[Z06] Cracked Baer Rotors
Thread Starter
Advanced
Joined: Feb 2004
Posts: 82
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From: HUNTINGTON BEACH CA
Cracked Baer Rotors
While changing my brake pads to go racing last weekend at Willow Springs, I noticed several cracks in my Baer Eradispeed rotors. They are about and inch or so long, go through the drilled holes and are full thickness. I noticed about 2 to 3 cracks per rotor.
I have had them for about four months and have fivetrack days on them. I broke them in just as the instructions stated and have had no other problems since(i.e. warping).
My question is, Is this normal or maybe a defect? I was hoping to get some professional opinions and/or experience from some forum members before calling Baer.
Thanks,
Thorpe
I have had them for about four months and have fivetrack days on them. I broke them in just as the instructions stated and have had no other problems since(i.e. warping).
My question is, Is this normal or maybe a defect? I was hoping to get some professional opinions and/or experience from some forum members before calling Baer.
Thanks,
Thorpe
Team Owner
Joined: Oct 2001
Posts: 56,381
Likes: 79
[QUOTE=Too Tall Z06] Baer Eradispeed rotors.
[QUOTE]
I hate to tell you this but those rotors are for looks and the street only. The first reason rotors had holes was for lighting, then for the out gassing of the pad material, neither reason is needed today. I'm friends with one the head engineers at Porsche, not only do their cast in holes crack, but he admits that they only have holes now for marketing reasons; and if it were up to him he would have slotted rotors only. Notice the heavy and fast Cayenne has solid rotors.
Use DRM brake ducts, high temp fluid, stock rotors, and racing pads for the track and you'll be good to go. Save your baers for the street.
[QUOTE]
I hate to tell you this but those rotors are for looks and the street only. The first reason rotors had holes was for lighting, then for the out gassing of the pad material, neither reason is needed today. I'm friends with one the head engineers at Porsche, not only do their cast in holes crack, but he admits that they only have holes now for marketing reasons; and if it were up to him he would have slotted rotors only. Notice the heavy and fast Cayenne has solid rotors.
Use DRM brake ducts, high temp fluid, stock rotors, and racing pads for the track and you'll be good to go. Save your baers for the street.
Last edited by User 81424; Jul 12, 2004 at 08:13 AM.
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Unforutinitly rotors with holes in are for looks only. The therory behind the cooling prosses is sound but only when the holes are cast into the rotor like Porsche does. However, even Porsche has changed their tune.
Can we say BLING BLING??
This is why so many ppl who track their cars use the Raybestos rotors Rockauto.com $19 ea plus shipping or NAPA rotors $25 each.(Same rotor) Better then OEM - these rotors may be inexpesive but they are not cheap.
Napa rotor part numbers
RF - UBP 86700
LF - UBP 86701
LR - UBP 86702
RR - UBP 86703
I do 13-17 Track weekends a year and I use the stock PBR Corvette brakes with the NAPA rotors, PFC-01 pads, Castrol SRF brake fluid, stainless steel lines and DRM cooling ducts. I take off the street pads and put on the PFC-01 pads and check and bleed fluid before each event. This also allows me to inspect my brakes quite often. Safty first.
Rotors and pads last 3 to 4 events.
Porsche, not only do their cast in holes crack, but he admits that they only have holes now for marketing reasons;
This is why so many ppl who track their cars use the Raybestos rotors Rockauto.com $19 ea plus shipping or NAPA rotors $25 each.(Same rotor) Better then OEM - these rotors may be inexpesive but they are not cheap.
Napa rotor part numbers
RF - UBP 86700
LF - UBP 86701
LR - UBP 86702
RR - UBP 86703
I do 13-17 Track weekends a year and I use the stock PBR Corvette brakes with the NAPA rotors, PFC-01 pads, Castrol SRF brake fluid, stainless steel lines and DRM cooling ducts. I take off the street pads and put on the PFC-01 pads and check and bleed fluid before each event. This also allows me to inspect my brakes quite often. Safty first.
Rotors and pads last 3 to 4 events.
Last edited by AU N EGL; Jul 12, 2004 at 04:13 PM.
