Are these ant better? I have always heard they crack and really are more for looks.. I am getting ready to do a brake job and my rotors have been turned before and I do not think they will be able to turn again. So while I am spending the money on new rotors the question is "should I buy brembro replacements or another brand x or slotted?? Thanks, Mike

 

come on guys I need a little feed back before I spend $$ Here!!!!

 

Mike,

This topic has been discussed ad nauseum on here, so people are tired of posting about it. At least you didn't get a bunch of friendly "do a search" messages.

It is mostly for looks. Crossdrilled give a little better bite. Slotted keep the pad surface clean for consistent performance. But they are prone to cracking under extreme conditions (road racing). For everything else they are probably fine. Crossdrilled are more prone to cracking than slotted.

For more info, do a search.

-Max

 

get slotted, the crossdrilled rotors crack easier.

 

I always opted for the original Mazda rotors...never had any trouble with them with regard to pad vibration or shudder...

 

anyone know where to get just the slotted rear rotors for cheap? i bought some fronts but can't find the rears.

 

Thanks Max, I have read a few posts on rotors but I wanted to here from some experienced racers (or weekend racers). I believe I will pass on slotted and x-drilled. I am just going to get stock replacements.

 

Here is an interesting tidbit about slotted rotors. I have them on my car, and just got back from the mazda driver's school down in Virginia at VIR. I burned up my EBC green stuff pads, and ended up on the backing plates. I never heard the squeakers, and those pads had them. Examining the remains, i found the squeakers had been snapped off. My theory is that when they got worn down enough, the squeaker caught on a slot and got sheared right off, so I never heard them.

Lessons learned:

EBC green pads are not good circuit conditions once you are moderately comfortable with fast driving and really had braking

metal backing plates actually stop the car VERY WELL! but they are hell on your rotors.

at track events, inspect your pads after every run!

 

That's a couple no-go votes on the EBCs green and red stuff pads for circuit use...

I haven't tried the Greenstuffs on track, but I did burn up Redstuffs really quickly! I'm just glad I'm not the only one with negative reviews of the EBCs.

The Greenstuffs are probably fine for public road and enthusiastic drives through the mountains...

 

Yeah the ebc's were great on the street and for autox. Stay away for circuit tho. One guy was running on hawk blues and recommending that I get a set.

 

you might want to stay away from the hawk blues. Even though they are a very good set of pads, they will destroy your rotors very quickly... there's one guy i know who went through a set of pads and rotors every two track events while running hawks. Also the brake dust that they give out will stain your nice wheels too.

Try looking into the project mu B-force or Titan, they are very nice pads with nice pedal feel and they don't have any of the previously mentioned side effects.

 

great, i just got my ebc greens in..

 

hey, no worries, like I said, they were great on the street and autox. Just stay away from the racetrack with them and you'll be fine.

 

Sometimes stock Is the onlt way to go. I contemplated getting x- drilled myself.

 

Carrera's come with x-drilled rotors stock for a reason: they vent pad burn off gasses very well, reducing fade. Cross drilled/slotted rotors will obviously have structural issues, since structure has been removed from them. What do you want, long lasting rotors, or quick stopping rotors.

 

Carrera rotors are bigger, too, so they can spare some material to holes. They are also said to have "cast-in" rather than drilled holes, which is supposed to reduce the stresses and reduce the chances of cracking. Drilled are supposed to give better bite and they certainly look better, which may be the reasons the Carrera has them.

Pad outgassing is not really an issue with modern pads from what I have read. It was in the past, but recent compounds don't really outgas much.

-Max

 

what about dippled/slotted??? So the cross drilled are fine for the street??

 

Crossdrilled are fine for the street. Dimpled and slotted are probably stronger, and would fare better at the track than drilled, but either would be fine for the street. If you aren't going to road race (drive on a track), get the ones that look best to you.

-Max