Was looking to possibly buy a Shelby

theDreamer

The argument of the 7.0 is because it skips gears to create its fuel efficency and has to make sacrifices to reach those MPG. I drove hard in the city last week and still hit 20MPG, and by hard I mean never shifting before 4k and haivng a lot of fun runs with friends.

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ImportConvert

I know it's not a 7.0, but my 5.7 had the same feature, and I never used it. I still got over published mileage in the city, and that car was over 100K miles old. I am willing to bet my Z06 would get well over 16mpg in the city without using it, too. Actually, the skip-shift feature is VERY unobtrusive on the Z06. I hardly ever run into it. I shift before I reach the rpm window usually and it still accelerates nicely.

cossie1600

you might want to check your figures, the countrys biggest expendutire is in the military.

cossie1600

youe point makes no sense, the car is geared for a car with 500hp. the car in 4th gear at 25mph has more power than your car in 2nd

theDreamer

Highly doubt that since I have a SC 370z and I know what a C6 Z06 can do in 2nd gear.
The point of the post was the car makes sacrifices to achieve fuel economy. I am saying not that is a huge negative (would love to have a LS7) but it has to do something to achieve its higher MPG which keeps it out of the gas guzzler field. Maybe GM should have invested in making a more modern engine instead of focusing on just larger displacement with its latest LS motors.

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cossie1600

2011 GTR combined fuel mileage is 17 (15-21). Z06 is 18 (15-24). ZR1 is 16 (14-20). I don't care what technology it has, it is still pretty impressive given what it can do. The skip shift is just a way to fool the CAFE test, not much different than an automatic transmission locking its converter. The gear on the C6 is built for track, it has the power to back it up. It's the same reason why the 370 has taller gear than the 350. If you put gears from a Civic in a Corvette, you will just spin tires and make pointless shifts. If anything, Chevy is smart to have an engine that can develop power from basically 2000 to 6500. I don't get why these threads always become hate threads. Most of the Corvette guys think they have the best car and all the Japanese drivers think they have the best car. It's ignorant. Is it that hard to respect one another's car and choice.

theDreamer

When did I say I had the best car?
Guess what, I almost bought a Z06 before the 370z but felt it was a bit out of my price range at the time so I went conservative. Does not change the fact that I feel the technology in the Vette is old and needs to be updated. Yes the gear skip is to beat CAFE, but GM needs to invest in a future, not games to beat a system.

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FL 4Motion

soooo, about that shelby mustang...

shadoquad

I was just pulling up the numbers. Both cars are capable of the same mileage, but that's not why we buy these cars, is it?

And true, the GTR really battles the ZR1 for performance.

toner123

I know right I got thread jacked about 5 pages ago lol.

BeachZTT

^^^ Hahahaha, check your pockets.

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cossie1600

I don't see why it has to change for the sake of changing if it can offer the same fuel mileage, emission and performance. It's the same reason why we have 18s and 19s on every car now even though 16s and 17s are just as good and if not better. You are paying 50-60K for a car that can perform like a 100K car. That is impressive by any standard. CAGS is only activated when you are rolling off the line slowly anyway. Unless you are taking it easy, you are not going to feel a single thing. It's overblown like the Prius runaway stories. Speaking of technology and Prius, now that is a car full of technology.

NASCAR Cup cars can run 9000RPM making 800HP+ with a carb on there!

ImportConvert

Maybe you should show me another engine that makes the same (or more) horsepower and gets the same (or better) economy.

The LS7 is just fine. It weighs around 450#, makes 505bhp, and will get 26mpg on the freeway in my experience.

Oh, it has a 5/100K mile warranty, too.

Go find me this "modern" engine that can equal that for $15K.

It doesn't exist.


Did you actually do any research on why the corvette has the engine that it does?

Have you actually compared the physical weight of the LS series engines (about 450#) to their competitors? Have you compared mileage? Have you compared power under the curve?

Noone gives a damn about displacement, it's a means to an end. What designers care about is power/weight, and the LS-series engines are KING in that department. Compare them to any N/A engine out there and you will find that the only one's that better them in physical power/weight cost roughly $50K and are found in AMG's. The LS7 costs $14K.

Now you bitch about mileage. Bring up skip-shift. Bring up all that crap.

Well why don't you go look at a 'vette with an LS3 and a slush-box? It gets 1mpg less in the city than the stick. It has no CAGS. It has an efficiency-robbing hydraulic tq converter.

CAGs. It's not doing all that you think it is.

Just because the LS3 and LS7 use old concepts does not mean that they are not cutting edge engines. Your tires are still round and all that. Doesn't mean the rubber around the rim is as old a design as the wheel-shape, if you get the drift.

ImportConvert

I have got 3K miles on my Z06 and hit CAGS less than a dozen times. There are VERY specific parameters, and in the Z06 and I assume the Viper, they are a lot harder to "hit" than in the F-body I had.

ImportConvert

Stay tuned for when Ford actually puts some meat out back or you might as well buy a BOSS. At least it can put *most* of its power to work and the 0-100 times are within a tenth or two because of it.