Brake master cylinder

[max76]

Hi guys,
for me it's time to replace the brake master cylinder.
I have a question for you....what's the best brand to choose?
I see Cardone, Raybestos, Centric and others....some of these are out of stock...What did you suggest me???
Thanks in advance
​​​​​​​Max

[Young1]

Dorman, Cardone, Raybestos, Wagner are long time names in rebuilding that I would trust my brakes to. The others ?????

[TX '90 ZR1]

Davies Corvette had a few OEM master cylinders a few months back. The originals were built in Australia.
:cheers:

[max76]

Thank you guys...

[bowtiguy]

Davies Corvette had a few OEM master cylinders a few months back. The originals were built in Australia.
:cheers:

Thanks for that hook up. Mine was shipped yesterday.. original PBR master going onto the "just in case" shelf.

[TX '90 ZR1]

Thanks for that hook up. Mine was shipped yesterday.. original PBR master going onto the "just in case" shelf.

I put one on my '90 a few months back. The only difference I could see between the new one and the original one was a some difference in the font of the PBR lettering cast into the cylinder.
I've been trying to find a rebuild kit for my original for quite some time. No luck as of yet, so my original is just sitting on the shelf. If anyone knows of one available, please let me know.
:cheers:

[max76]

I put one on my '90 a few months back. The only difference I could see between the new one and the original one was a some difference in the font of the PBR lettering cast into the cylinder.
I've been trying to find a rebuild kit for my original for quite some time. No luck as of yet, so my original is just sitting on the shelf. If anyone knows of one available, please let me know.
:cheers:

I'll like to find the rebuilt kit too...

[SAB]

Does anyone know if there is someone who will rebuild an original brake master cylinder?

[bowtiguy]

Does anyone know if there is someone who will rebuild an original brake master cylinder?

Have you tried turn-1 or lone star caliper?

[SAB]

Have you tried turn-1 or lone star caliper?

No, I have not. I was told that Lone Star does not but I will call to confirm.

[SAB]

I spoke with lone star about rebuilding these brake master cylinders. Unfortunately, they do not know of any kits available to rebuild them. Oh well, my original will stay on the shelf just in case it happens in the future.

[max76]

I spoke with lone star about rebuilding these brake master cylinders. Unfortunately, they do not know of any kits available to rebuild them. Oh well, my original will stay on the shelf just in case it happens in the future.


Me too would need a new master cylinder but I'm dubious about the ones I see for sale because they are all overhauled (or at least I think) ... I've read that many have leak problems after a short time that they are installed.

[max76]

Nobody know if it's possible install a different master cylinder?
I mean that for another car that has the same fixing point, also if the design is different...

[max76]

anyone make this modify?

https://www.corvetteforum.com/forums/c4-tech-performance/3078365-c4-master-cylinder-upgrade.html

[secondchance]

My understanding is that later C4s came with slightly larger bore to increase the displacement. Pretty sure this happened before 1990 so all ZR1s has the same bore. Another change may have been when ASR was introduced.
I considered C5 master cylinder with a larger bore when I changed my brake caliper and rotors to Wilwood 6 pistons front and 4 pistons on the rear. However, input and output ports on the master was opposite side and dropped the idea. My 94 despite larger calipers works fine with OEM.
If your concern is low quality rebuild, I suggest checking out Davis Corvette. I boght a new brake master from them 3-4 years ago and looked to be OEM.

https://corvetteparts.com/catalog/Davies-Corvette/1?yr=C4&q=Brake+master+cylinder

[Ozruss90]

Coincidentally, a guy approached me at a local car show here in Victoria a couple of weeks ago and told me he used to work at PBR in Melbourne when they were developing the brake systems for the corvette/ZR-1. He is a local guy in my town. I will contact him and try and get some more info, re crossover to another local Australian car or a kit availability

Cheers,
Russell 🇦🇺

[SAB]

I called Davies Corvette and they do not have rebuild kits for ZR1s. Hopefully Russell will have success with his guy in town. I would think that whoever comes up with a rebuild kit will be busy for a while.

[secondchance]

I called Davies Corvette and they do not have rebuild kits for ZR1s. Hopefully Russell will have success with his guy in town. I would think that whoever comes up with a rebuild kit will be busy for a while.

Davis only sells master assembly. For rebuild kit, try https://www.ecklerscorvette.com/1989-1991-corvette-acdelco-brake-master-cylinder-repair-kit-25-105903-1.html.

Google is your best friend.

[SAB]

Davis only sells master assembly. For rebuild kit, try https://www.ecklerscorvette.com/1989-1991-corvette-acdelco-brake-master-cylinder-repair-kit-25-105903-1.html.

Google is your best friend.

Thank you for the link.

[max76]

Davis only sells master assembly. For rebuild kit, try https://www.ecklerscorvette.com/1989-1991-corvette-acdelco-brake-master-cylinder-repair-kit-25-105903-1.html.

Google is your best friend.

This rebuilding kit is more expensive than a new (rebuilt) Master cylinder...Davies Corvette sell the correct master cylinder and seems like a new product...it's possible?

[max76]

Coincidentally, a guy approached me at a local car show here in Victoria a couple of weeks ago and told me he used to work at PBR in Melbourne when they were developing the brake systems for the corvette/ZR-1. He is a local guy in my town. I will contact him and try and get some more info, re crossover to another local Australian car or a kit availability

Cheers,
Russell 🇦🇺

This is a very good notice...hope you can help us...