Ok, so here's the deal... EVO 8 RS 36K, before my first track event i replaced the pads as they only had a little life in them. I replaced the stock Brembo's with Project Mu B-Force.

Long story short, squealed like hell even after bed-in procedure. i followed instructions from here: http://www.stoptech.com/tech_info/wp_bedinstock.shtml

Of course, I did all of this all the night before the event. On the way to the event I did some left foot braking to try to bed them in more. At the track, the first run very loud, sounded like a full race pad.

After the event, things quieted down a bit although i thought the braking was a little weak (but figured it was in my head). For the next month, the pads were loud when warm or under longer braking. I learned to live with it and modified my driving style on the street to brake later and harder to avoid the squeal.

(a few months pass by)

I get tired of the loud pads and decide to re-install with Castle "Brake Squeal Eliminator" spray and try Girodisc "anti-squeal" shims. It worked for about 4 days but then returned to squealing.

Now, here's where it gets interesting... I just changed the pads this morning back to the original stock Brembo pads and stock shims (just for giggles). I followed the same bed-in procedure. BUT IT NOW BRAKES MUCH BETTER. Not just initial bite or when cold. This is after a series of 80-10 stops. Seriously, night and day difference. And, there is no squeal (yet).

So, is it possible the Project Mu pads never bedded in? Would that explain why they didn't stop very well? And, what do I do now? Should I give up on the Project Mu pads and go with something else? Could they be defective? They look ok, but honestly, I don't know what to look for in the pad to tell. Is there anything I can do (like sanding?) to help assist these new pads with bed-in?

Thanks for reading! Turned out to be quite the story...

 

I had a similar experience with project Mu B-force pads, they were my first set of replacement pads. I bedded them in but they always seemed to squeal a little and never seemed to stop that great although I thought they held up to the heat of repeated abuse better than stock. They are definitely not meant to be track pads though either, only a mild street upgrade. I gave up on the P Mu's and haven't looked back, the best pads I've had so far are from Racing Brake, ET800 were amazing and I'm sure the 700 are great too.

 

The problem is the Project Mu B-Force pads. I had them before and I really think they are worst than stock. I'm running Ferrodo's now and couldnt be happier.

 

I have tried Project Mu pads before. I had similar results to what these other guys are saying. They almost did feel worse than stock.

 

thanks for the comments. i am glad i am not the only one, but pissed i am out $300.

i guess i will use them for track only, but i have a feeling i will be slower because i felt my stock Brembo's held up better when hot (10 or so 80-10 stops).

anyway, could the pads could be glazed? can i sand/file them? or, anything else i can do?

it's strange, i searched the forum before i bought the pads... a lot of people liked them

 

Got any pics of your pads. Looking for the actual friction material. I'm pretty sure I know why the pads are loud, but would like to see a pic to confirm. As for the performance. I will never run anything besides Carbotech's again (xp 12's) They hardly make any noise, work amazingly in any temp that I've driven the car in so far, and on the track WOW, you can late brake every corner for 20 min non stop and never have a problem. I probably get 500 track miles out of a set if not more.

 

I have the hawks hps front brake pads and it made no sounds/squeals what so ever, just until the brake-in. i sanded them down and around and put a shyt load of shim grease and it still screams, they seemed kinda glazed but they still work under high tmps. no squealing when cold but when hot it sounds like hell but with hard braking no sounds. I think its all in the pads sanding will not help as far as I know.

 

Here is what I've come to notice about EVO brake pads, reguardless if they are street pads or full on race pads. The pads seem to form a lip around the edges of the pad. Since the pads have a decent amount of wiggle room even with the pin in place they like to move around just enough to touch different area's of the rotor and squeal, squeak. The only solution I've found is to remove the pads and grind a chamfer around the edges of the pad. This works perfectly until the pads wear down and the lip starts to form again. I've done this on 3 different sets of brake pads that were sqeaking like crazy and it's worked every time so.

Hawk HP+
Carbotech XP12
Autozone cheap $25 pads


I will post up a pic later on tonight of what this lip looks like that I'm speaking of.

 

I have done that. I grind down the rust on the edges of the rotors' outter lip and the pads edges for my customers and myself. It still doesn't work for me. I just think I did a bad brake-in.

 

No it's not a bad bead in,it's the pads..I had the same problem..Noise little ****ers..went to some hawks Hpplus,still some noises but great stoping power over the Project Mu..

 

heres a good tutorial...

http://www.essexparts.com/learning-center/Bed-in


snip-it