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View Full Version : bedding in new rotors AND new pads??


Karbon
12-28-2007, 03:32 AM
is it the same as bedding in new pads on old rotors?

Should i bed the new rotors with the new pads as "normal"?

or is there some extra special precaution I should take, considering both components are brand new?

I plan to get some EBC HH sintered pads as well as a set of their pro-lite rotors. Are HH sintered pads overkill for street?

If you can point me to other brands of rotors that would be great.

Thnx in advance.

Hooli
12-28-2007, 08:42 AM
Did you clean the new rotors first?

wsmc831
12-28-2007, 09:06 AM
HH pads are great for the street.

The pro-lites are nice, though I have read the buttons occasionally need replacing, but no first hand experience. I have braking waves on one set of wheels, nearly overkill for the street and not cheap.

Karbon
12-28-2007, 11:06 AM
Did you clean the new rotors first?

i certainly will when i get them.

afm199
12-28-2007, 11:27 AM
ride em. You can use them gently for the first hundred miles. On the track I bed in by doing a series of progressively faster quick stops and then letting everything cool off. I do that in the hot pits, not on the track.

Sundog
12-28-2007, 01:06 PM
is it the same as bedding in new pads on old rotors?

Should i bed the new rotors with the new pads as "normal"?

or is there some extra special precaution I should take, considering both components are brand new?
Thnx in advance.

Here is some info and a link that seems to summarize it pretty well I think. There is also a recommended procedure later on. Hope this helps. I think the most important part of breaking in pads is to make sure you NEVER come to a complete stop during the process. Rotors need to keep moving against the pad material when they are hot.


http://www.stoptech.com/tech_info/wp_bedinperformance.shtml

When a system has both new rotors and pads, there are two different objectives for bedding-in a performance brake system: heating up the brake rotors and pads in a prescribed manner, so as to transfer pad material evenly onto the rotors; and maturing the pad material, so that resins which are used to bind and form it are ‘cooked' out of the pad.

The first objective is achieved by performing a series of stops, so that the brake rotor and pad material are heated steadily to a temperature that promotes the transfer of pad material onto the brake rotor friction surface. There is one pitfall in this process, however, which must be avoided. The rotor and, therefore, the vehicle should not be brought to a complete stop, with the brakes still applied, as this risks the non-uniform transfer of pad material onto the friction surface.

The second objective of the bedding-in process is achieved by performing another set of stops, in order to mature the pad itself. This ensures that resins which are used to bind and form the pad material are ‘cooked' out of the pad, at the point where the pad meets the rotor's friction surface.

The bed-in process is not complete until both sets of stops have been performed. There's one exception, however. Some pad manufacturers sell ‘race-ready' pads, which have been pre-conditioned by flame heat-treating or laser etching, to provide a mature surface on the pad face. If race-ready pads are being used, then the second set of controlled stops is unnecessary. Also note that the same circumstances exist when a system to be bedded has new rotors and used pads (a strategy that professional teams use to break in their rotors ahead of time) one only has to perform a single set of stops to transfer pad material uniformly onto the new rotor.

***
For a typical performance brake system using street-performance pads, a series of ten partial braking events, from 60mph down to 10mph, will typically raise the temperature of the brake components sufficiently to be considered one bed-in set. Each of the ten partial braking events should achieve moderate-to-high deceleration (about 80 to 90% of the deceleration required to lock up the brakes and/or to engage the ABS), and they should be made one after the other, without allowing the brakes to cool in between.

Karbon
12-28-2007, 01:43 PM
Oh nice!

thanx!