Installing ATS Brembos on the Cobra.

[Mustang5L5]

I thought someone found a 1 1/8th ford master cylinder we could use back a few pages in this thread?

Searching back, but not finding it.

EDIT: Post 376, but it was determined to be a no-go


From what i can see, the Ford OE masters are 1" bore for the 96-98 and 1 1/16" for the 99-04. The mounting flange is different, so I don't believe they are interchangeable either.

The Baer 1 1/8" MC does seem to be an option...although at $400 and needing some adapter fittings or new lines to the PV.

Black, Right Port, 1.125" (1-1/8"), SN95 (99-04) Hydroboost

 

[Blkkbgt]

Searching back, but not finding it.

EDIT: Post 376, but it was determined to be a no-go


From what i can see, the Ford OE masters are 1" bore for the 96-98 and 1 1/16" for the 99-04. The mounting flange is different, so I don't believe they are interchangeable either.

The Baer 1 1/8" MC does seem to be an option...although at $400 and needing some adapter fittings or new lines to the PV.

Black, Right Port, 1.125" (1-1/8"), SN95 (99-04) Hydroboost

View attachment 1656699

That sucks because that would have saved people $300.

So with that master cylinder, front calipers, insert kit, new pads and rotors (rotors could be optional), rear calipers and new pads what does the total cost come out to?

Sorry but I've loosely been following this thread and am wondering.

 

[Mustang5L5]

So with that master cylinder, front calipers, insert kit, new pads and rotors (rotors could be optional), rear calipers and new pads what does the total cost come out to?

Sorry but I've loosely been following this thread and am wondering.

Prob enough that one may want to consider finding a set of used 00R Brembos and using them with the stock MC and rear 38mm calipers? No need to worry about brake bias, or an undersized MC

I can only think of my costs, but $100-150 for the (used) ATS Brembos. More if you buy new. $40 each for the rear Taurus 43mm calipers. Pads are all over the place. $50-200 depending on which you get? I do not know what the inserts cost. Now toss in a $400 MC and then still needing to adapt the lines. I do realize guys are using the OE MC with these.

Honestly...i'm debating selling my calipers and buying some 00R brembos now.

 

[Blkkbgt]

Prob enough that one may want to consider finding a set of used 00R Brembos and using them with the stock MC and rear 38mm calipers? No need to worry about brake bias, or an undersized MC

I can only think of my costs, but $100-150 for the (used) ATS Brembos. More if you buy new. $40 each for the rear Taurus 43mm calipers. Pads are all over the place. $50-200 depending on which you get? I do not know what the inserts cost. Now toss in a $400 MC and then still needing to adapt the lines. I do realize guys are using the OE MC with these.

Honestly...i'm debating selling my calipers and buying some 00R brembos now.

Thats exactly what I was wondering myself. Going by my math and buying everything new it puts you right at the same price for the 00R kit with less work.

Honestly unless you're willing to go all the way with this kit to correct the bias issue this mod is all about "look at me I've got 4 piston Brembos" IMOP. I say this because I've read what Jack on corral has said about this mod and it not improving braking over the stock cobra setup unless the bias issues is fixed. I have zero reason to not believe what he says in regards to this setup.

 

[Mustang5L5]

I've read what Jack on corral has said about this mod and it not improving braking over the stock cobra setup unless the bias issues is fixed. I have zero reason to not believe what he says in regards to this setup.

He did chime in on a post on the Mustang AUtoX/HPDE Facebook group after the Corral posts and did recommend pairing the ATS setup with the 43mm calipers to correct the bias. I do not know if this is an official MM recommendation and I hesitate to speak for them and say "MM says it's fine", so don't take this post as that.

I still think there are tweaks to be made to get this system perfect. It just frustrates me because I need to do this from the sideline while I do a full resto on my car and have to think hypothetically rather than slap the parts on my car and test them out.

But, my opinion, is that to make the ATS brembos work, you need to pair them with the 43mm rear calipers and upgrade to the 1 1/8" MC.

I'm sure other's may disagree that the stock MC feels fine. That's why we discuss these things in the forum and get others to weigh in.

 

[GodStang]

I am not sure why you say this? My ATS stop far superior to my stock cobras. My Cobras always felt like they were not going to stop you in time. Like the calipers were too small for how heavy the Cobra is. That is completely gone with the ATS. Stops much firmer and faster.

He did chime in on a post on the Mustang AUtoX/HPDE Facebook group after the Corral posts and did recommend pairing the ATS setup with the 43mm calipers to correct the bias.

I still think there are tweaks to be made to get this system perfect. It just frustrates me because I need to do this from the sideline while I do a full resto on my car and have to think hypothetically rather than slap the parts on my car and test them out. I do not know if this is an official MM recommendation and I hesitate to speak for them and say "MM says it's fine", so don't take this post as that.

But, my opinion, is that to make the ATS brembos work, you need to pair them with the 43mm rear calipers and upgrade to the 1 1/8" MC.

I'm sure other's may disagree that the stock MC feels fine. That's why we discuss these things in the forum and get others to weigh in.

