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-   -   If the C7 is 10% lighter than the C6... (https://www.corvetteforum.com/forums/c7-general-discussion/3196971-if-the-c7-is-10-lighter-than-the-c6.html)

jschindler 01-10-2013 05:44 PM


Originally Posted by Achmed (Post 1582787671)
and 4-5% more powerful, do you think it will have similar 0-60, 1/4 mile and top speed as the C6 Z06? I'm thinking yes.

ET might come close, trap speed will favor the car with more power. I had a Z06, don't anymore. But I don't know why I'd be pissed as someone mentioned. Maybe he thinks that the owners of Blue Flame sixes still haven't gotten over V8's being put in Corvettes.

jschindler 01-10-2013 05:46 PM


Originally Posted by Jawnathin (Post 1582788118)
No. Some people here swear it did, but it did not. Similar horsepower does not mean equal performance. Not even with the Z51 package. The LS3 helped narrow the gap though.

The C6 Grand Sport is probably the closest non-Z C6 competitor for the C5 Z06. Their performance numbers are about equal. The C5 Z is very impressive for a 10 year old car.

I was one of the first C6 owners. I had two close friends with C5 Z06's - both with headers, cold air and a tune. They pulled me slightly and that is with the mods. I promise you that bone stock the cars were virtually even. It would be a pissing match to call one faster than the other.

Z06Norway 01-10-2013 05:47 PM


Originally Posted by 458it (Post 1582788659)
Yeah, the c7 is going 2 be faster. Especially , on the straight.It's not only about the weight, its about the new transmission, new traction system and the things like that...
So, yeah, feel sorry for the guys that are planning 2 keep their c6s...

i dont, C6Z is still a fantastic car, evolution (hopefully) will always bring us foreward :thumbs:

Rune

Racer 01-10-2013 05:49 PM


Originally Posted by jschindler (Post 1582788729)
ET might come close, trap speed will favor the car with more power. I had a Z06, don't anymore. But I don't know why I'd be pissed as someone mentioned. Maybe he thinks that the owners of Blue Flame sixes still haven't gotten over V8's being put in Corvettes.

You can bet your ass, C6 Z06 owners will be pissed. :yesnod: BUT, I don't think they have anything to worry about. Now the 427 convertible, that is another story, it better not be to cocky when a C7 Coupe pulls up beside it.

Flex182 01-10-2013 06:00 PM

it will definitely be lighter than a base C6 but some of you guys that are thinking lighter than a C6 Z06 are crazy, and if it is, it better be a crap load lighter to out perform it on a track, given the HP/ tq numbers we know. I just don't see it, but hey anything can happen this day and age. I will say the C7 will probably be a better driving car than the C6 Z06 but just not a better performer. Could be really close, It will be interesting when the Nurburgring lap times are done . That will be the true test in my book.

Z06-1 01-10-2013 06:07 PM


Originally Posted by Racer (Post 1582788777)
You can bet your ass, C6 Z06 owners will be pissed. :yesnod: BUT, I don't think they have anything to worry about. Now the 427 convertible, that is another story, it better not be to cocky when a C7 Coupe pulls up beside it.

I have a z06 and not planning on getting a c7 right away , why would I be pissed ? I'm sure the c7 will be spectacular and all but unless they come out with a c7 zo6 I'm sure on the track I can hang with a base c7 if not whip it's azz (depending on the driver) or the quarter mile . That's my opinion

99SoCalFRC 01-10-2013 06:07 PM


Originally Posted by jimmyb (Post 1582788477)
Actually, there's not much difference in weight. These numbers are straight from Chevrolet's website:
2013 Corvette Coupe 1LT weighs 3,225 pounds
2013 Corvette Z06 1LZ weights 3,175 pounds

So, assuming Car and Driver is correct on the C7 specs (all Carbon Fiber body panels, Aluminum frame, Carbon Fiber floorboards), it is very possible the base C7 will be a good deal lighter than a Z06.

Jimmy

Sure it could be lighter, but if the C7 has 470 HP it's going to need to be 350 pounds lighter. If it's 450HP it's going to need a 550 pound weight advantage.

I think some members are seeing the world thru the C7 rose colored glasses. The C6Z is a devastatingly fast car and already pretty short on weight. It's got more displacement and easily more power than the C7 will.

I fall in to the "reasonable" crowd who think the C7 will fall between the C6 and C6Z performance wise.

bob53 01-10-2013 06:08 PM

Some of you people assume that the entire self-worth of every corvette owner is somehow, ridiculously, intertwined with not being outdone/outrun/outclassed. Some of us are beyond the physical and mental age of 18... I EXPECT the C7 in some form to trump the C6 Z06 and ZR1 (and I own a C6Z). If the base C7 can keep up with a C6 Z06, great! That demonstrates progress and will ensure the corvette remains an incredible bargain for the performance.

As for weight - I suspect the new vette will be very close to 3000 lbs because it will be slightly smaller. Take a look at the unlocked video as of today. The new frame has slightly different proportions when you look at the front, midsection, and rear. The rear part of the frame where the hydroformed rails are again narrower appears to be shorter in length. I suspect this may indicate a slightly smaller car.

Dominic Sorresso 01-10-2013 06:10 PM


Originally Posted by RJ-92 (Post 1582787755)
No way its 10% lighter. That's 300 lbs which would bring you in around 2800. If its more than 100lbs lighter, i'd be surprised. 5% lighter would be awesome.

