C7 weight math
Drifting
Joined: Oct 2006
Posts: 1,372
Likes: 311
From: Bristol, VT
He started with coupe weight, so he did subtract 99 from the steel frame weight.
Thread Starter
Le Mans Master
Joined: Aug 2009
Posts: 5,504
Likes: 2
From: Sacramento California
Since there is a 45 day limit on threads staying open, let us hope the thread will be still open by then.
Le Mans Master
Joined: Jul 2009
Posts: 9,526
Likes: 12
From: Los Angeles California
Magnesium suspension parts too. Don't have a clue how much that reduced weight, but what's important about that is the weight that was reduced came off the outside corners of the car.
I predict that the base C7 coupe is going to come it around 3190.
I predict that the base C7 coupe is going to come it around 3190.
Race Director
Joined: May 2003
Posts: 10,749
Likes: 41
Melting Slicks
Joined: Jul 2011
Posts: 2,055
Likes: 864
From: So Cal
Coupe 3344 pounds.
Chevy so far only says the C7 will have a better power to weight ratio than the 911 Carrera or the Audi R8.
From AutoBlog:
"99 pound frame weight reduction. Those weight savings are important, because in order to meet ever-stricter crash regulations, develop a much richer interior and add performance, some weight had to be added back in the form of new equipment. Counterintuitively, Chevy tells Autoblog that if its engineers didn't have to care about fuel economy, the C7 would actually be lighter.
The new small block incorporates features like direct injection, variable-valve timing and cylinder deactivation ("Active Fuel Management") trickery, all of which adds weight. The new engine management hardware alone adds 35 pounds, plus there's a further 5.5 pounds for the AFM exhaust valves (so the engine doesn't sound objectionable when operating in V4 mode), another 15 or so pounds for the steel torque tube to help improve drivability with AFM, etc.), and so on. Surprisingly good fuel consumption figures have become something of a hallmark in recent generations, and it was a top priority to preserve that leadership in the new generation.
So the new C7 figures to weigh more-or-less the same as the C6, but engineers says they've taken pains to locate the weight in the right places to ensure 50/50 weight distribution. That means splurging on things like the carbon roof and hood panels to assure a lower center of gravity, but also means using lighter sheet-molded compound for the fenders, doors and rear quarters, not to mention advanced carbon-nano composite underbody panels. Together, those changes account for a weight loss of around 37 pounds."
Chevy so far only says the C7 will have a better power to weight ratio than the 911 Carrera or the Audi R8.
From AutoBlog:
"99 pound frame weight reduction. Those weight savings are important, because in order to meet ever-stricter crash regulations, develop a much richer interior and add performance, some weight had to be added back in the form of new equipment. Counterintuitively, Chevy tells Autoblog that if its engineers didn't have to care about fuel economy, the C7 would actually be lighter.
The new small block incorporates features like direct injection, variable-valve timing and cylinder deactivation ("Active Fuel Management") trickery, all of which adds weight. The new engine management hardware alone adds 35 pounds, plus there's a further 5.5 pounds for the AFM exhaust valves (so the engine doesn't sound objectionable when operating in V4 mode), another 15 or so pounds for the steel torque tube to help improve drivability with AFM, etc.), and so on. Surprisingly good fuel consumption figures have become something of a hallmark in recent generations, and it was a top priority to preserve that leadership in the new generation.
So the new C7 figures to weigh more-or-less the same as the C6, but engineers says they've taken pains to locate the weight in the right places to ensure 50/50 weight distribution. That means splurging on things like the carbon roof and hood panels to assure a lower center of gravity, but also means using lighter sheet-molded compound for the fenders, doors and rear quarters, not to mention advanced carbon-nano composite underbody panels. Together, those changes account for a weight loss of around 37 pounds."
Last edited by B747VET; Apr 11, 2013 at 10:26 AM.
Drifting
Joined: Dec 2009
Posts: 1,404
Likes: 7
From: Malverne New York
Coupe 3344 pounds.
Chevy so far only says the C7 will have a better power to weight ratio than the 911 Carrera or the Audi R8.
From AutoBlog:
"99 pound frame weight reduction. Those weight savings are important, because in order to meet ever-stricter crash regulations, develop a much richer interior and add performance, some weight had to be added back in the form of new equipment. Counterintuitively, Chevy tells Autoblog that if its engineers didn't have to care about fuel economy, the C7 would actually be lighter.
The new small block incorporates features like direct injection, variable-valve timing and cylinder deactivation ("Active Fuel Management") trickery, all of which adds weight. The new engine management hardware alone adds 35 pounds, plus there's a further 5.5 pounds for the AFM exhaust valves (so the engine doesn't sound objectionable when operating in V4 mode), another 15 or so pounds for the steel torque tube to help improve drivability with AFM, etc.), and so on. Surprisingly good fuel consumption figures have become something of a hallmark in recent generations, and it was a top priority to preserve that leadership in the new generation.
So the new C7 figures to weigh more-or-less the same as the C6, but engineers says they've taken pains to locate the weight in the right places to ensure 50/50 weight distribution. That means splurging on things like the carbon roof and hood panels to assure a lower center of gravity, but also means using lighter sheet-molded compound for the fenders, doors and rear quarters, not to mention advanced carbon-nano composite underbody panels. Together, those changes account for a weight loss of around 37 pounds."
