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Grand sport weight

Old 11-14-2010, 09:47 AM
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Fast98
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Default Grand sport weight

What is the weight of a 1lt grand sport 1lt and what is the weight of a 3lt?
Old 11-14-2010, 10:05 AM
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AFVETTE
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Originally Posted by Fast98
What is the weight of a 1lt grand sport 1lt and what is the weight of a 3lt?
From the Spec page posted on the NCM web site:
http://www.corvettemuseum.com/specs/2010/index.shtml

Curb weight (lb / kg):
3311 / 1502 (Grand Sport Coupe)
3289 / 1492 (Grand Sport Convertible)

I have yet to see any official weights posted for the various option packages, so we can either assume the weights published are "worse case" meaning 4LT or "best case" meaning 1LT.

Tom
Old 11-14-2010, 10:41 AM
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GSRANDY
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The shipping weight on my 2010 Z52 GS with the 3LT option package was listed as 3273LB on the factory invoice.

Regards,

GSRANDY
Old 11-14-2010, 11:06 AM
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Originally Posted by AFVETTE
From the Spec page posted on the NCM web site:
http://www.corvettemuseum.com/specs/2010/index.shtml

Curb weight (lb / kg):
3311 / 1502 (Grand Sport Coupe)
3289 / 1492 (Grand Sport Convertible)

I have yet to see any official weights posted for the various option packages, so we can either assume the weights published are "worse case" meaning 4LT or "best case" meaning 1LT.

Tom
Did you switch your weights around? That's the first time I have even seen a vert weigh less than a coupe...
Old 11-14-2010, 03:43 PM
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Originally Posted by Tom's_03SVT
Did you switch your weights around? That's the first time I have even seen a vert weigh less than a coupe...
That doesn't make much sense.
Old 11-14-2010, 07:12 PM
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Originally Posted by Tom's_03SVT
Did you switch your weights around? That's the first time I have even seen a vert weigh less than a coupe...
No cut and pasted from the site, you can click on the link I provided and see for your self.

Tom
Old 11-14-2010, 07:14 PM
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Originally Posted by Tom's_03SVT
Did you switch your weights around? That's the first time I have even seen a vert weigh less than a coupe...
On the C5's the vert only weighed around 6 pounds more then the coupe. The weight shown might be for a dry sump coupe vs a wet sump vert. The dry sump does weigh more more then the wet sump. Oil, tank, lines, heat exchanger all add up.
Old 11-14-2010, 08:03 PM
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Originally Posted by AFVETTE
No cut and pasted from the site, you can click on the link I provided and see for your self.

Tom
Im not blasting you brother, just asking. Usually the additional srtructural bracing adds about a 100lbs difference on most cars.
Old 11-15-2010, 03:01 PM
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Originally Posted by Tom's_03SVT
Im not blasting you brother, just asking. Usually the additional srtructural bracing adds about a 100lbs difference on most cars.
not for cars that are designed as a vert first. For reference see Corvette and Boxster/Cayman.
Old 11-15-2010, 03:17 PM
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This means the G/S coupe weighs 103 pounds more than the base coupe and 136 pounds more than the wide-bodied, fat wheels/tires Z06 coupe.
Old 11-15-2010, 03:53 PM
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Interesting....On my door sticker (2011 GS Coupe, A6, F55):

GVWR = 3814 (as I understand it: The GVWR includes the net weight of the vehicle, plus the weight of passengers, fuel, cargo and any additional accessories.).

Subtracting the curb weight from above of 3311 pounds leaves 503 pounds of payload.

I'm a fairly big guy (6' 2", 255lbs.), so I'm left with 248 lbs for passenger, luggage and fuel.

Let's say 15 Gals at 6lbs/Gal = 90 lbs of fuel. So now I'm at: 158 lbs left.

Add in the wife (she's tall, and slender....not overweight by any stretch of the imagination)....and we're down to like a duffel bag with underwear for luggage!

Last edited by DigitalWidgets; 11-15-2010 at 03:56 PM.
Old 11-15-2010, 06:16 PM
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Originally Posted by DigitalWidgets
Interesting....On my door sticker (2011 GS Coupe, A6, F55):

GVWR = 3814 (as I understand it: The GVWR includes the net weight of the vehicle, plus the weight of passengers, fuel, cargo and any additional accessories.).

Subtracting the curb weight from above of 3311 pounds leaves 503 pounds of payload.

I'm a fairly big guy (6' 2", 255lbs.), so I'm left with 248 lbs for passenger, luggage and fuel.

Let's say 15 Gals at 6lbs/Gal = 90 lbs of fuel. So now I'm at: 158 lbs left.

Add in the wife (she's tall, and slender....not overweight by any stretch of the imagination)....and we're down to like a duffel bag with underwear for luggage!
Curb weight already includes a full tank of fuel so now you have 90 pounds more luggage capacity than you thought, that is if all added weights are distributed optimumly front to rear, which they never are.
Old 11-16-2010, 12:24 AM
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The added weight of the coupe is due to the weight of the glass hatch. Glass is a very heavy and dense material and the reason the C5 Z06's didn't have one.
Old 06-30-2015, 12:46 PM
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Bump.

