Brake Rotor Question.

[CJ-95GT]

I got a wobble upon breaking and planned to get the front rotors turned. Would it be wise to get all four done?

[CYAZ06]

95 GT???? Is that the year of car? Stock rotors? Little more info please.

BTW......you can do them for $15 a piece at Oreilleys.

[CJ-95GT]

07 Gt. Any O'reilly location?

[Dan12gt]

Google

[90MarkVII]

I got a wobble upon breaking and planned to get the front rotors turned. Would it be wise to get all four done?

Braking.

At least have them turned in pairs. Make certain you mic them first to make certain there is enough material to safely machine them.
Definately buy new pads, and make sure you bed them properly.

[CYAZ06]

When you bed pads, use the old pads to lay down the bedding material, then replace them with the same compound (new) pads after you have a nice layer of material on the rotors. NEVER use new pads on freshly turned.....or new rotors.

[90MarkVII]

When you bed pads, use the old pads to lay down the bedding material, then replace them with the same compound (new) pads after you have a nice layer of material on the rotors. NEVER use new pads on freshly turned.....or new rotors.

No offense, but you just gave advice in direct opposition to Baer, Wilwood, Brembo.
I have no doubt you know what you are talking about, so please re-educate me.
Note: do not read sarcasm into my post. Serious question.

[JimD]

No offense, but you just gave advice in direct opposition to Baer, Wilwood, Brembo.
I have no doubt you know what you are talking about, so please re-educate me.
Note: do not read sarcasm into my post. Serious question.

X2

[BlackGT]

i've used new pads on new/freshly turned rotors without issues. Just rub the pads on smooth concrete, with light pressure in a circular motion a few times before installing them.

[CYAZ06]

No offense, but you just gave advice in direct opposition to Baer, Wilwood, Brembo.
I have no doubt you know what you are talking about, so please re-educate me.
Note: do not read sarcasm into my post. Serious question.

No problem. Questions are always good. Keep in mind guys, that this is what we have found to be the most effective for race and performance driving applications. With that being said, we follow the same procedure for street applications to get the most life and performance possible.

Since you are using the same rotors and they are already "seasoned" you should be fine with the new pads. There are a million discussions out there about this, and 10 different ways to do it. We have found that you never combine new rotors and pads, and they last a lot longer, and offer better braking. Since you are using rotors that have already been "seasoned", you will be fine with the new pads.

However, I thought I would at least give and explanation to why it is a "Better" idea to:

old pads - new rotors
new pads - old rotors

In the racing or DE world, we never put new rotors and new pads together. If I buy a new set of rotors I "season" them with old pads because when you have new pads and disc's you are burning the resins and binders out of the pads, at the same time the disc is burning its impurities out and is in a very porous state.

You will end up 'dirtying' the disc surface with garbage that will take a long time to clean out, in the meantime you seriously degrade braking performance. It may not be apparent in day to day driving, but would be in an emergency stop. You also stand the chance of generating too much heat too quickly in both the disc and pad, something that should be avoided for both efficiency and life, at least until the internal stresses in the rotor have stabilized.

Also, here is a quote from Baer Brakes:

" If possible, new discs should be bedded with used pads of the same compound that will be used going forward."

The idea is that the pads will have already gone through the process of releasing bonding resins and other residuals from the first bedding in process, will have already established the taper due to caliper design to create a good relationship to the rotor surface and will be more effective in "seasoning" the new rotor.

Old proverb:
New pads, old rotors
Old pads, new rotors

You should not bed new pads on new rotors. You should "season" new rotors with used pads. (Preferably the same brand of pad you're going to be using)

First seasoning you should bring your rotors up to 50% racing temps. Then, the rotors should cool to ambient temps, preferably overnight. Second seasoning should be up to normal racing or tracking temps and again cool as described above.

Bedding new pads can then be done on those seasoned rotors.

[90MarkVII]

Makes too much sense.
Filed away for future ops.