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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 10-18-2013, 10:23 AM   #1
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Curb Weight of Z/28

I sort of recall the discussions about the Z/28's weight reduction as possibly coming in less than what was possibly claimed. Then I noticed in the press releases the weight is "300 lbs" less than the ZL-1...that's fine..

But I thought perhaps we might have been given a surprise that the weight came in considerably less than expected....guess not...

Am I missing something here? Was the weight reduction not as much as we hoped? Anybody else hoped it would have been closer to 3700 or even 3600 lbs? Maybe it's a non-issue at this juncture....I just sort of recall a lot of speculation that we may have been pleasantly surprised by a lower figure...

....Just curious if anybody else has any thoughts or opinions....Was all that effort really worth it for what the final figure came in at?...
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Old 10-18-2013, 10:28 AM   #2
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Seeing that the ZL1 has an extra 250 lbs in the rear end and the Z/28 does not have that rear end I think a better comparison would be against the SS. So I guess I agree with you that weight reduction is not as impressive as I would have liked.
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Old 10-18-2013, 10:50 AM   #3
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Old 10-18-2013, 11:21 AM   #4
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With the weight reduction they did, I don't understand how it weighs as much as the SS. I was under the impression it was down around 3,760 lbs.
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Old 10-18-2013, 12:13 PM   #5
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Yeah, it's kind of a wash... they eliminated the extra weight of the ZL1 back to SS weight.

I guess the extra coolers and fluids balance out the A/C, Speakers, Wheels, and rear window savings
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Old 10-18-2013, 12:56 PM   #6
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With the weight reduction they did, I don't understand how it weighs as much as the SS. I was under the impression it was down around 3,760 lbs.
Yes I agree. I was surprised it was over 3,800.

If you start with a 1LE and add/subtract the items they did I thought we were looking at 3,750(?).
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Old 10-18-2013, 01:01 PM   #7
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Yes I agree. I was surprised it was over 3,800.

If you start with a 1LE and add/subtract the items they did I thought we were looking at 3,750(?).
Exactly. I don't see where the extra weight comes from other than maybe the diff cooler and dry sump tank.
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Old 10-18-2013, 01:11 PM   #8
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I think they did a damn good job keeping it approximately the same weight as an SS.

Seriously guys, compare the two. THe Z/28 has extra coolers everywhere, larger wheels, larger tires, 427 engine with beefier suspension parts, beefier drive train, splitters and downforce parts everywhere. With everything that has been added there is absolutely no increase in weight is pretty damn impressive. I wouldn't be surprised if there are braces in places the SS doesn't have to stiffen the chassis.

From a marketing prespective, why would they say "SAY WEIGHT AS SS BUT WITH A WHOLE BUNCH MORE STUFF!!!!" That sounds ridiculous. Obviously for the news releases they wanted to make it appeal to those that don't understand what it takes to make a track car a real track car.

IMHO, they did an awesome job and i'm sure if you want to shed some more weight there are plenty of places to do it but for this thing to sell, it needs to have somewhat of an interior.
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Old 10-18-2013, 01:22 PM   #9
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They did do a great even "over the top" job on the Z/28!

Haven't heard about extra bracing. I don't think it's needed with the 5Gen chassis. But as you mentioned the wheels and tires...weigh "not" more, but significantly less. The brakes are much less, the interior, trunk less. Rear glass less. The engine is based on the same SB as the LS3. Hence our surprise.
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Old 10-18-2013, 01:34 PM   #10
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I think they did a damn good job keeping it approximately the same weight as an SS.

Seriously guys, compare the two. THe Z/28 has extra coolers everywhere, larger wheels, larger tires, 427 engine with beefier suspension parts, beefier drive train, splitters and downforce parts everywhere. With everything that has been added there is absolutely no increase in weight is pretty damn impressive. I wouldn't be surprised if there are braces in places the SS doesn't have to stiffen the chassis.

From a marketing prespective, why would they say "SAY WEIGHT AS SS BUT WITH A WHOLE BUNCH MORE STUFF!!!!" That sounds ridiculous. Obviously for the news releases they wanted to make it appeal to those that don't understand what it takes to make a track car a real track car.

IMHO, they did an awesome job and i'm sure if you want to shed some more weight there are plenty of places to do it but for this thing to sell, it needs to have somewhat of an interior.
I know there are things I'm unaware of but the ZL1 has the beefier drivetrain not the Z/28. Sway bars are probably bigger on the Z/28 but suspension shouldn't be any heavier as we have seen underneath in the video. But I will say you are right. I have no idea and do not understand what it takes to make a real track car as this definitely is.
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Old 10-18-2013, 01:35 PM   #11
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Not saying the weight reduction they did wasn't a great achievement at all. But the mantra was they were putting the car on a diet, as they should for a track car....and 300 lbs less than the ZL-1 was the goal....perhaps the "minimum" goal....