Has anyone ever figured out the different weights of the GS Coupe with the different trims? Is the 3311lb number for a 1LT or 4LT? Auto or Manual w/ Dry Sump? I want to figure out what my car weighs with the weight saving mods I've done... headers, seats, rotors etc. It's a manual 2LT
Old 06-30-2015, 01:56 PM
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I have a 2011 GS 1lt conv, m6 ordered bone stock, so no power top or NNP saving weight right off the bat. The conv is a wet sump LS3 .I planed on changing exhaust and a few things myself. My cars weight is 3,209 lb. In 2011 goodyear gen 2 tires were standard, I think they are few pounds less than gen 1 on the 2010's…For comparison my friends 2011 GS vert. 4lt , NPP, F55,Chrome rims weighs in at 3,381. Hope this helps.

Last edited by KABAL182; 06-30-2015 at 02:11 PM.
Old 06-30-2015, 02:20 PM
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If anybody cares my base coupe 1LT with NPP and A6, the shipping weight was #3199 I'm guessing the original question is how much each package weighs. 1LT, 2LT, 3LT and 4LT
Old 06-30-2015, 02:54 PM
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Originally Posted by 94boosted
Bump.

Has anyone ever figured out the different weights of the GS Coupe with the different trims? Is the 3311lb number for a 1LT or 4LT? Auto or Manual w/ Dry Sump? I want to figure out what my car weighs with the weight saving mods I've done... headers, seats, rotors etc. It's a manual 2LT
Most truck stops, moving companies and even waste hauling stations will weigh your car for you. They may charge you $5, but that is how I have weighed vehicles in the past. Their scales are certified, then you know for sure

Then you are not guessing....

EDIT - I have an even easier one for you. I just called a local interstate weigh station, and they will do any car for free, no hassles. Just follow the tractor trailers into an open weigh station, and get your weight checked. Just remember to deduct your weight, plus any cargo from the total.

Last edited by Seadawg; 06-30-2015 at 03:00 PM.

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Old 06-30-2015, 03:07 PM
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Originally Posted by JoesC5
The weight shown might be for a dry sump coupe vs a wet sump vert. The dry sump does weigh more more then the wet sump. Oil, tank, lines, heat exchanger all add up.
Additional components on GS Coupe vs GS Convertible:

Dry Sump: +25 pounds (extra oil, oil tank, hoses, bracketry, etc. weight gain is over the std wet sump)
Rear battery: +9 pounds (battery bracket, extra lengths of heavy battery cabling)
(GS convertible has neither the dry sump nor the rear battery)

Right there is 34 pounds additional weight that the GS coupe carries over the GS convertible.

Since the published weight difference between the coupe and convertible is only about 22 pounds (3311 GS coupe, 3289 GS vert, according to the GM published figures in 2011), it would seem to indicate that the weight difference between the coupe's glass hatch/roof panel and the convertible's top/folding mechanism, trunk lid and hinges -- is probably a wash or even *slightly* in favor of the coupe.

Last edited by Kent1999; 06-30-2015 at 03:14 PM.
Old 06-30-2015, 03:43 PM
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Originally Posted by KABAL182
I have a 2011 GS 1lt conv, m6 ordered bone stock, so no power top or NNP saving weight right off the bat. The conv is a wet sump LS3 .I planed on changing exhaust and a few things myself. My cars weight is 3,209 lb. In 2011 goodyear gen 2 tires were standard, I think they are few pounds less than gen 1 on the 2010's…For comparison my friends 2011 GS vert. 4lt , NPP, F55,Chrome rims weighs in at 3,381. Hope this helps.
3209-3381 is quite the range but those being vert's isn't really applicable to me thank you though.

Originally Posted by Seadawg
Most truck stops, moving companies and even waste hauling stations will weigh your car for you. They may charge you $5, but that is how I have weighed vehicles in the past. Their scales are certified, then you know for sure

Then you are not guessing....

EDIT - I have an even easier one for you. I just called a local interstate weigh station, and they will do any car for free, no hassles. Just follow the tractor trailers into an open weigh station, and get your weight checked. Just remember to deduct your weight, plus any cargo from the total.
I've gone through an interstate weigh station but I don't think their scales are very accurate I bet it's +/- 100kg and it was in 10kg increments ( ) reason I say that is the scale showed 1550kg (= 3410lbs) which is way too heavy for the car without the driver and only 1/4 tank of fuel haha
Old 06-30-2015, 05:36 PM
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Originally Posted by Kent1999
Additional components on GS Coupe vs GS Convertible:

Dry Sump: +25 pounds (extra oil, oil tank, hoses, bracketry, etc. weight gain is over the std wet sump)
Rear battery: +9 pounds (battery bracket, extra lengths of heavy battery cabling)
(GS convertible has neither the dry sump nor the rear battery)

Right there is 34 pounds additional weight that the GS coupe carries over the GS convertible.

Since the published weight difference between the coupe and convertible is only about 22 pounds (3311 GS coupe, 3289 GS vert, according to the GM published figures in 2011), it would seem to indicate that the weight difference between the coupe's glass hatch/roof panel and the convertible's top/folding mechanism, trunk lid and hinges -- is probably a wash or even *slightly* in favor of the coupe.
To confuse the weights even more the auto trans coupes don't have the dry sump or rear mount battery. Who knows the weight difference between the stick and automatic trans models.

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