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C6 ZO6 vs C7 Grand Sport head to head

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Old 11-16-2017, 02:46 PM
  #21  
Bill Dearborn
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LT1 has the same torque and horsepower curve as the LS7 up to 4K rpm. In the Z51/GS format it is also supported by different transmission gear ratios so acceleration through the first 3 gears is very similar to the C6Z with the LS7 despite the C7 being about 200 lbs heavier than the C6Z. Most inexperienced drivers get into trouble with any C5/C6/C7 at far less than 4K rpms as they can't handle the off idle/low rpm high torque generated by any of these engines (LS6, LS2, LS3, LS7, LT1 and LT4. As far as handling all of them handle fairly similar and can get around a corner very well. The C7s are better due to suspension differences, better aero down force and PTM. A number of people worry about powering out of a corner but never even think about powering into the corner and what trying to carry too much speed into the corner does to exit speed when the driver can't get back on the throttle soon enough and loses the drag race down the next straight. Set up the entrance correctly and the exit is a hell of a lot easier with little side slip of the rear and the ability to go wide open sooner. The C7 wide body cars have lots of Aero that lets you get through that corner at a higher speed. The aero bites you further down the straight when it starts to impede acceleration at higher speeds but it gives you the initial launch down the straight on the drag strip portion of a road course.

Bill
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Old 11-16-2017, 02:47 PM
  #22  
village idiot
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Originally Posted by Bill Dearborn
LT1 has the same torque and horsepower curve as the LS7 up to 4K rpm. In the Z51/GS format it is also supported by different transmission gear ratios so acceleration through the first 3 gears is very similar to the C6Z with the LS7 despite the C7 being about 200 lbs heavier than the C6Z. Most inexperienced drivers get into trouble with any C5/C6/C7 at far less than 4K rpms as they can't handle the off idle/low rpm high torque generated by any of these engines (LS6, LS2, LS3, LS7, LT1 and LT4. As far as handling all of them handle fairly similar and can get around a corner very well. The C7s are better due to suspension differences, better aero down force and PTM. A number of people worry about powering out of a corner but never even think about powering into the corner and what trying to carry too much speed into the corner does to exit speed when the driver can't get back on the throttle soon enough and loses the drag race down the next straight. Set up the entrance correctly and the exit is a hell of a lot easier with little side slip of the rear and the ability to go wide open sooner. The C7 wide body cars have lots of Aero that lets you get through that corner at a higher speed. The aero bites you further down the straight when it starts to impede acceleration at higher speeds but it gives you the initial launch down the straight on the drag strip portion of a road course.

Bill
Unfortunately, we're not below 4k very often on the track.

and I'm not sure I follow with the powering into a corner. I am very rarely on throttle in turn in.

Last edited by village idiot; 11-16-2017 at 02:49 PM.
Old 11-16-2017, 08:28 PM
  #23  
RFZ
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Originally Posted by Bill Dearborn
LT1 has the same torque and horsepower curve as the LS7 up to 4K rpm. In the Z51/GS format it is also supported by different transmission gear ratios so acceleration through the first 3 gears is very similar to the C6Z with the LS7 despite the C7 being about 200 lbs heavier than the C6Z. Most inexperienced drivers get into trouble with any C5/C6/C7 at far less than 4K rpms as they can't handle the off idle/low rpm high torque generated by any of these engines (LS6, LS2, LS3, LS7, LT1 and LT4. As far as handling all of them handle fairly similar and can get around a corner very well. The C7s are better due to suspension differences, better aero down force and PTM. A number of people worry about powering out of a corner but never even think about powering into the corner and what trying to carry too much speed into the corner does to exit speed when the driver can't get back on the throttle soon enough and loses the drag race down the next straight. Set up the entrance correctly and the exit is a hell of a lot easier with little side slip of the rear and the ability to go wide open sooner. The C7 wide body cars have lots of Aero that lets you get through that corner at a higher speed. The aero bites you further down the straight when it starts to impede acceleration at higher speeds but it gives you the initial launch down the straight on the drag strip portion of a road course.

Bill
above 4k is where it is really apparent you dont have an ls7. love my gs but the difference between 4-7k rpm is really disheartening. gs with 530 hp would be awesome.
Old 11-16-2017, 09:17 PM
  #24  
2cnd Chance
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Originally Posted by RFZ
above 4k is where it is really apparent you dont have an ls7. love my gs but the difference between 4-7k rpm is really disheartening. gs with 530 hp would be awesome.
http://www.gmperformancemotor.com/parts/19333525.html
Old 11-16-2017, 09:30 PM
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BRCC
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VIR best lap times, 2017 GS 2:47.1, 2012 ZR1 2:50.7, 2011 Z06 2:53.5, 2014 Stingray 2:53.8, published in Car & Driver Oct 2017

Last edited by BRCC; 11-16-2017 at 09:37 PM.
Old 11-16-2017, 11:07 PM
  #26  
JerriVette
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These cars are all very safe. Both should be easily controllable unless the tires are bald or the alignment is off..

What you are describing in the c6 z06 sounds like bald tires, cold weather or a bad alignment.

Anyone of those could create a corvette z06 that feels twitchy.

Buy a Grand sport with confidence.
Old 11-17-2017, 08:38 AM
  #27  
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have been looking at that.....if i mod that would be what i would do....
Old 11-17-2017, 09:19 AM
  #28  
LoganExplosion
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Originally Posted by BRCC
VIR best lap times, 2017 GS 2:47.1, 2012 ZR1 2:50.7, 2011 Z06 2:53.5, 2014 Stingray 2:53.8, published in Car & Driver Oct 2017
He's got cards made with these numbers to hand out. Quick draw style. "SEEEE?!! I DON'T NEED WIDEBODY! I'M STILL COOL!"
Old 11-17-2017, 10:37 AM
  #29  
pdiddy972
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Originally Posted by 16/C7Z
torque curve and peak so different. You could flat foot a new GS and barely get a tire squeal.
Not a chance. Try pushing the button on the armrest (drive mode control) once to turn off traction control and try that. I just spun all the way through first gear last night doing that. No way anyone can flat foot a 2017/2018 GS with traction control off and not be blowing off the tires.
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Old 11-17-2017, 07:29 PM
  #30  
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Originally Posted by LoganExplosion
He's got cards made with these numbers to hand out. Quick draw style. "SEEEE?!! I DON'T NEED WIDEBODY! I'M STILL COOL!"
The track was repaved in between the runs. The C7GS isn't 3 and 6 seconds faster than the C6 Zr1 and C6Z06 respectively. It's definitely not even faster than the ZR1.
Old 11-18-2017, 11:08 AM
  #31  
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Probably it's a great dilemma. The GS has been praised highly by most auto magazines especially by MT, and the same Guys mention that is hard to put the Z06's power to the ground, but the new Camaro ZL1 has the same 650 HP and they don't stop praising it, because of the powertrain/chassis/suspension combination. Would GS owners miss the Z06 power?



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