C7 General Discussion General C7 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

C7 Z51 in new Motor Trend: Refined Tuning

Old 07-23-2013, 06:52 PM
  #21  
BlueOx
Race Director
 
BlueOx's Avatar
 
Member Since: Feb 2012
Posts: 10,776
Likes: 0
Received 6 Likes on 6 Posts
Default

Does the OP have screen grab software??
Old 07-23-2013, 06:52 PM
  #22  
yellowray
Instructor
 
yellowray's Avatar
 
Member Since: Jun 2013
Posts: 235
Likes: 0
Received 0 Likes on 0 Posts
Default

Only valid numbers between cars are same day tack, temp and humidity. I think those numbers are a good reference. What kind of 1/4 times you think it would get in Sacramento CA on a 112* day?
Old 07-23-2013, 06:57 PM
  #23  
RussM05
Melting Slicks
 
RussM05's Avatar
 
Member Since: Jun 2012
Location: Thomas Texas
Posts: 2,221
Received 1,012 Likes on 365 Posts

Default

Originally Posted by WhiteAndBlackC7
The 1/4 mile is a bit weak, right?? GM quoted 12 flat @ 119mph. I know there might be margins to adjust due to elevation/temp/etc. but I was really looking for 11.9ish @ 120 or better...
I don't think its weak at all. The ONLY valid test comparison is on the same track and on the same day.

Variables that affect a 1/4 time include: track prep at the starting line, DA (air temp/humidity/barametric pressure), and driver skill. I can see where a colder track could cause a slow launch easily accounting for the .2 sec / 2 mph variance.

I recall reading somewhere that magazine test drivers do not speed shift either.

Last edited by RussM05; 07-23-2013 at 07:03 PM.
Old 07-23-2013, 07:01 PM
  #24  
Durnberg
Racer
 
Durnberg's Avatar
 
Member Since: May 2013
Location: Homestead Florida
Posts: 272
Likes: 0
Received 0 Likes on 0 Posts
St. Jude Donor '13
Default

Originally Posted by C7 4 Me
I'll probably go ahead and order the mag tonight on my ipad then. Interested in reading the article
Just ordered the print and with order came the free iPad app offer. I got a temporary password. At the same point of entering the password you are also asked to enter whatever password you want to use, that brings you to a page where you can check on Motor Trend but asks you to pay for it again. I passed on that option and ended up with nothing for my results, called customer svs and was informed that the online costumer service is only open until 6 pm.

I started with print, maybe starting with iPad app to begin with you won't have these issues.
Old 07-23-2013, 07:04 PM
  #25  
Jesterissimo
Instructor
 
Jesterissimo's Avatar
 
Member Since: May 2013
Posts: 205
Likes: 0
Received 0 Likes on 0 Posts
Default

My ipad app hasn't updated yet with the issue. Still showing August as the newest. OP - which esubscription platform are you signed up on?
Old 07-23-2013, 07:19 PM
  #26  
yellowray
Instructor
 
yellowray's Avatar
 
Member Since: Jun 2013
Posts: 235
Likes: 0
Received 0 Likes on 0 Posts
Default

Nothing wrong with those numbers. You guys all know that favorite turn is different every day. Did someone drop some oil, did it rain & dry, Your eyes and instinct are your tools....well 99.999 %of the time.
Old 07-23-2013, 07:21 PM
  #27  
BLKTA
Burning Brakes
Thread Starter
 
BLKTA's Avatar
 
Member Since: Jul 2002
Posts: 789
Received 50 Likes on 35 Posts

Default

I use Zinio. What is a good free screen grabber software to download?
Old 07-23-2013, 07:46 PM
  #28  
BLKTA
Burning Brakes
Thread Starter
 
BLKTA's Avatar
 
Member Since: Jul 2002
Posts: 789
Received 50 Likes on 35 Posts

Default











Old 07-23-2013, 07:51 PM
  #29  
BlueOx
Race Director
 
BlueOx's Avatar
 
Member Since: Feb 2012
Posts: 10,776
Likes: 0
Received 6 Likes on 6 Posts
Default

Thanks for the screen grabs, BLKTA!!
Old 07-23-2013, 07:57 PM
  #30  
Jesterissimo
Instructor
 
Jesterissimo's Avatar
 
Member Since: May 2013
Posts: 205
Likes: 0
Received 0 Likes on 0 Posts
Default

BLKTA! If there were a smiley graphic for a Wayne's World style "we're not worthy!" bow I'd be using that
Old 07-23-2013, 07:59 PM
  #31  
yenko boy
Instructor
 
yenko boy's Avatar
 
Member Since: Dec 2012
Location: Florida
Posts: 121
Received 27 Likes on 9 Posts

Default

I know some are gonna cry about the weight but overall how can u not like where they have taken this new model. Did I read 40mpg highway............................
Old 07-23-2013, 07:59 PM
  #32  
mdiiulio
Burning Brakes
 
mdiiulio's Avatar
 
Member Since: Dec 2010
Location: SoCal
Posts: 1,149
Received 185 Likes on 110 Posts

Default

Thats what I'm talkin about, Thanks BLKTA!!
Old 07-23-2013, 08:03 PM
  #33  
X25
Sr.Random input generator
Support Corvetteforum!
 
X25's Avatar
 
Member Since: Jan 2008
Location: Sammamish, WA
Posts: 6,767
Received 1,463 Likes on 1,020 Posts

Default

The average lateral G is indeed very impressive. MotorTrend's Figure 8 reveals that it's not close to C6 Z06 yet, though:
Numbers v.s.'12 Z07 tested by MotorTrend:
Lateral G: 1.11g (v.s. 1.14g)
Figure 8: 23.9 secs (v.s. 22.8 secs).

Considering the Z06 w/Z07 tested had Cup ZP tires, the numbers of the C7 Z51 are very good.
Old 07-23-2013, 08:19 PM
  #34  
speedlink
Safety Car
 
speedlink's Avatar
 
Member Since: Apr 2007
Location: Southeast, WI
Posts: 4,531
Received 599 Likes on 373 Posts

Default

Thanks BLKTA! Excellent post. Looks like the curb weight of the Z51 is 3444#'s
Old 07-23-2013, 08:25 PM
  #35  
Laser Guided
Drifting
 
Laser Guided's Avatar
 
Member Since: Nov 2010
Location: san diego CA
Posts: 1,262
Received 69 Likes on 48 Posts

Default

Very impressive review and numbers. And to the people complaining about the 0-60 and 1/4... it's motortrend, they never get anywhere near the best acceleration times
Old 07-23-2013, 08:33 PM
  #36  
jimmyb
Race Director
 
jimmyb's Avatar
 
Member Since: Jan 2005
Location: NC
Posts: 13,934
Received 4,248 Likes on 2,023 Posts

Default

Originally Posted by ramey
well, remember 1.1 g's is not what it used to be...

on good hoosiers a C6z will see 1.49+ g's on good concrete. (any kind of banking of course sends those numbers up.

even on old normal daily driver tires will see 1.2 or more even on flat asphalt).

Just depends on conditions, track, etc. I expect that is a pretty good number for the small tires they are running.
PLEASE...show me "daily driver tires" that will give 1.2G's on ANY kind of asphalt.....

Jimmy
Old 07-23-2013, 08:45 PM
  #37  
DREAMERAK
Melting Slicks
 
DREAMERAK's Avatar
 
Member Since: Jun 2005
Posts: 2,216
Received 1 Like on 1 Post
St. Jude Donor '12-'13-'14, '16

Default

Originally Posted by WhiteAndBlackC7
The 1/4 mile is a bit weak, right?? GM quoted 12 flat @ 119mph. I know there might be margins to adjust due to elevation/temp/etc. but I was really looking for 11.9ish @ 120 or better...
The text says the test car only had 781 miles, maybe it needs to break in more?

Get notified of new replies

To C7 Z51 in new Motor Trend: Refined Tuning

Old 07-23-2013, 08:52 PM
  #38  
dcbingaman
Burning Brakes
 
dcbingaman's Avatar
 
Member Since: Jun 2013
Location: St. Louis MO
Posts: 1,193
Received 342 Likes on 207 Posts
Default

Originally Posted by DREAMERAK
The text says the test car only had 781 miles, maybe it needs to break in more?
Concur - the LS1/LS2/LS3 motors are tight for at least the first 1500 miles - if the LT1 acts the same, this puppy may gain 15-20 HP once it breaks in.

This makes GM's performance numbers very believable and probably conservative.
Old 07-23-2013, 08:54 PM
  #39  
Paulchristian
Melting Slicks
 
Paulchristian's Avatar
 
Member Since: Aug 2012
Posts: 3,170
Received 174 Likes on 121 Posts
Default

Originally Posted by BLKTA
The article's theme is how easy the C7 is to drive hard and comparing the different aspects to the C6.

I knew it !!!!

The only negative about the C6 was that it was a hard car to drive fast. As such, I was confident this was what GM would focus on...

Well...well...well...For those of you who have fought with me about this, and you know who you are,...I told you so. Read the article (slowly) and learn something. Good night.

Last edited by Paulchristian; 07-23-2013 at 08:58 PM.
Old 07-23-2013, 08:57 PM
  #40  
JerriVette
Race Director
 
JerriVette's Avatar
 
Member Since: Nov 2003
Location: Bergen county NJ
Posts: 15,822
Received 3,947 Likes on 2,177 Posts

Default

Awesome

Thread Tools
Search this Thread
Quick Reply: C7 Z51 in new Motor Trend: Refined Tuning



All times are GMT -4. The time now is 07:10 PM.