Z1 2-Piece Rear Rotors????

Dustin@Z1 · 04-23-2014, 11:00 AM

Quote:

Originally Posted by edconline

Amazing price Dustin

But even more importantly, which way do they spin?!

The internal vane direction dictates the direction of rotation...which is what I think someone mentioned previously.

If you plan on installing brake ducts that are mounted close to the hub, you want the vanes to slant towards the rear of the car. Inside (hub edge) leading. This will allow the vane to "scoop" the air and spin it out through the middle of the disc. \\\\

If you do not plan on installing any brake ducting, then it really does not matter. However, a 19" or larger wheel will have additional clearance between the wheel's barrel and the rotor itself. These will allow air to be scooped and pulled into cool the hub/wheel bearing....in theory. ////

The vanes are designed to scoop air and force it through the rotor. The rotor will perform this action, regardless of which direction you choose. However, if you do install brake ducts in conjunction with the rotors and install the rotors in the wrong orientation, the ducting will be work to its full potential.

I hope I have answered your question.

edconline · 04-23-2014, 11:07 AM

Quote:

Originally Posted by Dustin@Z1

The internal vane direction dictates the direction of rotation...which is what I think someone mentioned previously.

If you plan on installing brake ducts that are mounted close to the hub, you want the vanes to slant towards the rear of the car. Inside (hub edge) leading. This will allow the vane to "scoop" the air and spin it out through the middle of the disc. \\\\

If you do not plan on installing any brake ducting, then it really does not matter. However, a 19" or larger wheel will have additional clearance between the wheel's barrel and the rotor itself. These will allow air to be scooped and pulled into cool the hub/wheel bearing....in theory. ////

The vanes are designed to scoop air and force it through the rotor. The rotor will perform this action, regardless of which direction you choose. However, if you do install brake ducts in conjunction with the rotors and install the rotors in the wrong orientation, the ducting will be work to its full potential.

I hope I have answered your question.

Yes. I have never seen this suggested before, I think that would be an interesting test with some equipment to measure temps in both orientations. I will probably stick with the industry convention on orientation regardless of ducting or not. Thanks for the reply.

Shadezz · 06-03-2014, 05:21 PM

Quote:

Originally Posted by Dustin@Z1

The internal vane direction dictates the direction of rotation...which is what I think someone mentioned previously.

If you plan on installing brake ducts that are mounted close to the hub, you want the vanes to slant towards the rear of the car. Inside (hub edge) leading. This will allow the vane to "scoop" the air and spin it out through the middle of the disc. \\\\

If you do not plan on installing any brake ducting, then it really does not matter. However, a 19" or larger wheel will have additional clearance between the wheel's barrel and the rotor itself. These will allow air to be scooped and pulled into cool the hub/wheel bearing....in theory. ////

The vanes are designed to scoop air and force it through the rotor. The rotor will perform this action, regardless of which direction you choose. However, if you do install brake ducts in conjunction with the rotors and install the rotors in the wrong orientation, the ducting will be work to its full potential.

I hope I have answered your question.

Please let me know if I still need to change...Is it because of the slotted directions? Thanks for the heads up Depointfive0..

gomer_110 · 06-03-2014, 07:26 PM

Quote:

Originally Posted by Shadezz

Please let me know if I still need to change...Is it because of the slotted directions? Thanks for the heads up Depointfive0..

It's the internal vanes that determine the proper installation direction. The direction of the slots on the rotor surfaces is irrelevant.

Hotrodz · 06-03-2014, 08:27 PM

Quote:

Originally Posted by gomer_110

It's the internal vanes that determine the proper installation direction. The direction of the slots on the rotor surfaces is irrelevant.

Z1 posted on this earlier in the thread and they recommend that the outer vanes point to the rotor....I switched mine after being told this by SSFirehawk.

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