slotted and drilled rotors whats their direction? - Suspension and Brake Forum

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slotted and drilled rotors whats their direction?
Tuesday, February 24, 2009 7:36 PM
ok this is kind of a newb question but i bought some rotors off a friend of mine for the neon rear disc swap that were gonna go on a neon, but i dont know which way they go. I have seen the wilwood and brembo kits go with the veins pointing towards the front, but i have also seen other cars with the veins pointing in the opposite direction. My question is, whats the correct way?

here are some pics to help you see what im talking about. The front of the car being at the right side of this post, which direction do they go?


option 1


option 2







Re: slotted and drilled rotors whats their direction?
Tuesday, February 24, 2009 7:45 PM
1 is passenger side

2 is driver side


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Alexis: Dustin, you're ghey, lol. I am better. I have tits, and tits rule all.

Re: slotted and drilled rotors whats their direction?
Tuesday, February 24, 2009 7:54 PM
sweet, thats all i needed to know. Basically the veins pointing towards the front of the car.





Re: slotted and drilled rotors whats their direction?
Tuesday, February 24, 2009 7:58 PM
Yup you got it


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In Loving Memory of Phil Martin December 14 2005
Alexis: Dustin, you're ghey, lol. I am better. I have tits, and tits rule all.

Re: slotted and drilled rotors whats their direction?
Tuesday, February 24, 2009 8:03 PM
I forgot to say thanks, so... thanks!





Re: slotted and drilled rotors whats their direction?
Tuesday, February 24, 2009 8:08 PM
no problem any time


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In Loving Memory of Phil Martin December 14 2005
Alexis: Dustin, you're ghey, lol. I am better. I have tits, and tits rule all.

Re: slotted and drilled rotors whats their direction?
Tuesday, February 24, 2009 8:51 PM
really doesnt matter. if big brake companies have it both ways... how can it hurt for the smaller brake companies?

i have had both. my hawks go like said, but my dads ssbc's go the other way...



Re: slotted and drilled rotors whats their direction?
Tuesday, February 24, 2009 9:40 PM
My Wilwoods have an arrow with with the slots pointed fowards (but are installed facing the rear for aesthetics... really doesn't make a difference), but my rears have an arrow pointed towards the back (EBC)... go figure









Re: slotted and drilled rotors whats their direction?
Tuesday, February 24, 2009 10:45 PM
On some rotors it does matter. On vented rotors some of the time the vents are straight, sometimes they are curved inside, if they are curved they need to be mounted the way they are labeled to avoid over heating the rotors.



Re: slotted and drilled rotors whats their direction?
Wednesday, February 25, 2009 4:06 AM
Darkstars wrote:

On some rotors it does matter. On vented rotors some of the time the vents are straight, sometimes they are curved inside, if they are curved they need to be mounted the way they are labeled to avoid over heating the rotors.



exactly


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In Loving Memory of Phil Martin December 14 2005
Alexis: Dustin, you're ghey, lol. I am better. I have tits, and tits rule all.

Re: slotted and drilled rotors whats their direction?
Wednesday, February 25, 2009 4:28 AM
Interesting. Learn something every day. I thought for sure the vanes would be meant to discharge outward, rather than pull in toward the hub. Hadn't that ought to be the best way to get rid of gases and heat? Seems from what you guys are saying that the opposite is true.




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Re: slotted and drilled rotors whats their direction?
Wednesday, February 25, 2009 8:01 AM
I read once that Brembo specifies the rotors to point towards the rear of the car, at the top. The slots and drills on the surface are irrelevant, its all about the vanes.




14.330 @ 96.37mph
Re: slotted and drilled rotors whats their direction?
Wednesday, February 25, 2009 8:10 AM
I just realized I was confusing ventilation vanes and slot/drill direction. Makes sense now.




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Re: slotted and drilled rotors whats their direction?
Wednesday, February 25, 2009 8:24 AM
in this case, it would not matter, iirc the neon rears are solid rotors, and have no veins. So you can mount them either way.....to match the fronts.





Re: slotted and drilled rotors whats their direction?
Wednesday, February 25, 2009 8:34 AM
I SATCHMOE YOU!!!! wrote:

1 is passenger side

2 is driver side


My baers are opposite of this, which is weird.









~2014 New Z under the knife, same heart different body~
______________________
WHITECAVY no more
2012 numbers - 4SPD AUTOMATIC!!
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Re: slotted and drilled rotors whats their direction?
Wednesday, February 25, 2009 8:37 AM
WHITECAVY wrote:

I SATCHMOE YOU!!!! wrote:

1 is passenger side

2 is driver side


My baers are opposite of this, which is weird.


