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Over Under Z06 ring time

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Old 08-16-2021, 01:29 PM
  #21  
Iker
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Originally Posted by Jim Mero
Hey there keagan,

So, taking into consideration several things,

· The first and foremost new tires, I know that Lee Willard is a tire design genius. Whatever cup tires are on the C8 Z06, comparing them to the Cup 2 tires that were designed and developed by Lee and myself in 2013, seven years of tire design and advanced technology should result in an incredible tire for the C8 Z06. I would venture to estimate a lap time improvement of 8 to 10 seconds just based on tires.

· The second would be the DCT. More available gears to keep the horsepower and torque in the peak power band throughout the lap and lightning quick shifts.

· Better and more advanced performance traction algorithms. I did not use performance traction for every fast lap I did through the C7 Z06. I did embrace it on the C7 ZR1, having to do it over, I might’ve run the ZR1 the same way I ran everything else.

· I don’t know the horsepower of the new Z06 but keeping up with the horsepower gain throughout the generations, I see no reason to C8 Z06 would be any different.

· And of course, the driver. I do not know if they are going to have Oliver Gavin drive again. But now there is an engineer on the Corvette I feel would be just as fast, if not faster. His name is Bill Wise, he drove the 7:16 Camaro ZL1 1LE a few years ago.

Summing it all up, based on my armchair analysis, which actually has been pretty good in the past, I see no reason the car shouldn’t be 12 to 14 seconds faster than the 7:10 I ran in the C7 Z06.

The opportunity to have the Corvette be the first American car under seven minutes would be a significant achievement. I know, I’ve been there…….

Thank you, Jim
It is nice to hear this opinion from you as expert engineer who has a good and long history behind the corvette’s wheel.

Why did you chose the Z06’s ring lap time (7:10s) to start with not the ZR1’s lap time?
I know LT5 has much more HP/torque but I believe the flat higher RPM power/torque curves combined with the optimal gear ratio multiplication with better heat management (than the supercharged engines) in addition to the efficient way of delivering power to the track surface will outperform the big LT5 hp/torque numbers. What do you think?

For me, I see no reason the car shouldn’t be 8-10 seconds faster than the 6:57s (segmented time) you ran in the C7 ZR1.

Thank you

Last edited by Iker; 08-16-2021 at 01:48 PM.
Old 08-16-2021, 02:21 PM
  #22  
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Originally Posted by Iker
It is nice to hear this opinion from you as expert engineer who has a good and long history behind the corvette’s wheel.

Why did you chose the Z06’s ring lap time (7:10s) to start with not the ZR1’s lap time?
I know LT5 has much more HP/torque but I believe the flat higher RPM power/torque curves combined with the optimal gear ratio multiplication with better heat management (than the supercharged engines) in addition to the efficient way of delivering power to the track surface will outperform the big LT5 hp/torque numbers. What do you think?

For me, I see no reason the car shouldn’t be 8-10 seconds faster than the 6:57s (segmented time) you ran in the C7 ZR1.

Thank you
Well for starters 720HP is 720HP. Ring can use the HP as it has some long straights. Given the climate there, I doubt the heat soak would be huge thing. It will be a thing but at 120mph you are pushing alot of air over coolers. I predict 6:56 or higher.
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Old 08-16-2021, 02:33 PM
  #23  
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My guess is 7:00:00 but there will be no official lap by GM; the time will be an independent party.
Old 08-16-2021, 03:35 PM
  #24  
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Originally Posted by JPMD
Road & Track reporting aero will be active (front & rear) but spy shots alone make it impossible to know for sure.

https://www.roadandtrack.com/news/a3...-proto-photos/

Any test videos showing active aero?
Active aero along with Cup 2Rs should make it faster than 6:54 or faster
They could be going the route of Lamborghini with ALA. They engineer the aero to flex in specific directions based on speed ...it's what the Huracan Performante and the SVJ use so there is a case for it being good. I doubt GM engineers couldn't concoct a similar aero solution.

Last edited by Supermassive; 08-16-2021 at 03:38 PM.
Old 08-16-2021, 03:47 PM
  #25  
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Originally Posted by JG853
You are right - I keep forgetting this. I will go with 6:58.
In reviewing a few items regarding the 488 Pista, which I believe was a 7:00 or 7:01 ring time, I am going back to my 7:05 mark.
Old 08-23-2021, 09:17 AM
  #26  
keagan
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Originally Posted by Jim Mero
Hey there keagan,

So, taking into consideration several things,

· The first and foremost new tires, I know that Lee Willard is a tire design genius. Whatever cup tires are on the C8 Z06, comparing them to the Cup 2 tires that were designed and developed by Lee and myself in 2013, seven years of tire design and advanced technology should result in an incredible tire for the C8 Z06. I would venture to estimate a lap time improvement of 8 to 10 seconds just based on tires.

· The second would be the DCT. More available gears to keep the horsepower and torque in the peak power band throughout the lap and lightning quick shifts.

