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View Full Version : To turn or not to turn


Kafn8td
03-09-2007, 01:37 PM
Putting new pads on the Cobra and changing the fluid out. Should I turn the rotors? The Cobra rotors are quality stuff and I've heard both yes and no. I don' have any vibrations or pulsing.

John? Mikey?

edit - I figure I might as well throw braided lines on there also. Anyone have a source?

mcafferty
03-09-2007, 01:48 PM
option 3 replace with Swiss cheese and slotted one they do well in this climate

Smooth
03-09-2007, 01:48 PM
Turn 'em. You should at least have 'em done to break the glaze.

Kafn8td
03-09-2007, 01:55 PM
option 3 replace with Swiss cheese and slotted one they do well in this climate

Thought about it, but no reason to (other than the bling factor).

I've read a few posts on other boards that say to use a green scotch brite pad to break the glaze. If they are not pulsing or vibrating, no reason to turn them. I duuno?

FASTANG
03-09-2007, 02:43 PM
If they are not pulsing or vibrating, no reason to turn them. I duuno?

That's my take on the subject too.
If it's not needed, why do it (unless it improves performance, of course)

Smooth
03-09-2007, 03:20 PM
Personally, I never replace pads without having my rotors done. I'm not sure how you brake the glaze with Scotchbrite pads...not saying it can't be done though. I like to know that I have a fresh, true surface to work with. Carquest or whatever that place is behind DQ does 'em for $15 each.

Kafn8td
03-09-2007, 03:40 PM
Cheap enough to turn them that's for sure. Scotch brite will break the glaze easy enough, I've done that before when I just didn't care (94 Grand Cherokee with 130 miles). LOL

One of the posts I read talked about when you turn them it promotes warpage (due to being thinner), they don't dissapate heat as well, blah blah blah. I don't think I hammer on them hard enough to matter, but thought I'd ask.

Smooth
03-09-2007, 04:36 PM
One of the posts I read talked about when you turn them it promotes warpage (due to being thinner), they don't dissapate heat as well
I s'pose that could be true. I know I never get going fast enough to really heat 'em up during braking anyway. Remember, our car's yellow.:)

OrangeFox
03-09-2007, 05:22 PM
I would turn the rotors if you are replacing the pads, just to get the ridges or anything off the rotors. Will keep the new pads nicer as well. Shouldn't have a big problem with warpage either because your car doesn't have a ton of miles on it and they have never been turned before. They should only have to take off about 3 thousandths anyways.

Kafn8td
03-09-2007, 05:57 PM
Will do...anyone wanna help? Going to put speed bleeders on, Porterfield R4s pads and probably braided lines up front.

BlownSVT
03-09-2007, 06:13 PM
what kind of pads are you going with? oem? i am in need of some new pads this spring and i have heard people have problems with some of the after market pads.

Kafn8td
03-09-2007, 06:17 PM
Porterfield R4-S. http://www.porterfield-brakes.com/pads.html

OrangeFox
03-09-2007, 06:52 PM
When you planning on doing it Rick? I could take your rotors to work and turn them for you one day.

Video_Master
03-09-2007, 07:02 PM
Porterfield R4-S. http://www.porterfield-brakes.com/pads.html

Where do you get them from?

Kafn8td
03-09-2007, 09:10 PM
Thanks Jon that's quite the offer! Maybe I have something I can trade... :)

Pretty much anyone that carries brakes can get them. I have been told, but don't know if it's true is they are a huge manufacturer and they make a majority of the different brand name pads. They also a large sponsor of a lot of the amerature racing scene on the west coast.

Video_Master
03-09-2007, 09:28 PM
Hmmm, can't find them on Jegs or Summit. I will have to check around to other stores. How does those compare to the Hawk HPS pads?

No1Ford
03-09-2007, 09:34 PM
Will do...anyone wanna help? Going to put speed bleeders on, Porterfield R4s pads and probably braided lines up front.

So what day are you planning on? Get them turn or you be sorry after about 4000 miles or so.

Kafn8td
03-09-2007, 09:45 PM
So what day are you planning on? Get them turn or you be sorry after about 4000 miles or so.

Should have them next week. Might rip it apart next weekend.

