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Old 11-06-2018, 07:07 AM   #1
j o n

 
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Another Z/28 goes through Bring A Trailer

Another Z/28 goes through Bring A Trailer
-2015
-$40k
-12k mi
-White
-162 laps on track

https://bringatrailer.com/listing/20...omment-2670851

One person's comment to the auction was laughable:
"I owned a 2014 Z/28. I loved it so much I bought the Z/28.R.
This is a track beast and will most likely never be driven to its potential by most drivers. So many positive comments can be made about the 2014/15 Z28. My favorite is the low rpm torque. Snap the throttle and the power band is immediate. That being said……….the pitfalls can be replacing carbon ceramic brake rotors. Back when I checked it was around 10 grand.
"

Who in the hell is that guy?
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Sold:
- '15 Z/28 #0048 | White | A/C | Speakers | Michelin PS4S 305/30/19's
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Old 11-06-2018, 08:19 AM   #2
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How many Z/28.R's were there?
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Old 11-06-2018, 08:22 AM   #3
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Quote:
Originally Posted by DasBaldDog View Post
How many Z/28.R's were there?
4 iirc
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Old 11-06-2018, 08:34 AM   #4
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His guess is high, but not THAT high. I mean, even if you find a good deal on them it's still about 5.5-6k on the rotors. Main reason I swapped out to Girodiscs lol.

$40.25k for that car was a steal.
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Old 11-06-2018, 08:48 AM   #5
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I guess he was trying to say the rotors are just expensive to replace, but 10 grand? 1/4 of what my car's price was.
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Old 11-06-2018, 08:51 AM   #6
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Cheapest, doing a quick search, as of today is:
$1250/ea for fronts
https://www.ebay.com/p/2014-15-Chevy...6320122&chn=ps
$1300/ea for rears
https://www.ebay.com/p/2014-2015-Cam...5672581&chn=ps
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Old 11-06-2018, 11:03 AM   #7
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That 10 grand figure was real life back in..09 or so when the ZR1 hit the shelf. That figure has stuck in people head ever since, it used to be 10G's for the ZR1 parts. The thread floated around forever with OMG look how much the CCB kit is!! Last I checked at GM it was like 1500/rotor +/-. Thats mostly wasted info, the number of people who will need rotors is very low, compared to the 1801 cars built.

I've said 1000 times, the first person to make a kit to fit ZL11LE brakes to the 5th gen is going to make a killing. They are SO close in fitment.
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Old 11-06-2018, 11:20 AM   #8
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Originally Posted by 1970judge View Post
I've said 1000 times, the first person to make a kit to fit ZL11LE brakes to the 5th gen is going to make a killing. They are SO close in fitment.
I may have already done this I have ZL1 fronts on my car
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Old 11-06-2018, 11:53 AM   #9
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Originally Posted by kramard View Post
I may have already done this I have ZL1 fronts on my car

What rears do you run?
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Old 11-06-2018, 01:18 PM   #10
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Quote:
Originally Posted by kramard View Post
I may have already done this I have ZL1 fronts on my car
I made a post about this and got nowhere. Please elaborate. Are You running the zl1 rings on the z28 hats? Stock pad work or have to use a Nissan GTR style pad?
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Old 11-06-2018, 01:58 PM   #11
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Originally Posted by MX621 View Post
I made a post about this and got nowhere. Please elaborate. Are You running the zl1 rings on the z28 hats? Stock pad work or have to use a Nissan GTR style pad?
Yes, ZL1 rings, z/28 hats, zl1 hardware to assemble and stock zl1 pads. I've only street tested but seems to stop better then CCBs. Initial bit sucks compared to CCBs but I think there's better stopping (trigger rear ABS just before front triggers) w/ heated tires.

Not sure what I'm going to do on rears yet - I might test fit the 390 * 36 ZL1 discs on the rear and see how that fits - they're 4mm wider then our CCB and I'm not sure the bolt pattern is the same but I have no measured yet. Don't know what I'd do for pads either.
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Old 11-06-2018, 02:10 PM   #12
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This is fantastic news. Few weeks ago I asked if this was possibly based on the info I read on the gen 6 forum, racing brake ccr rotor conversion thread. How was the pad fitment? Any pad/rotor overhang?
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Old 11-06-2018, 02:28 PM   #13
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Quote:
Originally Posted by kramard View Post
Yes, ZL1 rings, z/28 hats, zl1 hardware to assemble and stock zl1 pads. I've only street tested but seems to stop better then CCBs. Initial bit sucks compared to CCBs but I think there's better stopping (trigger rear ABS just before front triggers) w/ heated tires.

Not sure what I'm going to do on rears yet - I might test fit the 390 * 36 ZL1 discs on the rear and see how that fits - they're 4mm wider then our CCB and I'm not sure the bolt pattern is the same but I have no measured yet. Don't know what I'd do for pads either.

What about the RB set up on the rear while using the ZL1 up front with something like the Ferodo race pads at each corner? Would this be a possibility? Or would it just make more sense to just use the RB conversion all around?

While I don't yet have the Z28 in my possession, I will need an iron conversion for sure.

I don't even know who makes race compounds for the Z28 6 piston calipers... are there many options?


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Old 11-06-2018, 02:36 PM   #14
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Quote:
Originally Posted by Biergut View Post
What about the RB set up on the rear while using the ZL1 up front with something like the Ferodo race pads at each corner? Would this be a possibility? Or would it just make more sense to just use the RB conversion all around?

While I don't yet have the Z28 in my possession, I will need an iron conversion for sure.

I don't even know who makes race compounds for the Z28 6 piston calipers... are there many options?


IIRC correct someone had an issue with a RB front cracking early (please don't quote me here) - Giro disc all round would be the way I'd lean as I have personally seen these on track with very fast / hard drivers hold up well.

Giro disc rings are 800 vs ZL1 rotors for 720 so it's pretty close. I don't know what pad options are for the rear yet.

The pads are identical in shape and I didn't observe any overhang - my understanding is that the 394mm rotors only had an effective surface area of 390.
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