Directional rotors
Thread Starter
Racer
Joined: Jul 2002
Posts: 287
Likes: 2
From: Mt Pleasant Sc
Directional rotors
Okay what is the CORRECT direction to install directional rotors ? ? ?
Baer says to install the rotors with the vanes pointing foward at the top.
GM and Coleman Racing products www.colemanracing.com and my logic says to install the rotors with the vanes pointing to the rear of the car to promote air flow thru the slots by centrifugal force.
I notice that GM puts only one directional rotor on the C6 Z06 , it points foward on one side and backward on the other side. Which is correct ? ? ?
I am looking for anyone who has a infra red temp gauge to check the rotor temps on both sides of the car after a few 60 mph to 15 mph stops the see which side has the cooler rotor and let the world know.
Who is correct ? ? ?
Baer says on their site that overheated rotors will not be elegible for warranty return. If Baer is giving the wrong direction to install their rotors who is at fault.
Ed
Baer says to install the rotors with the vanes pointing foward at the top.
GM and Coleman Racing products www.colemanracing.com and my logic says to install the rotors with the vanes pointing to the rear of the car to promote air flow thru the slots by centrifugal force.
I notice that GM puts only one directional rotor on the C6 Z06 , it points foward on one side and backward on the other side. Which is correct ? ? ?
I am looking for anyone who has a infra red temp gauge to check the rotor temps on both sides of the car after a few 60 mph to 15 mph stops the see which side has the cooler rotor and let the world know.
Who is correct ? ? ?
Baer says on their site that overheated rotors will not be elegible for warranty return. If Baer is giving the wrong direction to install their rotors who is at fault.
Ed
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Colman is correct.
Direction of the vains is pointing backwards at the top of the rotor.
GM Bean counters only allowed one rotor for the front and rea.
For normal street braking it does not make much difference. But raceing it is like night and day for brake rotor cooling
60 to 15 mph stops wont show you much, but severl 100 to 20 mph stops will show you a lot.
Direction of the vains is pointing backwards at the top of the rotor.
GM Bean counters only allowed one rotor for the front and rea.
For normal street braking it does not make much difference. But raceing it is like night and day for brake rotor cooling
60 to 15 mph stops wont show you much, but severl 100 to 20 mph stops will show you a lot.
Burning Brakes
Joined: Aug 2003
Posts: 1,070
Likes: 9
From: MARRIOTTSVILLE MD
You install all rotors per each manufacturers instructions. I used to think the same way until I called Baer and verified that their install instructions are correct. If you are racing I believe most guys use a solid Napa rotor because the drilled rotors will not hold up under racing conditions. I have drilled rotors but I put them on because they look cool.
Last edited by INTHERED; Apr 4, 2007 at 12:34 PM. Reason: spelling
Burning Brakes
Joined: Aug 2004
Posts: 770
Likes: 0
Which Direction?
[QUOTE=INTHERED;1559669689]You install all rotors per each manufacturers instructions.QUOTE] I agree.
Is this right?
Or is this right? Correct Answer- Both.
When you get your new Bear Eradispeed Plus rotors, look at the vanes. You will notice that they flow from the center to the outside. In other words the outlets for the vanes point toward the back, not the front. The pattern of the holes and slots does not follow the vanes, but go the opposite direction on the Baer rotors.
Is this right?
Or is this right? Correct Answer- Both.
When you get your new Bear Eradispeed Plus rotors, look at the vanes. You will notice that they flow from the center to the outside. In other words the outlets for the vanes point toward the back, not the front. The pattern of the holes and slots does not follow the vanes, but go the opposite direction on the Baer rotors.
Burning Brakes
Joined: Aug 2004
Posts: 770
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Here is a pic from the Baer site. Notice the holes and slots go the opposite direction from the vanes.
The instructions that come with them are clear as to which side of the car they go on. And they do not mount with vanes foward on top.
I don't know where you read that.
The instructions that come with them are clear as to which side of the car they go on. And they do not mount with vanes foward on top.
I don't know where you read that.
Team Owner
Joined: May 2005
Posts: 23,682
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From: Flagstaff Az.
When I spoke with Randy at Doug Rippie Motorsports I asked him which way the vents face. They face rearward to help the air introduced by the cooling vents to flow out thru the rotors easier, Normal driving probably not much difference, spirited driving in mountains or curvy roads will make a difference.
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Le Mans Master
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From: Los Angeles
Thread Starter
Racer
Joined: Jul 2002
Posts: 287
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From: Mt Pleasant Sc
Yeah, my bad , I ASSumed the grooves in the rotors were in the same dir. as the vanes. I think I have it right now. The vanes SHOULD be pointing to the rear at the top.
I am still looking for some temp readings from someone out there.
Ed
I am still looking for some temp readings from someone out there.
Ed
Team Owner
Joined: Apr 2001
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From: S.W. Ohio. . . . . . NRA Life Member
remember, you are not looking at the holes or slots drilled into the outer surface; you're looking for the cooling vanes inbetween the outer rotor surfaces (the cutaway section in the pics).
Le Mans Master
Joined: Sep 2004
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From: Los Angeles
Typically right off the track around 900 to 1200 depending on car and track. But this is after considerable time to cool off just driving into the pits. And as I stated, no significant or consistent difference between L & R.
Team Owner
Joined: Sep 2003
Posts: 43,084
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From: Raleigh / Rolesville NC
Iron rotors glow oarnge at 1200*F
Carbon rotors glow orange white ~ 1400* F
WTF what temp is Over heating??
If your over heating your rotors, your not stopping and
Carbon rotors glow orange white ~ 1400* F
Originally Posted by edlipman
Baer says on their site that overheated rotors will not be elegible for warranty return.
If your over heating your rotors, your not stopping and
Last edited by AU N EGL; Apr 5, 2007 at 01:55 PM.
Team Owner
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From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
I agree with most here on this. You cannot just use the direction of the slots (on the "firepath"), etc as the determining factor as to what is "right". In other words there is no "right" or "wrong". It depends on the manufacturer. As has been pointed out, Baer's Eradispeeds don't use a typical vane pattern. These should be installed as per Baer's recommendation.
HTH,
Robert
HTH,
Robert
Team Owner
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From: Buy USA products! Check the label! Employ Americans
I put rotors on my car and put the wrong NAPA rotor on one side. Did I feel a difference at the track event driving not really. The thing that made me look was as I checked them after two session the backward one has significantly more heat checks after 2 or 3 sessions. It does make a difference. On the street you would be jailed before you could make a difference or your very lucky. Also the location you take rotor temps is very critical and it is cooler as you move toward the hub.
Le Mans Master
Joined: Sep 2004
Posts: 5,707
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From: Los Angeles
I put rotors on my car and put the wrong NAPA rotor on one side. Did I feel a difference at the track event driving not really. The thing that made me look was as I checked them after two session the backward one has significantly more heat checks after 2 or 3 sessions. It does make a difference. On the street you would be jailed before you could make a difference or your very lucky. Also the location you take rotor temps is very critical and it is cooler as you move toward the hub.
I have not even seen the difference in heat checks. I get both rotors heat checked in one day at Road America.
That is because your are driving!!!!!!