Are my slotted/cross-drilled rotors on the wrong way?pic inside
11-18-2003, 05:50 PM
#1
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Are my slotted/cross-drilled rotors on the wrong way?pic inside 
11-18-2003, 06:20 PM
#2
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Depends on the manufacturer. According to most of the pics I've seen you have them correct. If those were eradispeeds that rotor would be on backwards. I'm suprised the instructions did not have them clearly marked. Or, that the rotors were not labeled L/R or have an arrow indicating the direction of rotation.
11-18-2003, 06:49 PM
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Originally Posted by WayneSS01
Depends on the manufacturer. According to most of the pics I've seen you have them correct. If those were eradispeeds that rotor would be on backwards. I'm suprised the instructions did not have them clearly marked. Or, that the rotors were not labeled L/R or have an arrow indicating the direction of rotation.
The rotors were marked left and right...the confusion is because my buddy has the Eradispeeds and his are the opposite direction(like you said). So different manufacturers, different directions. Thank you for your help.
11-18-2003, 11:28 PM
#6
Originally Posted by MadIceV8
Hate to tell ya this, but they are the wrong way. The top of the slot should enter the caliper 1st, not the bottom (or inner slot).
I was about to argue with you about that....but I did some looking and found this (I couldn't find the info I was thinking of however).
http://www.tirerack.com/brakes/brake...+Slotted+Rotor
They say that I'm wrong, and maybe I am.... Brembo wants the slot to contact the pad at the top first as well.
OOps....
Kevin
11-19-2003, 12:25 AM
#7
Originally Posted by MadIceV8
Hate to tell ya this, but they are the wrong way. The top of the slot should enter the caliper 1st, not the bottom (or inner slot).
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11-19-2003, 01:35 AM
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My Powerslots, which are rendered useless after 2 track days, (now I am back to OEM vented from Autozone $40 each), are clearly marked left and right on the hub area. You should really check with the place you bought them, or the manufacturer. Looking at the Powerslots and brake pads, the pad contact patch is across the slot at the same time....May the Force be with You.
11-19-2003, 01:39 AM
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HEY NY LS1, Your pic looks right on to me. The slots are making contact at lowest point of pad first, just like my clearly labeled Powerslots. Good luck!
Originally Posted by N.Y. LS1
11-19-2003, 07:59 AM
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The rotors were marked left and right...I put the left on the drivers side, is this correct??????? Who thought figuring this out would be so hard
11-19-2003, 10:34 AM
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Since your rotors were clearly marked, you installed correctly. No idea why mfgrs issue different recommendendations....they probably test their own rotors on a track, and flip them each way to see what stops better, and wears better.
11-19-2003, 12:19 PM
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Sorry NY LS1, I think This be my fault..lol Since I have the same rotors, I tried it both ways, The way the manuf. suggested and I got massive amounts of rub and squeal. I switched them to the way the Eradispeeds are designed to be and I get a lot less, still some. The Rotors themselves are not clearly marked as to which side is which, althought the boxes they were in were clearly marked (but the boxes weren't sealed and had the tops rippped off, so it could have been switched inadvertently) Get past the break in point of the rotors and then if you have any issues switch them ( I had issues..lol)
Good Luck, let me know how it turns out
Good Luck, let me know how it turns out
11-19-2003, 12:57 PM
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Originally Posted by Silver98camss
Sorry NY LS1, I think This be my fault..lol Since I have the same rotors, I tried it both ways, The way the manuf. suggested and I got massive amounts of rub and squeal. I switched them to the way the Eradispeeds are designed to be and I get a lot less, still some. The Rotors themselves are not clearly marked as to which side is which, althought the boxes they were in were clearly marked (but the boxes weren't sealed and had the tops rippped off, so it could have been switched inadvertently) Get past the break in point of the rotors and then if you have any issues switch them ( I had issues..lol)
Good Luck, let me know how it turns out
Good Luck, let me know how it turns out
Seriously, I have no squealing and the brakes feel great, so I'm assuming they are on correctly.
11-19-2003, 02:54 PM
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sorry to do this, but you ALL are wrong! the only way to tell what side a rotor should be on is: w/ the rotor mounted on the hub, look down on the rotor @ the vaines between the 2 friction surfaces. you want the vanes to curve towards the rear of the car. that way the inner part of the vane (closest to the hub) will scoop air as it spins and cause air to flow outward from the center. the slots and holes dont need to sweep through the pad in any order (top to bottom or vis versa).
11-19-2003, 03:06 PM
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Originally Posted by Glenn98ZM6
sorry to do this, but you ALL are wrong! the only way to tell what side a rotor should be on is: w/ the rotor mounted on the hub, look down on the rotor @ the vaines between the 2 friction surfaces. you want the vanes to curve towards the rear of the car. that way the inner part of the vane (closest to the hub) will scoop air as it spins and cause air to flow outward from the center. the slots and holes dont need to sweep through the pad in any order (top to bottom or vis versa).
Glenn what u say does make sense, and that jives with what Baer recommends, but I know we followed the manuf directions on N.Y. LS1's install
I am back to being
Scott
11-19-2003, 03:06 PM
#18
Glenn,
You are perfectly correct. I was simply answering which way the slots should be manufactured into the rotors for correct rotation. I'm assuming (dangerous, I know) that they are vented to spin properly or straight vaned rotors. But, you must go with the rotation that causes the rotor to pull air from the hub outward as Glenn said. "Let the slots fall where they may".....
You are perfectly correct. I was simply answering which way the slots should be manufactured into the rotors for correct rotation. I'm assuming (dangerous, I know) that they are vented to spin properly or straight vaned rotors. But, you must go with the rotation that causes the rotor to pull air from the hub outward as Glenn said. "Let the slots fall where they may".....
11-19-2003, 05:33 PM
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Originally Posted by 2002ScottOnyxSS
We have both cases covered..so we cant all be wrong
Glenn what u say does make sense, and that jives with what Baer recommends, but I know we followed the manuf directions on N.Y. LS1's install
I am back to being
Scott
Glenn what u say does make sense, and that jives with what Baer recommends, but I know we followed the manuf directions on N.Y. LS1's install
I am back to being
Scott
the only two things i saw posted was discusing orientation of the holes and the slots. i'm refering to the VANES that are between the innner and outter rotor surface. not sure why you all are confused. dont worry about the holes and slots, the vanes are what dictates the side of the car.