Re: Big Brakes Needed
 

Brett,
I'm currently running 10"x18", 58mm offset Fikse Profil 10s on the front.
Before I was running the same 13" C6 brake setup with factory 17" A-molds which were at the limit clearence wise for those particular wheels.

Re: Big Brakes Needed
 

Brett,

The C5 rotors are slightly smaller @ 12.8" rather than the J55 rotors @ 13". They are thicker however.

Re: Big Brakes Needed
 

So what are the differences between the C5 and C6 base calipers?

Re: Big Brakes Needed
 

None. Identical. Z51 is different.

Re: Big Brakes Needed
 

C6 Z51 brake uses a 13.5" rotor. However, won't work on 17" wheels.

Re: Big Brakes Needed
 

Phil, Dom, thanks for the rotor sizes. I know it's a lot of questions. I feel like I should already know the answers but I keep telling myslef, "You have never had a ZR1 to drive daily".

I just want to make sure that I mod the car with something that I'll be happy with. I don't want to do it twice. I don't mind dropping $$$$, but I want to spend $$$ it wisley.

Re: Big Brakes Needed
 

Brett,

The C5 brakes are very good. They are not incrementally better than the J55s in comparison to having replaced 12" rotors w the C5s. However, if you are interested in using 17" wheels, the C5s are a value for the money.
Lots of rotors and pads to choose from also. Or get the C6 version which has a more stylized script on the caliper.

Re: Big Brakes Needed
 

At least I know what to shop or at Carlisle next month.

Thanks to all!!!!:handshak:

Re: Big Brakes Needed
 

Mounting interface is the same for both C5 Z06 and C6 base calipers.
C6 caliper hats are of beefier construction, have larger raised "CORVETTE" lettering, and have a cleaner overall look in my opinion.

Re: Big Brakes Needed
 

If you find a worthwhile set of C6Z calipers, let me know.

Re: Big Brakes Needed
 

Ok. Shouldn't be a problem.

Re: Big Brakes Needed
 

They do look sweet Phil, just so everyone knows they are C6 brakes that came off a Z51 option car. I was told at the time that they were a small improvement over the C5 ZO6 & stock C6. when I had to order the Baer 2 peice rotors, I had to specify Z51 brakes. Hope this little bit of info is helpful. Phil will need all the stopping power he can get after he puts in his WAZOO monster motor :-D

Re: Big Brakes Needed
 

C5 and C6 base rotors are 13x1.25". For comparison, your J55 rotors are 13x1.1". The C5+ rotors are noticeably thicker, they will take more braking to heat up than the J55's. If you stand them up next to each other, the C5 rotor is slightly shorter, but both are close enough to be called 13" rotors. The thickness of the rotor, plus a slightly larger caliper, is where the performance increase comes from.

There is no performance difference between C5 and base C6 brakes. However there is a cosmetic difference. The C6 caliper is painted grey and has larger "CORVETTE" lettering. The C5 base caliper is just rough aluminum, and the C5 Z06 caliper is painted red. The C6 Z51 uses the same caliper, but a different caliper bracket. It has a 13.5x1.25" rotor. However, the rotors are expensive, and might not fit in your wheel.

C5 and C6 rotors are also interchangeable but different. C5 rotors have directional vanes, C6 rotors have radial vanes.

Re: Big Brakes Needed
 

Brett,
Sorry to hijack your thread, but I now want big brakes and see there is a lot of discussion here already. With the DRM coilovers on the way, now is the time to upgrade brakes if I'm going to do this right.

The problem I have is like Brett, I am not willing to get rid of Dymag IIs to have bigger brakes even though it limits me. It seems the C5/6 might be the best way to go even though I was thinking of SSBC Tri-Power; not sure if rears will fit.

The other problem is I am still moving around the world and my stock 90 wheels (pc'd black center) are my shipping wheels so even more limited than the Dymags from what I have read on other posts.

So if I am not willing to get rid of my 90 OEMs to use for transporting the car, I can't do any upgrades? I read that the C5/6 can't fit in the 90 wheels. I'm trying to confirm with SSBC about the Tri-power (all it says is it fits 17" wheels), but not all 17" wheels are the same according to the information I have found so far.

Thanks for your thoughts.

Craig

Re: Big Brakes Needed
 

Craig,

The Brembos I had originally would fit under A molds.

Re: Big Brakes Needed
 

Thanks Dom. I guess A molds have more clearance even though 17" wheels and my Dymag Gen IIs have more clearance than the stock 90 MY wheels? I'm not sure how to confirm this other than with folks that have upgraded with 90 MY wheels. Worst case is I give up on the 90 wheels (sell them) and ship the car with the CCWs or just stop moving round the world and settle down already.............if I want bigger brakes.:confused:

Re: Big Brakes Needed
 

I like my C5 Z06 front calipers with the Dymag genII's

Re: Big Brakes Needed
 

Craig,

Wilwoods would be an option possibly.