When the C5Z came out, Chevrolet was careful not to exceed the hp of the
C4 ZR-1. That's their modus operandi. Then they slowly pull away.
C7 base may very well be same hp/lb ratio a C6 Z. But the lighter car will always run better simply due to lower MASS.
I have been communicating w a power train guy on a different forum. He does WOT tuning for the Corvette and says "hang on to your hats".
Hype? He sounds pretty enthusiastic.

Bad_AX 01-10-2013 06:12 PM


Originally Posted by Achmed (Post 1582787671)
and 4-5% more powerful, do you think it will have similar 0-60, 1/4 mile and top speed as the C6 Z06? I'm thinking yes.

Without doubt, the C7 Corvette is going to be a great car and better in most every way than the C6. Will it outperform the C6 Z06? I would be very surprised if the base C7 will outperform the outgoing Z06, except maybe for fuel economy.

Will the new Base C7 outperform the Ferrari 458 Italia? Fat chance, but the Z06 will and then some. Will the Base C7 outperform the new Viper? Not likely, but the old dinosaur ZR1 will, and Z06 with Z07 options would most likely hang with it.

Just sayin.

Bad_AX 01-10-2013 06:14 PM


Originally Posted by Jawnathin (Post 1582788118)
No. Some people here swear it did, but it did not. Similar horsepower does not mean equal performance. Not even with the Z51 package. The LS3 helped narrow the gap though.

The C6 Grand Sport is probably the closest non-Z C6 competitor for the C5 Z06. Their performance numbers are about equal. The C5 Z is very impressive for a 10 year old car.

:iagree:

Bad_AX 01-10-2013 06:20 PM


Originally Posted by 458it (Post 1582788659)
Yeah, the c7 is going 2 be faster. Especially , on the straight.It's not only about the weight, its about the new transmission, new traction system and the things like that...
So, yeah, feel sorry for the guys that are planning 2 keep their c6s...

The Ferrari 458 Italia has a Newer Transmission (7-speed twin clutch paddle shift), and more horse power, but for some reason it's still slower than a Z06. Oh, and it gets much worse fuel economy.

1985 Corvette 01-10-2013 06:30 PM

Why would C6Z guys be ticked? Eight model years of a great run plus mopping the floor with almost everything since 2005. The first exotic fighter C4 ZR-1 met the same fate. The cycle continues. I don't believe the "no more 427s" quotes. Too much marketing potential and excitement to ignore it. GM has been saying "yes we can" to the masses saying, "no they can't" since the LT5.

I specifically remember Dave Hill saying that the 427 displacement was purely coincidence......uh huh.

Jawnathin 01-10-2013 06:36 PM

C6Z owner - Wouldn't be pissed at all. I expect the car to continue to evolve, that is progress and I welcome it. I have high hopes for the C7, one could be in my garage.

I'm sure there are more reasons, but off the top of my head...

1.) New cars don't change the performance of my car. Its the same and impressive as it ever was.
2.) I paid significantly less for my C6Z than it would have cost to get me into even a no-frills base C7 and won't be hit nearly as hard by depreciation.
3.) I've been able to drive a car long before the C7 announcement, let alone availability.
4.) The LS7/7.0L/427 is pretty special and while its unclear if it'll come back again, if it does, it certainly won't be in a base C7.

DREAMERAK 01-10-2013 06:47 PM


Originally Posted by jimmyb (Post 1582788477)
Actually, there's not much difference in weight. These numbers are straight from Chevrolet's website:
2013 Corvette Coupe 1LT weighs 3,225 pounds
2013 Corvette Z06 1LZ weights 3,175 pounds

So, assuming Car and Driver is correct on the C7 specs (all Carbon Fiber body panels, Aluminum frame, Carbon Fiber floorboards), it is very possible the base C7 will be a good deal lighter than a Z06.

Jimmy

GM says C6 3208 here:http://www.chevrolet.com/corvette-sp...imensions.html

99SoCalFRC 01-10-2013 06:53 PM

FWIW to get to the same power to weight as a C6Z, a 3,000 pound C7 needs 481 HP, a 2,800 can do it with about 455.

This of course totally leaves out the fact that the C7 will not have any rear tires close to what the C6Z has.

DREAMERAK 01-10-2013 06:55 PM


Originally Posted by 99SoCalFRC (Post 1582788938)
Sure it could be lighter, but if the C7 has 470 HP it's going to need to be 350 pounds lighter. If it's 450HP it's going to need a 550 pound weight advantage.

I think some members are seeing the world thru the C7 rose colored glasses. The C6Z is a devastatingly fast car and already pretty short on weight. It's got more displacement and easily more power than the C7 will.

I fall in to the "reasonable" crowd who think the C7 will fall between the C6 and C6Z performance wise.

If the C7 is 10% lighter, as some in the media are saying, its going to be very close.

Dominic Sorresso 01-10-2013 06:59 PM

Don't forget rotational mass. Even at similar weights, where is the CG?

Achmed 01-10-2013 07:04 PM

Lots of C6Z owners will not be pissed, but then there are some that will be, the same types who argue profusely on the "C7 faster with E85" thread or the ones who post in anger that the GS was made with similar body to the Z06 but for less cost.

DREAMERAK 01-10-2013 07:05 PM


Originally Posted by 99SoCalFRC (Post 1582789362)
FWIW to get to the same power to weight as a C6Z, a 3,000 pound C7 needs 481 HP, a 2,800 can do it with about 455.

This of course totally leaves out the fact that the C7 will not have any rear tires close to what the C6Z has.

10% reduction is -320lbs, C7 2900 lbs at 465hp = 6.23 that beats a 2013 Z06 3175 lbs at 505hp for 6.28 lbs per hp.


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