drilled & slotted rotor question
Thread Starter
Intermediate
Joined: Nov 2008
Posts: 33
Likes: 9
From: Albertson New York
drilled & slotted rotor question
My mechanic replaced the Brembos with AC Delco Durastop. Both drilled but the Delcos are also slotted. He put the fronts on with the spiral going out towards nose of car and the rear with the spiral going out towards trunk. Basically, apposing the other. Thought all 4 should spiral out towards nose or head in same direction.
Is that correct and if not can it affect braking? If a problem I will have him correct it tomorrow.
Thanks
Is that correct and if not can it affect braking? If a problem I will have him correct it tomorrow.
Thanks
Burning Brakes
Joined: Mar 2008
Posts: 983
Likes: 36
From: Middle Of Kali CA
My mechanic replaced the Brembos with AC Delco Durastop. Both drilled but the Delcos are also slotted. He put the fronts on with the spiral going out towards nose of car and the rear with the spiral going out towards trunk. Basically, apposing the other. Thought all 4 should spiral out towards nose or head in same direction.
Is that correct and if not can it affect braking? If a problem I will have him correct it tomorrow.
Thanks
Is that correct and if not can it affect braking? If a problem I will have him correct it tomorrow.
Thanks
Burning Brakes
Joined: Apr 2006
Posts: 787
Likes: 2
From: Ontario
My mechanic replaced the Brembos with AC Delco Durastop. Both drilled but the Delcos are also slotted. He put the fronts on with the spiral going out towards nose of car and the rear with the spiral going out towards trunk. Basically, apposing the other. Thought all 4 should spiral out towards nose or head in same direction.
Is that correct and if not can it affect braking? If a problem I will have him correct it tomorrow.
Thanks
Is that correct and if not can it affect braking? If a problem I will have him correct it tomorrow.
Thanks
Hi.... The rotors,IF,they are directional, will have the direction (an arrow, left/right stamp) marked right on the rotor.
Also, if they have 4 different part numbers, that would be a sure sign that they go in certain positions..........
HTH
Instructor
Joined: Jan 2009
Posts: 149
Likes: 1
From: Houston Texas
I have the AC/Delco drilled/slotted Performance rotors on my coupe. They have four different part numbers and are clearly marked with "L" and "R" stickers. Here are pics of mine front and rear (driver's side):
Le Mans Master
Joined: Aug 2006
Posts: 9,987
Likes: 25
From: If opportunity doesn't knock, build a door. South West Florida / Livin' The Dream
St. Jude Donor '12
This thread may help.
http://forums.corvetteforum.com/c5-t...ed-rotors.html.
My rotors pull air from behind the wheels and push it out the front. Post #9 will probably provide you with the most help.
http://forums.corvetteforum.com/c5-t...ed-rotors.html.
My rotors pull air from behind the wheels and push it out the front. Post #9 will probably provide you with the most help.
Thread Starter
Intermediate
Joined: Nov 2008
Posts: 33
Likes: 9
From: Albertson New York
[IMG]file:///C:/DOCUME%7E1/JOHNNY%7E1/LOCALS%7E1/Temp/moz-screenshot.jpg[/IMG][IMG]file:///C:/DOCUME%7E1/JOHNNY%7E1/LOCALS%7E1/Temp/moz-screenshot-1.jpg[/IMG]Found this on Zeckhausen Racing site. Seems to depend on the internal vents. http://www.zeckhausen.com/how_to_pro...all_rotors.htm
"When the directional rotors are properly installed, these internal vanes should lean toward the back of the car -
Turns out the fronts are on wrong. Vents are facing forward. Thank you for helping me.
"When the directional rotors are properly installed, these internal vanes should lean toward the back of the car -
Turns out the fronts are on wrong. Vents are facing forward. Thank you for helping me.
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Racer
Joined: Oct 2008
Posts: 382
Likes: 1
From: Whitby Ontario
If the brakes are not marked you can easily tell by looking at the internal vanes on the rotor, they should be directed so they act as a centrifugal fan, directing air away from the rotor. Most brands like the picture above, cut the outside slots in the opposite direction as the internal ones.
Hope that helps.
Hope that helps.
