uh is there a way to tell if they are truely brembo rotors or if somebody just put them in a brembo box?

No serial numbers to check out ??

failing that I'd go to a shop and look at Brembo rotors and then compare them with the ones in question.

Brembo rotors have the Brembo logo and name machined into them.



There's one of my ST184 rotors.

Brembo also makes a cross drilled rotor. When coomer said that the brembo rotors have brembo on the side i looked at my cross drilled ones, and sure enough it does say brembo on them. But i can't get a pic i've ben trying to get a pic of the brembo on the sides. But it comes out blury.

i dont believe brembo makes cross drilled rotors for the 6gc. i think someone else drills them.

Nah brembo takes there stock replacement rotors and drills them..

I want to see it in their product list then. I'm not saying you're wrong I've just never seen proof.

ya understandable. But if someone tried to drill a rotor themself it would come out ruff as crap and would never work right. these holes are perfect. and not ruff at all. if you want i'll try and get a pic like coomers. and show they say brembo on them and show how smooth the holes are.

>

You should...and make sure you get the part number in the picture. It's a five-digit number I believe.

K. i'll try. so far everytime i take one it gets blury. but i'll keep trying
But while im looking at yours coomer. Mine is a little diff. it says this.

12 02 A AA MINTH 26 MM and then says brembo. Doesn't have the numbers after brembo.??

Here is a pic. Not very good but u can see what it all says on the rotor.\



This post has been edited by celiracer: Feb 7, 2006 - 10:47 AM

brembo make drill rotors and slotted. they do not make cross drilled and slotted. when you see a brembo brake kit with both cross drilled and slotted. this means the owner got the rotors custom drilled.

ya Mine in the pic above. Are there brembo cross drilled rotors.

thanks for the info! i'll check that out when i pick it up tmr night

er.. on the side of one of my rear rotors it says:

02 04 D A MIN TH 9 MM... is that the right size for a 98 gt?

on the brembo site it says for the rear the min thickness is 8mm..

>
That's okay, 9mm is bigger than 8mm

A lot of people can cross-drill and slot rotors near OEM finish, it depends on the equipment. It's not necessarily cheap to get rotors slotted or cross-drilled.

keep in mind that cross drilled and slotted rotors are more abrasive then either or.

cross drilled and slotted-very abrasive
drilled- abrasive
slotted- not so abrasive

this just means that you feel more "friction" on the brake pedal.

>
Also means you go through pads a helluva lot faster

>
this is true, the reason is because the slots also clean the break pads when you press the brakes

This post has been edited by lilsteeg: Feb 11, 2006 - 9:37 PM

but can they warp faster then normal rotors?

>

this has some truths to it since it depends on the pad quality. drilled/slotted rotors are made to disperse heat caused by friction. with less heat on the pads and rotors the longer the pad and rotor life.

now this brings into questions about big brakes. many people say that it is not needed unless you are pushing high HP. this is very true since more "wheel power" will need more stopping power. now big brakes can be very useful for everyday cars too. the life of the brakes will last alot longer since you will not need that many rotor rotations to stop the car.

for example, if it takes 20 rotations with the caliper engaged to the rotor to stop your car going from 45mph-0mph. it would take about 8-10 rotations with a big brake.

now most if not all muti-piece rotors come with heat dispersement fins between the rotors these fins help the travel of heat caused by friction hence longer rotors/pad life

>


warping all depends on quality and how you "break" the rotor in. aftermarket "performance" rotors will require you to give it a break in period, like a clutch.

this just means you should not slam on the breaks and so forth. there are proper ways to break in rotors.

examples would be:

-"hot-spotting"- this means that you should not leave the caliper engaged even when you are fully stopped (use e-brake).

-"slow"- means give yourself enough time to slow down and let the car roll to a stop.

-"warm up"- on a cold day use the brake at ease until "warmed"

there are a few more that are very common like spraying water on a hot rotor etc...

"hot spotting" and "slow" is to prevent "heat holding" on one area of a new rotor preventing it to warp. "warm up" is to prevent the rotor to from getting hot too fast.