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Camaro Z/28 Forum - Z/28 Specific Topics Discussions related to the 5th gen Camaro Z/28 model

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Old 10-19-2013, 08:57 PM   #13701
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The ZL1 brakes are quite good and can handle by my guestimate about 10 laps before they begin to fade away if the driver is running hard. The inter-cooler is pretty effective, but at some point on track heat soak will become an issue. In a 25 lap event at the Ring the Z/28 brakes will be the same on lap 3 as they are on lap 25 or 50. Why lap 3? CC brakes love heat. Based on brakes alone the Z/28 would win by a significant margin. All LS motors are furnaces. The LS7 should hold more off the baseline HP longer than the LSA in the ZL1.

Add CC brakes and 305 rubber to the ZL1 and the ZL1 gets faster. More from the tires than the brakes. CC brakes on the ZL1 will eliminate brake fade for the longer runs. The ZL1 gains 5 seconds on the Z/28.

Tires. The Z/28 runs Trofeo 305/30/19s. The Z/28 with less nose weight and lighter overall will be easier on tires. The last five laps will be telling. The hotter greasier tires on the ZL1 will slow the ZL1 down. While the ZL1 tires are fading the Z/28 drop off will not be as great. The Z/28 pull away on each of the last five laps for no other reason than tires.

There are other differences. The Z/28 aero creates down force and increases corning speeds. The ZL1 aero is more about preventing lioft than creating down force.

The Z/28 differential is intended for road course work. The ZL1 cast iron diff is tough as nails, but not as good at putting power down in the corners.

Two very competent automobiles. One is a hybrid grand touring / muscle car. The other is a hybrid track / street car. Both are at the top of thier class
...great info Pete, thanks for the insight. Clear, complete, and concise! Excellent post.....
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Old 10-19-2013, 10:27 PM   #13702
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Even a blind pig gets lucky and finds some corn now and again.
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Old 10-19-2013, 10:39 PM   #13703
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It is awesome to be related to the Z! I love when Al talks about it he uses words like; angry, and bad ass.

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Old 10-19-2013, 11:14 PM   #13704
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...up north we say a blind squirrel gets lucky and finds a nut once in a while....., cool phrase....
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Old 10-19-2013, 11:16 PM   #13705
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...up north we say a blind squirrel gets lucky and finds a nut once in a while....., cool phrase....
as is In Scott we TRUST
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Old 10-19-2013, 11:24 PM   #13706
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as is In Scott we TRUST
Amen brother! Scott is the foundation of Camaro faith and product development. No doubdt.
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Old 10-20-2013, 08:56 PM   #13707
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If you are a weekend warrior you are not going to run stock tires on it. You ARE going to put a helmet on. You are going to put good gas in it. You are going to belt yourself in. You ARE going to compete. If you truly are a competitor. You're not going to run weak tires, etc. GM stripped it down and jacked up the price based on speed based on reduced weight? OK. I get it. Put some good tires on the ZL1 for a decent comp. Fair? Nothing against the new edition either. Just saying lets compare when/can with simple tire equality. Then lets see if the weight reduction, engine, and rotor setup really cleans up the "Legend" or not.

PS: Just a response to above comments.... seems like he is focused on the ZL1. The z28 is still DYNOMITE!
I'm not really focused on the ZL1. I was just commenting about what someone said earlier that the 3.8 second advantage the Z/28 had over the ZL1 wasn't really worth the extra cost. To some, it is.

I guess during a longer run, like the 25 or 50 lap race I mentioned, that 3.8 second advantage will grow as the ZL1 brakes begin to fade and the car begins to heatsoak. That 3.8 second advantage could grow exponentially.
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Old 10-20-2013, 09:03 PM   #13708
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I'm not really focused on the ZL1. I was just commenting about what someone said earlier that the 3.8 second advantage the Z/28 had over the ZL1 wasn't really worth the extra cost. To some, it is.

I guess during a longer run, like the 25 or 50 lap race I mentioned, that 3.8 second advantage will grow as the ZL1 brakes begin to fade and the car begins to heatsoak. That 3.8 second advantage could grow exponentially.
Go back and read some more, that 3.8 second advantage was only on the video "rain affected" run, they turned a much faster lap on a dry track down around 7:31. So closer to a 10 second advantage per lap for the Z/28 without even thinking about heat soak and brake fade. And we're thinking they might even get it down in to the 7:30 range.
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Old 10-21-2013, 04:40 AM   #13709
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Even a blind pig gets lucky and finds some corn now and again.
Now Pete, you're being a little too humble..

I think you're gonna have to lick that calf over.


[ DOWN HOME COLLOQUIALISM FIGHT ! ]




By the way, I'm loving the excitement. My guestimate is a 7:30.xx for the Z and 7:29ish for the C7z.

Eventually...
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Old 10-21-2013, 09:56 PM   #13710
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Let's be more complete in our thinking. He mentioned 25 & 50 laps. There's more to it than tires when your going to do 25 or 50 laps.
Your comment is just a distraction from the issue I mentioned. Nice try tho.
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Old 10-21-2013, 09:59 PM   #13711
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...ok 90503.....whatever....
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Old 10-21-2013, 10:06 PM   #13712
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I'm not really focused on the ZL1. I was just commenting about what someone said earlier that the 3.8 second advantage the Z/28 had over the ZL1 wasn't really worth the extra cost. To some, it is.

I guess during a longer run, like the 25 or 50 lap race I mentioned, that 3.8 second advantage will grow as the ZL1 brakes begin to fade and the car begins to heatsoak. That 3.8 second advantage could grow exponentially.

