C5 Calipers

[Billy Mild]

How much work is required to adapt C5 front calipers to the C4 ZR1? Can stock ZR1 rotors be used with C5 calipers? What kind of brake lines are required?

[mike100]

The simple answer is a lot of work. Reason being that nothing fits as it should and unless you get a take off kit complete from another car, you will be nickeled and dimed to death trying to mail order all the stuff. Don't forget to convert to an 18" spare tire from a 2004-2006 pontiac gto. First off, do you have the A-Mold wheels? If not...this will cost a lot.

[mike100]

... Can stock ZR1 rotors be used with C5 calipers? ...

No.

The only thing the C4 and C5 share is the general hub dimension and lug pattern which allows the swap to be possible.

[Kevin]

I have a write up about this but last time I posted it someone got upset, lets just say the list of parts needed is very long

[GOLDCYLON]

How much work is required to adapt C5 front calipers to the C4 ZR1? Can stock ZR1 rotors be used with C5 calipers? What kind of brake lines are required?


Lot a work and bunch of parts.

C5 calipers assuming Z06 Used about $400 ish
C5 Z06 Adaptor Brackets $170
Stainless replacement lines with banjo connectors about $120
C5 Rotors assuming stock $150-200 ranged slotted/drilled more.
New C5 PADS $100ish

The right sized wheels. 17 Sawblades wont fit for instance

a little trimming and grinding as required (Wheel dependent).Im sure im missing a few parts but needless to say Big project, Go boldly :cheers:

This may be helpful

http://www.zr1.net/forum/showthread.php?t=21782&highlight=calipers

[FU]

What Goldcylon said . A-molds clear C5 ZO6 brakes.

[Dynomite]

Oh you guys :D

ZR-1 (90' and 91') Wilwood Rotors and C4 to C5-Z06 Conversion (http://forums.corvetteforum.com/c4-zr-1-discussion/3005470-tech-info-lt5-modifications-rebuild-tricks-500-hp-3.html#post1581564033)

[XfireZ51]

You need the C5 rotors. C4s are a bit larger in dia but not thickness.

[Billy Mild]

I was curious since there is a guy local to me selling a set of Base C5 brake calipers for a good price. If it requires that much work, I don't see there being much to gain really.

[G8nightman]

I was think about going with this kit
http://www.vbandp.com/index.php?option=com_virtuemart&page=shop.product_details&flypage=flypage-ask.tpl&product_id=364&Itemid=1

[XfireZ51]

I was think about going with this kit
http://www.vbandp.com/index.php?option=com_virtuemart&page=shop.product_details&flypage=flypage-ask.tpl&product_id=364&Itemid=1

For that kind of money you could do C6 and have better brakes.

[tf95ZR1]

For that kind of money
and effort
you could do C6 and have better brakes.

X2

And the C6 Z06 calipers look COOL!

[XfireZ51]

and effort


X2

And the C6 Z06 calipers look COOL!


You mean like these?


http://i187.photobucket.com/albums/x198/Z51Xfire/ROZA%20NERO/495A1943-8EED-4CBA-86CB-6FBA631D193B_zps5idjw7bm.jpg (http://s187.photobucket.com/user/Z51Xfire/media/ROZA%20NERO/495A1943-8EED-4CBA-86CB-6FBA631D193B_zps5idjw7bm.jpg.html)

[G8nightman]

You mean like these?


http://i187.photobucket.com/albums/x198/Z51Xfire/ROZA%20NERO/495A1943-8EED-4CBA-86CB-6FBA631D193B_zps5idjw7bm.jpg (http://s187.photobucket.com/user/Z51Xfire/media/ROZA%20NERO/495A1943-8EED-4CBA-86CB-6FBA631D193B_zps5idjw7bm.jpg.html)
Can you give me some more detail on your setup?

[tf95ZR1]

You mean like these?

Abso-tively!

http://i529.photobucket.com/albums/dd335/tf95ZR-1/d038575c-2c9c-4d5d-b49d-4697192b8c11_zpsf6250ce1.jpg

Sorry, we didn't mean to sidetrack your thread. My humble findings & opinions:
Grand Sport calipers are an easy swap as they are a straight replacement. Not much
performance improvement but more bling.
C5 calipers are a performance improvement, but will they fit inside your rims?
If they don't and you have to get new rims anyway, why not go all the way with
either C6 Z06 or Willwood/Brembo big boy calipers? 6 pad/piston and larger rotors.
Yep, need adapters, new brake lines, banjos. For me, the hardest piece was adapters
that fit and worked correctly.
It's "being bitten by the mod bug" logic

[XfireZ51]

Can you give me some more detail on your setup?

This configuration uses both front and rear C6Z06 calipers and rotors. The front calipers are pretty straight forward and the conversion is not any different than adapting C5 calipers. Same type adapter. The issue is wheel clearance. However, since I Really like the Z06 wheels, there is no problem there. Using the OEM Z06 rotor, the wheel offset is very close to stock. You'll use C6 brake lines front and rear. Have not found any need to address master cylinder.
There are a couple of alternatives for the rear:

1. Keep stock calipers. These work fine. I did that for over a year and did not have any problem w brakes. Visually, the stock rear calipers and rotor are puny when inside a 19" wheel.

2. Use rear Z06 calipers and rotor w adapter, but lose eBrake or use line-loc.

3. Use Z06 calipers and rotors w Street Shop adapter incorporating C6 eBrake. A bit more involved since it also requires building new eBrake cables to each side. If you search you'll find a thread I recently posted from this past winter on the project.

