Are the different brake discs worth it?
My question is this. Are the expensive $1000 two piece rotors like the Eradispeeds that much better than the cheaper one at half the price? For example, GM Performance, I think, offers a full set xdrilled brakes for around $400 or so. What is the advantage of the two piece design? Anyone had experience with them are really notice a difference? I'm sure that the improvement would be noted on a racetrack at some point, but is it ever realized on the street?





p.s. if you are concerned about rusting, make sure whichever rotors you buy are zinc coated. And do not use any brake or wheel cleaner on those zinc coated rotors because it will eat right through the coating.
Last edited by Icemanskis; Feb 21, 2005 at 02:56 PM.
For street driving, just go with the stock rotors and maybe upgrade the pads a notch.
If you want the bling of the two piece rotors and got the bucks gopher it, but you will not see any difference in braking on the street.
fade is a function of the pad and the possiable glazing of the rotor under high heat. More it is a pad issue, not a rotor issue.
The gassing off holes and slots, will only show up at the track under repeated extreme braking conditions.
If bling is not the issue the NAPA Rotors and a good set of Hawk HP street pads will take you anywhere you want to go.
You can spend thousands on bling and name.
2-pieced pinned ("floating rotors") definitely work, but they're only useful at the very extremes of braking performance.
BTW- Bolted 2-piece rotors are not the same as pinned. Pinned allows the rotor to float therefore expand and contract freely which allows for better contact with the pad and minimize any disk thickness variations. Bolts just save weight.
If you have a race-car where your going to do lap after lap of hard braking, yes they're good. They will allow for more consistent braking as the rotor heats up and cools off and the pad deposits on the rotor thickness.
Otherwise, No!
I've used them on street cars/auto-x cars, and I honestly admit it was a waste of my money. At the time I just didn't know any better.
For the a street-car, even one auto-crossed or tracked a basic high-quality rotor is just fine.
A quality rotor properly seasoned with properly bedded quality pads will work just great for your needs.
As for the weight savings, you can get a lot more weight savings else where for the money.
Last edited by Mighty-Mouse; Feb 21, 2005 at 03:03 PM.
mention the forum...get a discount..
my slotted were originally $330...mentioned the forum and got $50 off..
just FYI..have fun..

do you want rotors that stop your car only
do you want rotors that stop but rust?
do you want rotors that stop and don't rust
do you want rotors that make a statement..
a Timex and a Rolex both tell time...one tells time and the other is timeless..
your original post is not clear... bling means alot to some..
function means alot to some..
is bling worth 1000 dollars.. ? to some it does..
do they stop any better? No..
do they look better , yes..
why do people pay 5000 to 8000 dollars for wheels when they already have wheel that work...
So when you say Better.. you need to define what better means to you
do you want rotors that stop your car only
do you want rotors that stop but rust?
do you want rotors that stop and don't rust
do you want rotors that make a statement..
a Timex and a Rolex both tell time...one tells time and the other is timeless..
your original post is not clear... bling means alot to some..
function means alot to some..
is bling worth 1000 dollars.. ? to some it does..
do they stop any better? No..
do they look better , yes..
why do people pay 5000 to 8000 dollars for wheels when they already have wheel that work...
So when you say Better.. you need to define what better means to you
nicely put...
The Best of Corvette for Corvette Enthusiasts


Is this a main issue with others here? I'm leaning toward the two piece Eradispeeds just for the max chance that I won't have warped pulsing brakes that have to have repeated service dollars thrown at them repeatedly.

Is this a main issue with others here? I'm leaning toward the two piece Eradispeeds just for the max chance that I won't have warped pulsing brakes that have to have repeated service dollars thrown at them repeatedly.


When I put the 14 inch Baers on the rear, I raised it up. It looks better like this.
the "Cast In" holes are cracked

Every one has different needs. I need to stop WHEN I NEED TO STOP. We who use the brakes hard find the D/S or holes that are cast in the rotor last shortter time then normal rotors.
raybestos rotors at $25 each for track time
Thanks E-T. The old "picture worth a thousand words" - priceless!
the "Cast In" holes are cracked

From the Baer website:







