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View Full Version : question, remove front brake dust shields?


ikekakokuk
Thu, Dec-23-2004, 08:33:59 PM
I was under the car the other day doing an oil change
so I thought i'd pop out the brake cooling duct blockers.

I've only owned the car a couple of weeks so all of the
underbelly is new to me. It's a 2002 m3 coupe.

As I popped out the ducts my buddy pointed out to me
"it's not gonna do much good" and showed me the dustshield
on the inside of the rotors.

Should these be the first thing to go?

I'm a newb, first trip to the track will be the drivers edge
event in february at motorsport ranch. I wouldn't be
too concerned with the brakes overheating while I'm running
but I'll be sharing the car with a friend with a lot more experience.

Thanks,
Jesse
Austin, TX

DZeckhausen
Thu, Dec-23-2004, 09:31:51 PM
I was under the car the other day doing an oil change
so I thought i'd pop out the brake cooling duct blockers.

I've only owned the car a couple of weeks so all of the
underbelly is new to me. It's a 2002 m3 coupe.

As I popped out the ducts my buddy pointed out to me
"it's not gonna do much good" and showed me the dustshield
on the inside of the rotors.

Should these be the first thing to go?If you look at the leading edge of the dust shield, you will see that it forms a scoop to duct some air toward the center of the rotor.

Also, note how close the lower ball joint comes to the back of the dust shield. If you remove the shield, you will allow heat to radiate directly from your rotor into the ball joint, possibly cooking the grease inside the rubber boot.

It has been shown time and again that stock M3 brakes can survive track events as long as you remove the plastic blocking plates (which you've done), use a decent track pad, such as Performance Friction 01, and bleed with a high performance brake fluid like Motul 600.

I'm a newb, first trip to the track will be the drivers edge
event in february at motorsport ranch. I wouldn't be
too concerned with the brakes overheating while I'm running
but I'll be sharing the car with a friend with a lot more experience.Given that your friend is an experienced driver, you have two choices for the upcoming event.

Ask your friend to dial it back a bit and avoid overheating the brakes
Install the aforementioned pads & fluid and have a worry-free event.

ikekakokuk
Thu, Dec-23-2004, 10:31:28 PM
i'm leaning towards the second option. thanks for the pointer on the ball joint, which I hadn't
noticed.

cheers,
jesse

edit: haha i just noticed that i apparently joined in april 2003? i think
the server's date might be b0rked (since i joined no more than 2-3 days ago)

SG_M3
Sat, Dec-25-2004, 04:31:59 AM
MSR is going to kill your brakes, its a hard track on brakes. If it was just you driving, it wouldn't be a problem, but I would ask your friend to take it easy.

MSR is a great track, i'll probably be there too.

M3-peat
Sat, Dec-25-2004, 11:35:42 PM
Question regarding the brake dust shields. For everyday driving, do they need to be in or once they are removed(which I have done), can I leave them removed?

thanks in advance.

ikekakokuk
Tue, Dec-28-2004, 09:40:06 PM
Hey SG,

I'll look forward to seeing you there. In fact if you have an empty seat for a ride-along consider me interested. I watched the sub-2 minute lap at TWS and think I could learn alot from a ride-along.
If you don't like giving rides, no problem :peace:


MSR is a great track, i'll probably be there too.

SG_M3
Tue, Dec-28-2004, 10:02:39 PM
No problem, I think I can take passengers with The Drivers Edge.

If you want a wild ride, find Bill Kim or Dave Scott. Both instructor with a silver e36's, great drivers. Both are from Austin too.

ikekakokuk
Tue, Dec-28-2004, 10:51:28 PM
I speak with Bill Kim regularly because he's been doing some suspension work
for me out off his shop in Austin. I haven't met Dave Scott. I'll keep an eye out
for them, and probably one of them will be my instructor I'm guessing.

Jesse

No problem, I think I can take passengers with The Drivers Edge.

If you want a wild ride, find Bill Kim or Dave Scott. Both instructor with a silver e36's, great drivers. Both are from Austin too.

jonam
Tue, Dec-28-2004, 11:59:58 PM
Jesse,
Dave Dillehay with jet black e46M3 or Steve Medina with white e46M3 are good drivers, too, in case you want to see what your car can do. but Dave Scott is a long time great instructor/driver, I heard.
Have fun! :)

SG_M3
Wed, Dec-29-2004, 12:24:37 AM
Jesse,
Dave Dillehay with jet black e46M3 or Steve Medina with white e46M3 are good drivers, too, in case you want to see what your car can do. but Dave Scott is a long time great instructor/driver, I heard.
Have fun! :)

bah, those first two guys are just hacks. :rofl2:

jonam
Wed, Dec-29-2004, 12:45:15 AM
bah, those first two guys are just hacks. :rofl2:
Ask that to Dave Scott. Lap time doesn't lie. :jerkit:

SG_M3
Wed, Dec-29-2004, 06:21:21 AM
it was a joke. I'm friends with all of them. We all track together.

I guess i'm not as funny as i thought. :(

jonam
Wed, Dec-29-2004, 02:39:47 PM
it was a joke. I'm friends with all of them. We all track together.

I guess i'm not as funny as i thought. :(
Ooops, my humor sensor has never been good :beer: :thumbsup: