Which Direction....
Thread Starter
Ham Radio - W7RKN
Joined: Apr 2013
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From: Reno, Nevada
Which Direction....
I have 4 new rotors to install on my car. Nice, pretty Slotted and drilled. Left, righ,t front, and rear. Unfortunately, the parts supplier figured I was smarter than I am...so...
Which direction should the slots go?
Logic tells me the slots should always face into the direction of rotation...at the top...that way the slots can pick up the cool air flowing towards the brakes from the air duct.
Someone else said, no, the slots should face *away* from the air flow to help blow the pad dust away from the rotor...sounds right, but, to me, not logical.
What say you tech brains out there?
Many thanks.....
MC
Which direction should the slots go?
Logic tells me the slots should always face into the direction of rotation...at the top...that way the slots can pick up the cool air flowing towards the brakes from the air duct.
Someone else said, no, the slots should face *away* from the air flow to help blow the pad dust away from the rotor...sounds right, but, to me, not logical.
What say you tech brains out there?
Many thanks.....
MC
Thread Starter
Ham Radio - W7RKN
Joined: Apr 2013
Posts: 1,002
Likes: 10
From: Reno, Nevada
Team Owner
Joined: Sep 2005
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From: Ventura County, Calif
I don't think it's a big deal either way on a street car but.....I think if you have the kind where the slots go all the way to the outside edge of the rotors, you want the rotational force to move (throw) pad material, water and gas "out", not in.
Here's an example to show what I mean:
http://brakeperformance.com/installa...structions.php
Here's an example to show what I mean:
http://brakeperformance.com/installa...structions.php
Race Director
Joined: Oct 2005
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From: Saint Albans, WV
I don't think it's a big deal either way on a street car but.....I think if you have the kind where the slots go all the way to the outside edge of the rotors, you want the rotational force to move (throw) pad material, water and gas "out", not in.
Here's an example to show what I mean:
http://brakeperformance.com/installa...structions.php
Here's an example to show what I mean:
http://brakeperformance.com/installa...structions.php
http://www.racetechnologies.com/imag...all_Manual.pdf
Team Owner
Joined: Sep 2005
Posts: 20,352
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From: Ventura County, Calif
I think the discs like the Brembos are a specific design to work that particular way. I don't have the experience to know whether "all" discs with slots are that purposefully designed and one would have to make sure of the correct rotation.
So, Charlie, what brand discs did you get?
So, Charlie, what brand discs did you get?
Thread Starter
Ham Radio - W7RKN
Joined: Apr 2013
Posts: 1,002
Likes: 10
From: Reno, Nevada
I think the discs like the Brembos are a specific design to work that particular way. I don't have the experience to know whether "all" discs with slots are that purposefully designed and one would have to make sure of the correct rotation.
So, Charlie, what brand discs did you get?
So, Charlie, what brand discs did you get?
I'll get my money back and go with the Brake Performance rotors..like them better..the slots go all the way to the edge of the rotor, while these are just cut into the face of the disk.
BTW...Thanks for all the great info.....Interesting to note...I worked as a line mechanic all my life..and on performance cars as well (Porsche's and Audi's) and I am now acquiring lots of new knowledge about cars.....Never too late to learn!
MC
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From: Hudson WI
NCM Sinkhole Donor
At the end of the day, it doesn't matter. GM uses the same rotors on the right and left side on the Z51, GS and Z06, so that tells me it doesn't matter becasue 50% are installed in the wrong direction, by design.
Here is how Baer says to install them.
Right Front.
Here is how Baer says to install them.
Right Front.
Last edited by timd38; Sep 2, 2014 at 07:49 AM.
Thread Starter
Ham Radio - W7RKN
Joined: Apr 2013
Posts: 1,002
Likes: 10
From: Reno, Nevada
I am leaning towards what Brake Performance sys...the type of cooling 'vanes' inside the rotor should be the deciding factor on how the rotors are installed.
Rotors Online shipped me the wrong rotors..I ordered for C6..even on the confirmation email it says C6 but they sent me C5/Z06 rotors......whasa matter..their parts picker doesn't read English?!! Needless to say, I am upset. I have a call into them, going to cancel the order and re-order from Brake Performance..like the way their slots are cut better
In case I forget down the road...Thanks to everyone for the great information offered up on rotor direction! Nedxt discussion I will stat will be about opinions on which tire brand to buy to replace my GY RF's....Leaning toward Michelin's but..that's another thread.
MC
Rotors Online shipped me the wrong rotors..I ordered for C6..even on the confirmation email it says C6 but they sent me C5/Z06 rotors......whasa matter..their parts picker doesn't read English?!! Needless to say, I am upset. I have a call into them, going to cancel the order and re-order from Brake Performance..like the way their slots are cut better
In case I forget down the road...Thanks to everyone for the great information offered up on rotor direction! Nedxt discussion I will stat will be about opinions on which tire brand to buy to replace my GY RF's....Leaning toward Michelin's but..that's another thread.
MC
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