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Chevrolet Corvette Z06

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#95 of 221 starrow68 & bikhemi by spiritinthesky Nov 06, 2005 (3:32 am)
I must be a glutton for punishment for even trying. Re-read my previous post, nice and slowly if necessary to get the point.   Yes, the "for the record" 3170 lb Corvette got a whopping 2.5 mpg more than my "for the record" 4,055 lb M5 carrying 400+ more lbs of passengers and cargo. But that's a far cry short of the 7 mpg advantage the EPA would claim. I know of relatively few American cars that can achieve their EPA highway estimate in real world driving at 70-75 mph. Every BMW I've owed exceeds it. Same with friends' Mercedes. If you are exceeding your EPA highway estimates, congratulations. You are the exception.   I'll try not to get suckered into a debate on the "efficiency" of a Chevy's 7.0 liter pushrod engine that produces 505 hp vs. BMW's ability to get the same power from a 5.0 liter 8,200 rpm V10. Or Porsche's ability to get 355 hp out of 3.8 liters that matches or beats the 400 hp Corvette in 0-60 acceleration. I've seen the response before that hp/liter is not important, so I'll leave that modern engineering vs. push rod debate alone, if you will.   Government conspiracy, probably not. But the EPA is about as good at fuel efficiency estimates as I am at throwing darts. The should stick with cleaning up their superfund sites. My neighbor had a 240 hp 2.0 liter Honda S2000 rated at 26 on the highway. He regularly averaged 32+/- at 75 mph (that's 23% over the EPA estimate, for the record). Anyone in a Corvette want to take that on with your 400 hp 6.0 liter V8 rated at 28 mpg? Replies to this message: starrow68 (Nov 06, 2005 11:56 am) blkhemi (Nov 06, 2005 5:33 pm) xkss (Nov 12, 2005 10:09 pm) texasmerq (Nov 16, 2005 3:11 pm)
#96 of 221 Re: starrow68 & bikhemi [spiritinthesky] by starrow68 Nov 06, 2005 (11:56 am)
Replying to: spiritinthesky (Nov 06, 2005 3:32 am) Sprit.. no need to reread, you are talking about exceeding the published numbers by percentages. We are talking about not putting the blame on GM if BMW and others can't figure out how to get the test to show the real world. Remember back in school, some people studied a lot and some were good at taking tests, that's GM. Bellyaching about why your car has bad test results but good real world performance is something you might take up with BMW.      Read Corvette message boards, everyone and that includes the moderators here complain about the 1st to 4th skip shift but since the test calls for a shift at a specific RPM that gets the job done and produces a test result that saves GM and its buyers the gas guzzler tax. The EPA just does the best horse design that a committee can, and maybe it's a camel, but if you try to put a horse saddle on it, who is making the mistake? GM seems to have figured it out. Enjoy your real world mileage, when I'm on track I get as low as 7mpg, gotta love torque and cubes ... Randy
#97 of 221 Re: starrow68 & bikhemi [spiritinthesky] by blkhemi Nov 06, 2005 (5:33 pm)
Replying to: spiritinthesky (Nov 06, 2005 3:32 am) I don't understand where the problems come in at. The M5 and Vette are two different beasts. Sure the M5 is competent(albeit not as competent as an E55), but it can't prance like a Vette, especially a Z06. And as for the fuel econ estimates, in regular driving without even revving hard I can see upwards of 35mpg. Remember, the EPA can only ESTIMATE, not give a certain figure. And as Randy said, the 1-4 shift feature is a pain. However, with it Chevy saved us from having to pay gas guzzler tax.   Here is an example: A 2006 BMW 645i 6-speed stick gets 17/25, according to the EPA. A 2005 Vette Z51 6-Speed stick gets 18/28, according to the EPA.   The Vette with 400hp and 400 pound feet of torque with a 6.0L motor gets BETTER fuel economy than the Bimmer with 325hp and a smaller 4.4L V8. Even the autobox Vette gets better fuel mileage at 18/26. And you call this technology? I sure would love to see it. Oh and for the record, the Bimmer gets penalized with a $1300 gas-guzzler tax. It even gets hit hard in it's own country of origin Germany. All for it's more "modern design". I guess Randy and I will be keeping our "old-tech" Vettes.   P.S.- As for the 2.5mpg and not the 7 that was claimed, remember everyone has different driving styles. Even tho all of the cars were going the same speed, if the cruise wasn't set it makes all the difference in the world.
#98 of 221 Just for fun ... by starrow68 Nov 07, 2005 (10:46 am)
http://automobilemag.com/reviews/coupes/0511_z06_gt_viper/   Out for a month on the news stand, but for those that don't hang at the mag racks, fun reading.
#99 of 221 Another review by starrow68 Nov 08, 2005 (8:44 am)
http://www.topgear.com/drives/CB/A1/roadtests/03/01.html   With perspectives from the other side of the Atlantic. Glad I don't buy cars or pay for gas over there. Randy
#100 of 221 cars by xkss Nov 12, 2005 (10:09 pm)
Replying to: spiritinthesky (Nov 06, 2005 3:32 am) The weight of an engine has a bigger effect on a car than hp/liter.   Despite "F1" technology, the new M5's engine weighs 529 pounds which is 91 pounds more than AMG's new 6.2 liter (AMG calls it 6.3 though).   A new C6 Z06 owner reported better hw mpg than the factory on a busier Corvette forum.   Car & Driver recorded 0-60 in 3.4 seconds, 0-100 in 7.8 seconds (December issue), and 0-150 in 17.5 second (October issue).   The following is from Motor Trend October 2005:   Standing 1/4-mile: 11.5 sec at 127.1 mph   Lateral acceleration: 1.05 g average
#101 of 221 back to the actual thread... by xkss Nov 12, 2005 (10:13 pm)
#102 of 221 upcoming vette by diablo_dude Nov 13, 2005 (8:32 pm)
I heard that the 07 Z06 may have an option for the automatic 6 speed paddle shifter. I am not here to start any arguments about automatic vs manual on the Z06. Rather I just want to know if this is a rumor or if there is some truth behind it. Let me know. Replies to this message: blkhemi (Nov 14, 2005 10:32 am)
#103 of 221 Re: upcoming vette [diablo_dude] by blkhemi Nov 14, 2005 (10:32 am)
Replying to: diablo_dude (Nov 13, 2005 8:32 pm) Haven't received an update on that rumor from insiders or Chevy.
#104 of 221 Auto vs. manual by starrow68 Nov 16, 2005 (11:17 am)
Can't add to the discussion since nothing I've read on Corvette specific boards seems to be addressing that possibility.   I can see that it would sell since even with the 6sp as standard for '05 the manual was in 60% of the deliveries which I understand given the demographics of the baby boom but just feel lucky that I still enjoy rowing the gears. Randy   Now, if xkss would quit posting pics that make me drool over the new keyboard on the portable I'd be able to get back to work.

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