Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com
 
Tower Decals
Go Back   Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com > General Camaro Forums > Camaro Z/28 Forum - Z/28 Specific Topics

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

Reply
 
Thread Tools
Old 04-02-2013, 10:20 AM   #1
Mr. Wyndham
I used to be Dragoneye...
 
Mr. Wyndham's Avatar
 
Drives: 2014 Camaro 1LE
Join Date: Jan 2007
Location: Buffalo, NY
Posts: 25,787
Send a message via AIM to Mr. Wyndham
Lightbulb Camaro5 NYIAS Interview Series (1/7): Mark Stielow on the 2014 Camaro Z/28


Featured on Camaro5 HOMEPAGE


I had the pleasure of interviewing a bunch of awesome folks from GM at the NYIAS during the media day, and I think you'll enjoy reading what they had to say about their recent Camaro work.

Feel free to ask any questions - and I may be able to elaborate.

Quote:
Interview with Mark Stielow – Engineering Manager, Camaro Z/28
3/27/13
by J. Bella, Camaro5.com

How do the mechanical components of the suspension in the Z/28 compare to the ZL1?

We went to higher spring rates in the Z/28, and we lowered it 33mm over what an SS car is. We wanted to have that hunkered-down, really stiff roll gradient, high spring rate, enthusiast kind of car. It’s more athletic to me, with the lighter weight and the LS7 – it’s got an athletic feel to the car.

Can you describe the Z/28 dampers to enthusiasts?

They’re a formula one technology; A new valving technology that we wanted to look at. With a niche-market car we can sometimes look at really new technologies, and these new dampers were one of them.

They’ve got a unique spool valve inside that allows us to almost draw the shock curve we want, and laser-etch it into the valve. So it really quickened up the development process, and allowed us to do some stuff with the shock valving that’s not as easy to do with a more traditional shock.

It’s a different technology then even the MR, which has more of a bi-modal operation. It’s more firm, but in a track car it really plants the car well. At Virginia International Raceway, when we were testing it, coming up through the high-speed esses, the car was just nailed down and felt great.

Would you say the Z/28 is confidence inspiring, or frightening when you drive it?

With the brakes, having that very repeatable firm brake pedal; the tires, with a 1.05 max lat. capability, it’s really confidence inspiring. The capability of the car is going to be well above a lot of people’s normal realm of exposure.

Since the Camaro team has been out seeing what enthusiasts are doing on their cars, was anything on this car inspired by any of that?

Oh, definitely. We’ve gone to shows like the Camaro5 events, and even at GM we had a show car with the LS7 not so long ago. We kind of watched what other people are doing, but internally we’re all car enthusiasts, too. This is a car that we wanted, it’s a car that is just fun to drive!

Did anything change about the LS7 since its been in the C6 Z06?

We went through a redesigned the exhaust. The Z/28 actually has a true 3” exhaust, so it reduced the backpressure to allow the big naturally aspirated engine to breath well, and it’s got nicely done exhaust manifolds, and larger monolithic cats. Then we went to a really nice, big induction system with an open element air filter by K&N. This marks our first OE application with that type of filter. So we tried to lower the restriction on both the induction and exhaust sides to optimize the power output of the LS7.

Did this car break down any walls or old ways of thinking about the development process of performance cars?

Not really. I was part of the HPVO, the high performance vehicle operations group. And that’s kind of the core group of us that does the performance variants, now. So this car is in that genre of being a performance variant within the more mainstream Camaro family. Like the ZL1 or the 1LE, to a certain degree, were performance variants of the base architecture.

But we were able to go to “the toolbox” of available components, like the carbon ceramic brakes, or the LS7 engine, and were able to do a little “shopping” to get some parts that were available and integrate them together to make a good car.

What other cars in the segment, or price range (and I know there haven’t been prices yet) have carbon ceramic brakes?

They’re in production on our Z06 carbon, and ZR1 Corvettes. So those brakes are very similar hardware to what we’ve had in production for a while. But nothing in the pony car market has ever had these brakes put on them before.

The benefit of these brakes is mass, wear, and a very consistent brake feel lap after lap. The rotors are “worn out” when they’ve burned out so much carbon that they get too light, so the rotors will last the life of the car for many customers.

There appears to be an extensive aerodynamics package on the Z/28, does the car create down force?

Yes. We spent a lot of time in the wind tunnels and in scale models to get the splitter on the front of the car, the extractor hood, the big spoiler in the back, the rocker moldings, and the little wickers on the fender flares. All that really generates positive down force as you gain speed, and the car is really stuck to the track because of it.