I was just surprised a little that that's where it still ended up, given that it was still a work in progress and with orders from the top for a major undertaking to reduce weight. Not criticizing, just wondering why it couldn't have been less.
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Old 10-18-2013, 01:41 PM   #12
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Exactly. I don't see where the extra weight comes from other than maybe the diff cooler and dry sump tank.
an extra 39lbs from the LS7
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Old 10-18-2013, 03:21 PM   #13
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Just for the heck of it, I wonder if there's any way to figure how much weight was removed (theoretically what a lighter-weight SS "could" weigh...??)....Then how much was "added back" from various components for the Z/28 that were heavier, if any....

I think a lot of the curiosity is really what is the lightest these Gen5 Camaros could weigh.....(without getting into the absurd, of course).....The overall weight of these cars has always been sort of a negative for one reason or another...

Just thinking if this weight removal engineering is viable, perhaps it could translate into a lighter-weight 1LE or SS track model...
or even as an "option" for the 6th Gens, if too late for the rest of the 5ths...

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Old 10-18-2013, 03:56 PM   #14
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Originally Posted by 90503 View Post
Just for the heck of it, I wonder if there's any way to figure how much weight was removed (theoretically what a lighter-weight SS "could" weigh...??)....Then how much was "added back" from various components for the Z/28 that were heavier, if any....

I think a lot of the curiosity is really what is the lightest these Gen5 Camaros could weigh.....(without getting into the absurd, of course).....The overall weight of these cars has always been sort of a negative for one reason or another...

Just thinking if this weight removal engineering is viable, perhaps it could translate into a lighter-weight 1LE or SS track model...
or even as an "option" for the 6th Gens, if too late for the rest of the 5ths...
Here! come back with the result number!!
http://www.camaro5.com/forums/showthread.php?t=170965
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Old 10-18-2013, 04:03 PM   #15
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Here! come back with the result number!!
http://www.camaro5.com/forums/showthread.php?t=170965
Holy crap....lol....one guy was down to 3760 on an SS....I'm giving myself a headache....Think I'll just go with what the factory comes up with...lol..
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Old 10-19-2013, 07:59 PM   #16
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With all the "improvements" added over the last four Model Years, a 6-speed 1SS has swelled to over 3900 lb. An Automatic is now near-4000...
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Old 10-19-2013, 08:51 PM   #17
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...with the addition of the LS7 and associated plumbing I recall they mentioned a weight addition. There was nothing much of susbstance to be architecturally removed from the C5 other than what they did pull out of the car. They even lightened the rear window glass in an effort to save a few pounds. Would I have liked to see more weight removed, heck yeah! But, they were handcuffed at what was on the table that could have been taken off. Alot of thought I think went into this for a 300 pound reduction.
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Old 10-20-2013, 06:58 PM   #18
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With all the "improvements" added over the last four Model Years, a 6-speed 1SS has swelled to over 3900 lb. An Automatic is now near-4000...
My 1SS 1LE with NPP, BA Stereo and back up camera weighed in at 3823 with 3/4 tank of gas.
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Old 10-20-2013, 08:47 PM   #19
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Just for the heck of it, I wonder if there's any way to figure how much weight was removed (theoretically what a lighter-weight SS "could" weigh...??)....Then how much was "added back" from various components for the Z/28 that were heavier, if any....

I think a lot of the curiosity is really what is the lightest these Gen5 Camaros could weigh.....(without getting into the absurd, of course).....The overall weight of these cars has always been sort of a negative for one reason or another...

Just thinking if this weight removal engineering is viable, perhaps it could translate into a lighter-weight 1LE or SS track model...
or even as an "option" for the 6th Gens, if too late for the rest of the 5ths...
In discussions a year or more ago about weight possibilities for the 6th gen Camaro, we talked about the overall weight reduction on them based on what GM engineering was doing from the ground up on the new Cadillac ATS. They focused on weight reduction everywhere looking at grams and ounces instead of pounds, a program that would not be cost effective for a platform that was soon going out of production like the Zeta is (though I think there will still be some limited Zeta use for the police cars?). Every model built on the new Alpha chassis will benefit from what was done for the ATS, so the 6th gen. Alpha Camaros will be much lighter than the 5th gens.
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Old 10-21-2013, 01:24 PM   #20
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Originally Posted by Mikamaro View Post
IT tips the scales at 3,837 pounds
Quote:
Originally Posted by LOWDOWN View Post
With all the "improvements" added over the last four Model Years, a 6-speed 1SS has swelled to over 3900 lb. An Automatic is now near-4000...
Quote:
Originally Posted by Bhobbs View Post
With the weight reduction they did, I don't understand how it weighs as much as the SS. I was under the impression it was down around 3,760 lbs.
Quote:
Originally Posted by 2cnd chance View Post
Yes I agree. I was surprised it was over 3,800.

If you start with a 1LE and add/subtract the items they did I thought we were looking at 3,750(?).
Quote:
Originally Posted by Dropspeed View Post
My 1SS 1LE with NPP, BA Stereo and back up camera weighed in at 3823 with 3/4 tank of gas.
Just FYI....From the 2014 brochure in the other tread...

