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whay
05-03-2007, 12:45 PM
I just noticed in the brochure that the 535 and 550 come with 13.7 front and 13.6 rear VENTILATED brakes. Does that mean that they'll have the bored holes similar to that of the M5 brakes or are they ventilated in some other way?

aficionado
05-03-2007, 01:14 PM
I just noticed in the brochure that the 535 and 550 come with 13.7 front and 13.6 rear VENTILATED brakes. Does that mean that they'll have the bored holes similar to that of the M5 brakes or are they ventilated in some other way?


The rotors are regular. Not cross drilled or slotted.

Ventilated means they have incorporated a duct to capture air and direct it to the wheel well/brake area.

whay
05-03-2007, 01:30 PM
aha, ok thanks

jcatral14
05-03-2007, 03:31 PM
Ventilated means they're not solid discs like this...

http://www.theautochannel.com/autoparts/images/products/engineparts/m899973828arn.jpg

Definition: Disc rotor with solid metal between the two friction surfaces.

But more like this...

http://www.automotivearticles.com/uploads/disc-vent_001.jpg

Definition: Disc rotor that has a series of fins (or cooling passages) between the two friction surfaces to aid in heat dissipation.

Hope this helps.

whay
05-03-2007, 09:51 PM
Ok, yeah that makes sense to ventilate that way instead of just cross-drilling - but I guess the cross-drilling in addition helps not to mention it looks cool.

aficionado
05-04-2007, 07:44 PM
Ventilated means they're not solid discs like this...

http://www.theautochannel.com/autoparts/images/products/engineparts/m899973828arn.jpg

Definition: Disc rotor with solid metal between the two friction surfaces.

But more like this...

http://www.automotivearticles.com/uploads/disc-vent_001.jpg

Definition: Disc rotor that has a series of fins (or cooling passages) between the two friction surfaces to aid in heat dissipation.

Hope this helps.

Good reply. After posting my response, I was having doubts about my answer.