Any Good Empty Long Roads To Bed My Brakes In Again?

[SargeRX8]

Last time I tried to bed my brakes in, I done it late at night when no one was on the road. Got to my 4th stop and my brakes got noisy but I persisted. Until two cars came out of no where behind me highbeaming the shit out of me for starting and stopping the car continously. I did have my hazard lights on and gave them enough room to go around but they stayed behind me being wankers. I was thinking of doing it on the M4 towards penrith late at night as I need about 15km of road(for these pads they suggest 60 - 0 x 10 @ 1km with medium braking then 60 - 0 x 10 @ .5km intervals with hard braking). I have been reading everywhere else that you should NEVER come to a complete stop when bedding in the brakes.

The first time I tried to bed them in, they were quiet for the first two stops, then got noisy then became so f**king loud I was embarrassed to continue. Should I push through regardless of how noisy they get? Is there an easy way to clean up the rotors to prep them for a fresh layer of material? I can get them machined but they are almost brand new and the guy I got them from did use different pads. They are slotted rotors and I really don't want to lose the slots.

If a cop sees me doing this, could I get in trouble? I won't be speeding and I will have my hazards on. I need to get it done and I don't have private road or anywhere else to do it.

Cheers.

[AlexanderWilde]

the loud noise may be that one of the pads isn't sitting well in the slot check them properly by taking the wheels of and having a look

also you mentioned having your rotors machined , If your rotors are warped or uneven, this will make a squealing sound

did you put anti squeal compound before you installed the pads? it can dampen the vibrations that cause squealing. its a bluish looking liquid that you apply the the back of the pad where it contacts the piston

do not stop to 0km when biding as it will leave marks on the rotor and cause squeaking and damage ur rotors surface

have a read of this article as everyone i know has done this and worked like a charm : http://www.zeckhausen.com/bedding_in_brakes.htm

[The Bogan]

I would be hitting a county rd during the day, I was also told to do 6 x 100 to slow stops, then let them cool fully to bed them in, it worked fine on my a1rm, should take no more than 3 minutes to do.

[Mick_o]

Wat pads u running mate? I put EBC red stuff pads and rda slotted rotors in my car and they were noisey as hell (ask jez lol) i done half a dozen 100km/h+ stops and it shut them up thank f**k! Wouldnt do it on the M4 especially not down penrith end if u live out west way head out to londonderry way (10mins from penrith) plenty of good long straight roads with nothin but bush around

[SargeRX8]

I live at Parramatta so all them country bush roads are out of the way from me. Ive got the QFM HPX pads, LOUD AS f**k they are. The pads look like they are sitting in the caliper fine. I fitted my old skyline with pads before and never had any noise. Done a few other cars. Its just this car won't shutup. The rotors are practically brand new on the rear. I want to see if I can get rid of the noise without using any compounds or noise dampening shims. I feel they aren't heating up right to lay their material hence the sound and sometimes poor stopping abilities.

What about The Northern road heading towards campbelltown area? These places are all about 25 mins from my place and Ive already been driving on the brakes as they are so I don't know if this is going to have a negative effect on the bedding process.

Edited December 14, 2011 by SargeRX8

[rondofj]

Try Mamre Road, Elizabeth Drive and yes, Northern Road along the Badgerys Creek and Kemps Creek areas after 8pm - nice empty country roads and no mofos with red and blue flashing lights around... I get my flat mate to run my car there sometimes as I'm still under suspension..

[SargeRX8]

Sounds like this might turn into a night out and a cruise than just bedding in the brakes haha. Mamre road was a consideration but Ive been on that road and there are cops there very often. How big are the gaps between your start stops? As soon as you hit speed do you hit the brake again and do them all in a row? This guide for the QFM pads says you need to leave a 1km gap between each stop but that would let the brakes cool too much I think...

[Mick_o]

if ya keen Come out for a cruise to Londonderry dude devlin rd is pitch black at night has no side streets and is in the back of bum f**k can do a few runs there then i can take ya on a effin sweet hills run up springwood rd which isnt far from devlin rd it winds up the mountains its a top drive and quite challenging with plenty of tight stuff and nothing but cliff faces lol check it out on google maps. MANY MANY moons ago devlin rd used to have illegal street drags there so that gives you an idea of the road

[rondofj]

Tell the cop ur just bedding in r brakes and to f**k off lol..