Would you label this car as an evolution of the 1LE performance package, an evolution of the ZL1, or something completely different?

It’s something completely different. You know, the way the whole package integrates together it’s kind of a continuation of the performance of the Camaro family. The SS is fast, the 1LE is faster yet, the ZL1 is one of the fastest pony cars out there, and the Z/28 is one step above even that. It’s the peak track performance car, and will be for the enthusiasts want to take a car and have a very enjoyable experience laying down lap times.

How livable is this car on the road…not racing?

If you’ve ever driven a car like the Porsche 911 or something like that, it has a very athletic feel. The spring rates are higher, the ride frequencies are higher, the car’s a lighter weight car, the gearbox is nice and short throws with the high-compression LS7…it’s a very athletic feeling Camaro. It’s very light and nimble.

Speaking of driving it every day, we did an eight-hour night ride where we drove 300 miles in one night. And the car is just a hoot to drive on the street.

Anything special or specific you’d like people to focus on when looking at this car?

I think one of the things that people are going to get pretty excited about are the new performance seats: I mean, they’re really comfortable. And the car, when you see it, has a very menacing presence to it. It’s very low and wide and has a unique stance when it’s coming down the road at you.
Full interview list:

Interview 1: Mark Stielow (Chief Engineer of Z/28)
Interview 2: John Fitzpatrick (Marketing Manager for Chevrolet Performance Cars)
Interview 3: Helen Emsley (Director of Interior Design for Performance Cars)
Interview 4: Mary Barra (GM Senior Vice President, Global Product Development)
Interview 5: Russ Clark (Director of Marketing, Performance Cars)
Interview 6: Tom Peters (Director, Exterior Design)
Interview 7: Ed Welburn (Vice President of Global Design)
__________________
"Keep the faith." - - Read Before You Post.
SIGN UP for 2014 Camaro5 HPDE @ Gingerman Raceway!
Mr. Wyndham is offline   Reply With Quote
Old 04-02-2013, 10:32 AM   #2
90503


 
Drives: 2011 2SS/RS LS3
Join Date: Nov 2011
Location: Torrance
Posts: 10,255
...Interesting about the street driving...I think once that issue is put to rest, a lot of angst will go away...

...Perhaps a "tire" option for the street at least?...
90503 is offline   Reply With Quote
Old 04-02-2013, 10:34 AM   #3
Mr. Wyndham
I used to be Dragoneye...
 
Mr. Wyndham's Avatar
 
Drives: 2014 Camaro 1LE
Join Date: Jan 2007
Location: Buffalo, NY
Posts: 25,787
Send a message via AIM to Mr. Wyndham
Quote:
Originally Posted by 90503 View Post
...Interesting about the street driving...I think once that issue is put to rest, a lot of angst will go away...

...Perhaps a "tire" option for the street at least?...
No, definitely not. It, more than even the ZL1, was built to do one thing - and a major part of that performance is coming from the tire. People need to understand what they're buying is a no-compromises, but "street-legal", track car with the Z/28.
__________________
"Keep the faith." - - Read Before You Post.
SIGN UP for 2014 Camaro5 HPDE @ Gingerman Raceway!
Mr. Wyndham is offline   Reply With Quote
Old 04-02-2013, 10:36 AM   #4
bdstealth
 
bdstealth's Avatar
 
Drives: 2SS/RS White/blk int.M6,GFX
Join Date: Mar 2009
Location: Central New York
Posts: 748
Thanks
__________________

(Click above image to learn about UpstateC5)
bdstealth is offline   Reply With Quote
Old 04-02-2013, 10:52 AM   #5
90503


 
Drives: 2011 2SS/RS LS3
Join Date: Nov 2011
Location: Torrance
Posts: 10,255
As far as "filtering-down" and "tools in the tool box"...

1Le was given ZL1 suspension upgrades, etc........Any chance the introduction of the LS7 into this Gen5 Z/28 might filter down to SS or 1LE models in the 5thGen?..

.How available of a tool might the LS7 for assembly line use be for the remainder of the 5th Gen?...
90503 is offline   Reply With Quote
Old 04-02-2013, 11:05 AM   #6
Mr. Wyndham
I used to be Dragoneye...
 
Mr. Wyndham's Avatar
 
Drives: 2014 Camaro 1LE
Join Date: Jan 2007
Location: Buffalo, NY
Posts: 25,787
Send a message via AIM to Mr. Wyndham
Quote:
Originally Posted by 90503 View Post
As far as "filtering-down" and "tools in the tool box"...

