brake cooling / ducting

sunealio · 10-19-2010, 07:13 PM

Has anyone been using a brake cooling kit on Z4M? Or fabricated one with ducts, hose and backing plates?

Stock brakes are overheating with PFC-01 pads and Motul 600 fluid. A friend used brake ducts on his E46 M3 to good results, and I was looking to try the same before a big brake kit.

RussRamz · 10-20-2010, 03:05 PM

Yes, I have a custom designed set of duct work on mine with a BBK already installed. It really is a great improvement.

esqu1re · 10-20-2010, 03:27 PM

Quote:

Originally Posted by sunealio

Has anyone been using a brake cooling kit on Z4M? Or fabricated one with ducts, hose and backing plates?

Stock brakes are overheating with PFC-01 pads and Motul 600 fluid. A friend used brake ducts on his E46 M3 to good results, and I was looking to try the same before a big brake kit.

If you can't make one, try enlarging the two inlets on the front bumper (on top of the fangs). That should let more air into the wheel well.

mhrir · 10-20-2010, 09:01 PM

The ducts are easy to open, but lets be honest... The air ducts point at the tread of the tire. It is not doing much.

I would be really interested to see some pictures to get some ideas for custom ducting. I have just purchased some parts and will be posting my ideas soon.

jmillet · 10-21-2010, 02:56 AM

Quote:

Originally Posted by sunealio

Has anyone been using a brake cooling kit on Z4M? Or fabricated one with ducts, hose and backing plates?

Stock brakes are overheating with PFC-01 pads and Motul 600 fluid. A friend used brake ducts on his E46 M3 to good results, and I was looking to try the same before a big brake kit.

I run PF-01 pads and Ate TYP200 brake fluid and have never experienced any brake overheating or fade. Do a cool-down prior to bringing the car back to the paddock and things are OK. Your Florida heat and humidity may be an extenuating factor.

jragan · 10-21-2010, 07:39 AM

Quote:

Originally Posted by jmillet

I run PF-01 pads and Ate TYP200 brake fluid and have never experienced any brake overheating or fade. Do a cool-down prior to bringing the car back to the paddock and things are OK. Your Florida heat and humidity may be an extenuating factor.

+1 WHS but I'm in 100+ degree with Texas heat and haven't had a problem.

If you had DSC on, then it's not the stock brake setup that was your problem with the brakes over heating.

DerekSelmanRacing · 10-21-2010, 11:33 AM

You may find this helpful in addition to the cool down lap, I always pop the hood entering the pits and open it fully immediately after stopping. Engine bay heat tends to heat sink the master cylinder and abs box.

3002 tii · 10-22-2010, 10:35 AM

Doesn't TMS offer a brake duct kit?

ga41 · 10-22-2010, 10:50 AM

Quote:

Originally Posted by Dubbedown

Doesn't TMS offer a brake duct kit?

I couldnt find any for the Z4 M on their website. There are a few for E46 M3's and for other models but i'm guessing they wouldnt fit.

lucid · 10-22-2010, 05:23 PM

A difference of 10C-20C in ambient temprature will not change much. Heat transfer to the environment is proportional to t_rotor-t_ambient. t_rotor will be >> t_ambient, so driving when it's 10C or 30C isn't going to make a major difference when it comes to brake cooling/overheat, etc...

10-19-2010, 07:13 PM	#1
sunealio New Member 4 Rep 28 Posts Drives: Z4 M Roadster Join Date: Jul 2007 Location: FL iTrader: (1)	brake cooling / ducting Has anyone been using a brake cooling kit on Z4M? Or fabricated one with ducts, hose and backing plates? Stock brakes are overheating with PFC-01 pads and Motul 600 fluid. A friend used brake ducts on his E46 M3 to good results, and I was looking to try the same before a big brake kit.
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10-20-2010, 03:05 PM	#2
RussRamz M Slut 18 Rep 564 Posts Drives: 2011 M3 Coupe Mineral White Join Date: Sep 2007 Location: Adenau, GE via 3 years in dreadful El Paso, TX iTrader: (0)	Yes, I have a custom designed set of duct work on mine with a BBK already installed. It really is a great improvement. __________________ You have to be 100% behind someone before you can stab them in the back. David Brent
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10-20-2010, 09:01 PM	#4
mhrir Private First Class 23 Rep 147 Posts Drives: Very fast Join Date: Jul 2009 Location: In the garage iTrader: (0)	The ducts are easy to open, but lets be honest... The air ducts point at the tread of the tire. It is not doing much. I would be really interested to see some pictures to get some ideas for custom ducting. I have just purchased some parts and will be posting my ideas soon.
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10-21-2010, 11:33 AM	#7
DerekSelmanRacing Second Lieutenant 8 Rep 222 Posts Drives: 05 Z4 3.0 SMG, 01 530 Join Date: Jul 2008 Location: Lake Havasu City, AZ. iTrader: (0)	You may find this helpful in addition to the cool down lap, I always pop the hood entering the pits and open it fully immediately after stopping. Engine bay heat tends to heat sink the master cylinder and abs box.
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10-22-2010, 10:35 AM	#8
3002 tii Lieutenant General 2280 Rep 12,565 Posts Drives: Z4 M, X5, GX460 Join Date: Apr 2008 Location: CT iTrader: (99) Garage List F15 X5 xDrive35i [8.75] E86 Z4 M [10.00] F10 550i (Retired) [9.17] F25 X3 xDrive35i (R ... [9.43] E82 135is (Retired) [9.50] E85 Z4 M (Retired) [9.41] E90 328i xDrive (Re ... [9.25] E86 Z4 3.0si (Retired) [9.20]	Doesn't TMS offer a brake duct kit? __________________ Follow for latest mods
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10-22-2010, 05:23 PM	#10
lucid Major General 374 Rep 8,033 Posts Drives: E30 M3; Expedition Join Date: Apr 2007 Location: USA iTrader: (0)	A difference of 10C-20C in ambient temprature will not change much. Heat transfer to the environment is proportional to t_rotor-t_ambient. t_rotor will be >> t_ambient, so driving when it's 10C or 30C isn't going to make a major difference when it comes to brake cooling/overheat, etc... __________________
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