Brake conversion C4->C5->C6 Z06?
Thread Starter
Instructor
Joined: Oct 2007
Posts: 132
Likes: 2
From: Stockholm/Sweden
Brake conversion C4->C5->C6 Z06?
Hi,
If I understand correct you can buy adapter brackets to fit C5 calipers to a 88-96 C4? Further more I also understood that you could fit C6 and more specific the Z06 calipers on a C5 straight on? Giving that I understood this correct I guess that you should be able to use those adapter brackets to fit C6 Z06 calipers on a C4 if you don’t take into account the wheels and fender issues?
If so, where could I find those adapter brackets and are they available for the rear calipers as well?
Cheers,
If I understand correct you can buy adapter brackets to fit C5 calipers to a 88-96 C4? Further more I also understood that you could fit C6 and more specific the Z06 calipers on a C5 straight on? Giving that I understood this correct I guess that you should be able to use those adapter brackets to fit C6 Z06 calipers on a C4 if you don’t take into account the wheels and fender issues?
If so, where could I find those adapter brackets and are they available for the rear calipers as well?
Cheers,
Last edited by EVOVII_SWE; Oct 15, 2007 at 11:32 AM.
Thread Starter
Instructor
Joined: Oct 2007
Posts: 132
Likes: 2
From: Stockholm/Sweden
Ok, but I was under the impression that C6 calipers bolted straight on to the C5? So if I get C4->C5 adapters the C6 should fit as well? 
Last edited by EVOVII_SWE; Oct 15, 2007 at 11:32 AM.
Le Mans Master
Joined: Aug 2004
Posts: 5,141
Likes: 7
From: Metairie Louisiana
Last edited by rickneworleansla; Oct 15, 2007 at 11:44 AM.
Melting Slicks
Joined: Oct 2006
Posts: 2,238
Likes: 10
From: College Station TX
Ok, quick lesson in C5/C6 brakes.
First off, C5 and non C6 Z06 calipers are interchangeable. They aren't EXACTLY the same, as the C6 has a smaller window on top of the caliper, and they don't use the top anti-rattle clip. However, a lot of people run C5 calipers without the top clip so it's not a big deal.
With the C4-C5 adapters, you can put C5 or non C6 Z06 calipers on your C4. You have to have 17" wheels. You don't want C6 Z06 brakes. I don't think they fit, and they don't work all that great anyway. The 6 little padlets are expensive and can wear very quickly.
If you want to use C6 Z51 14" rotors, you can use C4-C5 adapters with a C5 or base C6 caliper. All you need is the C6 Z51 pad bracket and the C6 Z51 larger rotor. Uses the same pads as a base car. You will most likely need 18" wheels for this (some get them under 17's, but no promises).
C4 rear brakes are fine, and don't need to be changed. Unless you have massive front brakes and do a lot of hardcore road racing, the stock C4 rear brakes are TOTALLY FINE!
Any questions?
First off, C5 and non C6 Z06 calipers are interchangeable. They aren't EXACTLY the same, as the C6 has a smaller window on top of the caliper, and they don't use the top anti-rattle clip. However, a lot of people run C5 calipers without the top clip so it's not a big deal.
With the C4-C5 adapters, you can put C5 or non C6 Z06 calipers on your C4. You have to have 17" wheels. You don't want C6 Z06 brakes. I don't think they fit, and they don't work all that great anyway. The 6 little padlets are expensive and can wear very quickly.
If you want to use C6 Z51 14" rotors, you can use C4-C5 adapters with a C5 or base C6 caliper. All you need is the C6 Z51 pad bracket and the C6 Z51 larger rotor. Uses the same pads as a base car. You will most likely need 18" wheels for this (some get them under 17's, but no promises).
C4 rear brakes are fine, and don't need to be changed. Unless you have massive front brakes and do a lot of hardcore road racing, the stock C4 rear brakes are TOTALLY FINE!
Any questions?
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Thread Starter
Instructor
Joined: Oct 2007
Posts: 132
Likes: 2
From: Stockholm/Sweden
Ok, quick lesson in C5/C6 brakes.
First off, C5 and non C6 Z06 calipers are interchangeable. They aren't EXACTLY the same, as the C6 has a smaller window on top of the caliper, and they don't use the top anti-rattle clip. However, a lot of people run C5 calipers without the top clip so it's not a big deal.
With the C4-C5 adapters, you can put C5 or non C6 Z06 calipers on your C4. You have to have 17" wheels. You don't want C6 Z06 brakes. I don't think they fit, and they don't work all that great anyway. The 6 little padlets are expensive and can wear very quickly.
If you want to use C6 Z51 14" rotors, you can use C4-C5 adapters with a C5 or base C6 caliper. All you need is the C6 Z51 pad bracket and the C6 Z51 larger rotor. Uses the same pads as a base car. You will most likely need 18" wheels for this (some get them under 17's, but no promises).
C4 rear brakes are fine, and don't need to be changed. Unless you have massive front brakes and do a lot of hardcore road racing, the stock C4 rear brakes are TOTALLY FINE!
Any questions?
First off, C5 and non C6 Z06 calipers are interchangeable. They aren't EXACTLY the same, as the C6 has a smaller window on top of the caliper, and they don't use the top anti-rattle clip. However, a lot of people run C5 calipers without the top clip so it's not a big deal.
