Cross Drilled Rotors??
Le Mans Master
Joined: Jul 2004
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From: In front of C6s.
St: Jude Donor '10
Originally Posted by bogus
why do we call them that? They are CAST, not drilled... why not called them "perforated"?
Or something like that....
discuss.
Or something like that....
discuss.
Seriously, I've been told by too many other racers to stay away from them, they warp like
and crack. No thanx.I was in a car that had them at a HS event, they started to warp and then they cracked on a fun run.
Last edited by LilR3dCorvette; Nov 21, 2004 at 09:54 PM.
Elite Torch Red Member
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From: Exit 89 GSP,Lakewood,NJ The Land Of Mojo
Cental/South NJ Events Coordinator
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St. Jude Donor '03-'04-'05-'06-'07
I've had good luck with my Eradispeeds.
Those that warped and cracked, what brand were they?
I know the cheapos you find on ebay are better suited as paper weights.
Those that warped and cracked, what brand were they?
I know the cheapos you find on ebay are better suited as paper weights.
Le Mans Master
Joined: Jul 2004
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From: In front of C6s.
St: Jude Donor '10
Originally Posted by Mr Mojo
I've had good luck with my Eradispeeds.
Those that warped and cracked, what brand were they?
I know the cheapos you find on ebay are better suited as paper weights.
Those that warped and cracked, what brand were they?
I know the cheapos you find on ebay are better suited as paper weights.
Elite Torch Red Member
Joined: Sep 1999
Posts: 57,805
Likes: 23
From: Exit 89 GSP,Lakewood,NJ The Land Of Mojo
Cental/South NJ Events Coordinator
CI 1-2-3-4-5-6-7-8-9-10-11-12 Vet
CI-II Burnout & Drag Champ
St. Jude Donor '03-'04-'05-'06-'07
Damn, that's good to know. I haven't taken mine on a road course yet, but I don't do much roadracing, don't have the time. I'll be keeping tabs on mine.
Le Mans Master
Joined: Jul 2004
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From: In front of C6s.
St: Jude Donor '10
Originally Posted by Mr Mojo
Damn, that's good to know. I haven't taken mine on a road course yet, but I don't do much roadracing, don't have the time. I'll be keeping tabs on mine.
If you don't use them for roadracing they probably are going to be fine. I will say they are damn nice lookin'.
Thread Starter
Team Owner
Joined: Aug 2000
Posts: 40,156
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From: San Pedro CA
the biggest problem with C4 brakes are the calipers... the solid aluminum body will spread!!! there are not heat vents in there and the heat causes the caliper to open up and hurt braking performance.
As for rotor warpage... I am suspect to the phrase "warping". From some good stuff I have read, the real problem is transfer of pad material. I wonder what pads these guys are using...
As for rotor warpage... I am suspect to the phrase "warping". From some good stuff I have read, the real problem is transfer of pad material. I wonder what pads these guys are using...
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Team Owner
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From: Athens AL
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We call them cross-drilled because most brands are not cast with holes in them.
Baer, Brembo, Wilwood, those are cast with holes.
Baer, Brembo, Wilwood, those are cast with holes.
Le Mans Master
Joined: Jul 2004
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From: In front of C6s.
St: Jude Donor '10
Originally Posted by bogus
the biggest problem with C4 brakes are the calipers... the solid aluminum body will spread!!! there are not heat vents in there and the heat causes the caliper to open up and hurt braking performance.
As for rotor warpage... I am suspect to the phrase "warping". From some good stuff I have read, the real problem is transfer of pad material. I wonder what pads these guys are using...
As for rotor warpage... I am suspect to the phrase "warping". From some good stuff I have read, the real problem is transfer of pad material. I wonder what pads these guys are using...
Thread Starter
Team Owner
Joined: Aug 2000
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From: San Pedro CA
Originally Posted by LilRedCorvette94
I don't recall what kind of pads, but like I said, they aren't novice racers and not using the cheap stuff. I'll have to ask. Many of them strongly cautioned me against running any of the cross-drilled. Just passing on what I've heard/seen happen.
Melting Slicks
Joined: Sep 2000
Posts: 3,150
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From: Carlsbad, CA CA
Originally Posted by LilRedCorvette94
I just call them cr@p.
Seriously, I've been told by too many other racers to stay away from them, they warp like and crack. No thanx.
I was in a car that had them at a HS event, they started to warp and then they cracked on a fun run.
Seriously, I've been told by too many other racers to stay away from them, they warp like
and crack. No thanx.I was in a car that had them at a HS event, they started to warp and then they cracked on a fun run.
on this one. Please show pics where this happened. It is true that cross drilled rotors will crack under extreme heat but eradispeed rotors are casts with slots and holes so in reality they are not cross drilled. Because of this they are much stronger and will withstand extreme conditions. The car that your were in and warped and cracked on a "fun" run is complete bs. Eradispeeds are one of the best 2 pc non-ceramic rotors on the market, I have them and run them HARD at many track days never had a problem. I have witnessed many serious road racers with C5, viper, and mustangs that uses the same rotor with tons of power and without any issues.
I would love to see where your buddy's got for powerthat they cracked under a "FUN RUN"!
Le Mans Master
Joined: Mar 2004
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From: Ft. Lauderdale Fl
The name says it all....
The expensive ones are cast with holes in them BUT the cheap ones are drilled . I have a cheap set of cross drilled rotors and have had them for about nine to ten months and they work great--stops well and no cracking, yet.
Team Owner
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From: Athens AL
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Originally Posted by bogus
I find that interesting... you see, most major forms of racing use drilled rotors... er, perforated rotors.
Le Mans Master
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From: In front of C6s.
St: Jude Donor '10
Originally Posted by vader86
Most professionals do use the cross-drilled, but youll find alot of the guys that are into Road Racing and heavy autox will never use the cross-drilled rotors.
Le Mans Master
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From: In front of C6s.
St: Jude Donor '10
Originally Posted by zelement
I gotta call on this one.
on this one.
If I don't post pics it must be Just was passing on some info. Geez. Guess I'll in posts like these from now on...
Thread Starter
Team Owner
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From: San Pedro CA
Originally Posted by vader86
Most professionals do use the cross-drilled, but youll find alot of the guys that are into Road Racing and heavy autox will never use the cross-drilled rotors.
What I DID see are small, and rather deep, slots. These are limited photos of the C5R over the last few seasons.
But, I know that F1 uses them and Porsche puts them on the 911... Ferrari offers them...
Thread Starter
Team Owner
Joined: Aug 2000
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From: San Pedro CA
Originally Posted by LilRedCorvette94
Oh, yes, I must be making this up. If I don't post pics it must be Just was passing on some info. Geez. Guess I'll in posts like these from now on...
If I don't post pics it must be Just was passing on some info. Geez. Guess I'll in posts like these from now on...
It's discussion. And I am still trying to swallow the facts here.
I have never heard of the Eradispeed rotors cracking under stresses. And a lot of people here race on them.
It sounds odd that a small cadre of racers, in one part of the country, are having this much problem. Has Baer been informed?