1Le was given ZL1 suspension upgrades, etc........Any chance the introduction of the LS7 into this Gen5 Z/28 might filter down to SS or 1LE models in the 5thGen?..

.How available of a tool might the LS7 for assembly line use be for the remainder of the 5th Gen?...
1LE doesn't actually share many suspension components with the ZL1...it shares wheels, tires, shifter, transmission ratios, maybe a rear sway bar, too...but they are two very separate suspension calibrations.

The LS7 is a hand-built engine (not on an assembly line), and it's very expensive. More costly than even the LSA in the ZL1. It's very likely that the Z/28 will be its one and last application before it's retired for good when the Gen V engines take hold.

What did filter down already, from the Z/28 was the functional hood vent to the SS, the rear diffuser (also functional) to the SS, and the Recaro seats....But there's a lot of new stuff on the car, like the open induction, F1-style shocks, etc that we can hope will make its way down in the future.
__________________
"Keep the faith." - - Read Before You Post.
SIGN UP for 2014 Camaro5 HPDE @ Gingerman Raceway!
Mr. Wyndham is offline   Reply With Quote
Old 04-02-2013, 11:31 AM   #7
Z/284ever
 
Drives: A few Camaros
Join Date: Dec 2012
Location: Chicagoland
Posts: 27
Great interview, Joe!

BTW, I've got a question for you. Do you sense that the Z/28 will become a permanent part of the Camaro line up going forward, or is this a short lived, special edition?
Z/284ever is offline   Reply With Quote
Old 04-02-2013, 11:52 AM   #8
Mr. Wyndham
I used to be Dragoneye...
 
Mr. Wyndham's Avatar
 
Drives: 2014 Camaro 1LE
Join Date: Jan 2007
Location: Buffalo, NY
Posts: 25,787
Send a message via AIM to Mr. Wyndham
I got the distinct impression this would be part of the lineup going forward. At the very least for the 5th generation.

Russ Clark seemed to think so. And when I spoke with John Fitzpatrick, he made an encouraging comment: "In the back of our minds, since 2010, the Z/28 always existed". So...it would appear that the team understands that the names "Camaro" and "Z/28" are synonymous with each other. Good stuff!
__________________
"Keep the faith." - - Read Before You Post.
SIGN UP for 2014 Camaro5 HPDE @ Gingerman Raceway!
Mr. Wyndham is offline   Reply With Quote
Old 04-02-2013, 12:28 PM   #9
RubyCamaro
SSlayer
 
RubyCamaro's Avatar
 
Drives: 2010 Camaro 1LT Red Jewel tintcoat
Join Date: May 2010
Location: Springfield, TN
Posts: 13,011
Very cool read! Interesting. Thanks.
__________________
RubyCamaro is offline   Reply With Quote
Old 04-02-2013, 12:32 PM   #10
90503


 
Drives: 2011 2SS/RS LS3
Join Date: Nov 2011
Location: Torrance
Posts: 10,255
Inquiring minds want to know...lol....As far as re-freshes, intro of new models, engine variants (V-8 and V-6)...is the 5thGen of Camaro as it is now, for practical purposes, time-frames, etc,. all done overall?....

2 (yrs)?? 1 1/2?? to go before the 6thGen...??
90503 is offline   Reply With Quote
Old 04-02-2013, 12:38 PM   #11
Mr. Wyndham
I used to be Dragoneye...
 
Mr. Wyndham's Avatar
 
Drives: 2014 Camaro 1LE
Join Date: Jan 2007
Location: Buffalo, NY
Posts: 25,787
Send a message via AIM to Mr. Wyndham
Quote:
Originally Posted by 90503 View Post
Inquiring minds want to know...lol....As far as re-freshes, intro of new models, engine variants (V-8 and V-6)...is the 5thGen of Camaro as it is now, for practical purposes, time-frames, etc,. all done overall?....

2 (yrs)?? 1 1/2?? to go before the 6thGen...??
All I got were smiles and "we're never finished".

