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Old 05-12-2013, 09:15 PM   #15
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Interesting that they are making a "base radio system optional" and they're still working on weight.

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Originally Posted by 2cnd chance View Post
3,750 lbs. 450 rwhp. = 1/4 in 11.8
Was that something you heard from Al O, or were you doing some math with hypothetical hp numbers?

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Originally Posted by NASTY99Z28 View Post
I wonder if guys shopping for a base vette will cross shop with this car......
Yup....at least I will.
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Old 05-12-2013, 09:25 PM   #16
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cant wait too see what the other peformance parts are that they will be coming out with
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Old 05-12-2013, 09:44 PM   #17
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Quote:
Originally Posted by Ron66Vette&10SS View Post
Interesting that they are making a "base radio system optional" and they're still working on weight.



Was that something you heard from Al O, or were you doing some math with hypothetical hp numbers?



Yup....at least I will.
Playing with numbers.
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Old 05-13-2013, 08:00 AM   #18
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ZL1 coupe is 4120, 300 lbs. less is 3,820...heres the media link with good info on both the Z-28 and ZL1, official of course...
http://media.gm.com/content/media/us...-z28/2014.html
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Old 05-13-2013, 09:29 AM   #19
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The comments were based on a comparison to the SS. They lost more than 100 lbs and "we're not done yet".
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Old 05-13-2013, 11:41 AM   #20
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The factory weight for the SS is 3860 lbs so if they've reduced that by more than 100 lbs the weight of the Z/28 is definitely below 3760. And based on what AO said about them removing pounds, not ounces they're probably driving hard towards 3700 or lower.

I know they've spent time with Justice Pete on suspension tricks and issues he uncovered with his Pedderized Camaros. I also have this feeling they may have spent some time looking at my project thread which was all about weight reduction... and not just any weight but specifically unsprung weight. I'm down to 3688 and that's with a full tank of gas, A/C, full factory sound system and the stock interior completely intact including the heavy factory seats, so I KNOW there's still potential areas of improvement which I fully expect they're exploring.

They've said nothing about flywheel, clutch, driveshaft. Not only reducing weight but reducing inefficiency and resistance in the drivetrain lets more power make it to the rear wheels. A stock SS is rated at 426 hp but only about 370 makes it to the rear wheels. That's 56 hp being eaten up by the inefficiency of everything between the engine and the rear wheels. I gained 9 hp to the rear wheels just by switching from the inefficient factory 2-piece driveshaft to a 1-piece driveshaft. Weight and efficiency of the flywheel and clutch play a big part too. Better oils can play a part in reducing friction which eats away at power transfer. It's going to be interesting to see what they've done with drivetrain efficiency.

Al O's dialog is extremely encouraging because it shows they have approval from the top to DO IT RIGHT. They have one of the very best people in the industry, Mark Stielow in charge. And they also have the great advantage of the fact that they make the car to begin with so they can do all kinds of things that just wouldn't be practical or possible for us as individuals to do.

I have the feeling this car's performance is not only going to surprise people, but outright shock them at what it can do. The fact you'll be able to drive it off the showroom floor with this level of performance is almost ridiculous lol.
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Old 05-13-2013, 11:47 AM   #21
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hello $80,000 wooooooooo
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Old 05-13-2013, 11:56 AM   #22
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Extensive lightweighting saved 300 pounds over the Camaro ZL1
To optimize the track performance of the Camaro Z/28, the engineering team subjected it to an intensive lightweighting program, saving 100 pounds (45 kilograms) compared to the naturally aspirated Camaro SS and 300 pounds (136 kilograms) to the supercharged Camaro ZL1.

This makes no sense the way he said it. The ZL-1 is 300lbs heavier than an SS. Yet the Z/28 is supposed to be around 300lbs lighter than a ZL-1 AND 100lbs less than an SS. Shouldnt that be 400lbs less than a ZL-1? I mean Im no mathmatician, but as long as I've been knowing and been taught that 4100-400= 3700.
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Old 05-13-2013, 01:34 PM   #23
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Hahaha ^ that is pretty funny.
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Old 05-13-2013, 01:52 PM   #24
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Quote:
Originally Posted by Doc View Post
The factory weight for the SS is 3860 lbs ...
What weight is your SS at now Doc?