That is weird cause my brakes are baers hmmmmmm


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JGM T-SHIRTS!!!!


In Loving Memory of Phil Martin December 14 2005
Alexis: Dustin, you're ghey, lol. I am better. I have tits, and tits rule all.

Re: slotted and drilled rotors whats their direction?
Wednesday, February 25, 2009 8:48 AM
I SATCHMOE YOU!!!! wrote:

WHITECAVY wrote:

I SATCHMOE YOU!!!! wrote:

1 is passenger side

2 is driver side


My baers are opposite of this, which is weird.


That is weird cause my brakes are baers hmmmmmm



whos gottem on backwards??





Re: slotted and drilled rotors whats their direction?
Wednesday, February 25, 2009 8:57 AM
John Benham wrote:

I SATCHMOE YOU!!!! wrote:

WHITECAVY wrote:

I SATCHMOE YOU!!!! wrote:

1 is passenger side

2 is driver side


My baers are opposite of this, which is weird.


That is weird cause my brakes are baers hmmmmmm



whos gottem on backwards??


mine are marked as to what one goes where so I can say I know they are on right lol




Satch Timeline Progress Thread
JGM T-SHIRTS!!!!


In Loving Memory of Phil Martin December 14 2005
Alexis: Dustin, you're ghey, lol. I am better. I have tits, and tits rule all.

Re: slotted and drilled rotors whats their direction?
Thursday, February 18, 2010 10:58 PM
Good info JBO. Thanks guys





14.4 @ 101 Bradenton Motorsports Park 11/22/08
Re: slotted and drilled rotors whats their direction?
Friday, February 19, 2010 6:20 AM
I SATCHMOE YOU!!!! wrote:

John Benham wrote:

I SATCHMOE YOU!!!! wrote:

WHITECAVY wrote:

I SATCHMOE YOU!!!! wrote:

1 is passenger side

2 is driver side


My baers are opposite of this, which is weird.


That is weird cause my brakes are baers hmmmmmm



whos gottem on backwards??


mine are marked as to what one goes where so I can say I know they are on right lol


Lol, funny thing is that I had a sheet that came with my big brake kit showing which way is right lol. So I had a VISUAL, now what Jeffie










~2014 New Z under the knife, same heart different body~
______________________
WHITECAVY no more
2012 numbers - 4SPD AUTOMATIC!!
328 HP
306 TQ
Re: slotted and drilled rotors whats their direction?
Saturday, February 20, 2010 10:57 AM
yay ! back from the dead.
and i still say the veins point toward the rear, providing a fast exit for debri and gas...thats also how mine were labled.




Re: slotted and drilled rotors whats their direction?
Saturday, February 20, 2010 1:23 PM
This is how Baer told me to install my rotors. There were stickers on each rotor and a sheet of paper in the box with written instructions and pictures to make sure i didnt @!#$ it up.






219whp - I <3 whine

Re: slotted and drilled rotors whats their direction?
Saturday, February 20, 2010 4:20 PM
the direction of the slots on the face of the the rotor is not what determines the direction, the pattern/direction of the slots is strictly decorative. The internal vanes are what determine the direction!



heres a pic, a cut away of a vented rotors





the straight vents don't matter which way they go, the curved vains you want mounted so looking at the topof the rotor they edges of the vanes point towards the back of the car. Picture in your head the rotor spinning, you don't want it scooping in air and sucking the hot air back to the hub area, you want it to spin and pull the hot air outwards and away from the brakes. The example on the right would go on the drivers side so it spins counter clockwise.








Re: slotted and drilled rotors whats their direction?
Saturday, February 20, 2010 4:25 PM
nice visual^^



Re: slotted and drilled rotors whats their direction?
Thursday, February 25, 2010 9:02 AM
Darkstars wrote:

the direction of the slots on the face of the the rotor is not what determines the direction, the pattern/direction of the slots is strictly decorative. The internal vanes are what determine the direction!



heres a pic, a cut away of a vented rotors





the straight vents don't matter which way they go, the curved vains you want mounted so looking at the topof the rotor they edges of the vanes point towards the back of the car. Picture in your head the rotor spinning, you don't want it scooping in air and sucking the hot air back to the hub area, you want it to spin and pull the hot air outwards and away from the brakes. The example on the right would go on the drivers side so it spins counter clockwise.







dude get the hell out of here with that useful information your suoposed to be the import owner who hates on all j-body owners. geez


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