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Subtract 41 pounds for carbon wheels. Not sure what the weight difference is between 1LZ no lift and 3LZ with lift is.
Maybe someone can build a calculator?
EDIT for clarificatory background:
As the thread unfolds few misconceptions seem to be raising for the above EPA US Curb Weights.
1. Confusion between EPA US Curb weights and NHTSA GWVR (Gross Vehicle Weight Rating).
Two different agencies measuring or labeling two different weight attributes.
EPA wants US curb weight to measure the car fuel consumption and emissions. For the EPA it is important to weight a real production car in real road weight situations and the cars they test is a representative car in the fleet and therefore besides insuring the car is full of fluids and gas EPA also ascertains the manufacturer does not play the proverbial games with OEM delete options such as deleting the A/C or the infotainment or deleting other options on purpose.
NHTSA is a safety agency. The GWVR sticker on each US car is there to ascertain and communicate GWVR which stands for Gross Vehicle Weight Rating which is frequently but erroneously interpreted as the car Curb Weight. The reason the NHTSA annotates the GWVR on the door is to communicate tire loads for safety reasons. US Curb weight of a car is a car fully tanked full of fluids. GWVR is a car fully tanked full of fluids full of passengers full of cargo plus towing capacity. Therefore GWVR is numerically abundantly larger than Curb Weight.
2. Confusing and misleading yet, there is a misconception that the NHTSA GWVR can still be used to ascertain the car Curb Weight. As per above, it is believed that by subtracting the maximum advertised load the car tires can withstand (NHTSA Rated Cargo Load) from the GWVR then the Curb Weight is obtained.
This is both mathematically incorrect BUT practically close in modern day cars.
In the case of 2 seater sports cars with no trailer this NHTSA subtraction 'trick' may be close to the 150 to 200 pounds range. In the case of the Corvettes C8s even sub 100 for those happy to figure the car weight with a 100 pounds tolerance. The reason there is still approximately 100 to 200 pounds difference between the two is because the rated maximum cargo load is a calculated theoretical number averaged for safety. Curb weight is scale weighted and cargo load is theoretical.
Again, The chart above is meant as a reference for the C8 Z06 US curb weights.
Last word on chart options.
EPA cares about US Curb weights. Corvette cares about guzzler taxes. The reason the chart is subdivided into cabrio vs hard top convertible AND Carbon Aero and non Aero is for gas consumption and emissions based on drag and weight. The chart subdivision should become clearer once it is interpreted with that caveat.
Last edited by Telepierre; 09-13-2022 at 06:55 AM.
I have to say, I am fairly excited about a variant that is 36XX lbs! Put a lightweight battery in it and you're potentially at 3650. Sad to be excited about 3650lbs, but that is the world we live in. When we go full electric we'll be excited about 4650lbs...... Queue sad trombone.....
On a random other note, how hilarious would it be for GM to set their Ring time and then pull a set of CF golf clubs out of the trunk. I mean if you're going to get ripped, lean into it and put the "world on notice" with a giant FU. I figure you could get a minimal set of CF clubs and nylon bag in under 10lbs.....
Subtract 41 pounds for carbon wheels. Not sure what the weight difference is between 1LZ no lift and 3LZ with lift is.
Maybe someone can build a calculator?
So how much will a 3LZ, Z06, no CF wheel car will weigh? Is it 3820 lbs?
I have to say, I am fairly excited about a variant that is 36XX lbs! Put a lightweight battery in it and you're potentially at 3650. Sad to be excited about 3650lbs, but that is the world we live in. When we go full electric we'll be excited about 4650lbs...... Queue sad trombone.....
On a random other note, how hilarious would it be for GM to set their Ring time and then pull a set of CF golf clubs out of the trunk. I mean if you're going to get ripped, lean into it and put the "world on notice" with a giant FU. I figure you could get a minimal set of CF clubs and nylon bag in under 10lbs.....
6:59 on the way to the 1st tee..... FU Porsche.
FU PORSCHE Both the GT3 and GT2 crushes that number what F world do you live in?????
Another example (my build): First entry is Coupe 3LZ+, no carbon wheels, no Z07 package, no carbon fiber brakes no high wing.
4048-300= 3748 pounds
Which seats? What do those option codes mean? Are they explained somewhere? I am guessing my build, 3LZ, carbon wheels, Z07 package, high wing will weigh 3704 lbs.
Wow Obese USDM.... Now I know why some here were asking for a lightweight version... jeebus..
I think vast majority of owners will have a 3800 lbs version. 3LZ, GT2 seats, aluminum wheels, front axle lift, it should tip the scales at slightly over 3800 lbs. With the driver in it, 4,000 lbs. It will be a heavy car. I think weight and dimensions are going to be a problem. The outgoing Z06 was a full 320 lbs lighter and was down 20 hp. Thats not very promising. And even that car was way too heavy. With the 3800 lbs, you’ll be lucky if you get 1 full track weekend out of those ceramic brakes.
