Aftermarket rotors or all new brake system?

2013 Geee T · Jul 26, 2007

Im sick of these cheap a$$ stock rotors warping all the time. Im not hard on the brakes and the lugs are always hand tightened. I dont need brakes yet but if they get any worse I may have to do something about it.

I saw some replacement Brembo rotors for $63 each. If I were to use those with everything else stock would that make any difference in performance or at least not warp as easily? Would they work fine with factory Ford pads? I would put new ones on of course.

The other option of course is the Cobra brake upgrade at $600 which I dont feel like spending right now.

SilverBullet00 · Jul 26, 2007

600? Damn buddy, go to buyfordracing.com. I paid 400 SHIPPED for my kit w/ stainless steel lines.

40th GT · Jul 26, 2007

hand tightened lugs? aren't they supposed to be around 100 ft-lbs?

btw, u can buy bullitt brakes, (same 13" system like the cobra's), for $330-ish.

san~man · Jul 26, 2007

40th GT said:
hand tightened lugs? aren't they supposed to be around 100 ft-lbs?

btw, u can buy bullitt brakes, (same 13" system like the cobra's), for $330-ish.

I think he means by torque wrench, and not by air gun/air tools.

40th GT · Jul 26, 2007

san~man said:
I think he means by torque wrench, and not by air gun/air tools.

ah, i see.

2013 Geee T · Jul 26, 2007

san~man said:
I think he means by torque wrench, and not by air gun/air tools.

Yeah, what he said

MrGame · Jul 27, 2007

I want to put cobra brakes on my car too..after one 100+ mph stop they faded (I won't be doing that again) and haven't been the same since

2013 Geee T · Jul 27, 2007

Is the installation just a simple basic swap or is there more involved?

tomustang · Jul 27, 2007

Where are you coming to the assumption of having warped rotors??

2013 Geee T · Jul 27, 2007

I get a slight shaking in my steering wheel while driving on the freeway and when they were really bad I would get a serious shaking in my steering wheel while stopping. And either turning them without doing the brakes or turning them when I needed brakes made it go away.

I think when they are warped it produces a sort of out of balance effect and thats why it shakes the steering wheel while driving. At first I thought it was the tires out of balance or an alignment issue but did them both and it didn't solve the problem.

silver4.6 · Jul 27, 2007

It could also be brake chatter. It has some of the same symptoms as warped rotors.

46gtsblown · Jul 27, 2007

You probably have not warped your rotors, infact rotors rarely warp.
Please read the link provided for answers.
http://www.stoptech.com/tech_info/wp_warped_brakedisk.shtml

Dwayne

2013 Geee T · Jul 28, 2007

I suppose they are not technically warped but have the same thing going on as if they were and resurfacing them is the only way to fix it. Im assuming the Cobra brakes are not as susceptible to this?

46gtsblown · Jul 28, 2007

And I resurface them with a random orbital sander with 80 grit sandpaper.
As long as they are not cracked or with overheated spots in which case I replace them.

Dwayne

Mustang5L5 · Jul 29, 2007

Resurface them

46gtsblown · Jul 29, 2007

Remember rotors are heat sinks, everytime you remove material they will be more prone to overheating and cracking.
If they don't need machining you shouldnt.
Not trying to pick an argument just giving sound advice.

Dwayne

04gth · Jul 30, 2007

40th GT said:
btw, u can buy bullitt brakes, (same 13" system like the cobra's), for $330-ish.

Ive been looking around for these and they are fairly expensive now.....around the 450+ area....buyfordracing wants 500 for them shipped...ouch!

Same thing happens to me with the stock rotors and its time for an upgrade.

Any place to buy these around the 330 price? Thanks

40th GT · Jul 30, 2007

04gth said:
Ive been looking around for these and they are fairly expensive now.....around the 450+ area....buyfordracing wants 500 for them shipped...ouch!

Same thing happens to me with the stock rotors and its time for an upgrade.

Any place to buy these around the 330 price? Thanks

Wow, i didnt realize that they raised the price.

topless98gt · Jul 31, 2007

SilverBullet00 said:
600? Damn buddy, go to buyfordracing.com. I paid 400 SHIPPED for my kit w/ stainless steel lines.

Their $399.00 kit only includes rotors, calipers, pads, and lines to do the front brakes:

10th Anniversary Cobra Brake Package
• Same calipers as used on the 2003 10th Anniversary Cobras!!
• Fits 1994-04 Mustangs / Cobras
• Kit includes:
- 2 New Brembo Brake Rotors
- 2 New 10th Anniversary Brake Calipers
- 2 Stainless Steel Braided Brake Lines
-Includes Brake Pads!!

Quote honestly, if I was doing a brake upgrade, I'd replace both the front and rear brakes and go all out.

Now, if you found a FRONT AND REAR brake upgrade kit for $400...please tell me where, as you'll save me a LOT of money when it comes time to upgrade those bad boys.

rconaway · Jul 31, 2007

I've got a lot of experience with the cobra rotors and calipers. For the most part, they are fine for most driving but they are still 2-piston calipers. My suggestion is to then get Powerslot rotors and a harder pad such as EBC or one of the other performance pads. This way when the pads are gone, the rotors get thrown out also. You won't warp anymore and I've pushed this combination hard on track days.

In addition, get braided lines and flush your system. On the track though, this combination still fades. I'm putting 2000R Brembos on my fronts now to see if this takes care of the problem.

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