But...a little thought would suggest brand new awesome models like 1LE, ZL1, Z/28....are done...this is my thoughts, and not representative of any interviews/discussions, though.
__________________
"Keep the faith." - - Read Before You Post.
SIGN UP for 2014 Camaro5 HPDE @ Gingerman Raceway!
Mr. Wyndham is offline   Reply With Quote
Old 04-02-2013, 12:39 PM   #12
Z/284ever
 
Drives: A few Camaros
Join Date: Dec 2012
Location: Chicagoland
Posts: 27
Quote:
Originally Posted by Mr. Wyndham View Post
I got the distinct impression this would be part of the lineup going forward. At the very least for the 5th generation.

Russ Clark seemed to think so. And when I spoke with John Fitzpatrick, he made an encouraging comment: "In the back of our minds, since 2010, the Z/28 always existed". So...it would appear that the team understands that the names "Camaro" and "Z/28" are synonymous with each other. Good stuff!

I'm really pleased with how focused the Z/28 is. I had a chance to chat with Russ recently, and I agree, as far as the Z/28, he "gets it".
Z/284ever is offline   Reply With Quote
Old 04-02-2013, 01:10 PM   #13
T4JEt
 
T4JEt's Avatar
 
Drives: 2011 Camaro LT1 with RS Package
Join Date: Mar 2013
Location: Virginia
Posts: 91
Send a message via Skype™ to T4JEt
Great idea with this series of interviews... Quite interesting.
__________________
- Todd

T4JEt is offline   Reply With Quote
Old 04-02-2013, 01:36 PM   #14
Zfatuated

 
Drives: BAC Mono
Join Date: Apr 2013
Location: Reno
Posts: 839
Really great look at more details, thank you for posting this!

The new suspension, the DSSV, this is from Multimatic correct? The shock/struts are true coilovers with adjustable spring perches for ride height and corner balancing? Going even further, are they owner adjustable 2/3 or 4-way adjustable? Remote mounted reservoirs?
Zfatuated is offline   Reply With Quote
Old 04-02-2013, 01:41 PM   #15
Mr. Wyndham
I used to be Dragoneye...
 
Mr. Wyndham's Avatar
 
Drives: 2014 Camaro 1LE
Join Date: Jan 2007
Location: Buffalo, NY
Posts: 25,787
Send a message via AIM to Mr. Wyndham
Quote:
Originally Posted by Zfatuated View Post
Really great look at more details, thank you posting this!

The new suspension, the DSSV, this is from Multimatic correct? The shock/struts are true coilovers with adjustable spring perches for ride height and corner balancing? Going even further, are they owner adjustable 2/3 or 4-way adjustable? Remote mounted reservoirs?
No user-adjustability. And I don't believe they are "true" coil overs.

From their press release (to support and supplement comments by Mark Stielow, above:

"The Camaro Z/28 is the one of the first production cars fitted with race-proven, spool-valve dampers. Compared to a conventional damper that offers only two-way tuning for bump and rebound, a spool-valve damper allows four-way adjustment to precisely tune both bump and rebound settings for high-speed and low-speed wheel motions. The wider tuning range allowed engineers to dramatically increase the damper stiffness on the Camaro Z/28 without a significant change in ride quality. Additional chassis changes include stiffer string rates and suspension bushings for improved cornering response."
__________________
"Keep the faith." - - Read Before You Post.
SIGN UP for 2014 Camaro5 HPDE @ Gingerman Raceway!
Mr. Wyndham is offline   Reply With Quote
Old 04-02-2013, 06:32 PM   #16
68vert
 
68vert's Avatar
 
Drives: 2010 SIM SS/RS, 1968 RS convertible
Join Date: Sep 2008
Location: Wilmington, NC
Posts: 727
“We used the very best components in the industry to deliver uncompromised performance, lap after lap,” said Mark Stielow, Camaro Z/28 engineering manager. “We made nearly 200 changes to improve the track performance, which cumulatively make the Z/28 capable of 1.05 g in cornering. For perspective, with all other things, equal increasing maximum grip from 1 to 1.05 g can cut up to four seconds per lap.”

If possible, can an elaboration be made on these 200 changes. (Besides the known items)

And grats to Stielow for building another world class first-gen Camaro!
Attached Images
 
__________________
2010 SIM SS/RS see garage for mods
68vert is offline   Reply With Quote
Old 04-02-2013, 08:50 PM   #17
DrkPhx

 
DrkPhx's Avatar
 
Drives: 2013 Triple Black ZL1 / 2006 TB SS
Join Date: Feb 2011
Location: St Michael, MN
Posts: 914
Good interview and thanks for sharing.