 

[mvk13]

Might not be ATS Brembos, but I'm running 09 GT500 Brembos on 14" rotors. It was a little on the nose diving side with stock 98 Cobra MC. Adding the 43mm Vargas made a world of difference in the way the car stops and turns. Just relating how mine feels, your mileage may vary....

Pics of the current brakes and the 18 GT calipers I'm thinking about, but will have to go-to 19s. Other pics are of the 43mm Vargas versus the stock calipers

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[GodStang]

very nice!

Might not be ATS Brembos, but I'm running 09 GT500 Brembos on 14" rotors. It was a little on the nose diving side with stock 98 Cobra MC. Adding the 43mm Vargas made a world of difference in the way the car stops and turns. Just relating how mine feels, your mileage may vary....

Pics of the current brakes and the 18 GT calipers I'm thinking about, but will have to go-to 19s. Other pics are of the 43mm Vargas versus the stock calipersView attachment 1656744View attachment 1656745View attachment 1656746

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[Mustang5L5]

I am not sure why you say this? My ATS stop far superior to my stock cobras. My Cobras always felt like they were not going to stop you in time. Like the calipers were too small for how heavy the Cobra is. That is completely gone with the ATS. Stops much firmer and faster.

Really I only say it because I cannot try it out yet. But your feedback is what I am looking to hear. Looks like I will try it with the Cobra MC first before going crazy with $400 master cylinders

edit: did you do the rear 43mm calipers as well?

 

[Blkkbgt]

I am not sure why you say this? My ATS stop far superior to my stock cobras. My Cobras always felt like they were not going to stop you in time. Like the calipers were too small for how heavy the Cobra is. That is completely gone with the ATS. Stops much firmer and faster.

Did you install the larger rear calipers or in any way address the bias issue?

 

[Blkkbgt]

@Mustang5L5 one thing I am noticing lately is that the 00R kit seems to be out if stock everywhere I look. Summit isn't even listing it anymore depending on how you search. When it does come up it says no longer available. Kind of sucks.

 

[mvk13]

@Mustang5L5 one thing I am noticing lately is that the 00R kit seems to be out if stock everywhere I look. Summit isn't even listing it anymore depending on how you search. When it does come up it says no longer available. Kind of sucks.

If you go to eBay in Europe/UK you can find the Focus RS Brembos. They are the same as the 00R, but in silver. There are several other makes that use that caliper. The Fiat Coupe (20V iirc) uses the same caliper with a slightly different brake line inlet. I've used them before and they are silver also. Make sure the spec is 130mm spacing for the mounting holes. For the Mustangs: Brembo part number 20.7363.20 Brembo kit number 15E.6001A1

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[Blkkbgt]

If you go to eBay in Europe/UK you can find the Focus RS Brembos. They are the same as the 00R, but in silver. There are several other makes that use that caliper. The Fiat Coupe (20V iirc) uses the same caliper with a slightly different brake line inlet. I've used them before and they are silver also. Make sure the spec is 130mm spacing for the mounting holes. For the Mustangs: Brembo part number 20.7363.20 Brembo kit number 15E.6001A1

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The new focus RS is not the same caliper if that is what you're referring to. The older style however is which I've been aware of for a while.

The last time I searched prices shipping was high, prices were high and some of the calipers looked beat. One even looked like it had been involved in an accident where the wheel broke off the hub and hit the caliper several times.

 

[mvk13]

Wow, Last time I did that was about 3years ago. I scored a set for 350 shipped and with the rebuild I had about 525 into them.

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[omj]

I have the ats/43mm rear with oem mc. It has slightly more pedal movement before significant braking but I don't notice it anymore. The setup has enough power to activate the abs system at 60 and 100 on 275/40/17 R888s. Great mod.

 

[omj]

Has anyone researched this mc?
Ford 1-1/8 Inch Hydroboost Master Cylinder (with Cruise Control)

 

[98 svt]

Has anyone researched this mc?
Ford 1-1/8 Inch Hydroboost Master Cylinder (with Cruise Control)

Now that I view that link, would a check valve help at all? (such as the one in your supplied link)
2lb Check Valve by Wilwood

 

[wckdvnm]

Has anyone researched this mc?
Ford 1-1/8 Inch Hydroboost Master Cylinder (with Cruise Control)

I thought upon checking that MC was clocked wrong or something; someone on another forum mentioned that MC as well.

 

[Mustang5L5]

Has anyone researched this mc?
Ford 1-1/8 Inch Hydroboost Master Cylinder (with Cruise Control)

If it's the MC pictured in the photo, then it's not clocked correctly.

Here's a typical ford hydroboost MC setup

 

[Mustang5L5]

This Is something I caught wind of a while ago but haven't explored.

11-14 Mustang GT non-track pack comes with a 13.25" x 1.18" rotor. Supposedly they will fit and allow the pad to solidly fit on the face of the rotor. You would need to run a .100" spacer behind the rotor hat (or machine the brembos) instead of the 0.075" spacer used now.