that's the only way to rule the rotor out!!!!
Eradispeed and hawk pads ...shake
Pro
Joined: Feb 2007
Posts: 741
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From: Kennesaw GA
Drifting
Joined: Sep 2007
Posts: 1,283
Likes: 7
From: Hurst (Fort Worth area) Texas
St. Jude Donor '09
[QUOTE=Silverspeed;1569328687]I have the Eradispeeds as well and they do the EXACT same thing. QUOTE]
Dang... I can't believe that you are still using these rotors! Haven't you been having this problem for over a year by now?
I hope that my experience turns out to be better than yours... I have ordered slotted only (no cross drilled holes) EradiSpeed "Plus 2" rotors all 'round for my car. I'm going to have them "cryo'ed" before installation... maybe I'll be luckier than you were... and at a grand for a set, I certainly understand your disappointment!
Dang... I can't believe that you are still using these rotors! Haven't you been having this problem for over a year by now?
I hope that my experience turns out to be better than yours... I have ordered slotted only (no cross drilled holes) EradiSpeed "Plus 2" rotors all 'round for my car. I'm going to have them "cryo'ed" before installation... maybe I'll be luckier than you were... and at a grand for a set, I certainly understand your disappointment!
Team Owner
Joined: Jan 2007
Posts: 22,136
Likes: 23
From: In the woods looking for my thrown putter.
St. Jude Donor '13, '15
[QUOTE=RFP;1569337974][QUOTE=Silverspeed;1569328687]I have the Eradispeeds as well and they do the EXACT same thing.
Dang... I can't believe that you are still using these rotors! Haven't you been having this problem for over a year by now?
I hope that my experience turns out to be better than yours... I have ordered slotted only (no cross drilled holes) EradiSpeed "Plus 2" rotors all 'round for my car. I'm going to have them "cryo'ed" before installation... maybe I'll be luckier than you were... and at a grand for a set, I certainly understand your disappointment!
Yep, sure have. I've just been too lazy to get them fixed or find out exactly what the problem is. I never thought about the dial indicator, will definitely do that to find out which is warped. My problem doesn't get any worse, or better. I didn't even know the slotted only were available, or I would have gone that route without a second thought. Cross drilled rotors are worthless. I can't believe mine have stress cracks, because they have never seen repeated hard braking.
Anyone know what is considered accepted runout for brake rotors?
Dang... I can't believe that you are still using these rotors! Haven't you been having this problem for over a year by now?
I hope that my experience turns out to be better than yours... I have ordered slotted only (no cross drilled holes) EradiSpeed "Plus 2" rotors all 'round for my car. I'm going to have them "cryo'ed" before installation... maybe I'll be luckier than you were... and at a grand for a set, I certainly understand your disappointment!
Yep, sure have. I've just been too lazy to get them fixed or find out exactly what the problem is. I never thought about the dial indicator, will definitely do that to find out which is warped. My problem doesn't get any worse, or better. I didn't even know the slotted only were available, or I would have gone that route without a second thought. Cross drilled rotors are worthless. I can't believe mine have stress cracks, because they have never seen repeated hard braking.
Anyone know what is considered accepted runout for brake rotors?
Drifting
Joined: Sep 2007
Posts: 1,283
Likes: 7
From: Hurst (Fort Worth area) Texas
St. Jude Donor '09
[QUOTE=Silverspeed;1569340561][QUOTE=RFP;1569337974]
Yes, Jarod, the BAER "slotted only" are a special order, but that presents no problem... just adds a week or so to the lead time.
I suppose that if you determine that yours are actually warped, you could buy slotted only rotors (just the rotors, not the whole rotor & hat assembly) and bolt 'em up to your BAER aluminum "hats." But, I'm sure that you have already thought of that option.
I'm curious, did you "bed" the new rotors when you installed them? I guess that what I'm really asking about what you did as compared to these instructions from our friends at Zeckhausen...
http://www.zeckhausen.com/bedding_in_brakes.htm
BAER is good stuff... I'm really sorry that you have had such a nightmare!
I have the Eradispeeds as well and they do the EXACT same thing.
Yep, sure have. I've just been too lazy to get them fixed or find out exactly what the problem is. I never thought about the dial indicator, will definitely do that to find out which is warped. My problem doesn't get any worse, or better. I didn't even know the slotted only were available, or I would have gone that route without a second thought. Cross drilled rotors are worthless. I can't believe mine have stress cracks, because they have never seen repeated hard braking.