Quote:
We went through a redesigned the exhaust. The Z/28 actually has a true 3” exhaust, so it reduced the backpressure to allow the big naturally aspirated engine to breath well, and it’s got nicely done exhaust manifolds, and larger monolithic cats. Then we went to a really nice, big induction system with an open element air filter by K&N. This marks our first OE application with that type of filter. So we tried to lower the restriction on both the induction and exhaust sides to optimize the power output of the LS7.
Very nice. I'm guessing they will rate the LS7 at 525 hp in the Z/28. The exhaust system and CAI will be highly sought after based on this info, but not nearly as sought after as these..

Quote:
I think one of the things that people are going to get pretty excited about are the new performance seats: I mean, they’re really comfortable. And the car, when you see it, has a very menacing presence to it. It’s very low and wide and has a unique stance when it’s coming down the road at you.
DrkPhx is offline   Reply With Quote
Old 04-04-2013, 01:42 PM   #18
tnspd

 
tnspd's Avatar
 
Drives: Camaro ZL1 (BERT)
Join Date: Jul 2009
Location: N.C.
Posts: 918
I like those seats. I recently had my ZL1 out on a road coarse in Savannah. Taking right hand turns was ok because I had the dead pedal to push against but taking left hand truns at high speed, I was sliding in the seat. These recaro seats would have been nice.
tnspd is offline   Reply With Quote
Old 09-15-2013, 10:22 PM   #19
brt3
Runs with scissors...
 
brt3's Avatar
 
Drives: '14 Z/28s SIM/SW
Join Date: Jan 2013
Location: Austin, TX
Posts: 1,027
Hope this PDF version helps people. I made this shortly after the original interviews, and thought I'd post it below:
Attached Images
File Type: pdf Z:28 Design Team.pdf (162.7 KB, 48 views)
__________________
brt3 is offline   Reply With Quote
Old 10-03-2013, 10:10 PM   #20
JusticePete
Rebel Leader
 
JusticePete's Avatar
 
Drives: Camaro Justice
Join Date: Jun 2007
Location: Texas
Posts: 15,277
This thread deserves a bump.
__________________
JusticePete is offline   Reply With Quote
Old 10-03-2013, 10:32 PM   #21
fradaj
 
Drives: RS
Join Date: Jan 2013
Location: Florida
Posts: 106
When will we see Z/28's on the road?
fradaj is offline   Reply With Quote
Old 10-04-2013, 12:50 AM   #22
snaphappy
 
snaphappy's Avatar
 
Drives: 2011 Camaro Convertible SS2/RS LS3
Join Date: Jun 2012
Location: Olive Branch, Ms
Posts: 724
I'm so curious to see if this will outperform the new vette on the track...would they allow that? It's gonna cost more right, so why not?
snaphappy is offline   Reply With Quote
Old 10-04-2013, 09:34 AM   #23
JusticePete
Rebel Leader
 
JusticePete's Avatar
 
Drives: Camaro Justice
Join Date: Jun 2007
Location: Texas
Posts: 15,277
Quote:
Originally Posted by fradaj View Post
When will we see Z/28's on the road?
Spring of 14

Quote:
Originally Posted by snaphappy View Post
I'm so curious to see if this will outperform the new vette on the track...would they allow that? It's gonna cost more right, so why not?
The Pedders / Lingenfelter L/28 Camaro runs about 2.5 seconds behind a Raft Racing prepared C6 Z06 that walked away with the OUSCI two years and countless improvements ago with the same driver. We have more power in the L/28, but we also carry more weight than the new Z/28. The Z/28 has a huge aero advantage. The Z/28 should be running times close to the C6 Z06 and be faster than the new Vette.
__________________
JusticePete is offline   Reply With Quote
Old 10-07-2013, 04:40 PM   #24
Mr. Wyndham
I used to be Dragoneye...
 
Mr. Wyndham's Avatar
 
Drives: 2014 Camaro 1LE
Join Date: Jan 2007
Location: Buffalo, NY
Posts: 25,787
Send a message via AIM to Mr. Wyndham
Bump!
__________________
"Keep the faith." - - Read Before You Post.
SIGN UP for 2014 Camaro5 HPDE @ Gingerman Raceway!
Mr. Wyndham is offline   Reply With Quote
Old 10-07-2013, 04:41 PM   #25
camaro2lt
 
camaro2lt's Avatar
 
Drives: 2010 Camaro 2lt VR/RS CGM Rally's
Join Date: May 2009
Location: palmyra pa
Posts: 5,255
What a great day that was!
camaro2lt is offline   Reply With Quote
 
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 09:44 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.