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Old 08-18-2014, 12:14 PM   #15
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Originally Posted by Z51Stingray View Post
At 650 hp, 3500 lbs won't matter much.
The power to weight may not be an issue but the weight makes all the other components have to work that much harder. Brakes, tires, suspension, steering and the engine all have to be that much bigger, stronger and heavier because of the horsepower and car weight.

C7 Z06 hp to weight 5.42
C6 ZR1 hp to weight 5.26
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Old 08-18-2014, 12:17 PM   #16
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Originally Posted by DGthe3 View Post
Unless GM has been very conservative with the LT4's power estimate (which is entirely possible), the Z06 will have a slightly worse power to weight ratio than the C6 ZR1. That probably shouldn't be happening, especially if there is no C7 ZR1 in the works (although I hope there is). I fully understand that there is a lot more to the car than power to weight ratio and that someone looking at it strictly from that perspective is missing the point.

I see what GM did with the Z/28 (and with the previous Z06) and thats the kind of thing that I want to see out of the 'track star'. Throwing more power and more stuff and more weight gets away from that type of car. Thats also why there's room for the ZR1s and ZL1s in their respective lineups.

Speaking of the Z/28 ... to give you a feel for just how heavy the Z06 is, its going to be closer in weight to the 5th gen Camaro Z/28 than it will be to the 2005 Z06. It almost spits the difference perfectly, but never-the-less: its closer in weight to the Camaro than its predecessor. That just feels wrong.

I don't see how they can be conservative with the horsepower rating if it is SAE rated.

I agree with the rest of your post. This car shouldn't have gotten the Z06 badge. It should have been the ZR1.
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Old 08-18-2014, 06:53 PM   #17
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Originally Posted by DGthe3 View Post
And some people were complaining that the C6 ZR1 was too heavy at ~3350.


I knew it was going to be heavy as soon as I heard that it was getting a supercharged engine, but 3500+ lbs? Wow. I was thinking somewhere in the 3450 range.
That was just the Vette haters and uninformed complaining about the C6 ZR1 weight at the time. It was lighter than its competition:
2010 Dodge Viper-3,460 lbs
911 Turbo S-3,494 lbs
Lamborghini Murcielago LP640-3,671 lbs (SV-3,450 lbs)
Ferrari 599 GTB-3,721 lbs


Quote:
The 2014 C7 coupe without the Z51 package has an estimated curb weight of 3,298 pounds (1,496 kg) – or 90 pounds (41 kg) heavier than the 2013 C6 coupe’s 3,208-pound (1,455 kg) curb weight.

Here are the detailed mass reductions and additions to the C7.

Areas Of Mass Reduction

Frame: 99 pounds lighter
Body panels: 37 pounds lighter
Hatch: several pounds lighter
Control arms: now hollow, several pounds

Total weight savings is in the vicinity of 150 pounds, or 68 kg.

Areas of Mass Addition
35.2 pounds — direct injection, VVT, AFM
6.6 pounds — standard engine oil cooler
13.2 pounds — dual mass clutch
15.4 pounds — steel torque tube part of AFM
5.5 pounds — AFM exhaust valves
11 pounds — 7th transmission speed
18.5 pounds — strengthened differential, half shafts
18.3 pounds — larger fixed brakes
17 pounds — new interior appointments and safety features
17.2 pounds — upgraded seats
18.5 pounds — structural safety requirements
31.5 pounds — new infotainment and cabin technology, as well as relocating battery to the rear
3 pounds — bigger fuel tank

That’s a total weight gain of 210 pounds, or 95 kg.

Opting for the Z51 performance package would add transmission and differential coolers, a rear sway bar, larger wheels, electronic differential, and a spoiler. Although unconfirmed, these changes will most likely result in the addition of 150+ pounds
I knew it was going to be heavier than that. The Z51 Stingray weighs 3,444 lbs.