I think vast majority of owners will have a 3800 lbs version. 3LZ, GT2 seats, aluminum wheels, front axle lift, it should tip the scales at slightly over 3800 lbs. With the driver in it, 4,000 lbs. It will be a heavy car. I think weight and dimensions are going to be a problem. The outgoing Z06 was a full 320 lbs lighter and was down 20 hp. Thats not very promising. And even that car was way too heavy. With the 3800 lbs, you’ll be lucky if you get 1 full track weekend out of those ceramic brakes.
Agreed, tires and brakes.. they will get destroyed, quickly.... I drive a lot and will do about 10k km per season at least.. so consumables need to be accounted for.
I've said it before in other threads, but at the very least, GM could create an "RS"-style lightweighting option package, charge $30k+ for it (heck they already are charging $20k more for the car than planned), have the lap time bragging rights with it that elevates the entire Corvette brand, and have a decent amount of takers on that package.
They could offer some of the low-hanging fruit for this lightweighting package- lithium starter battery, Lexan rear window and thinned other glass, lighter seats, titanium exhaust, removed sound deadening, etc.
They did many of these things on the C5 Z06 to reduce weight; they can do it again at least as an option package.
I threw in porky beasts here like a 4 door 5 seater sedan BMW and a $50,000 ford mustang as well as the GT350.
Before anyone says "adding 300 lbs of extra weight on a car with 600+ hp means nothing". Please watch the following video. Keep in mind this is an AWD car with excellent launch control so it removes the element of "not able to launch the car properly each time". Simply adding a passenger adds 10 ft to your braking and 0.2 seconds to your 0-60 time and 1/4 time. I am much more concerned with braking and tires than acceleration but 0.2 seconds in 1/4 mile is like the difference between C7 Z06 and ZR1.
This isn't mean to be a "vs. Porsche" post. Use the video as an aid to figure out the penalty of more weight.
I've said it before in other threads, but at the very least, GM could create an "RS"-style lightweighting option package, charge $30k+ for it (heck they already are charging $20k more for the car than planned), have the lap time bragging rights with it that elevates the entire Corvette brand, and have a decent amount of takers on that package.
They could offer some of the low-hanging fruit for this lightweighting package- lithium starter battery, Lexan rear window and thinned other glass, lighter seats, titanium exhaust, removed sound deadening, etc.
They did many of these things on the C5 Z06 to reduce weight; they can do it again at least as an option package.
The biggest weight penalty on this car is the seats. They add 80 lbs over a fixed bucket like Porsche LWBs. GM knows this. GM also knows building a fixed bucket seat and have it crash tested and approved with the new airbags cost so much. Those things you mentioned won't really accomplish anything meaningful without the seats also being addressed. Titanium exhaust (-20 lbs), lighter battery (-20 lbs), bucket seats (-80 lbs), light weight glass (-10 lbs), fixed roof without targa (-10 lbs), that's 140 lbs. But still not enough. You need to lose another 150 lbs to really shed proper weight and that won't really happen without structural changes. GM's frame is too big, too heavy. For as long as golf bags is one of their goals, lightweight cannot be. I don't see them going lighter. I believe ZR1 will add an extra 150 more lbs (optimistically). The Zora with electric motors would be another 300 lbs (optimistically). I am simply going off with how much those components add. The intercooler, turbos, extra radiators, bunch of hoses and other things in a turbo car will easily add 100 lbs on their own. Then there is the wider panels and other scoops and things. If they end up adding hydraulics for active aero, all of that add more weight.
Then their is the elephant in the room, the transmission. 8 speeds with fuel economy as a goal make that one big fat transmission. There is a reason why others have 7 gears in their track cars. It saves weight.
It is extremely hard to remove weight once your platform becomes heavier.
Last edited by UnhandledException; 09-12-2022 at 10:00 AM.
I think vast majority of owners will have a 3800 lbs version. 3LZ, GT2 seats, aluminum wheels, front axle lift, it should tip the scales at slightly over 3800 lbs. With the driver in it, 4,000 lbs. It will be a heavy car. I think weight and dimensions are going to be a problem. The outgoing Z06 was a full 320 lbs lighter and was down 20 hp. Thats not very promising. And even that car was way too heavy. With the 3800 lbs, you’ll be lucky if you get 1 full track weekend out of those ceramic brakes.
So how much will a 3LZ, Z06, no CF wheel car will weigh? Is it 3820 lbs?
For those that are not reading and math impaired, the only cars on that list that are over 3800 pounds curb weight are HTCs. If someone was really concerned about the track and weight, they would not be buying an HTC.
Again, tell us why you are still here since you are so unhappy with the Z06? Enjoy your C7 ZR1, and move on. The level of stress you are showing, can't be good for your health. We are concerned for your health. Just move on.
For those that are not reading and math impaired, the only cars on that list that are over 3800 pounds curb weight are HTCs. If someone was really concerned about the track and weight, they would not be buying an HTC.
Again, tell us why you are still here since you are so unhappy with the Z06? Enjoy your C7 ZR1, and move on. The level of stress you are showing, can't be good for your health. We are concerned for your health. Just move on.
That is what I was asking (the meaning of codes), because I dont know what they mean. How much does the coupe 3lz z07 no CF wheel car weigh?
09-12-2022, 03:00 AM
EPA releases C8 Z06 Multiple Variants Weight Data
