Author Topic: ventilated brake discs  (Read 3982 times)

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Offline Stuno1

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ventilated brake discs
« on: May 04, 2008, 07:22:32 PM »
It says the brake discs on the MPS are ventilated, i thought this would mean visible lines, holes or something on the discs but they just look standard to me????

Can they be ventilated without the lines and holes or is this a stupid question???
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Offline Mazzie

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Re: ventilated brake discs
« Reply #1 on: May 04, 2008, 07:47:41 PM »
Look from the edge and you will find they are hollow rather than solid, thats what they class as ventilated
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Offline Coulda

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Re: ventilated brake discs
« Reply #2 on: May 04, 2008, 08:32:27 PM »
Your thinking of cross drilled or slotted.... please dont ever install cross drilled rotors...they crack really easy.

Offline Stuno1

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Re: ventilated brake discs
« Reply #3 on: May 04, 2008, 08:35:02 PM »
oh ok, never researched discs before? So are the MPS brakes better than the drilled ones then from what you are saying coulda?
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Offline daiking

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Re: ventilated brake discs
« Reply #4 on: May 05, 2008, 12:00:42 AM »
Stealing Sunjay's thunder but some discussion of grooved, drilled and ventilated here:

http://www.carbibles.com/brake_bible.html

tbh, I'd doubt you'd notice the need for extra braking perormnace in most of your driving

Offline BJ the exile

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Re: ventilated brake discs
« Reply #5 on: May 05, 2008, 08:57:44 AM »


tbh, I'd doubt you'd notice the need for extra braking performance in most of your driving

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Offline Coulda

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Re: ventilated brake discs
« Reply #6 on: May 05, 2008, 05:20:14 PM »
All the cross drills do is cause weak spots allowing for cracks to begin...and it grates your brake pads like cheese. Slotted are good because they clean the crud off your pads that might melt to it during braking. The standard solid rotors are perfectly fine...but a very nice brake pad (like Hawk HPS) will be a better investment for stopping power than cross drilled rotors. For most people normal rotors are fine... if you spend alot of time tracking your car then it might be worth thinking about slotted... if you want a cool look get dimpled rotors! its like a golf ball!

Offline sk4tec

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Re: ventilated brake discs
« Reply #7 on: May 05, 2008, 09:16:03 PM »
No problem Diaking ;)

IMO you wouldn't get extra braking performance, only added cooling performance which will mean less fade. So with grooves\slots you'd get extra braking performance on a track. Most road brakes will fade after a few flying laps, especially if its got a BMW badge on the front and an M badge on the back :D :D

Ventilated front discs isn't uncommon. Most cars have them. The MPS being so fast might have ventilated rear ones too (anyone fancy checking?) the VW 4 Motion did.

Some cars are prone to warping discs I'm not sure where the MPS is on this, but 260 BHP is going need a lot of braking. I don't think you'd get the brakes warm enough on road driving (compared with track driving) but make sure to cool the brakes and the turbo after a blast!

Brakes are parts where most manufacturers can cut corners without affecting road performance. Porsche are famous for speccing high brakes, BMW less so. The Veyron needed to complete a number of consecutive 200-0 mph stops before it was signed off :o :o :o
« Last Edit: May 05, 2008, 09:34:22 PM by sk4tec »

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Offline Shifty

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Re: ventilated brake discs
« Reply #8 on: May 06, 2008, 04:15:06 PM »



Ventilated front discs isn't uncommon. Most cars have them. The MPS being so fast might have ventilated rear ones too (anyone fancy checking?) the VW 4 Motion did.



No,
Rear's on the MPS are not vented.

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Re: ventilated brake discs
« Reply #8 on: May 06, 2008, 04:15:06 PM »