Oh for sure longer the race the more each factor comes in to play. What might happen if one changed the stock brake pads out? Any improvement? (Pete'?) Depending on those 25 laps and how many long straightaways they have could also play into it...re heat soak I hear the z28 really runs hotter than the zl1 ... Not sure why but it was recently stated. Maybe al said it... Don't remember. Cost.... Issue sure will be interesting to see what this costs with any creature comforts. Wonder how many will NOT add a/c too. Those who do will likely add radio etc. Will 50% be purchased with optional equipment ? And if so will they track them ? This next summer will prove interesting. Especially to see what the 2015 model will bring. The likely cost premium in total will likely be quite limiting.
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Old 10-21-2013, 10:09 PM   #13713
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...ok 90503.....whatever....
:bahahaha:

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Old 10-21-2013, 10:28 PM   #13714
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...ok 90503.....whatever....
Huh?...What?...Now what did I do?...lol
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Old 10-22-2013, 11:30 AM   #13715
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I think Paul Huizenga from LSXTV sums the Z/28's performance pretty well:

-''Chevy has hit the mark with the Z/28, though it might not be the mark your average Camaro fan would have aimed for in the first place. Some will say it goes too far, while others will say it doesn’t go too far enough. We think that Chevy has split the difference neatly, with a Camaro that isn’t so hardcore that it will revolutionize the way rich guys run out of talent, but will still provide a level of performance so high that most owners will really have to step up to reach it.
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Old 10-22-2013, 11:48 AM   #13716
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At this point it would make my year just to get a ride along. I have had dreams of Chevy bringing several to the fest in may for the ride 'n drive experience.
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Old 10-22-2013, 03:46 PM   #13717
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I think Paul Huizenga from LSXTV sums the Z/28's performance pretty well:

-''Chevy has hit the mark with the Z/28, though it might not be the mark your average Camaro fan would have aimed for in the first place. Some will say it goes too far, while others will say it doesn’t go too far enough. We think that Chevy has split the difference neatly, with a Camaro that isn’t so hardcore that it will revolutionize the way rich guys run out of talent, but will still provide a level of performance so high that most owners will really have to step up to reach it.
Yep... a "reach" to about the current Z06 price! True that!
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Old 10-22-2013, 06:37 PM   #13718
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Yep... a "reach" to about the current Z06 price! True that!
It cant be that close to the Z06 pricing otherwise it makes no sense. Its going to be right in the middle between the $55k ZL1 and the $75k Z06.
$65k base price with options at $70k.
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Old 10-23-2013, 06:39 AM   #13719
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It cant be that close to the Z06 pricing otherwise it makes no sense. Its going to be right in the middle between the $55k ZL1 and the $75k Z06.
$65k base price with options at $70k.
Certainly! Totally Agree. I am just saying that the $70k is much closer to Z06 territory than the $58K loaded (non vert) ZL1. And don't forget there are dealers out there who significantly discount the Z06 down to $70K. Look at these examples http://www.citychevrolet.com/chevrolet-corvette/

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Old 10-23-2013, 09:57 AM   #13720
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Right....we will see in January!
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Old 10-24-2013, 11:31 AM   #13721
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The Z/28 is nice. Then there is the Lingenfelter Pedders L/28 dressed up, ready for SEMA and the OPTIMA Ultimate Street Car Invitational (OUSCI).



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Old 10-24-2013, 11:32 AM   #13722
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The Z/28 is nice. Then there is the Lingenfelter Pedders L/28 dressed up, ready for SEMA and the OPTIMA Ultimate Street Car Invitational (OUSCI).



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What's the Hood?
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Old 10-24-2013, 11:42 AM   #13723
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Very cool! I'd love to see this and the Z/28 tested together.
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Old 10-24-2013, 12:44 PM   #13724
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A Lingenfelter built LS7 that puts down over 600 RWHP

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Very cool! I'd love to see this and the Z/28 tested together.
It will never happen. The Z/28 has 450 RWHP max. We are over 600 RWHP. Everything is over-built on the L/28 from the engine to the rear wheels. Even the Pedders suspension has been tweaked. one example is the custom lower rear inner control arm bushing replacement that uses banded thrust bearings.

The Z/28 aero is better. The Z/28 CC brakes should be better, but our Brembo setup with special pads should be good enough to hang in with them.

The Z/28 is a momentum car on track. The L/28, IMHO, will out handle the Z/28. I could be wrong, but I doubt it. Even if the handling were even, the L/28 would pull it on the straights more like a ZR1 than a Zl1. Let's call the Z/28 an 8 for handling and a 7 for acceleration compared to the best-of-the-best Pro-Touring cars. We run with the best-of-the-best from the Pro-Touring circuit so we'll call it a 9 and a 9. Why a 9, nothing is perfect.

Pedders has a bi-polar relationship with GM. We help GM sell Camaros. We make Camaro news for GM and show the product to be incredibly capable. I also understand how some on the Camaro Engineering TEAM feel when we replace parts they have invested so much of themselves into. My post today is some what offensive to some. It shouldn't be. I cannot see GM releasing a 700 FHP normally aspirated engine with a full Chevrolet warranty at this time with current technology. They are not going to release a Camaro with a Quartermaster clutch. If you haven't driven a big cam high revving LS7 with an on off switch for a clutch, it isn't exactly a street car for most people. Some of us love it. Most would not tolerate it. The Z/28 is a production track and street star. The L/28 is a custom track star and street car for a select few.
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Old 10-24-2013, 12:47 PM   #13725
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The Z/28 is nice. Then there is the Lingenfelter Pedders L/28 dressed up, ready for SEMA and the OPTIMA Ultimate Street Car Invitational (OUSCI).



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Sweet. Is that a wrap with RJT underneath or is it repainted?
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