With the C4-C5 adapters, you can put C5 or non C6 Z06 calipers on your C4. You have to have 17" wheels. You don't want C6 Z06 brakes. I don't think they fit, and they don't work all that great anyway. The 6 little padlets are expensive and can wear very quickly.
If you want to use C6 Z51 14" rotors, you can use C4-C5 adapters with a C5 or base C6 caliper. All you need is the C6 Z51 pad bracket and the C6 Z51 larger rotor. Uses the same pads as a base car. You will most likely need 18" wheels for this (some get them under 17's, but no promises).
C4 rear brakes are fine, and don't need to be changed. Unless you have massive front brakes and do a lot of hardcore road racing, the stock C4 rear brakes are TOTALLY FINE!
Any questions?
Le Mans Master
Joined: Aug 2004
Posts: 5,141
Likes: 7
From: Metairie Louisiana
I have one. Does anyone know the weight difference between the 13" J55 C4 rotors, 13" C5 and C6 rotors, and the 13.4" C6 Z51 rotors? I'd like better braking but I'd also like to know how much rotating weight I'd be adding.
Thanks
Thanks
Last edited by rickneworleansla; Oct 16, 2007 at 10:17 AM.
Melting Slicks
Joined: Oct 2006
Posts: 2,238
Likes: 10
From: College Station TX
A better question would be why do you want Z06 calipers?
That I don't know. I have never handled a Z51 rotor. Perhaps someone can get their hands on one and put it on scale.
Thread Starter
Instructor
Joined: Oct 2007
Posts: 132
Likes: 2
From: Stockholm/Sweden
While I don't have an exact answer for you, I seem to remember reading the Z06 caliper will hit the adapter bracket. The C4-C5 bracket was not designed with Z06 calipers in mind, and they are shaped significantly differently that the base calipers.
A better question would be why do you want Z06 calipers?
A better question would be why do you want Z06 calipers?
The reson for the Z06 brakes is that I will be using the Z06 engine so I though the brakes would be nice as well
On the other hand my car will be around 2200lbs so they will probably be over kill but so will the engine
Safety Car
Joined: Feb 1999
Posts: 3,504
Likes: 4
From: Mexico Beach FL
I don't know about the Z51 rotors, but I can tell you that the C5 13" rotors are lighter than the J55 13" rotors.
I actually weighed the calipers and rotors.
I don't remember the exact weights; but, I believe this is what I found:
1) C5 rotors are lighter than J55 rotors.
2) C5 calipers are heavier than J55 calipers.
3) The combination of J55 rotors, J55 brackets, with J55 calipers is very close to the weight of the C5 rotors, C5 brackets, with C5 calipers. So, adding the C4 to C5 adapters caused a weight gain when converting to C5 brakes.
I wouldn't be suprised if I put the actual weights in a post I did several years ago.
Tom Piper
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
But most don't give a **** about performance, they really just want it to "look" like it performs well.Anyhow, the logic in the first post does mean the bolts would line up using the C5 adapter, except the caliper body is different and may interfere with the bracket. JeffVette knows the answer to this. PM him.
Melting Slicks
Joined: Oct 2006
Posts: 2,238
Likes: 10
From: College Station TX
Ok, that sounds like it could be a possible problem then.
The reson for the Z06 brakes is that I will be using the Z06 engine so I though the brakes would be nice as well
On the other hand my car will be around 2200lbs so they will probably be over kill but so will the engine
The reson for the Z06 brakes is that I will be using the Z06 engine so I though the brakes would be nice as well
On the other hand my car will be around 2200lbs so they will probably be over kill but so will the engine
How do you plan to get your car down to 2200lbs? I have never seen a C4 based car below 2500 or so.
Thread Starter
Instructor
Joined: Oct 2007
Posts: 132
Likes: 2
From: Stockholm/Sweden
But most don't give a **** about performance, they really just want it to "look" like it performs well.Anyhow, the logic in the first post does mean the bolts would line up using the C5 adapter, except the caliper body is different and may interfere with the bracket. JeffVette knows the answer to this. PM him.
I'll drop him a PM
Thread Starter
Instructor
Joined: Oct 2007
Posts: 132
Likes: 2
From: Stockholm/Sweden
Thread Starter
Instructor
Joined: Oct 2007
Posts: 132
Likes: 2
From: Stockholm/Sweden
Race Director
Joined: May 2000
Posts: 17,101
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From: No more yankee my wankee, the Donger is tired!
Hi,
If I understand correct you can buy adapter brackets to fit C5 calipers to a 88-96 C4? Further more I also understood that you could fit C6 and more specific the Z06 calipers on a C5 straight on? Giving that I understood this correct I guess that you should be able to use those adapter brackets to fit C6 Z06 calipers on a C4 if you don’t take into account the wheels and fender issues?
If so, where could I find those adapter brackets and are they available for the rear calipers as well?
Cheers,
If I understand correct you can buy adapter brackets to fit C5 calipers to a 88-96 C4? Further more I also understood that you could fit C6 and more specific the Z06 calipers on a C5 straight on? Giving that I understood this correct I guess that you should be able to use those adapter brackets to fit C6 Z06 calipers on a C4 if you don’t take into account the wheels and fender issues?
If so, where could I find those adapter brackets and are they available for the rear calipers as well?
Cheers,
Originally Posted by Mojave
If you want to use C6 Z51 14" rotors, you can use C4-C5 adapters with a C5 or base C6 caliper.