I am wondering if it costs less to shave the lbs off an SS with mods... or start with a Z28.

Since we don't know the cost of the Z28... probably a moot point.
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Old 05-13-2013, 02:00 PM   #25
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...I'm sure their 300/100 lb reductions were preliminary goals, minimums, guesstimates....They wouldn't have put it out there unless they knew they could meet or beat it...

The final number will be a lot lower and touted as an engineering accomplishment and added "wow-factor"....(as it should be)....
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Old 05-13-2013, 02:35 PM   #26
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Quote:
Originally Posted by Doc View Post
The factory weight for the SS is 3860 lbs so if they've reduced that by more than 100 lbs the weight of the Z/28 is definitely below 3760. And based on what AO said about them removing pounds, not ounces they're probably driving hard towards 3700 or lower.

I know they've spent time with Justice Pete on suspension tricks and issues he uncovered with his Pedderized Camaros. I also have this feeling they may have spent some time looking at my project thread which was all about weight reduction... and not just any weight but specifically unsprung weight. I'm down to 3688 and that's with a full tank of gas, A/C, full factory sound system and the stock interior completely intact including the heavy factory seats, so I KNOW there's still potential areas of improvement which I fully expect they're exploring.

They've said nothing about flywheel, clutch, driveshaft. Not only reducing weight but reducing inefficiency and resistance in the drivetrain lets more power make it to the rear wheels. A stock SS is rated at 426 hp but only about 370 makes it to the rear wheels. That's 56 hp being eaten up by the inefficiency of everything between the engine and the rear wheels. I gained 9 hp to the rear wheels just by switching from the inefficient factory 2-piece driveshaft to a 1-piece driveshaft. Weight and efficiency of the flywheel and clutch play a big part too. Better oils can play a part in reducing friction which eats away at power transfer. It's going to be interesting to see what they've done with drivetrain efficiency.

Al O's dialog is extremely encouraging because it shows they have approval from the top to DO IT RIGHT. They have one of the very best people in the industry, Mark Stielow in charge. And they also have the great advantage of the fact that they make the car to begin with so they can do all kinds of things that just wouldn't be practical or possible for us as individuals to do.

I have the feeling this car's performance is not only going to surprise people, but outright shock them at what it can do. The fact you'll be able to drive it off the showroom floor with this level of performance is almost ridiculous lol.
It's a track-car. It better shock us all not being a daily driven vehicle.
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Old 05-13-2013, 03:01 PM   #27
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Quote:
Originally Posted by Wizard1183 View Post
Extensive lightweighting saved 300 pounds over the Camaro ZL1
To optimize the track performance of the Camaro Z/28, the engineering team subjected it to an intensive lightweighting program, saving 100 pounds (45 kilograms) compared to the naturally aspirated Camaro SS and 300 pounds (136 kilograms) to the supercharged Camaro ZL1.

This makes no sense the way he said it. The ZL-1 is 300lbs heavier than an SS. Yet the Z/28 is supposed to be around 300lbs lighter than a ZL-1 AND 100lbs less than an SS. Shouldnt that be 400lbs less than a ZL-1? I mean Im no mathmatician, but as long as I've been knowing and been taught that 4100-400= 3700.
[QUOTE=90503;6538594[COLOR="Red"]]...I'm sure their 300/100 lb reductions were preliminary goals, minimums, guesstimates....They wouldn't have put it out there unless they knew they could meet or beat it...

The final number will be a lot lower and touted as an engineering accomplishment and added "wow-factor"....(as it should be)....[/
[/COLOR]QUOTE]

My feelings as well.
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Old 05-13-2013, 04:19 PM   #28
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[QUOTE=2cnd chance;6538874]
Quote:
Originally Posted by 90503;6538594[COLOR="Red"
]...I'm sure their 300/100 lb reductions were preliminary goals, minimums, guesstimates....They wouldn't have put it out there unless they knew they could meet or beat it...[/COLOR]

The final number will be a lot lower and touted as an engineering accomplishment and added "wow-factor"....(as it should be)....[/QUOTE]

My feelings as well.
If They go Lower than 3700, then I agree with those saying the car will be upwards of $100k if not more. Every 100lbs cut, add $5000 to the price tag.
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