Camaro 4 Piston Brembo kit

[Ccmano]

Originally Posted by msv

For the C5 and C6, the hole spacing is 128mm, and the offset from disc centerline is 86mm.


The attached diagram shows what I mean by the offset dimension.

Thanks! Is that true for the C6 Z06 as well?
H

[msv]

Yes, the same uprights are used across the board on the C6, regardless of which model it is.

[Ccmano]

So if I follow the logic of the spacing, since C5 and C6 uprights are the same, a C5 Adapter bracket should work for any C5 or C6 Caliper/rotor combination on an 88+ C4 as long as the C5/C6 Caliper/Rotor are correct to each other. Hope I said that right.

In other words as long as the you use (for example) C6 Z06 caliper/rotor or a C5 Z06 Caliper/rotor and not mix calipers and rotors you should be good with a C5 Adapter bracket.

Taking that logic one step further you could also use a Camaro caliper/rotor with a C5 Adapter bracket (since the hole spacing is the same as a C5/C6 at 128mm) as long as you enlarged rotor center bore?

Is that logic correct? Or is offset another variable that can cause mounting issue? All of this assumes wheel clearance is not an issue.
H

[msv]

Originally Posted by Ccmano

So if I follow the logic of the spacing, since C5 and C6 uprights are the same, a C5 Adapter bracket should work for any C5 or C6 Caliper/rotor combination on an 88+ C4 as long as the C5/C6 Caliper/Rotor are correct to each other. Hope I said that right.

In other words as long as the you use (for example) C6 Z06 caliper/rotor or a C5 Z06 Caliper/rotor and not mix calipers and rotors you should be good with a C5 Adapter bracket.

Yes, but the caliper adapter bracket also has to locate the mounting plane of the new caliper mounting locations at the same distance from the hub face that it is on the C5/C6.

Originally Posted by Ccmano

Taking that logic one step further you could also use a Camaro caliper/rotor with a C5 Adapter bracket (since the hole spacing is the same as a C5/C6 at 128mm) as long as you enlarged rotor center bore?

Is that logic correct? Or is offset another variable that can cause mounting issue? All of this assumes wheel clearance is not an issue.
H

Nope! The hole spacing is the same, but that is the only similarity. The offset from the disc centerline is different so the hole positions are going to be different. Also the distance from the hub face to the caliper mount is different. To use Camaro parts on the C4 would require a bracket made specifically to adapt those components.


You touched on the wheel clearance issue already, which is always the key with brake upgrades, both diameter and then caliper to spoke. The C5/C6 setups use a shallow disc so that makes the caliper to spoke of primary concern.

[XfireZ51]

C5 adapters will not work for C6Z06 calipers.

[msv]

Originally Posted by XfireZ51

C5 adapters will not work for C6Z06 calipers.

Can you clarify this?


There are definitely considerations for how the adapter is designed that could create clearance issues, but the brake mounting dimensions for the C5 and C6 are identical.


There are some changes made to the uprights between the cars, and of course the calipers themselves have different shapes so that needs to be considered, but if designed with the needed considerations, a single adapter design would accommodate all of the C5 and C6 brake combinations. (as Ccmano stipulating with the correct disc/caliper pairing)

[msv]

Maybe I should start a thread to get input on what the community is looking for in regards to brake upgrades? I might be able to help if I know what everyone's priorities are, i.e. cost, wheel sizes, piece-together yourself, or complete package, etc.

For example, here are a couple rear solutions I designed for the rear using C6 parking brake components. One version takes C6 OE brakes, and another version using a Brembo radial mount caliper.

[Ccmano]

Exotic Muscle actually markets an Adapter they claim works for C5/C6 and C6 Z06 on EBay.
H

[Ccmano]

I can only speak for myself. I always look for the most cost effective, modern and efficient solutions. It’s easy to spend $1500 plus on an upgrade for the front using C6Z06, Baer, Wilwood or Movit calipers. Yes the standard C5Z06 upgrade is cheaper but I it’s not a significant improvement over the J55.

With all the late model Camaro (and derivative including C7Z51) Brembo calipers/rotors out there for well under $1000 (or as seen above for under $500) there needs to be an adapter developed for the C4.

I’m willing to be a Guinea pig if anyone is interested.
H

[XfireZ51]

The C6Z06 is larger ie 6 piston caliper and the rotor is 14” not 13” like the C5(actually 12.8”) The C6 caliper is similar to the C5, but the C6Z06 caliper is different from the base C6 caliper, unlike the C5 generation. My comment pertained to the Z06 not the base.