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MASTER THREAD: Comprehensive Road-Course Modification Guide — Optimizing the 3 for the track
- Thread starter MasterC17
- Start date
Endless EX90 or EX99
(510) 683-0000
[email protected]
or
Phone: (949) 380-0801 ext. 2
E-Mail: [email protected]
Cobalt Friction - XR2
Cobalt Friction Racing Brake Pads
Raybestos ST43 - I think currently out of stock.
https://www.knsbrakes.com/c/car-ser...3+Base/969_Raybestos+ST43+Brake+Pads+-+Custom
I had wanted the raybestos but yes pretty much unable to purchase.
How do the cobalts/endless stack up against the carbotechs?
I'm not a fan of Racing Brake as a company, but the XT-970 did admittedly work well on the rear axle. I got 15 days out of them. They are cheap.
Carbotechs are actually a little cheaper I think than those. I have been running the XT910 all around and they have been fine.
MarcG
Active Member
MarcG
Active Member
I got two track days out of my front XT910s, then they were toast.. and this is on RB’s own rotors. One of which I had to replace because the pads went down metal-to-metal. I must brake a lot harder than you
I got two track days out of my front XT910s, then they were toast.. and this is on RB’s own rotors. One of which I had to replace because the pads went down metal-to-metal. I must brake a lot harder than you
Because I have only been autocross! Started doing and track and immediately noticed issues...hence wanting to upgrade!
Heard the same noise complaints about carbotech and so wanted raybestos, but those are impossible to get so...
XT-970's were nearly silent. Carbotech RP2's were absolutely not quiet.
More like if you never hit the brakes lol. If you need to make a stop using friction they were horrifyingly loud. Good for the track, but not for the street.
There are at least 4 of us (M3Ps) in the UK using Carbotech XP10s for track and road use and no-one has had any squealing issues when braking. We do all use hold mode.
Maybe that's an issue with RP2 compound, but it isn't with XP10 I can assure you.
Clivew
Member
What I’ve noticed about XP10’s is that they stay quiet if used hard, but if pampered, after a while they seem to glaze and will then squeak when used at low speeds. After a good hard stop, they are quiet again.
I just finished my Endless EX90 pads, it has about 25% left and it really is unsafe at this point. I think I have a total of 8 track days on it, but I normally don't run more than 2-3 laps on it per session. They are rotor friendly and are fairly quiet (they will still make noise). They are a good beginner track pad, but I would not recommend it for people that have been to the track. I personally think it is more of a street pad than track pads.
I should add I am only getting this life from babying it (I never do more than 2 laps back to back).
I should add I am only getting this life from babying it (I never do more than 2 laps back to back).
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