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The new, big AP brakes for the Z06 have 390mm front and 378mm rear rotors. Add the price of pads, and that set is around $13K, but they are like fine jewelry.
2:17.3 at Cota in my C8 Z07 yes not the fastest but clearly very fast compared to most. I run advanced or intermediate at most HPDEs. Not sure why you want to take the opposite of everything I say. I am not a national champ in my SCCA class but not slow my friend!
2:17.3 at COTA is indeed the fastest I have heard of in a C8Z, nice! Do you have video of the lap?
With all the great conversation above, have any fast guys confirmed the stock iron brakes are insufficient? I'm a time trial guy and really only drive 10/10s for one or two laps then slow it down, even in an HPDE. I just can't see CCBs giving me a noticeable lap time improvement for my style... or maybe my style is perfect for CCBs since I don't push it for very long???
The new, big AP brakes for the Z06 have 390mm front and 378mm rear rotors. Add the price of pads, and that set is around $13K, but they are like fine jewelry.
With all the great conversation above, have any fast guys confirmed the stock iron brakes are insufficient? I'm a time trial guy and really only drive 10/10s for one or two laps then slow it down, even in an HPDE. I just can't see CCBs giving me a noticeable lap time improvement for my style... or maybe my style is perfect for CCBs since I don't push it for very long???
I suspect a stickier tire may show the limit of the stock pad compound. Once more grip is available they may not have enough to take full advantage, but for stock PS4S no issues so far, but VIR use only which has straights to cool the brakes.
With all the great conversation above, have any fast guys confirmed the stock iron brakes are insufficient? I'm a time trial guy and really only drive 10/10s for one or two laps then slow it down, even in an HPDE. I just can't see CCBs giving me a noticeable lap time improvement for my style... or maybe my style is perfect for CCBs since I don't push it for very long???
I was surprised how good the stock iron brakes were on track, especially with upgraded aftermarket pads. But even with stock pads they are solid. Stock front pads wear fast but otherwise very impressive. I also drove a friends Z07 on track back to back with my Z06, and in my opinion the CCBs did offer more bite and better overall braking... but, it's not apples to apples since the Z07 also has CUP2R vs my 200TW Nankang and more downforce.
oe list below
1 68283275-ab pad disc 05003003 1 1 1615.00 1615.00 s 2
2 68252788-aa rotor bra 05005003 2 2 5350.00 10700.00 s 2
3 68283290-ab pad disc 05003003 1 1 1200.00 1200.00 s 2
4 68252786-aa rotor bra 05005003 2 2 5350.00 10700.00 s 2
Nobody pays those prices, although the time may be coming. The car has been out of production for 7 years, and most of the OE replacement parts are now listed as "discontinued". I just looked at my invoice and i year ago I paid $11,379 for four OE rotors and a full set of pads. When I bought the ACR I also invested in 2 spare windshields and a pair of headlight assemblies as a hedge against future supply issues. Glad I have spare rotors and sets of pads on the shelf.
Spare Viper CCBs
As an item of interest, note the 3-leaf symbols on a couple of the pad boxes. With only one of the 3 leaves colored in, that indicates no restriction to copper content. New pads with all leaves colored in indicates 0% copper content as directed by the EPA just a few years ago.
I travel all over the US to track. Mostly Road Atlanta, COTA, NCM Motorsports Park, Mid Ohio, Pittrace, a number of times to Laguna Seca (although West Coast as I tend to stay central to eastern US) but they recently went through a track paving project just like COTA is currently doing and a number of other less known tracks.
Originally Posted by mfain
A lot of the CCB opinions appear to be from folks not running them. I run them on two cars that I track and am convinced there is a performance advantage due to lower rotating mass and superior grip. Here are my C8Z pads and rotors after 4 full track days. Pads less than 1/2 used up and rotors look great. As an unrelated side note, notice the brown brake dust in the vent holes. I get the same dust on the wheels. This is not characteristic of the earlier pads on my ACR or C6 Z07.
I have almost 10K miles on my ACR and over 40 track days on the same rotors. I change the pads at about half pad and I am on the 5th or 6th set of front pads. The only issue I have had was early on when I cracked a rear rotor when the knuckle's emergency brake mounting pad was not machined with enough clearance for the studs mounting the rotor to the hat and one stud hit the mounting pad under heavy braking. Easy fix and SRT sent me two rear rotors for my trouble..
How hard are you guys pushing in your Z06s? Are you threshold braking routinely at the limit? Is it a few laps or 10 or more hard successive laps?
I went with a Z06 with Z07 aero and CCBs to have the ultimate street car version. But that’s because it will primarily/exclusively be a street car. I race a formula car in SCCA nationals and the pro series and am use to driving 9.5 to 10/tenths in a race or qualifying. But qualifying and practice are usually a few (2-5) hot laps and then a cool down. So I wonder how the CCBs will hold up to aggressive threshold braking on a track day? The 24 hr brake testing data from GM makes shows them replacing rotors every 4 hrs of hard race driving.
Perhaps limited hot laps followed by cool down laps like in a qualifying session will make the CCBs doable.
How hard are you guys pushing in your Z06s? Are you threshold braking routinely at the limit? Is it a few laps or 10 or more hard successive laps?
