#25820, "RE: Pics of side of the car that shows your brake setup..." In response to In response to 19 Dec-05-04 08:47 PM by MCubed45
Originally posted by Vandy420a
Originally posted by MCubed45 direction only matters if the veins inside the rotors face a certain way. most veins go straight from the center outward so it doesn't matter which rotor you put on which side. however if your veins are directional and spiral out from the center a certain way then you need to place them such that the air will be directed outwards when the rotor is spinning.
I understand that concept, but the reason i asked is because i've seen them both ways, and intuition would lead me to believe that facing the other direction would force air away from the hubs/center of wheel...
ya but we're talking abouth the VANES not the SLOTS. you can't SEE the vanes in any of the pictures - only the slots on the surface of the rotor. you can probably only see the vanes if you take the rotor off the car. the direction of the slots doesn't really affect anything. if your rotors are non-directional (vanes go straight out from the center). you can put the rotor on either way and it doesn't matter which way the SLOTS face. slotted rotors and directional rotors are two completely separate things which have no interaction or affect on one another.
confusing no doubt most people would assume the slot direction is of some significance. even the shop i had my AEM rotors installed by asked which way I wanted them. the AEM's are non direction x-drilled/slotted rotors btw.
