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Old Oct 30, 2010 | 08:03 PM
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Default C7 Next Engine

The next gen engine for the C7 WILL BE a direct injection, turbo VERY similar to the Ford Eco Boost. V6? V8? Who knows, but expect 3.5-4.5 liters, easily 450hp and 400 ft. lbs with achieving significantly over 30mpg. The 5.7 liter to 6.3 liter LS1 days are numbered. This smaller engine is in development and will be the next engine going into GM trucks to meet 2015 Pick-up fuel mileage ratings, and since 1953, the Corvettes and Pick-ups have basically carried the same engine, of course performance versions for the Vettes.
Flame Suit on....
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Old Oct 30, 2010 | 10:57 PM
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Uh... no. No it wont. It will have a 5.5 v8 as the base cars engine. It's already been declared. Your post fails. I hope no one else comments on this thread so it goes away...
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Old Oct 31, 2010 | 08:54 AM
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Originally Posted by McGirk94LT1
Uh... no. No it wont. It will have a 5.5 v8 as the base cars engine. It's already been declared. Your post fails. I hope no one else comments on this thread so it goes away...
"Declared" by who? I would like to see the official announcement if you can link me to it.
I am getting info from engineering testing and a 5.5 D.I. without a turbo will not make 2015 gas mileage requirements in most vehicles. I can see it in a Vette with a costly turbo option.
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Old Oct 31, 2010 | 11:01 AM
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Originally Posted by Tim01Coupe
"Declared" by who? I would like to see the official announcement if you can link me to it.
I am getting info from engineering testing and a 5.5 D.I. without a turbo will not make 2015 gas mileage requirements in most vehicles. I can see it in a Vette with a costly turbo option.
The Corvette does not have to meet mileage standards. GM does. Also what if they make it flex fuel? Using the mileage standard it will get more credit for the mileage rules than it attains in actuality.

How do you know it will not meet the standards? Do you know the weight of the 2015 Corvette? The Cd? Frontal area? Rolling resistance of the tires? Driveline drag? Then you don't know.
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Old Oct 31, 2010 | 11:24 AM
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hmmm interseting after I read that article

Last edited by Chicago1; Oct 31, 2010 at 01:15 PM.
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Old Oct 31, 2010 | 12:51 PM
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http://www.automobilemag.com/feature...ity/index.html
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Old Nov 1, 2010 | 05:57 AM
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Originally Posted by McGirk94LT1
Uh... no. No it wont. It will have a 5.5 v8 as the base cars engine. It's already been declared. Your post fails. I hope no one else comments on this thread so it goes away...
Rude, but correct. This thread unfortunately won't go away... LOL

Originally Posted by Tim01Coupe
"Declared" by who? I would like to see the official announcement if you can link me to it.
I am getting info from engineering testing and a 5.5 D.I. without a turbo will not make 2015 gas mileage requirements in most vehicles. I can see it in a Vette with a costly turbo option.
LOL! Your engineering buddy isn't right. Adding a turbo to a 5.5L motor isn't going to increase it's mileage. LOL It will increase it's power only. The idea behind a turbo is to artificially add displacement. By adding a turbo to the already large displacement, you're actually just adding more displacement which means more fuel. And consequently removing efficiency from low-load driving and adding back-pressure. The only way a turbo motor makes sense is if you're using the turbo to make up for the lack of displacement on a smaller motor. That's when you get better economy. You have to balance the low-load requirements, turbo efficiency, and natural displacement.

Now if they did a 3.0L turbo, that would make sense for economy. THANK GOD they're NOT doing a turbo model.

The 5.5L Direct Injection N/A motor will be the base motor in the Vette. It will product 450BHP (from what I understand) and likely will also include a lot of other newer technologies like variable timing. I'm hoping that they start making motors with variable lift and variable displacement like other manufacturers are currently using, but that may not be for some time down the road.

I'm going to assume that a lighter Vette with this 5.5L DI motor will get mid-30's on the freeway and mid 20's on the street. GM's been doing testing with dual clutch transmissions. I don't think the first year of the C7s will have this transmission, but it's not unlike them to change the transmission options mid-generation.
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Old Nov 3, 2010 | 07:32 PM
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Originally Posted by McGirk94LT1
Uh... no. No it wont. It will have a 5.5 v8 as the base cars engine. It's already been declared. Your post fails. I hope no one else comments on this thread so it goes away...
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Old Nov 5, 2010 | 06:17 PM
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Originally Posted by Tim01Coupe
"Declared" by who? I would like to see the official announcement if you can link me to it.
I am getting info from engineering testing and a 5.5 D.I. without a turbo will not make 2015 gas mileage requirements in most vehicles. I can see it in a Vette with a costly turbo option.
By GM, months ago. It's all we know for sure about the C7 at this time. Also, no mid engine til C8.
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Old Jun 3, 2011 | 07:04 PM
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Default I told you so

Originally Posted by scm_crash
rude, but correct. This thread unfortunately won't go away... Lol



lol! Your engineering buddy isn't right. Adding a turbo to a 5.5l motor isn't going to increase it's mileage. Lol it will increase it's power only. The idea behind a turbo is to artificially add displacement. By adding a turbo to the already large displacement, you're actually just adding more displacement which means more fuel. And consequently removing efficiency from low-load driving and adding back-pressure. The only way a turbo motor makes sense is if you're using the turbo to make up for the lack of displacement on a smaller motor. That's when you get better economy. You have to balance the low-load requirements, turbo efficiency, and natural displacement.

Now if they did a 3.0l turbo, that would make sense for economy. Thank god they're not doing a turbo model.

The 5.5l direct injection n/a motor will be the base motor in the vette. It will product 450bhp (from what i understand) and likely will also include a lot of other newer technologies like variable timing. I'm hoping that they start making motors with variable lift and variable displacement like other manufacturers are currently using, but that may not be for some time down the road.

I'm going to assume that a lighter vette with this 5.5l di motor will get mid-30's on the freeway and mid 20's on the street. Gm's been doing testing with dual clutch transmissions. I don't think the first year of the c7s will have this transmission, but it's not unlike them to change the transmission options mid-generation.
and i got beat up for this post.
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Old Jun 3, 2011 | 10:49 PM
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Ironic, though, huh? I said "If they did a 3.0L turbo, that would make sense for economy." HAHAHA And look was is supposedly in the mill.

However, besides the 3.0L Turbo V8, they're going with a 5.5L N/A motor still.
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Old Jun 4, 2011 | 06:30 AM
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This thread is the epitome of irony.
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Old Jun 4, 2011 | 09:13 AM
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New rule: all claims must come with a reference
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Old Jun 4, 2011 | 01:30 PM
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Dont know how accurate of a source this is, but it sounds like someone who knows something..


http://autos.yahoo.com/news/next-cor...turbo-v-8.html
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Old Jun 4, 2011 | 01:53 PM
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Originally Posted by ChevyChad
Dont know how accurate of a source this is, but it sounds like someone who knows something..


http://autos.yahoo.com/news/next-cor...turbo-v-8.html
Don't bet the house on it.
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Old Jun 6, 2011 | 11:50 PM
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Originally Posted by JustinStrife
Don't bet the house on it.



me too
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