Motortrend A8 Review
Le Mans Master
Joined: Oct 2004
Posts: 9,217
Likes: 153
From: Ft Mill, SC
Agreed. Tadge says they are getting 3.6 and even some 3.5's, so to be conservative, they are going with 3.7. The quarter should be interesting with those lightning fast shifts. Imagine what the Z06 will do with this built tranny. A factory dialed in 650/650 motor with rapid fire tranny, PTM, and built drive train. When one puts their foot in it, that nose is gonna come up as it heads for the stratosphere. This is gonna be fun.
Le Mans Master
Joined: Sep 2004
Posts: 7,977
Likes: 1,823
From: North/Central NJ - a.k.a. Gotti in the CFNE section
St. Jude Donor '05
NEWSFLASH:
The only reason they "decided" to go with 3.7 when they saw 3.5 and 3.6 times is because there are SEVERAL years left of the C7 Stingray.... meaning... in 2016 when it gets a bump to 485 hp, or 500 hp, or whatever... they can tweak a couple things and then that "new model year" will be 3.5 0-60..... that's all.
Trust me... so far with the reviews I've read and all the new things the A8 can do... its going to be quicker than .1 quicker... many people at track and with vbox will achieve 3.4-3.5 0-60 times for sure.
Heck, Snorman got 3.6 with the A6...
The only reason they "decided" to go with 3.7 when they saw 3.5 and 3.6 times is because there are SEVERAL years left of the C7 Stingray.... meaning... in 2016 when it gets a bump to 485 hp, or 500 hp, or whatever... they can tweak a couple things and then that "new model year" will be 3.5 0-60..... that's all.
Trust me... so far with the reviews I've read and all the new things the A8 can do... its going to be quicker than .1 quicker... many people at track and with vbox will achieve 3.4-3.5 0-60 times for sure.
Heck, Snorman got 3.6 with the A6...
Drifting
Joined: Nov 2004
Posts: 1,489
Likes: 29
From: Georgia
Le Mans Master
Joined: Oct 2005
Posts: 5,038
Likes: 878
From: Tampa Florida
it's about friggen time some numbers were released.
but sounds like the published 1/4 mile time was guessed at???
(they simply removed the 0.1 quicker 0-60... from the previous 1/4 stat)?
one tenth is 100ms. how much time does that extra shift or two - in the quarter mile - comsume? I don't think that was added to the math.
i don't doubt the 0-60 is improved; but we need real world testing... not claims.
but sounds like the published 1/4 mile time was guessed at???
(they simply removed the 0.1 quicker 0-60... from the previous 1/4 stat)?
one tenth is 100ms. how much time does that extra shift or two - in the quarter mile - comsume? I don't think that was added to the math.
i don't doubt the 0-60 is improved; but we need real world testing... not claims.
Members are probably tired of me repeating myself or just maybe they don't believe some of the guys on the C7 FAST LIST. I did not believe the fast time on the C7's myself until I went to the track with my base model convertible. My car went 11.94@116.....however I have no idea what occurred on my 0-60. So by just reading some of the estimates, I feel that my car should be around 3.7 It is hard for me to believe that the A8 is going to do much better than that. The A6 is a pure 11 second in stock form and it does not take a skilled driver to accomplish this. Members here are expecting the A8 to be a pure 11 second car....hands down. By the way, the quickest time from a Magazine is 12.1 and that was an A6 convertible. The A8 would probably be a 12.0 car in the Magazines, which is still crazy fast. It is going to be very interesting to see what the members would accomplish in the 0-60 and 1/4. Just my .02
Last edited by Fore58; Aug 20, 2014 at 01:16 PM.
Drifting
Joined: Sep 2013
Posts: 1,336
Likes: 321
From: Indiana
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Drifting
Joined: Jul 2011
Posts: 1,377
Likes: 4
From: Rhode Island
NEWSFLASH:
The only reason they "decided" to go with 3.7 when they saw 3.5 and 3.6 times is because there are SEVERAL years left of the C7 Stingray.... meaning... in 2016 when it gets a bump to 485 hp, or 500 hp, or whatever... they can tweak a couple things and then that "new model year" will be 3.5 0-60..... that's all.
Trust me... so far with the reviews I've read and all the new things the A8 can do... its going to be quicker than .1 quicker... many people at track and with vbox will achieve 3.4-3.5 0-60 times for sure.
Heck, Snorman got 3.6 with the A6...
The only reason they "decided" to go with 3.7 when they saw 3.5 and 3.6 times is because there are SEVERAL years left of the C7 Stingray.... meaning... in 2016 when it gets a bump to 485 hp, or 500 hp, or whatever... they can tweak a couple things and then that "new model year" will be 3.5 0-60..... that's all.
Trust me... so far with the reviews I've read and all the new things the A8 can do... its going to be quicker than .1 quicker... many people at track and with vbox will achieve 3.4-3.5 0-60 times for sure.
Heck, Snorman got 3.6 with the A6...
I'm expecting a hp bump in the 2016 model year to keep things fresh. That's the thing in years past GM would come out with an all new model then do nothing to upgrade the vehicle during the generation. This is just not Corvette but other models like the suv's and trucks that need to be continuously updated to keep up with the competition.
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
According to Autoweeks report on this, they were on a raod-course type track. There was no dragstrip, nor christmas-tree timing beams. I'm taking it that the 0-60 and 1/4 mile times are from what they are being told (not from actual measurement that day). But, the roadcourse type environment showed promising feedback to the reviewers.
Sadly for me, I'm a straight-line-acceleration type dude. Oh well; I can enjoy the better MPG.
Sadly for me, I'm a straight-line-acceleration type dude. Oh well; I can enjoy the better MPG.
Pro
Joined: Oct 2012
Posts: 670
Likes: 85
I have read this article and checked the specs. The base model has a 2.41 axle ratio while the Z51 has 2.73. Nowhere in the tests is it specified which axle is used for the acceleration times or whether the fuel economy is achieved with the same ratio. GM brags about 8% fuel economy improvement but we really need to know what the economy is for each axle ratio. They cannot be the same.
http://www.autoblog.com/2014/08/20/2...eed-automatic/
"UPDATE: After reaching out to Chevy PR for clarification, we now know that the 16/29/20 City/Highway/Combined mile-per-gallon ratings are for the standard Corvette with the new eight-speed transmission, while the 0-60 and quarter-mile times are for the Z51-equipped car using the new trans. The company does not yet have mpg estimates for the Z51/8AT combination. "
Pro
Joined: Jun 2014
Posts: 722
Likes: 274
From: Colorado Springs, CO
They are not the same according to this updated Autoblog article:
http://www.autoblog.com/2014/08/20/2...eed-automatic/
"UPDATE: After reaching out to Chevy PR for clarification, we now know that the 16/29/20 City/Highway/Combined mile-per-gallon ratings are for the standard Corvette with the new eight-speed transmission, while the 0-60 and quarter-mile times are for the Z51-equipped car using the new trans. The company does not yet have mpg estimates for the Z51/8AT combination. "
http://www.autoblog.com/2014/08/20/2...eed-automatic/
"UPDATE: After reaching out to Chevy PR for clarification, we now know that the 16/29/20 City/Highway/Combined mile-per-gallon ratings are for the standard Corvette with the new eight-speed transmission, while the 0-60 and quarter-mile times are for the Z51-equipped car using the new trans. The company does not yet have mpg estimates for the Z51/8AT combination. "
The fuel economy in the past was always the same for perf axel or standard. I would assume the Z51 is what the EPA numbers are rated on and the standard will do a little bit better. I base this on the fact that Z51s represent at least 55% of production. The manufacture has to use the higher production models.As far as 0-60 and 1/4 mile both should be close. The Z51 has an extra shift in the 1/4 mile.
Le Mans Master
Joined: Nov 2004
Posts: 5,885
Likes: 371
From: Cape Coral FL
This new trans sounds awesome, The current A6 with Z51 what gear are you in when you cross the finish line in the qtr? Also does anyone know or have an idea what gear we will be in with the new A8 in the qtr? Just curious. will the Z06 A8 have different internals? Do we know what kind of power/tq the A8 in the Stingray can handle?Thanks in advance.
Last edited by DRLC5; Aug 20, 2014 at 02:44 PM.
Safety Car
Joined: Feb 2011
Posts: 4,205
Likes: 21
From: Arlington VA
The A8 does provide a real world 1.5mpg hwy improvement over the A6. It is almost exactly a 1-2mpg increase that was predicted by many. That 5% achievement in fuel economy was also done in Tour mode, while the A6's less measurement was done in Eco mode, which means the difference may be even greater than 5% in Eco mode. Even better.. GM is still tuning the transmission and expects the A8 equipped C7 to be rated at 30mpg in Tour mode for the 2016MY.. with the Eco mode being rated well into the 30's.
"The end result is a Stingray that is up to five percent better on GM’s highway fuel economy test cycles in Tour mode (not Eco mode). That means 29 mpg — or 29.4932 mpg, if you want to get exact — compared to this year’s 28 mpg EPA rating. “We have an Eco mode in the car, and you have an Eco mode on the label, but we expect more people to drive in Tour, Sport, Track, so we label the car based on the Tour mode,” explained Juechter. He says that with additional fine tuning and testing, they’ll get to 30, no problem. “We’re going into production, so we don’t have time to tweak or retest for this year, so we’re going in with a 29 (mpg) label. In Eco Mode, it would do solidly in the 30s. And probably next year, we’ll come back and tweak the calibration of the transmission to (officially) get to 30 miles per gallon. In Corvettes, you can actually get the number that’s on the label.” Still, as is sits, that means it’s as efficient as its EPA-rated 2015 counterpart having a seven-speed manual."
Last edited by Daekwan06; Aug 20, 2014 at 03:43 PM.
Racer
Joined: May 2011
Posts: 437
Likes: 82
This information makes it even more difficult to wait for my car.
"the 8L90-equipped Stingray is quickest Corvette in a straight line (until the Z06 arrives) with a 0-60 mph dash in 3.7 seconds and quarter-mile run 11.9 seconds (no word on trap speed). Added Juechter: “(Those times) should be easily replicated. We’ve had cars in the 3.6s — even some cars in the 3.5s, but we’re going to market with the 3.7 as the performance (figure).”
Never too old to enjoy a Corvette.
If I was worried about gas mileage, I would buy a Honda.
"the 8L90-equipped Stingray is quickest Corvette in a straight line (until the Z06 arrives) with a 0-60 mph dash in 3.7 seconds and quarter-mile run 11.9 seconds (no word on trap speed). Added Juechter: “(Those times) should be easily replicated. We’ve had cars in the 3.6s — even some cars in the 3.5s, but we’re going to market with the 3.7 as the performance (figure).”
Never too old to enjoy a Corvette.
If I was worried about gas mileage, I would buy a Honda.
Last edited by Old buckeye; Aug 20, 2014 at 03:49 PM.
Race Director
Joined: Jan 2000
Posts: 12,375
Likes: 406
From: Florida
NEWSFLASH:
The only reason they "decided" to go with 3.7 when they saw 3.5 and 3.6 times is because there are SEVERAL years left of the C7 Stingray.... meaning... in 2016 when it gets a bump to 485 hp, or 500 hp, or whatever... they can tweak a couple things and then that "new model year" will be 3.5 0-60..... that's all.
Trust me... so far with the reviews I've read and all the new things the A8 can do... its going to be quicker than .1 quicker... many people at track and with vbox will achieve 3.4-3.5 0-60 times for sure.
Heck, Snorman got 3.6 with the A6...
The only reason they "decided" to go with 3.7 when they saw 3.5 and 3.6 times is because there are SEVERAL years left of the C7 Stingray.... meaning... in 2016 when it gets a bump to 485 hp, or 500 hp, or whatever... they can tweak a couple things and then that "new model year" will be 3.5 0-60..... that's all.
Trust me... so far with the reviews I've read and all the new things the A8 can do... its going to be quicker than .1 quicker... many people at track and with vbox will achieve 3.4-3.5 0-60 times for sure.
Heck, Snorman got 3.6 with the A6...
Jukebox Graduate
Joined: Jun 2014
Posts: 857
Likes: 3
From: Saint Louis MO
I always confirm such things before I react. Here is the paragraph in question from the review.
We know, we know. Manuals rule. Automatics drool. It’s one of the core arguments among the purest of the purists. But for GM and its crown jewel, the Corvette Stingray, this dispute is not if an automatic will be offered, but rather, which automatic will be offered. Facts are facts: 63% of the 37,000-plus 2014 Corvettes sold had a six-speed automatic. The rest, well, you know what they had.
Read more: http://www.motortrend.com/roadtests/...#ixzz3Axq0gPUw
Read more: http://www.motortrend.com/roadtests/...#ixzz3Axq0gPUw
Le Mans Master
Joined: Oct 2004
Posts: 9,217
Likes: 153
From: Ft Mill, SC
This information makes it even more difficult to wait for my car.
"the 8L90-equipped Stingray is quickest Corvette in a straight line (until the Z06 arrives) with a 0-60 mph dash in 3.7 seconds and quarter-mile run 11.9 seconds (no word on trap speed). Added Juechter: “(Those times) should be easily replicated. We’ve had cars in the 3.6s — even some cars in the 3.5s, but we’re going to market with the 3.7 as the performance (figure).”
Never too old to enjoy a Corvette. If I was worried about gas mileage, I would buy a Honda.
"the 8L90-equipped Stingray is quickest Corvette in a straight line (until the Z06 arrives) with a 0-60 mph dash in 3.7 seconds and quarter-mile run 11.9 seconds (no word on trap speed). Added Juechter: “(Those times) should be easily replicated. We’ve had cars in the 3.6s — even some cars in the 3.5s, but we’re going to market with the 3.7 as the performance (figure).”
Never too old to enjoy a Corvette.
If I was worried about gas mileage, I would buy a Honda.
Thread Starter
Instructor
Joined: Sep 2013
Posts: 116
Likes: 0
Instead of laughing. Maybe you should be reading. Looks like the joke is on you.
The A8 does provide a real world 1.5mpg hwy improvement over the A6. It is almost exactly a 1-2mpg increase that was predicted by many. That 5% achievement in fuel economy was also done in Tour mode, while the A6's less measurement was done in Eco mode, which means the difference may be even greater than 5% in Eco mode. Even better.. GM is still tuning the transmission and expects the A8 equipped C7 to be rated at 30mpg in Tour mode for the 2016MY.. with the Eco mode being rated well into the 30's.
"The end result is a Stingray that is up to five percent better on GM’s highway fuel economy test cycles in Tour mode (not Eco mode). That means 29 mpg — or 29.4932 mpg, if you want to get exact — compared to this year’s 28 mpg EPA rating. “We have an Eco mode in the car, and you have an Eco mode on the label, but we expect more people to drive in Tour, Sport, Track, so we label the car based on the Tour mode,” explained Juechter. He says that with additional fine tuning and testing, they’ll get to 30, no problem. “We’re going into production, so we don’t have time to tweak or retest for this year, so we’re going in with a 29 (mpg) label. In Eco Mode, it would do solidly in the 30s. And probably next year, we’ll come back and tweak the calibration of the transmission to (officially) get to 30 miles per gallon. In Corvettes, you can actually get the number that’s on the label.” Still, as is sits, that means it’s as efficient as its EPA-rated 2015 counterpart having a seven-speed manual."
The A8 does provide a real world 1.5mpg hwy improvement over the A6. It is almost exactly a 1-2mpg increase that was predicted by many. That 5% achievement in fuel economy was also done in Tour mode, while the A6's less measurement was done in Eco mode, which means the difference may be even greater than 5% in Eco mode. Even better.. GM is still tuning the transmission and expects the A8 equipped C7 to be rated at 30mpg in Tour mode for the 2016MY.. with the Eco mode being rated well into the 30's.
"The end result is a Stingray that is up to five percent better on GM’s highway fuel economy test cycles in Tour mode (not Eco mode). That means 29 mpg — or 29.4932 mpg, if you want to get exact — compared to this year’s 28 mpg EPA rating. “We have an Eco mode in the car, and you have an Eco mode on the label, but we expect more people to drive in Tour, Sport, Track, so we label the car based on the Tour mode,” explained Juechter. He says that with additional fine tuning and testing, they’ll get to 30, no problem. “We’re going into production, so we don’t have time to tweak or retest for this year, so we’re going in with a 29 (mpg) label. In Eco Mode, it would do solidly in the 30s. And probably next year, we’ll come back and tweak the calibration of the transmission to (officially) get to 30 miles per gallon. In Corvettes, you can actually get the number that’s on the label.” Still, as is sits, that means it’s as efficient as its EPA-rated 2015 counterpart having a seven-speed manual."
Melting Slicks
Joined: Nov 2013
Posts: 2,016
Likes: 73
From: Texas
Well, since forum member Snorman has done validated 0-60 in 3.5 to 3.6 sec, it would appear that the A8, though most likely an excellent transmission, won’t be significantly faster accelerating.
Tadge is talking about 11.9 sec quartermile times, some car rags have gotten the same numbers with the A6 and again Snorman is well below 11.9.
If I could have had the A8 when I got mine I would have but I don’t think I will have reasons to be unhappy that it isn’t in my car. Don
Tadge is talking about 11.9 sec quartermile times, some car rags have gotten the same numbers with the A6 and again Snorman is well below 11.9.
If I could have had the A8 when I got mine I would have but I don’t think I will have reasons to be unhappy that it isn’t in my car. Don