I don't think I have ever turned rotors on a car :haha: A certain foreign car that shall remain nameless had over 100,000 miles on the original brakes when I replaced the pads on it and sold it at 230,000 with those brakes still on it. The jeep I spoke of earlier had 2 sets without ever having the rotors (or rear drums) turned.

GMan
03-09-2007, 10:28 PM
Yo Kaf, When are you gonna do this? I may want to help.

Kafn8td
03-10-2007, 09:19 AM
Going to try and clean the garage today. Might even get the cover off and get it up in the air.

GMan
03-11-2007, 10:05 AM
:uhoh: Yo Rick. It is Sunday morning and we are still in Wisconsin. Won't make it home until 5PM or so. We have Gopher Hockey tickets, for tonight as the Bucked Tooth Rodents lost last night and need to play the extra game Sunday night. I would love to help you with the brakes though.

Shadowgray03
03-12-2007, 08:33 AM
Just be carefull ive heard that ifyou get air in the lines its a real b$%#h due to the ABS.

Kafn8td
03-12-2007, 10:25 AM
Thanks Larry...probably too late though...uh oh!

crazyfoci
03-16-2007, 05:48 PM
bleeding them aint that bad. just takes patience (which I have alot of). you should turn em but I dont think itll kill ya not to make sure to save those old pads though cause they still good

Dustin
03-18-2007, 11:51 AM
Rick -

Have you done this project yet ? if not, if you'd like an extra hand, feel free to call me / pm me, and i'll drive over after work later this week if you'd like.

~Dustin

Kafn8td
03-21-2007, 07:32 AM
Well took the red rocket out last night and "seated" the brakes.

First thing I noticed is less effort in braking. 2nd thing I noticed, ABS is very easy to activate now. LOL

They stop better than the stockers without question, with less effort. All we have to do now is see if their claim of less dust is true!

OrangeFox
03-21-2007, 07:42 AM
So you didn't turn the rotors then?

Kafn8td
03-21-2007, 08:39 AM
No, decided not to. It was split about 50/50 on the best course of action, so I decided not to. If the wobble or do something weird I can have them off in about a half an hour and can have them turned.

So far they are operating better than stock. We will see in the long run.

Video_Master
03-21-2007, 09:22 AM
How has the brake dust been so far? Also how many miles have you put on since you changed the pads?

Kafn8td
03-21-2007, 10:38 AM
Enough miles to seat the brakes and thats it.

Video_Master
03-21-2007, 11:43 AM
ok, please keep us informed as I am holding off ordering my new pads till I hear your results with these pads.

Kafn8td
03-21-2007, 12:50 PM
Will do. I'll also keep ya updated on how the rotors hold up.

Video_Master
03-21-2007, 12:55 PM
awesome thanks Rick.

Kafn8td
03-23-2007, 07:05 AM
Put 60 miles on it yesterday. Stop and go, a few high speed stoppies, freeway etc.

They work great and stop way better than stock. No noise at all. Doesn't seem to matter cold or hot, they stop the same. Dust level is probably the same as stock. Maybe a little less, however I was told by a friend that the dust level goes down with a little wear.

Kafn8td
04-06-2007, 06:12 PM
update - They are earning a "B" average, with the stock brakes being a B-. Stop a little better and a little less dust. They do make a little noise at very low speed (less than 5 mph) but so did my stock brakes.

Grenade
04-06-2007, 07:24 PM
update - They are earning a "B" average, with the stock brakes being a B-. Stop a little better and a little less dust. They do make a little noise at very low speed (less than 5 mph) but so did my stock brakes.

Nice info, I need to replace my stockers for the track day in june.

Kafn8td
04-15-2007, 07:25 AM
Update #2. Decided that the brakes were not seating properly. Had the rotors turned and scuffed the pads up.

They are now earning an "A" and are close to an "A+"!

Shadowgray03
04-15-2007, 07:34 AM
Where did you end up sourcing lines?

Smooth
04-15-2007, 03:22 PM
Update #2. Decided that the brakes were not seating properly. Had the rotors turned and scuffed the pads up.

They are now earning an "A" and are close to an "A+"!
Hate to say it, but, ah nevermind.:)