Again, I think Z06 wheels are great on my car, so I wanted to complete the overall look both mechanically and aesthetically. To me the larger wheels etc. give the car a more hunkered down look. As if it's been dropped although it has not.
The rotors and calipers will add unsprung weight to the car. The stopping power has you never being concerned about how quickly you can come down from speed. You don't need much pedal pressure to slow down.
Finally, forget about using spare. So I unloaded the tire carrier from the rear. Frankly, I didn't have much faith in spare maintaining air anyway. Bought a Continental tire kit in case of puncture.

[G8nightman]

This configuration uses both front and rear C6Z06 calipers and rotors. The front calipers are pretty straight forward and the conversion is not any different than adapting C5 calipers. Same type adapter. The issue is wheel clearance. However, since I Really like the Z06 wheels, there is no problem there. Using the OEM Z06 rotor, the wheel offset is very close to stock. You'll use C6 brake lines front and rear. Have not found any need to address master cylinder.
There are a couple of alternatives for the rear:

1. Keep stock calipers. These work fine. I did that for over a year and did not have any problem w brakes. Visually, the stock rear calipers and rotor are puny when inside a 19" wheel.

2. Use rear Z06 calipers and rotor w adapter, but lose eBrake or use line-loc.



3. Use Z06 calipers and rotors w Street Shop adapter incorporating C6 eBrake. A bit more involved since it also requires building new eBrake cables to each side. If you search you'll find a thread I recently posted from this past winter on the project.

Again, I think Z06 wheels are great on my car, so I wanted to complete the overall look both mechanically and aesthetically. To me the larger wheels etc. give the car a more hunkered down look. As if it's been dropped although it has not.
The rotors and calipers will add unsprung weight to the car. The stopping power has you never being concerned about how quickly you can come down from speed. You don't need much pedal pressure to slow down.
Finally, forget about using spare. So I unloaded the tire carrier from the rear. Frankly, I didn't have much faith in spare maintaining air anyway. Bought a Continental tire kit in case of puncture.
Do you think it will fit under 18 inch Shelby wheels?

[XfireZ51]

Do you think it will fit under 18 inch Shelby wheels?

Not without significant grinding of the front calipers. Think =Jeff= looked at that.
It's not just a question of circumference or drum but also caliper face clearance. The Z06 wheels have split spokes pushed to the outer edge of the wheel. Shelbys hub is inset. However, you can see that tf95 has them using FISKE(?) wheels.

[Kevin]

I'd love to do the c6 setup but it's just no where near my budget.

[GOLDCYLON]

and effort


X2

And the C6 Z06 calipers look COOL!

Ted I don't think the C6 ZO6 calipers will fit behind his 18 inch Shelbys. If he sticks with those wheels I don't think spacers, grinding etc will allow them to fit. GC

[GOLDCYLON]

and effort


X2

And the C6 Z06 calipers look COOL!

Do you think it will fit under 18 inch Shelby wheels?

Nope but the C5 setup we discussed and you posted you were thinking about will. Another option with out the adaptor brackets is the Wilwood setup I'm running which is the 6 piston narrow lites that im am running along with -=Jeff=-Those are direct bolt on and with fit behind A Molds. He's running 18 inch wheels and may offer some insight. The kit is 1800 although. Either way you go.... big brakes are big bucks. 140-8337 is the wilwood part number

[GOLDCYLON]

Not without significant grinding of the front calipers. Think =Jeff= looked at that.
It's not just a question of circumference or drum but also caliper face clearance. The Z06 wheels have split spokes pushed to the outer edge of the wheel. Shelbys hub is inset. However, you can see that tf95 has them using FISKE(?) wheels.

I think Ted is running 18inch FIKSEs as well more room than the Shelbys

[Billy Mild]

Nope but the C5 setup we discussed and you posted you were thinking about will. Another option with out the adaptor brackets is the Wilwood setup I'm running which is the 6 piston narrow lites that im am running along with -=Jeff=-Those are direct bolt on and with fit behind A Molds. He's running 18 inch wheels and may offer some insight. The kit is 1800 although. Either way you go.... big brakes are big bucks. 140-8337 is the wilwood part number

I'm shocked no one has tried to adapt Regal GS brakes to the ZR1. They are 4 piston brembo's. Those would be more than enough for our cars.

Looks like this isn't worth it for the money.

[Kevin]

I'm shocked no one has tried to adapt Regal GS brakes to the ZR1. They are 4 piston brembo's. Those would be more than enough for our cars.

Looks like this isn't worth it for the money.

that really depends on how you drive your car. if you're tracking the crap out of it then maybe it's worth it. if you want to say you have CCB's on your car at a show, then yes. if you just drive to car shows and some third gear blasts, maybe not

[tf95ZR1]

I think Ted is running 18inch FIKSEs as well more room than the Shelbys

Yes GC, I have 18" Fikse's. I believe LOCOBOB who has Shelby's (look great) verified C6 Z06 calipers WON'T fit.
And WVZR-1 helped me with a spare tire set-up that required ANOTHER adapter and 18" CTS spare.

[XfireZ51]

I'm shocked no one has tried to adapt Regal GS brakes to the ZR1. They are 4 piston brembo's. Those would be more than enough for our cars.

Looks like this isn't worth it for the money.

Actually the Camaro or CTS Brembos would be nice but adapting these is a bit convoluted. IMO, the Z06 brakes can be had for a reasonable cost if you shop properly and have patience. However, you need to factor in the cost of wheels.
Locobob was the guy that got me started on Z06 wheels. DAMN YOU BOB! :usa:

[-=Jeff=-]

The wilwood Narrow super lites fit better behind the Shelby than the C5.. With the C5 caliper you will need a spacer.. I am running the Wilwood with no spacer, they fit great

C6 Z06 will not fit under the Shelby without major mods to the caliper and wheels

I have a pair of 4 piston brembo as well as another pair of 4 piston Wilwoods (both rear set-ups) for anyone interested