Anyone know what is considered accepted runout for brake rotors?
Yep, sure have. I've just been too lazy to get them fixed or find out exactly what the problem is. I never thought about the dial indicator, will definitely do that to find out which is warped. My problem doesn't get any worse, or better. I didn't even know the slotted only were available, or I would have gone that route without a second thought. Cross drilled rotors are worthless. I can't believe mine have stress cracks, because they have never seen repeated hard braking.
Anyone know what is considered accepted runout for brake rotors?
I suppose that if you determine that yours are actually warped, you could buy slotted only rotors (just the rotors, not the whole rotor & hat assembly) and bolt 'em up to your BAER aluminum "hats." But, I'm sure that you have already thought of that option.
I'm curious, did you "bed" the new rotors when you installed them? I guess that what I'm really asking about what you did as compared to these instructions from our friends at Zeckhausen...
http://www.zeckhausen.com/bedding_in_brakes.htm
BAER is good stuff... I'm really sorry that you have had such a nightmare!
Drifting
Joined: Sep 2007
Posts: 1,283
Likes: 7
From: Hurst (Fort Worth area) Texas
St. Jude Donor '09
Excellent reading on brakes !
I dug around and [finally] found this... very informative...
It's a StopTech "White Paper" titled, "The 'Warped' Brake Discs and Other Myths of thge Braking System"
http://www.stoptech.com/tech_info/wp...rakedisk.shtml
It's a StopTech "White Paper" titled, "The 'Warped' Brake Discs and Other Myths of thge Braking System"
http://www.stoptech.com/tech_info/wp...rakedisk.shtml
Team Owner
Joined: Jan 2007
Posts: 22,136
Likes: 23
From: In the woods looking for my thrown putter.
St. Jude Donor '13, '15
I dug around and [finally] found this... very informative...
It's a StopTech "White Paper" titled, "The 'Warped' Brake Discs and Other Myths of thge Braking System"
http://www.stoptech.com/tech_info/wp...rakedisk.shtml
It's a StopTech "White Paper" titled, "The 'Warped' Brake Discs and Other Myths of thge Braking System"
http://www.stoptech.com/tech_info/wp...rakedisk.shtml
Also, since I am running ceramic pads, I wonder if a switch to semi-metallic will cure my issue. It's been doing it so long, I'm sure the built up material is set, and will have to be ground off.
Last edited by Silverspeed; Mar 18, 2009 at 06:49 PM.
Team Owner
Joined: Jan 2007
Posts: 22,136
Likes: 23
From: In the woods looking for my thrown putter.
St. Jude Donor '13, '15
I'm curious, did you "bed" the new rotors when you installed them? I guess that what I'm really asking about what you did as compared to these instructions from our friends at Zeckhausen...
http://www.zeckhausen.com/bedding_in_brakes.htm
BAER is good stuff... I'm really sorry that you have had such a nightmare!
[/SIZE][/FONT]
Thanks for your help. 
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Drifting
Joined: Sep 2007
Posts: 1,283
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From: Hurst (Fort Worth area) Texas
St. Jude Donor '09
Read down in the Zeckhausen piece; he talks about that very thing. There may be hope for your BAERs, after all. I sure hope so! I'd bet that would take out those annoying surface "cracks" too.
Drifting
Joined: Sep 2007
Posts: 1,283
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From: Hurst (Fort Worth area) Texas
St. Jude Donor '09
When I put the StopTechs on my Nissan 350Z, I was lucky enough to find a loooooong "service road" running parallel to one of our local highways. It worked out perfect, and only took a [very] few minutes.
My wife had a Mercury Cougar that was forever having "warped" rotors... set after set after set. Too bad we traded the car before I read the "how to" on bedding in brake pads/rotors. I'd bet lunch for the rest of your natural life that there was never a "warped" rotor on the Cougar... but the condition that Zeckhausen described.
Last edited by RFP; Mar 19, 2009 at 10:39 PM.
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I had a similar problem on another car. Turned out the rotors (which were new) were not the problem. The issue was the pads were too aggressive and they were generating too much heat which caused a much larger amount of hot gases, not pad gases just normal air getting really hot. Because of increased amount of hot gas, the pads were literally vibrating on the rotor. I had two choices either put on less agressive pads or increase brake cooling. Chose the pads, problem went away. If you still have the original pads just stick them on and see what happens. Slotted / drilled rotors should take care of this, but not always. The car did not have ducted cooling for the brakes like the Vette has and this just added to the problem.