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Track lap times 2017 Grand Sport vs Z06

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Old 07-26-2017, 10:58 PM
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joe matelsky
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Default Track lap times 2017 Grand Sport vs Z06

better lap times in 2017 Grand Sport or Z06?
seeing lots of new grand sports at the tracks this summer...
Old 07-26-2017, 11:58 PM
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vbdenny
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They said at Spring Mountain that the GS times were nearly as good as the Z06 especially in wet conditions. In dry, I could see the Z06 pull me on the straights. Not huge but more horsepower on the track is certainly preferred
Old 07-27-2017, 12:17 AM
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23/C8Z
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Of course.

No need for that extra 190hp or monster torque advantage coming out of the turns. Should be just about equal...

just like saying a car of similar weight, aero and design with only 270hp runs about as good as a C7 GS around a track.

sounds more like driver's not getting the most out of the car. Pretty sure better drivers are getting much more out of the Z06 than a GS in Every situation M7 Z06 to M7 or A8 GS. A8 Z06 weather dependent results.

the times are all over the mags and web. Along with plenty of video. It's Z51 GS Z06 and at some point will undoubtedly be ZR1.
Old 07-27-2017, 01:07 AM
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rb185afm
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If it's not a HP track the Z has a tougher time stretching its legs. All things equal the Z06 is capable of a faster lap no doubt. But out in CA, with track temps often in the triple digits, supercharged cars hate life. NA is just better for any serious track use.

Last edited by rb185afm; 07-27-2017 at 01:07 AM.
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Old 07-27-2017, 01:21 AM
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Bill Dearborn
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The Stingray Z51, C7Z06, C7GS can all pull similar lap times when driven by most of us. Power doesn't help a damned bit getting around a corner and if not used properly can actually slow a lower performing driver who doesn't know how to handle the extra power.

Bill
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Old 07-27-2017, 01:33 AM
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sunsalem
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Originally Posted by Bill Dearborn
Power doesn't help a damned bit getting around a corner.

Bill
Not exactly...torque (power, in this case) helps getting OUT of a corner more quickly and back on the gas.
HP helps getting TO a corner more quickly.
Old 07-27-2017, 08:01 AM
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joe matelsky
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On a track like LIME ROCK, seems like the Z is just too much power....for intermediate drivers the GS seemed smoother and quicker
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Old 07-27-2017, 11:01 AM
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sunsalem
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IMO, Lime Rock is a club track, not a proper racetrack.
It's barely a mile long.
The C7.R can do it in 50 seconds.
Old 07-27-2017, 11:19 AM
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l2vette
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Originally Posted by sunsalem
IMO, Lime Rock is a club track, not a proper racetrack.
It's barely a mile long.
The C7.R can do it in 50 seconds.
Not true.
Lime Rock = 1.5 miles
Old 07-27-2017, 11:32 AM
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djnice
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That's short, I complain about our 2.25 mi being too short.
Old 07-27-2017, 04:26 PM
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sunsalem
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Originally Posted by l2vette
Not true.
Lime Rock = 1.5 miles
You're right...IMSA lists it at 1.474
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Old 07-27-2017, 06:42 PM
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BrunoTheMellow
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The z06 will be faster with the same driver until it starts pulling timing. Here is an example from car and driver's lightning lap:

Historical Lap Times
RANK CLASS CAR TIME
1
LL5
2015 Porsche 918 Spyder
2:43.1
2
CONCEPT CAR
2016 Lexus RC F GT Concept
2:43.2
3
LL4
2016 Dodge Viper ACR
2:44.2
4
LL3
2015 Chevrolet Corvette Z06
2:44.6
5
LL5
2016 Ferrari 488GTB
2:45.1
6
LL5
2015 McLaren 650S Spider
2:45.8
7
LL5
2009 Mosler MT900S
2:45.9
8
LL4
2016 Porsche 911 GT3 RS
2:47.0
9
LL3
2017 Chevrolet Corvette Grand Sport
2:47.1
10
LL4
2016 McLaren 570S
2:47.4
11
LL5
2015 Lamborghini Huracán LP610-4
2:47.5
12
LL3
2008 Dodge Viper SRT10 ACR coupe
2:48.6
13
LL4
2015 Nissan GT-R NISMO
2:49.4
14
LL5
2012 Mosler Photon
2:49.8
15
LL4
2014 SRT Viper TA
2:49.9
16
LL4
2012 Ferrari 458 Italia
2:49.9
17
LL4
2017 Acura NSX
2:50.2
18
LL4
2015 Porsche 911 GT3
2:50.4
19
LL3
2012 Chevrolet Corvette ZR1
2:50.7
20
LL5
2014 Ferrari F12berlinetta
2:50.8
21
LL3
2015 Chevrolet Camaro Z/28
2:50.9
22
LL4
2016 Mercedes-AMG GT S
2:51.0
23
LL4
2014 Porsche 911 Turbo S
2:51.2
24
LL2
2016 Ford Mustang Shelby GT350R
2:51.8
25
LL5
2010 Lamborghini Gallardo LP570-4 Superleggera
2:51.8
26
LL3
2009 Chevrolet Corvette ZR1
2:51.8
27
KIT CAR
2009 KTM X-Bow
2:52.3
28
LL4
2016 BMW M4 GTS
2:52.9
29
LL3
2012 Nissan GT-R
2:53.2
30
LL3
2011 Chevrolet Corvette Z06
2:53.5
31
LL2
2014 Chevrolet Corvette Stingray
2:53.8

Last edited by BrunoTheMellow; 07-27-2017 at 06:42 PM.
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Old 07-27-2017, 08:55 PM
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stevebz06
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Originally Posted by sunsalem
Not exactly...torque (power, in this case) helps getting OUT of a corner more quickly and back on the gas.
HP helps getting TO a corner more quickly.
Horsepower is nothing more than torque corrected for rpm. If cars had been invented in the Middle East, maybe we would be discussing Camel Power. Because horsepower is derived by multiplying torque by rpm and then dividing by 5252, horsepower will continue to climb while torque is decreasing, but it is still just torque.
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Old 07-27-2017, 09:09 PM
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2cnd Chance
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Default So He Was Absolutely Correct

Originally Posted by sunsalem
Not exactly...torque (power, in this case) helps getting OUT of a corner more quickly and back on the gas.
HP helps getting TO a corner more quickly.
Lol!
.
Old 07-27-2017, 09:28 PM
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Gary2KC5
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What I would be interested in is a comparison of lap times between the C7 Z06 at the beginning of a session versus the end when the SC has some heat into it.

At what point does it start loosing power? 15 minutes, 20? or can it go a full 30 minutes.
Old 07-27-2017, 09:43 PM
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MitchAlsup
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Originally Posted by Bill Dearborn
T Power doesn't help a damned bit getting around a corner and if not used properly can actually slow a lower performing driver who doesn't know how to handle the extra power.
Back when I was a driving (HPDE) instructor, we had a saying:: "What is the fastest way to slow a poor driver down?"

Answer:: "Give him another 100 HP !"
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Old 07-27-2017, 09:51 PM
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2cnd Chance
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The Z06/7 will be faster than the GS/Z07. What I'd find interesting is comparing a GS/Z07 to a Z06 non Z07. Does better handling and braking trump the added 190 HP?

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Old 07-27-2017, 10:05 PM
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Gary2KC5
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To Quote BrunoTheMellow (without the large graphic)...

"The z06 will be faster with the same driver until it starts pulling timing. Here is an example from car and driver's lightning lap:"

when/why does it pull timing? is this a result of the SC getting hot?
Old 07-27-2017, 10:44 PM
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BrunoTheMellow
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Originally Posted by Gary2KC5
To Quote BrunoTheMellow (without the large graphic)...

"The z06 will be faster with the same driver until it starts pulling timing. Here is an example from car and driver's lightning lap:"

when/why does it pull timing? is this a result of the SC getting hot?
Yes, but not easily. You'd need a very hot day to make up the difference but it will probably overheat before getting slow enough.

Last edited by BrunoTheMellow; 07-27-2017 at 10:44 PM.
Old 07-27-2017, 10:48 PM
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djnice
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Originally Posted by 2cnd Chance
The Z06/7 will be faster than the GS/Z07. What I'd find interesting is comparing a GS/Z07 to a Z06 non Z07. Does better handling and braking trump the added 190 HP?
Yes that would be interesting and they are probably close to equal, but still you can throw more money at any car and get better performance. Money is better spent on driver training though.


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