. its like 1k or somethign???????

Rookie84

www.k2rd.com


To the original poster, if you're looking for street performance, stock rotors with high performance brake pads are just fine. Cross drilled rotors are pieces of **** and they tend to crack. Slotted is good, but I hear they eat the pads pretty quickly.

BDoty311

Ok, I guess that makes sense. It just seems that the AE can lock up the wheels a lot easier than the n/a. The N/a does have less grippier pads, stickier tires, and a few hundred pounds less weight to push.

Sounds like its time to get some new tires on the AE!!

Snrub

iTrader: (1)

Regarding the need for more than the stock brakes due to fade, I have a tesitmonial page:
www.geocities.com/jeffguilfoil/brakes.html
Somehow I don't think anyone will look at this one either.

I think when these brake questions come up we should provice a link to www.apc.com because they'll have everything that person will ever need for their car.

Dak

I've been noticing that most race cars seem to be using slotted now so that to me is an indication of which is better.From everything I've read including the links in this thread cross drilled crack over time so I would go with slotted.I would imagine that a person wouldn't see much difference between stock and slotted/cross drilled on the street(though I still have stock rotors this is just a guess).Larger rotors is where I believe a person would get a real increase in performance.

pinkfloyd

I cant get the web site up at all.

pinkfloyd

I cant get the web site up at all.

coldfire

iTrader: (1)

drilled rotors are more or less useless, unless they are stock OE with the car, i.e. Porsche.

slotted rotors provide no better cooling, but as mentioned in those links, can provide slightly better 'bite'. this is dependent on the type of pad you are using. i would guess that a harder compound, such as a metal or carbon type pad, will benefit more from this.

also, it should be noted that race cars will use slotted rotors to get up to operating temperatures quicker. not exactly sure how that works, i guess has to do with improved friction characteristics...
also, never get rotors that are slotted radially outwards, or all the way to the edge. this usually indicates a cheap slotted rotor job.

oh yeah, i think it is worth mentioning that if you are looking for a good performance gain with the brake system, and want to change your rotors, consider replacing your solid rotors to vented, if you don't have them already...much better heat disappation. and keep those stock brake vents clear, they actually work pretty good, in an unofficial test i did

ponykiller

Scott had a nice brake setup on that car, which is why you are finding it so easy to lock up the wheels - not to mention the harder compound tires giving you less grip.

Some more info for you to store away: more weight does not equal longer stopping distances - it will only affect your acceleration. I could give you the equations to prove it, but I will just let you consider that a motorcycle weighing 450 pounds will stop in roughly the same distance as your car.