1SS manual coupe..........3,908
SS with 1LE package...... 3,875
ZL1 manual coupe..........4,120
Z/28 (300lbs<ZL1)..........3,820....or 3,837 (283lbs less)
...no chart for Z/28 curb weight....just 300lb less statement...
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Old 10-21-2013, 01:41 PM   #21
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In discussions a year or more ago about weight possibilities for the 6th gen Camaro, we talked about the overall weight reduction on them based on what GM engineering was doing from the ground up on the new Cadillac ATS. They focused on weight reduction everywhere looking at grams and ounces instead of pounds, a program that would not be cost effective for a platform that was soon going out of production like the Zeta is (though I think there will still be some limited Zeta use for the police cars?). Every model built on the new Alpha chassis will benefit from what was done for the ATS, so the 6th gen. Alpha Camaros will be much lighter than the 5th gens.
Clyde
For sure I recall the new platform and all that as being a tremendous weight reduction plan in and of itself for the 6th Gens...

I think what I was trying to ask, is if the weight removal we see from the Z/28 couldn't be an additional option for even the 6th Gens on models other than a Z/28...above and beyond what they have planned for the 6th Gens....
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Old 10-21-2013, 07:31 PM   #22
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Originally Posted by Dropspeed View Post
My 1SS 1LE with NPP, BA Stereo and back up camera weighed in at 3823 with 3/4 tank of gas.
Quote:
Originally Posted by 90503 View Post
Just FYI....From the 2014 brochure in the other tread...

1SS manual coupe..........3,908
SS with 1LE package...... 3,875
ZL1 manual coupe..........4,120
Z/28 (300lbs<ZL1)..........3,820....or 3,837 (283lbs less)
...no chart for Z/28 curb weight....just 300lb less statement...
My 1LE is sort-of a stripper. Very similar options to Dropspeed's car. 1SS, 1LE, NPP, BA audio. It said 3801 on the registration. Not sure how accurate it is.
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Old 10-21-2013, 07:47 PM   #23
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For sure I recall the new platform and all that as being a tremendous weight reduction plan in and of itself for the 6th Gens...

I think what I was trying to ask, is if the weight removal we see from the Z/28 couldn't be an additional option for even the 6th Gens on models other than a Z/28...above and beyond what they have planned for the 6th Gens....
I don't think there will be a whole lot of areas for further weight reduction on the 6th gen. Camaros. With their new weight reduction engineering and mindset they are already looking at things like lighter material for interior door panels to give you an idea of where they are going. They are looking at every area to save an ounce or two here, an ounce or two there and overall the numerous small weight reductions will add up to a significant weight reduction.
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Old 10-21-2013, 08:05 PM   #24
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My 1LE is sort-of a stripper. Very similar options to Dropspeed's car. 1SS, 1LE, NPP, BA audio. It said 3801 on the registration. Not sure how accurate it is.
I know, the weight thing seems it can vary...curb weight, dry weight, gross weight...whatever...lol....
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Old 10-21-2013, 08:11 PM   #25
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http://www.camaro5.com/forums/showth...=194285&page=3

This is one of the threads from 18 months ago or so where we discussed the 6th gen Camaro weight. I'll quote one of my posts but there is much more info in that thread.

"Given that the original numbers were taken from somewhere other than a GM press release, I went and located the official GM press release to verify some numbers.
"All three engines support the ATS’s agile and lightweight driving dynamics. With an estimated curb weight of less than 3,400 pounds (1,542 kg), it offers a more favorable power-to-weight ratio than key competitors. With the 3.6L V-6, for example, there is 1 horsepower for every 10.8 pounds of vehicle weight. That’s better than a 2012 Mercedes-Benz C350’s 11.9:1 ratio or the 2012 Audi A4 sedan’s 16.6:1 ratio."

Now if you plug in their 320 est. HP to their 10.8 lb per HP, you come up with 3,456 lb for the DOHC V6 ATS. Now plug in my numbers from earlier where there was 70 lb difference between V6 manual and SS manual (and they are currently talking about the DOHC V6 in the ATS with auto only, no manual which would make an even better number for us), then you arrive at 3,516 lb for a V8 version. And if that translated exactly to a 6th gen Camaro, we are still at 333 lb less than the current SS manual. Go read some of the press release about their weight reduction strategy, every part of the car was looked at for weight reduction, they concentrated on reducing weight by grams not pounds throughout the car, the made use of high strength steel and ultra high strength steel to allow parts to be thinner/lighter yet as strong or stronger. Almost all of this should move over to the 6th gen Camaro, I think the naysayers will see a difference if they look carefully at what GM has done with the ATS. These weight saving steps are a mere glimpse of GM's future production techniques.
Clyde"
quote ws originally posted on 1/9/2012

Given the weight saving engineering already done, I don't think there is going to be a wholle lot of areas left for significant weight reduction.
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