[Ruxis]

I got QFM A1RMs (think that's what there called), I bed them in going 60-0 80-0 100-0 that made them louder, it was so loud it hurt my ears to drive it and was extremely embarrassing, i did it again and they quietened down a little but not much, took it to the track and they still squeaked after that, after a few months after that they were pretty much silent.

P.S wakie tomorrow? Hah

[WalkyHR31]

Yes guys A1RM's are the ones to get. They work really well on the road and the track. I use them on my HR31 ttrack car.

I just bed them in a on the trip down to Wakey (100 down to 50 medium pressure every couple of K's for a few times) and then some finals at the track for the first run of a few slow laps - good as gold!

[Cassbo]

I did mine at Wakefield on Saturday, mainly because I ran out of pads at Wakefield on Saturday

[SargeRX8]

Did you guys do that with brand new pads or have you driven the car with them on? So far Ive done about 200km of normal driving so I might have to sand them before I bed them in. My rotors aren't glazed so ill try to ensure they stay like that until I bed them.

[niZmO_Man]

HPX on my GT-R is a bit noisy (old rotors), HPX on my R31 was a tad noisy (new rotors) but then it shut up after a few thousand kilometers.

Guess you just bed it in as usual and keep driving. HPX only makes noise on light braking at low speed *shrugs*.

[Daleo]

I'd be staying well away from a Freeway bedding brakes in; that's how you get yourself killed.

That's bizarre; I'm running HPX's on my daily 323 and I did all my bedding in around 60km/h. 10 stops from 60-10km/h.

No problems getting enough temperature into them, and absolutely no squealing issues. They're a road pad; surely they don't need this kind of beding in?

Are you sure you haven't actually overheated these pads in your overzealous "Bedding in" strategy? You don't actually need to have fire pouring off them when you do it.

My understanding was that if you overheat brand new pads during bed in; you can actually cause the binding agent to be drawn to the surface of the pad and this can cause the kind of issues you're describing.

Edited December 26, 2011 by Daleo

[niZmO_Man]

[ignore if you weren't referring to me]

I lightly bed my brakes in (light braking, drive around for a while on quiet streets doing low speeds ~40 km/h) essentially slowly heat cycling them.

I rekon I need new rotors (stupid drilled rotors, can't get them machined apparently).

[SiR_RB]

I got project mu NS pads up front on my ap calipers, I was told to do 10 stops from 60 - 5kmh with 1km gap between stop, let them cool then do 60 - 5kmh within 500meters of each stop.

Quiet as a mouse and stops like a mofo

[Daleo]

[ignore if you weren't referring to me]

I lightly bed my brakes in (light braking, drive around for a while on quiet streets doing low speeds ~40 km/h) essentially slowly heat cycling them.

I rekon I need new rotors (stupid drilled rotors, can't get them machined apparently).

Sorry niZmO_Man; I probably should've directed my comments to the OP...

I reckon you and SiR RB are on the right track; I don't understand why people see the need to blaze the hell out of brand new pads, I always thought it was just to activate the binding agent with a decent amount of heat then let them cool, not push a 600deg pad to it's maximum when it's brand new. That way, you transfer some pad material onto the disc; nothing more.

You do the hard braking once the pads are bedded in.

It's much the same argument on new rotors; it takes quite a few heat cycles for them to fully harden for their best chance at a long life.

It's a bit like revving the beans off your stone cold, freshly built engine, without even ensuring you have oil pressure; just because it's a "Race" engine, but I suspect that's another can of worms, for another day...

Edited December 27, 2011 by Daleo

[niZmO_Man]

Exactly, it's about understanding physics (metal fatigue, heat cycles, etc). You don't have to be a physicist to understand the simply concepts.

Be kind to your car, it will be kind to you (unless it's cursed or just a b*tch ).

[SargeRX8]

I haven't done any extreme hard braking yet. They don't need heat in them to be noisy. I start the car, I drive, I go to stop and bam noise. It only gets worse as they get warmer. The first time I tried to bed them in I went from 70 - 5 3 times and they were so f**king loud I was embarrassed to continue. I thought maybe I was doing something wrong like not enough pedal, as some people say you need alot of heat, and I was doing what you suggested, good braking(nothing to slam your head into your steering wheel) then cool down for about 500m then another stop. I cbf with these pads anymore. I tried to bed them in again and I actually thought it worked they weren't making any noise after about 3 slow downs, but now its back to square one, maybe even square zero.