sweet
Two piece 13" Cobra front rotors now available in two versions
- Thread starter ac427cobra
- Start date
Its in his post...
hey bruce is there any chance you will be making rear sets of these as well? i'm going to be going to 2 piece rotors at some point but as it's just a street car with very rare track duty, i want some rears to match. i was looking at baer eradispeeds, but i'm kind of concerned with stress cracks being that they're drilled. 
hey bruce is there any chance you will be making rear sets of these as well? i'm going to be going to 2 piece rotors at some point but as it's just a street car with very rare track duty, i want some rears to match. i was looking at baer eradispeeds, but i'm kind of concerned with stress cracks being that they're drilled.
Brandon:
We will eventually be getting into the stock rear Cobra 2pc rotor replacements.
But................. MUCH sooner than that we will have a Cobra IRS 13" rear brake conversion kit with a caliper relocating bracket to retain your existing caliper and E-brake. This kit will have 2 pc rotors that will match (in looks) the front rotors we are currently making. The rotor rings will obviously be thinner on the rear.
We're shipping the prototype kits today and they should be installed this week. Testing will officially begin!
Stay tuned for some pics!
:thumbsup::coolman::beer:
oh good stuff! thanks bruce :beer:
about the 13" rear kits, what's the advantage of this over a stock size replacement? do the rear brakes not work well enough with the stock sizing? i would imagine the 13" works better due to leverage over a larger rotor, but this would also add weight as well right? also would something need to be done with the proportioning valve?
i guess what i'm getting at is would the 13" upgrade be worth it for a street car?
anyway i know you said you're still working on it so i apologize if i'm getting way ahead of you with the questions :beer:
about the 13" rear kits, what's the advantage of this over a stock size replacement? do the rear brakes not work well enough with the stock sizing? i would imagine the 13" works better due to leverage over a larger rotor, but this would also add weight as well right? also would something need to be done with the proportioning valve?
i guess what i'm getting at is would the 13" upgrade be worth it for a street car?
anyway i know you said you're still working on it so i apologize if i'm getting way ahead of you with the questions :beer:
No, you're not getting ahead on questions! It's all good! :beer:
Some facts about Cobra braking. All New Edge Cobras, including 2000 Cobra R's, have insufficient rear brake bias from the factory. This was fixed on the Terminators. New Edge Cobras will typically go through 4 or 5 sets of front pads before the rear pads need replacing. Terminators are more like a 2-1 ratio.
A larger rotor gives more leverage to the brakes. This increases braking efficiency and reduces heat.
As far as the weight issue goes, tonight I will have to dig into my rotor weight pics and look for a stock Cobra rear rotor weight. I know I have one, it's just a matter of finding it. I think the weight of the two rotors will be close to the same. The aluminum hat saves a LOT of weight. I will try to get that later.
There should be no need to make any changes with the proportioning valve on either car. The ABS will activate in any emergency stopping situation.
For a street car or track car you are getting a nice benefit for either application. A street car is going to have some nice looking manly size brakes in the rear to match the fronts. The slotted zinc plated rotors and Hardcoated aluminum hats will add an aesthetically appealing look to your car. Track Dawgz get more braking in the rear which is especially important for New Edge vehicles. They are also getting more braking with out adding any rotating mass which is a huge bonus. If Terminator owners see too much rear brake on the road course with this kit they can simply dial back their brake pad compound a notch or two.
:thumbsup::coolman::beer:
Ok, I found the rotor weights. The Ford OEM rear Cobra rotor weighs in at 11.76#. The FTBR 13" rear conversion rotor comes in at a slight weight savings at 11.52#. Not much, but a weight savings nonetheless!
:thumbsup::coolman::beer:
:thumbsup::coolman::beer:
so if we have a terminator already we don't need to worry so much about this?
i need to figure out if i'd prefer the rotating mass weight savings of the smaller lighter 2 piece rears or the better looks of the 13 inch rears. :read:
what kind of rough timeframe do you think you're looking at on being ready for the upgraded size rears and the stock size rears?
also do you still have the street set of the 2 piece fronts or did they sell?
also if there's a gb on these i'd definitely be interested :rockon:
If you're driving on the street with street pads you will NEVER have to worry about this!
Standard 2 pc rear Cobra rotors are going to be some time yet. 6 months at the minimum.
The 13" rear conversion kits should be available this Fall.
The lighter weight version street/strip rotor set is available to the first buyer that would like them!
:thumbsup::coolman::beer:
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Proportioning valve.
Like I previously stated, street use will never be an issue. For track use Terminator owners may have to dial back their rear pad compound a notch or two.
Drop me a PM with your contact info and I'll get you wait listed. I know you want a 2 pc road race front set. The 13" rear conversion kits will be a short wait yet.
:thumbsup::coolman::beer:
You really can't hawk products on CC. Just used and unused parts.
The road race set are going to the track for some R&D soon. Once I have the 13" rear kit R&D'd a little more then I can go ahead and make up another batch of hats and rotors.
We still have the street/strip maximum weight savings rotor set available.
Good things come to those that wait! :thumbsup:
Does the 13" rear conversion use the stock caliper? I need some better braking. Last time I was at Nurburgring Nordschleife, by the second lap, I had some serious brake fade. I am running stock size Powerslot rotors and Hawk HP+ pads. I need to reconnect my cooling kit and get some more upgrades. Needless to say, sign me up for the waiting list.
I a very interested in the front heavy duty rotors when you guys decide to manufactur some more. Keep me updated and I will send a deposit if needed.
Yes, our kit utilizes the OEM caliper with a relocating bracket. The larger rear rotor will reduce heat soak on the rear brakes.
Regarding your brake fade; I think you made your first mistake going to the ring without brake cooling. Second mistake is trying to drive the ring on HP+ pads.
I don't know how fast you're going, what kind of tires you're on or how much you're relying on the brakes but I think you'd be much better served with a dedicated set of track rotors and higher temp pads for when you head to the ring!
FWIW
Ok, you're the second one! We're making some progress here!
So far we have the two following people looking for the heavy duty road race versions of the 2 pc rotors.
mu22stang
Helomech74
If you're not on this list and you're interested, let me know.
I'm heading out this afternoon for Alaska returning on the 15th. So be patient, I will have spotty email access at best!
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