altspace

iTrader: (2)

Paint yours already man, no more waiting.

DOMINION

I know the 559 and SLR Mac. have them facing that way too. But then we cant hit 300KLM+

j67345

man, that must be hard to drive with half a tire!

ROCKSTAR RX8

I have actually tried both ways, and according to KENSAI Racing (Grand-Am KONI Challange Team) they said it's better to have the slots facing the front of the car... Breaks better, cools better and the pads will last longer too...

DOMINION

Wow. I might just have to change mine.
Thanks!

Astral

would love to see some more pics. which paint did you use?

Astral

as per racingbrake instructions, the slots indeed should face the front of the car.

phxtravis

I hope no one goes out and "flips" their rotors...You NEED to take into account how the INTERNAL vanes face, which may vary from manufacturer to manufacturer.

mysql101

The way the slots are on the rotor face don't mean anything.

Inside the rotor are grooves that channel air. Some rotors require a specific direction, some don't. It's strictly for cooling purposes.

DOMINION

Right I'll post some pic's up latter.
I'm useing rustoleum paint from homedepot. 2 washes and 100+ heat out side. You can only imagine how hot they get. So far its holding up great.

Astral

cool. what color name?

MazdaManiac

iTrader: (3)

Not so. There is a significant difference in the function of the slots when they are facing the wrong way.


True. Many simply have radially neutral vanes so it wouldn't matter. Those with inclined vanes should have them oriented into the airflow.
Inclined-vane rotors will have their slots properly aligned as well.

altspace

iTrader: (2)

That's exactly what I have been using for several years and on many cars. You don't need to buy the expensive caliper paint kits and you have more colors to choose from. I mixed mine with OEM VR paint.

juikster

mm, so your saying if I was looking at my rotor from the side head on, the vanes outer cut rolls into the bottom part of the caliper first in a forward roll, right?

by the way nice shot of yur latest av.......sweet!

MazdaManiac

iTrader: (3)

The vanes inside the rotor should be pointed in the same direction as the slots.



If the internal vanes are perfectly radial (at a right angle to a circumferential tangent), then your slots should be, at least, oriented as in the picture above.
Cross-drilling is omniidirectional.

Astral

What does it mean exactly, oriented into the airflow? If I understand what you mean, then in the following diagram with F being the front of the car, the internal vanes at the top of the rotor need to be tilted in as such:

F \ R

I looked at my RacingBrake rotors and the internal vanes are tilted in the opposite direction from the slots. So as per arrow on the rotor and the instructions on the site, the internal vanes are supposed to be:

F / R

whereas visually the slots are tilted in the opposite direction:

F \ R

(as in the last photo w/ a black 8 that you posted)

DOMINION

^Thats what hes getting at, every Rotor maker makes them different. You have to follow the specs bro.

Color is up to you but its called rustoleum

Yup. Works great and homedepot will mix any color you want!

DOMINION

As requested

altspace

iTrader: (2)

Sometimes I wish I had kept my RAYS g-Games 77W, though mine were one piece. Looks great!