These all were weight gainers over the base:
-eLSD
-Dry sump oil pump,
-larger wheels. 19x8.5 front/20x10 rear over the base 18x8.5 front/19x10 rear
-Magnetic Ride Control
-larger brakes over stock
-Transmission and Differential heat exchangers. Brake duct cooling

The fact that it only gained 80 lbs over the Z51 is impressive!
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Old 08-18-2014, 08:13 PM   #18
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And no one said the Z06 is as good as it gets. Don't recall anyone ever saying that. This car is more in line with the ZL1 for features and refinement and even has a convertible. Guessing if GM wants they could take it up another notch.
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Old 08-20-2014, 08:13 AM   #19
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C7 Z06 weight released

From the order guide

Curb weight coupe 3524

Convertible 3582.

Source

http://m.corvetteforum.com/c7-z06-di...-download.html

I am impressed the ragtop is only 60 pounds heavier than the coupe
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Old 08-20-2014, 08:26 AM   #20
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Every year they get heavier damm
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Old 08-20-2014, 08:53 AM   #21
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Old 08-20-2014, 11:57 AM   #22
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I'm sure there are lots of good reasons for the additional weight, but I find this disappointing. I know it will be faster than the last one but it seems like they could have done more to hold the weight down.
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Old 08-20-2014, 12:14 PM   #23
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the Z06 will produce a rip-snortin’ 650 horsepower and 650 lb-ft of torque, yielding an output-to-weight ratio very close to that of the ZR1, which pumped out 638 horses and 604 lb-ft. So you don’t have to do the math, that’s 5.42 lb/hp for the 2015 Z06 versus 5.26 for the ZR1, and 5.42 lb/lb-ft of torque for the new Z06 coupe versus 5.55 lb/lb-ft for the ZR1.
Heavier weight seems to be the new reality along with the stat p2w. On paper, the 15 Z06 is very close to the old ZR1.

Now that the Z06 has automatic, convertible, etc. the original track oriented model is gone. What roll is there for a C7 ZR1 other than more power? Not that, that is a bad thing.

http://blog.caranddriver.com/heavy-hitter-2015-chevrolet-corvette-z06-curb-weight-leaked/
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Old 08-20-2014, 12:25 PM   #24
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Originally Posted by hotlapZL1 View Post
Heavier weight seems to be the new reality along with the stat p2w. On paper, the 15 Z06 is very close to the old ZR1.

Now that the Z06 has automatic, convertible, etc. the original track oriented model is gone. What roll is there for a C7 ZR1 other than more power? Not that, that is a bad thing.

http://blog.caranddriver.com/heavy-hitter-2015-chevrolet-corvette-z06-curb-weight-leaked/
I agree. This never should have been the Z06. It's nothing like a Z06.
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Old 08-20-2014, 07:15 PM   #25
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Maybe it will ride better

I'm more amazed by the difference between the coupe and the convertible. Wow!
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Old 08-20-2014, 08:32 PM   #26
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Quote:
Originally Posted by Bhobbs View Post
I don't see how they can be conservative with the horsepower rating if it is SAE rated.

I agree with the rest of your post. This car shouldn't have gotten the Z06 badge. It should have been the ZR1.
I was somehow under the impression that 650 was the 'initial estimate' from the Detroit autoshow in January, but I just checked and I guess those are the final SAE certified numbers. 625 was the first estimate.
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Old 08-23-2014, 12:41 AM   #27
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Comparing the power to weight ratio of the C7 Z06 to the C6 ZR1 obviously where it gets its performance improvements is coming from other areas besides just power to weight ratios. This car is going to carry much more speed through the corners and pick up a ton of time, also with the fast shifting 8 speed auto it will pick up time there.

Though this isn't the more hard core track car that the Z06 started back up again in 2001, it is pretty far from that car at this point in time.
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Old 08-24-2014, 11:50 AM   #28
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Why complain? Much better performance, many more features, much better quality and close to the same price.

GM has to build what sells well.
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