Re: Big Brakes Needed
 

Thanks Brett and Dom. I'll check it out. :handshak:

Re: Big Brakes Needed
 

Converted to C5's up front

Re: Big Brakes Needed
 

Thanks, I just have to figure out a way to fit them into 90 MY wheels or get rid of the wheels.

Re: Big Brakes Needed
 

Just go to the 96 CE/GS calipers, they are a direct fit and have the correct corvette C4 Script. No adapter brackets required.

http://i1120.photobucket.com/albums/.../newwheel1.jpg


Looks and performs better than the earlier J55s

http://i1120.photobucket.com/albums/...n/caliper2.jpg

I have a painted set ready to go in my parts bin lol

http://i1120.photobucket.com/albums/...calipers-1.jpg

Re: Big Brakes Needed
 

GC,

Thanks for your thoughts and what I bought some years ago when I first got my Z and it was stock was what I was told are GS calipers.

http://i78.photobucket.com/albums/j86/hawaiizr1/zr1.jpg
My understanding is they are a slight improvement over the J55s as you mentioned, but looking for more improvement and it seems I might have to just get rid of the 90MY wheels to get what I am looking for. I am still waiting for SSBC to get back to me about some of their products are might fit in the 90 wheel, but still might not be much of an upgrade over the older J55s. I still have limitations with the Dymag Gen IIs, but they can at least fit the C5 brakes (again, not a big improvement?). Thanks for your thoughts.:cheers:

Re: Big Brakes Needed
 

I'm currently doing a c6 zr1 set up. It is kind of over kill for the car,but i love the look and the performance of it. The rotors are coming soon, now if i could just get the motor going.
http://i142.photobucket.com/albums/r...psfe5ea66e.jpg

Re: Big Brakes Needed
 

I wouldnt describe it as "over kill" I'm of the camp of "just right" Looks bad azz to me! Are you doing the rears also? :proud:

Re: Big Brakes Needed
 

Ricky, I agree that you can't have too much brakes...............BAD AZZ is right and I'm jealous.

Re: Big Brakes Needed
 

LOVE those wheels!!!!!! Not overkill @ all!

:cheers:

David

Re: Big Brakes Needed
 

Ricky,Craig and David, thank you for the comments. Yes i am doing the rear also. These calipers are really massive it makes the c6 z06 calipers looks small.

Re: Big Brakes Needed
 

So is there anyone with experience upgrading the brakes in their 90MY OEM wheels? What fits? Thanks!:cheers:

Re: Big Brakes Needed
 

Well we all know David J's next mod now LOL

Daniel

Re: Big Brakes Needed
 

So are the ZR1 brakes big enough to accommodate the rotor? They appear to be 6 piston like the Z06?

Re: Big Brakes Needed
 

The c6 zr1 comes with brembo 6 pistons calipers. The difference is the size... It is a bigger designs. The rotors are 15"1/2 size.

Re: Big Brakes Needed
 

Right. So they are 6 piston but larger to accommodate the rotors which are
1 1/2" wider in diameter. Aren't the Z wheels 19/20"?

Re: Big Brakes Needed
 

Hey Guys I'm not trying to change the topic or hijack , But For me since I wont be on the track and for me and what I do the stock system is fine unless I can inprove the brakes with little cost ( I'd rather at this point put $$ into exhaust etc ) But for inexpensive improvements etc would stainless lines and different rotors etc help? heres a ebay link to show what I was looking at ? http://www.ebay.com/itm/290702851807...84.m1438.l2649
I hope the link will post.. Thanks

Re: Big Brakes Needed
 

Corbusa. Those will not work on the Z,. We have J55 (13") fronts on our cars OEM

Re: Big Brakes Needed
 

I think you have a point about brake upgrades and depending on how you drive the car and the purpose. I also think think that stainless braided lines have a little help and purpose as do upgraded rotors/pads. I would warn you to you make sure you check on brand and quality as you get what you pay for in most cases. Besides as Jeff said not fitting our application, the quality of the ones you mention are probably made in China and might not be of the standards you desire for something as important as brakes. If you have done high speed runs and or even in spirited driving with close calls that better braking would have helped, then you probably want to upgrade. Otherwise it seems our brakes are not that bad for the average user. In other words, in my opinion not every needs to or should upgrade their brakes.

Craig

Re: Big Brakes Needed
 

Give me brakes as good as I can get because I never know when I will need them. All it takes is some bozo who doesn't know what they're doing.

Re: Big Brakes Needed
 

Thanks Guys , Good info aboutteh ebay stuff not fittings and china made ( probably) . Xfire you are probably correct , But i will have to do this a little later .. Wasnt there a link to a place that made an adapet setup for dual calipers ? I remember a thread about it sometime back.. I did a search here and on the net and couldnt find it.

Re: Big Brakes Needed
 

I would do the C6 Z51 brakes before the dual calipers. Besides, not sure that setup is even available anymore.










i

Re: Big Brakes Needed
 

SO we have 13 in front and 12in rear?