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Old 22 January 2010, 05:32 PM
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urban
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Default Ferodo DS2500

Anyone got these?

I had these fitted several months ago together with EBC grooved discs

Today I took my 3 Belgian suppliers out for a blast on a country road.
I did 3 runs round this wee country road
Out of the factory - quick blast up to junction and brake.
Then longer blast round back road with hard braking to stop from about 110mph then back down again and hard on brakes at similar speed.

Pick up passenger 2 and do same thing, then passenger 3

On third run the brake fade was pretty bad and quite a lot of smoke from both front discs/pads

OK - this never happens(as in being used like that), but at the price of the pads I didn't expect so much fade and now they just don't have the same bite anymore?
Whats that all about?

Cheers,
Shaun
Old 22 January 2010, 07:19 PM
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shepster
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Hi,Pads are good i have had them fitted for years without any problems even on my BBK. I think you may just be asking to much from your setup.
Old 22 January 2010, 09:40 PM
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I have DS2500 with DBA discs, never experienced fade. Consider some better quality front discs.
Old 22 January 2010, 10:19 PM
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Adidas
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Got them on the track day 205 GTi.

Never had a problem or fade with them when I was running it as an everyday car.

Only complaint was they made the wheels very dusty
Old 22 January 2010, 10:28 PM
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Tazz Kill Er
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I've got them in my classic with grooved discs up front and they are the dogs danglies for the sort of driving you have described.

It sounds like you have glazed the pads, did you bed the pads in properly as in through several gradually harder stopping runs with adequate cool down between.
Old 22 January 2010, 10:34 PM
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ratboy
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Have only heard good things about them....until now.....
Was planning on getting some on the next change over.
Old 22 January 2010, 11:00 PM
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urban
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Originally Posted by Tazz Kill Er
I've got them in my classic with grooved discs up front and they are the dogs danglies for the sort of driving you have described.

It sounds like you have glazed the pads, did you bed the pads in properly as in through several gradually harder stopping runs with adequate cool down between.
Bedded in as instructed.
Gentle braking for a couple of hundred miles then some harder braking.

OK i appreciate what I did today what abnormal, but I didn't expect the fading
Old 22 January 2010, 11:10 PM
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Tazz Kill Er
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Originally Posted by urban
Bedded in as instructed.
Gentle braking for a couple of hundred miles then some harder braking.

OK i appreciate what I did today what abnormal, but I didn't expect the fading
There be your problem, what you have done would be ok for road pads but these pads need to be run through some serious heat changes before they are at there best,

With used discs it's very easy, six hard stops from 60-30 then let them cool without stopping, then same again 80-30, then 100-30 all done on your private test track of course. All this has to be done without activating the abs, i did this by removing the abs fuse, the brakes were so much better without the fuse but thats another topic.


do a search on here and you will find similar instructions.
You will need to deglaze the pads and then run through the proceedure.
Old 23 January 2010, 05:20 PM
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Bez300
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I,v run them, its not the pad its your discs, line and fluid.
DS2500 on the track every corner they were there for me, defo not the pads.

Bez
Old 23 January 2010, 06:06 PM
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dunx
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I ran them on my std. STI discs, but the Performance Friction set-up is far more capable, IMHO.

dunx
Old 23 January 2010, 10:31 PM
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tsl202
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i've the DS2500 with gr.N discs all around and superb braking with no fade, as i'm from Belgium i play in Francorchamps and Nurburgring ! the problem are your discs.
Daniel
Old 25 January 2010, 09:38 AM
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urban
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Originally Posted by Tazz Kill Er
It sounds like you have glazed the pads
I thought that grooved discs prevented this?

Originally Posted by tsl202
i've the DS2500 with gr.N discs all around and superb braking with no fade, as i'm from Belgium i play in Francorchamps and Nurburgring ! the problem are your discs.
Daniel
What make are your group N discs?
Old 25 January 2010, 11:59 AM
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Assuming you bedded the pads in properly, they're unlikely to be the cause.
How old is your brake fluid?
if you're using a hygroscopic type fluid (dot4), then perhaps it needs to be changed. It will absorb moisture and can start to boil. This will create bubbles. It feels very similar to brake fade.
Old 25 January 2010, 12:26 PM
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DS2500 pads are horrid IMO. Def pad issue - they can't stand being hot.

PF z rated pads are much more up to the job and work out cheaper too.
Old 25 January 2010, 12:39 PM
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Originally Posted by dynamix
DS2500 pads are horrid IMO. Def pad issue - they can't stand being hot.

PF z rated pads are much more up to the job and work out cheaper too.
Completely agree

I had the DS2500's and could never get on with them.

Changed to the Performace Frictions and find them leagues ahead.
Old 25 January 2010, 01:39 PM
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urban
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Originally Posted by dynamix
DS2500 pads are horrid IMO. Def pad issue - they can't stand being hot.
We'll the smoke was definately coming from the pads as opposed to the actual disc

Originally Posted by scunnered
Assuming you bedded the pads in properly, they're unlikely to be the cause.
How old is your brake fluid?
if you're using a hygroscopic type fluid (dot4), then perhaps it needs to be changed. It will absorb moisture and can start to boil. This will create bubbles. It feels very similar to brake fade.
Fluid changed together with pads and discs so 2 months roughly

I think thats maybe whats up with it.
Pressing pedal before had an instant bite whereas now you need to press it a bit harder to get that bite.

Last edited by urban; 25 January 2010 at 01:42 PM.
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