The boxes themselves are labeled, but otherwise there's no obvious indication which side they go on, except to look at the cooling vanes. You make a reasonable point about this. Pretty harmless assist to the mechanic if I put a note directly on each rotor for the install.

With conventional wisdom I'm assuming the internal vanes should be angled towards forward direction, and not away from it, correct?

Wait... google... it's actually the other way? What the heck?





"vacuum effect" Hmm.

Anyway, I wrote to Z1 just now for clarification.

 

Welp, learned something today. The directional vanes inside the rotors should be swept *back* toward the rear of the car, just like this image here:

 

Glad to hear that Z1 is labeling their boxes now. When I got my slotted rotors there were no labels of any kind to tell you which side they were for. The really confusing part about the slotted rotors is that the slots go in the opposite direction of the cooling vanes so my rotors look to me like they are backwards because the slots angle forward. I called Spencer at Z1 to make sure I was putting them on the right way and told him they should label these things. I guess they finally got the message.

 

Well, the rotors themselves aren't marked for left-side, right-side. Obviously the fronts are different than the rears, but there's nothing indicating which side of the car they go. Seems they're putting stickers on the boxes themselves (below). But what if you take them out of the box and decorate your dining room with them for the winter?



And when you do that, there's no guarantee you put them back into the boxes they came from. So yeah, the rotors should be marked, and for the mechanic I'm going to put some masking tape on them for Driver Front, Driver Rear, Passenger Front, Passenger Rear.

Not to be obtuse, but I've always got stuck on "left" and "right", unsure if that means left when facing the car, or left when sitting in it.

 

OK, I just have to get over this and get it solid in my head that left side is drivers side, and that's all there is to it.

My first senior moment, I swear.

 

The fact that they clearly label the boxes now would have saved me so much time before. Think of right and left as if sitting in the car. Left hand drive would be our cars with the steering wheel on the left.

 

OK, now I got this covered.

No surprises, and I'm solid that I've got the correct rotors for the appropriate sides of the car. Marked up the boxes and the rotors themselves for the install.

Oh, and nobody gets to mock my wife's tablecloth.

 

The sprinkle slots don't really look off, but I have the same regular slotted rotors as you. I've just gotten used to them and I kinda like them that way now.

 

Totally Badass!
that combination looks clean and tight. Well done!
it's going to be stellar on your car.

 

Looking sharp.
Yes, that's the way the slots should be oriented. Even more-so because the internal cooling veins should be oriented towards the rear of the car.

 

I agree. The rotor RINGs should be marked F/R D/P front/rear driver/passenger.
no point in marking the hats, as they are interchangeable.

 

Unless you have a JDM vehicle!

 

Why'd you delete that post. I had to google wutang, LOL

Is that a wrap or a hydrodip? When do they go on the car?

 

Hahaha. Yeah they're a safety enhancement organization. They specialize in Protect ya neck.

The parts are painted, hydrodipped & clear coated by Maincoast customs.
Installation in 2-3weeks or whenever I get some time!

 

Remind me again why your rims have 2 valve stems. Did it have something to do with bleeding out the air to force in nitrogen?