Chevy so far only says the C7 will have a better power to weight ratio than the 911 Carrera or the Audi R8.
From AutoBlog:
"99 pound frame weight reduction. Those weight savings are important, because in order to meet ever-stricter crash regulations, develop a much richer interior and add performance, some weight had to be added back in the form of new equipment. Counterintuitively, Chevy tells Autoblog that if its engineers didn't have to care about fuel economy, the C7 would actually be lighter.
The new small block incorporates features like direct injection, variable-valve timing and cylinder deactivation ("Active Fuel Management") trickery, all of which adds weight. The new engine management hardware alone adds 35 pounds, plus there's a further 5.5 pounds for the AFM exhaust valves (so the engine doesn't sound objectionable when operating in V4 mode), another 15 or so pounds for the steel torque tube to help improve drivability with AFM, etc.), and so on. Surprisingly good fuel consumption figures have become something of a hallmark in recent generations, and it was a top priority to preserve that leadership in the new generation.
So the new C7 figures to weigh more-or-less the same as the C6, but engineers says they've taken pains to locate the weight in the right places to ensure 50/50 weight distribution. That means splurging on things like the carbon roof and hood panels to assure a lower center of gravity, but also means using lighter sheet-molded compound for the fenders, doors and rear quarters, not to mention advanced carbon-nano composite underbody panels. Together, those changes account for a weight loss of around 37 pounds."
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Melting Slicks
Joined: Jul 2011
Posts: 2,055
Likes: 864
From: So Cal
So lets see here, 99 pounds taken out of the frame. Add 35 pounds, plus 15, plus 5.5 and that comes out to 55.5 pounds. So 99-55.5 is 43.5 pounds. then add 37 to the 43.5 since all the lighter body panels save 37 pounds, and you got a weight savings of 80.5 pounds over the current C6. Then add some back for the upgraded interior. It'll be very close to the same weight as the current C6. It'll probably be 20-30 pounds lighter MAYBE. I'm guessing idk. This wait is horrible...
Thread Starter
Le Mans Master
Joined: Aug 2009
Posts: 5,504
Likes: 2
From: Sacramento California
Coupe 3344 pounds.
Chevy so far only says the C7 will have a better power to weight ratio than the 911 Carrera or the Audi R8.
From AutoBlog:
"99 pound frame weight reduction. Those weight savings are important, because in order to meet ever-stricter crash regulations, develop a much richer interior and add performance, some weight had to be added back in the form of new equipment. Counterintuitively, Chevy tells Autoblog that if its engineers didn't have to care about fuel economy, the C7 would actually be lighter.
The new small block incorporates features like direct injection, variable-valve timing and cylinder deactivation ("Active Fuel Management") trickery, all of which adds weight. The new engine management hardware alone adds 35 pounds, plus there's a further 5.5 pounds for the AFM exhaust valves (so the engine doesn't sound objectionable when operating in V4 mode), another 15 or so pounds for the steel torque tube to help improve drivability with AFM, etc.), and so on. Surprisingly good fuel consumption figures have become something of a hallmark in recent generations, and it was a top priority to preserve that leadership in the new generation.
So the new C7 figures to weigh more-or-less the same as the C6, but engineers says they've taken pains to locate the weight in the right places to ensure 50/50 weight distribution. That means splurging on things like the carbon roof and hood panels to assure a lower center of gravity, but also means using lighter sheet-molded compound for the fenders, doors and rear quarters, not to mention advanced carbon-nano composite underbody panels. Together, those changes account for a weight loss of around 37 pounds."
Chevy so far only says the C7 will have a better power to weight ratio than the 911 Carrera or the Audi R8.
From AutoBlog:
"99 pound frame weight reduction. Those weight savings are important, because in order to meet ever-stricter crash regulations, develop a much richer interior and add performance, some weight had to be added back in the form of new equipment. Counterintuitively, Chevy tells Autoblog that if its engineers didn't have to care about fuel economy, the C7 would actually be lighter.
The new small block incorporates features like direct injection, variable-valve timing and cylinder deactivation ("Active Fuel Management") trickery, all of which adds weight. The new engine management hardware alone adds 35 pounds, plus there's a further 5.5 pounds for the AFM exhaust valves (so the engine doesn't sound objectionable when operating in V4 mode), another 15 or so pounds for the steel torque tube to help improve drivability with AFM, etc.), and so on. Surprisingly good fuel consumption figures have become something of a hallmark in recent generations, and it was a top priority to preserve that leadership in the new generation.
So the new C7 figures to weigh more-or-less the same as the C6, but engineers says they've taken pains to locate the weight in the right places to ensure 50/50 weight distribution. That means splurging on things like the carbon roof and hood panels to assure a lower center of gravity, but also means using lighter sheet-molded compound for the fenders, doors and rear quarters, not to mention advanced carbon-nano composite underbody panels. Together, those changes account for a weight loss of around 37 pounds."
As it is, this part would be true.