All Things Mk5 > Performance Modifications
Brake Ducts
jimk04:
Oh just realised - phaeton has a trailing caliper - we have leading.... :confused: :fighting: :sad1:
rex:
Yup... they have a "double arm" (hope this is the English name) suspension and we have a MacPherson one.
All the audis (a4/a5/a6...)/vws (Passat B5, Phaeton) I know that have double the arm suspension, have a trailing caliper.
the bruce:
Great thread, Rex !! To make things short:
Please do remove the shields. You'll never regret it. :wink:
:drinking:
On a side note:
The issue is the trailing caliper + FWD incl. drive shafts making it hard to route a hose from front to hub.
Open fog grills into the wheel well + removed shields can decrease rotor temperature significiently by,
say, 50° C and more.
Don't mind about brake cooling in the winter. It doesn't realy matter if the pads have -10° or +50° C
compared to 500°C on the track. I even never felt any delay in the wet + salt.
BTW - engine bay, under bottom frontal area and wheel well are high pressure zones. Besides the car
(at your doors) there are low pressure zones. Knowing this you can easily imagine the average air flow.
:driver:
rex:
--- Quote from: the bruce on January 20, 2013, 02:57:02 am ---Please do remove the shields. You'll never regret it. :wink:
--- End quote ---
The car is still a daily drive (I bought a Seat Ibiza as daily drive but I will still occasionally use the Golf also) and the roads in Romania have a lot of dirt. So, for the moment, taking the dust shields off is not an option... :drinking:
--- Quote from: the bruce on January 20, 2013, 02:57:02 am ---Don't mind about brake cooling in the winter. It doesn't realy matter if the pads have -10° or +50° C compared to 500°C on the track.
--- End quote ---
It is very had to get some heat in the brakes to make them work properly (as a daily drive) in winter...
Regarding the progress... I found a spare hub (didn't want to pay for a new one) and when I get my hands on it I will start with the brake ducts.
rex:
Today I got some time and parts and I started working on the brake ducts...
First, here are the brake ducts (3m of them):
And the air inlet for them:
Then, I took one of my wheels off the car and I wanted to see where the brake ducts will fit best.
As you can see, there are 2 possible mounting points:
Above the sensor (I think this is the ABS sensor):
Or below the sensor:
Unfortunately when steering the car, if the brake vent is below the sensor, there is not enough room. So, only the position above the sensor is ok.
Next, I put the parts together in order to build a prototype...
Hub + bearing:
Nqsbbk J hook rotors:
As you can see, the air is not directed to the center of the rotors (and vanes). So I have to create a piece to direct the air towards the vanes:
And the finished piece:
Because the air inlet for the ducts is Aluminium I think I will make this piece out of Aluminium also and weld it to the inlet.
Next I will need to get my hands on a dust shield and see how I can attach the air inlet to it.
I will keep you posted!
Any advice is welcomed! :drinking:
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