Can someone take a pic of...

[TurboProtege]

The front rim/ disc brake on their car, are the discs cross drilled or slotted?

[turbolsd]

neither, it's vented

[digi168]

what exactly is vented? I thought they were suppose to be slotted?

[turbolsd]

when you look at the edges of the brakes, it has slots in them. I don't have the car yet but when I look at the pictures, it's vented. Here's a picture of vented brakes:

http://240z.jeromio.com/images/BrakesVentedAndNon2.JPG

The right brake is the vented one.


Here's a picture of slotted brakes:

http://www.proformance-motorsports.com/corvettes/brakes/High-Performance-Slotted-Rotors.html

The front disc are vented and the rear disc is solid meaning that there are no slots around the edges.

[JasonH]

Woo-hoo! School's in!

Vented brake rotor:
http://www.off-road.com/toyota/images/rotorpic.jpg
http://www.thrasher-ep.com/images/brakes/brake_rotor_comp_thick.jpg

See how there's a space between the inside and outside surfaces of the rotor? That allows air to circulate through to cool the rotor. The spaces extend to the inside of the rotor, near the hub, so air can come in there and blow out the outer edge.

Cross-drilled brake rotor:
http://www.off-road.com/isuzu/gifs/brakes/rotorsbox.jpg

These are actually vented and cross drilled, which is a fairly common combination. The holes add surface area to the rotor to allow more heat to be dissipated with the added benefit of allowing brake pad dust and gasses to be expelled through the holes. The downside is you lose rotor face area (less area for the pads to grip) and the holes can make the rotor prone to cracking.

Slotted brake rotor:
http://www.a-1brakes.com/images/slotted.gif

These too are usually vented and slotted. Slots are machined into the face of the rotor, but they don't go all the way through. The slots serve some of the same purpose as the cross-drilling. Namely, they allow gases and dust to be removed from the roto face efficiently. The slots do not weaken the rotors like drilling does, although they don't help in cooling as much as the cross drilling does.

[turbolsd]

the wait for this car is hard.

Digi:

How is the braking of the car??

[JasonH]

I remember somebody (big_ben?) saying the braking was impressive compared to the MP3. He actually said it was the one thing that struck him as the biggest improvement, of course, he was coming from a turbo'd MP3, so I guess that makes sense.

[digi168]

Braking is great, car stops when it is suppose to and there doesn't feel like there is any fade.