Drifting
Joined: Sep 2000
Posts: 1,633
Likes: 279
From: Dallas TX
Unfortunantly, cracking around the drilled holes in rotors is rather common, especially when stressed at track temps. I happen to think they do "look" good, but its one of those ironic things where swapping to drilled and slotted rotors to get that high performance racing look actually lowers performance. Go figure....
Drifting
Joined: Jun 2004
Posts: 1,627
Likes: 143
From: Goodyear Az
From Baer's website:
"Although crossdrilling and/or slotting will provide a welcome path to expend any gasses when and if they develop, it is primarily a visual enhancement behind today’s often wide-open wheel designs."
and
"Baer’s rotors are cast with crossdrilling in mind, from the material specified, to curved vanes, behind which the holes are placed to minimize potential crack migration. Slotted surfaces are what Baer recommends for track only use."
http://www.baer.com/Support/FAQ.aspx#1
"Although crossdrilling and/or slotting will provide a welcome path to expend any gasses when and if they develop, it is primarily a visual enhancement behind today’s often wide-open wheel designs."
and
"Baer’s rotors are cast with crossdrilling in mind, from the material specified, to curved vanes, behind which the holes are placed to minimize potential crack migration. Slotted surfaces are what Baer recommends for track only use."
http://www.baer.com/Support/FAQ.aspx#1
Thread Starter
Advanced
Joined: Feb 2004
Posts: 82
Likes: 0
From: HUNTINGTON BEACH CA
Thanks for all of your replies. I'm just glad that I saw them before any catastrophes occured. Changing rotors definetely adds to the prep time before track days, but it looks like the best option.
Thanks again,
See you at the track!
Thanks again,
See you at the track!
Melting Slicks
Joined: Mar 2002
Posts: 3,246
Likes: 0
From: somewhere on a roadcourse
Cruise-In IV Veteran
I only use stock rotors for the track, never the crossed/slotted rotors!
I just started ordering Raybestos rotors, love 'em and the price is even better than stock
I just started ordering Raybestos rotors, love 'em and the price is even better than stock
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Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Here is a thread on front brake cooling. Lots of good info and pics of the DRM ducts and the home made Mobil 1 cooling ducts
http://forums.corvetteforum.com/show...post1547845070
Have to keep those bad boys cool on track days
Be
http://forums.corvetteforum.com/show...post1547845070
Have to keep those bad boys cool on track days
Be
Melting Slicks
Joined: Mar 2003
Posts: 2,472
Likes: 0
From: Toronto ONTARIO
not a z but on my c4 after one hard stop after a top speed run last weekend... i noticed cracks today as well when washing here... both fronts had cracks. I did hit 312 km/hr and mashed the brakes as hard as i could just to test the brakes out.. I called my Baer and they said they will replace them both. 
Racer
Joined: Oct 2003
Posts: 333
Likes: 0
From: COWFORD FL
Originally Posted by nuke61
From Baer's website:
"Although crossdrilling and/or slotting will provide a welcome path to expend any gasses when and if they develop, it is primarily a visual enhancement behind today’s often wide-open wheel designs."
and
"Baer’s rotors are cast with crossdrilling in mind, from the material specified, to curved vanes, behind which the holes are placed to minimize potential crack migration. Slotted surfaces are what Baer recommends for track only use."
http://www.baer.com/Support/FAQ.aspx#1
"Although crossdrilling and/or slotting will provide a welcome path to expend any gasses when and if they develop, it is primarily a visual enhancement behind today’s often wide-open wheel designs."
and
"Baer’s rotors are cast with crossdrilling in mind, from the material specified, to curved vanes, behind which the holes are placed to minimize potential crack migration. Slotted surfaces are what Baer recommends for track only use."
http://www.baer.com/Support/FAQ.aspx#1
Drifting
Joined: Jun 2004
Posts: 1,627
Likes: 143
From: Goodyear Az
Originally Posted by Sandra Bigwoode
Funny you mention that, when I pointed out the very same things about drilled rotors a year ago I got a lot of Continuous and Returning Crap or was that on the other Corvette Forum... =;-]