I went with a Z06 with Z07 aero and CCBs to have the ultimate street car version. But that’s because it will primarily/exclusively be a street car. I race a formula car in SCCA nationals and the pro series and am use to driving 9.5 to 10/tenths in a race or qualifying. But qualifying and practice are usually a few (2-5) hot laps and then a cool down. So I wonder how the CCBs will hold up to aggressive threshold braking on a track day? The 24 hr brake testing data from GM makes shows them replacing rotors every 4 hrs of hard race driving.
Perhaps limited hot laps followed by cool down laps like in a qualifying session will make the CCBs doable.
If this makes them last significantly longer to the point they are actually close to iron in running costs, then I might be in.
How hard are you guys pushing in your Z06s? Are you threshold braking routinely at the limit? Is it a few laps or 10 or more hard successive laps?
I went with a Z06 with Z07 aero and CCBs to have the ultimate street car version. But that’s because it will primarily/exclusively be a street car. I race a formula car in SCCA nationals and the pro series and am use to driving 9.5 to 10/tenths in a race or qualifying. But qualifying and practice are usually a few (2-5) hot laps and then a cool down. So I wonder how the CCBs will hold up to aggressive threshold braking on a track day? The 24 hr brake testing data from GM makes shows them replacing rotors every 4 hrs of hard race driving.
Perhaps limited hot laps followed by cool down laps like in a qualifying session will make the CCBs doable.
You have a valid point. I threshold brake when I can, but per session I usually run one warm-up lap and 3-5 hot laps before I get in traffic - then I cool down for a lap and come off track. When I run HPDE for fun, I am usually in traffic and typically only get 2 or 3 good, unobstructed laps with significant threshold braking out of a 12 or so lap session. All-in-all, it's pretty easy on the brakes.
I have this 390 and 378 mm 1" pad setup on my z that was ccb. on stingray I have ap 9668 front and oem rear and z07 is stock ccb. here is my experience and let's just talk z06.
ap full brake with 25 mm ds3.12, 0 worries and i will run this thing to gas is dry at chin 1 hr happy hour. I started out with ap front and faded the rear ccb because track wheel tire size is off and I believe esc is kicking on often. I did 2 yellow laps and on 1st hard lap pushing it faded within half a lap and I almost hit the wall. this is in sports mode competition.
on z07 with ccb i just run a few laps and let it cool. no doubt if i drive it hard it will fall apart like buddy's gt3rs ccb, see photo. the ccb wheel is also a pain and cost $483 to mount all 4 yesterday.
if i had iron z06 and want to save money, just run ap front and rear racing pads. i believe if i had race pads in rear it would not have faded and scared the **** out of me on track.
once you almost hit a wall because brakes, screw try to save money. rear front
Originally Posted by mfain
The new, big AP brakes for the Z06 have 390mm front and 378mm rear rotors. Add the price of pads, and that set is around $13K, but they are like fine jewelry.
stock brake wirh race pads are solid but for how long? problem after 6 months, your dust boot will be all burned up. with your setup you are not worry about fade imho but boil race fluid. friend with race pads and castro srf boiled his fluid in zl1. that event got him to install competition brakes immediately. low chance but I don't want to take that chance.
Originally Posted by Electron Mike
I was surprised how good the stock iron brakes were on track, especially with upgraded aftermarket pads. But even with stock pads they are solid. Stock front pads wear fast but otherwise very impressive. I also drove a friends Z07 on track back to back with my Z06, and in my opinion the CCBs did offer more bite and better overall braking... but, it's not apples to apples since the Z07 also has CUP2R vs my 200TW Nankang and more downforce.
stock brake wirh race pads are solid but for how long? problem after 6 months, your dust boot will be all burned up. with your setup you are not worry about fade imho but boil race fluid. friend with race pads and castro srf boiled his fluid in zl1. that event got him to install competition brakes immediately. low chance but I don't want to take that chance.
I haven't boiled SRF in any car personally after using it on many different makes, including 3 ZL1's.. but sure if you drive it hard enough with nannies on I'm sure it's possible. No doubt the AP brakes are better for the track, I may switch to them eventually if I have issues. But I also only drive 8/10's max in a DE, use 200 TW tires to limit mechanical stress, turn off ESC/TC, and don't drive my street car with no mechanical sympathy like a true race car. Still plenty fast, but more comfortable for me personally to have extra margin.
The nannies contribute a great deal to pad wear especially in the rear.
I do wonder about this, in my Porsche world, I rarely ever have my nannie’s kick in, and when they due, it’s due to mistake I made. I have been tracking for about 4 years now, and nannie’s haven’t kicked in on me for 10-12 track events, I’ve really learned how to balance the car. So for the Z06, wonder exactly how good the nannie’s are, are they overly intrusive? With my time at RF School, the Z51 felt insanely good, so ya, no idea how much the Nannie’s help/hurt in these new Z06’s
at track today, tracking z06 with z07 on srf the pad faded in both morning sessions and it is in 60s on michelin 2r. got less 12 miles on track before 1st fade and 2nd even less. white z on full ap brakes 0 issues but on 4s so not really apple vs apple comparison. Just reporting my findings
03-27-2024, 02:01 PM