· Better and more advanced performance traction algorithms. I did not use performance traction for every fast lap I did through the C7 Z06. I did embrace it on the C7 ZR1, having to do it over, I might’ve run the ZR1 the same way I ran everything else.

· I don’t know the horsepower of the new Z06 but keeping up with the horsepower gain throughout the generations, I see no reason to C8 Z06 would be any different.

· And of course, the driver. I do not know if they are going to have Oliver Gavin drive again. But now there is an engineer on the Corvette I feel would be just as fast, if not faster. His name is Bill Wise, he drove the 7:16 Camaro ZL1 1LE a few years ago.

Summing it all up, based on my armchair analysis, which actually has been pretty good in the past, I see no reason the car shouldn’t be 12 to 14 seconds faster than the 7:10 I ran in the C7 Z06.

The opportunity to have the Corvette be the first American car under seven minutes would be a significant achievement. I know, I’ve been there…….

Thank you, Jim
Thank you for taking the time to respond Mr. Mero. Your 12-14 second prediction would put it right in line with my 6:58 guess. I hope they do let Bill or Gavin drive if they do decide to publish anything. The track has since gone under some resurfacing, correct? If you had to guess, how much seconds more would be gained from that?
Old 08-23-2021, 09:37 AM
  #27  
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If we don't get a time from GM, we'll get one from SportAuto. Good enough for me. They have their own database of times to compare against and it ensures no manufacturer 'ring mods.'

Last edited by Robert R1; 08-23-2021 at 09:47 AM.
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Old 08-23-2021, 11:29 PM
  #28  
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Originally Posted by Jim Mero
Hey there keagan,


·Of course, the driver. I do not know if they are going to have Oliver Gavin drive again. But now there is an engineer on the Corvette I feel would be just as fast, if not faster. His name is Bill Wise, he drove the 7:16 Camaro ZL1 1LE a few years ago.

Summing it all up, based on my armchair analysis, which actually has been pretty good in the past, I see no reason the car shouldn’t be 12 to 14 seconds faster than the 7:10 I ran in the C7 Z06.

The opportunity to have the Corvette be the first American car under seven minutes would be a significant achievement. I know, I’ve been there…….

Thank you, Jim
Bill Wise's Ring Lap in the Camaro ZL1 1LE (link below) remains one of the most epic bits of driving I have ever seen. Half the time I simply did not believe what I was seeing. Yes, Oliver Gavin's background speaks for itself but I would very much like to see Bill Wise wheel the C8 Z06 for this and any other runs. Agree with you 100% on that.

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Old 08-23-2021, 11:36 PM
  #29  
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Originally Posted by Bwright
Bill Wise's Ring Lap in the Camaro ZL1 1LE (link below) remains one of the most epic bits of driving I have ever seen. Half the time I simply did not believe what I was seeing. Yes, Oliver Gavin's background speaks for itself but I would very much like to see Bill Wise wheel the C8 Z06 for this and any other runs. Agree with you 100% on that.

https://www.youtube.com/watch?v=t4zSIVpVMaw

Have never seen that Video before...just WOW!
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Old 08-24-2021, 02:08 AM
  #30  
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Originally Posted by Bwright
Bill Wise's Ring Lap in the Camaro ZL1 1LE (link below) remains one of the most epic bits of driving I have ever seen. Half the time I simply did not believe what I was seeing. Yes, Oliver Gavin's background speaks for itself but I would very much like to see Bill Wise wheel the C8 Z06 for this and any other runs. Agree with you 100% on that.

https://www.youtube.com/watch?v=t4zSIVpVMaw
His lap is pure violence. Wish we could have seen his 7:10 lap!
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Old 08-24-2021, 02:37 AM
  #31  
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This is a neat counterpoint to the ZL1/1LE…. Note in the final straight section 192 mph…..The Z06/Z07 is not the lithe and scalpel like tool the Pista is. I feel a production GT2RS is not either…but damned close. I’m not capable of letting my car go this fast even in someone else’s hands. It’s a neat number, but it’s just a number achievable by a special person.

Last edited by international blue; 08-24-2021 at 02:44 AM.
Old 08-24-2021, 10:13 AM
  #32  
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Originally Posted by ZRacerLE
His lap is pure violence. Wish we could have seen his 7:10 lap!
He did an unofficial 7:10? If so, do you have a link to where that was mentioned? Would love to reference that in future.
Old 08-24-2021, 10:26 AM
  #33  
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Originally Posted by Bwright
He did an unofficial 7:10? If so, do you have a link to where that was mentioned? Would love to reference that in future.
Crap! It was 7:13 unofficial and 7:16 official. The 7:13 is so stuck in my head, I dropped 3 seconds from it! I'll find the 7:13 link though...
Old 08-24-2021, 10:31 AM
  #34  
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https://www.motortrend.com/reviews/2...t-test-review/

"His time is also more than 13 seconds quicker than what the standard ZL1 has done, 7:29.60. Al's story, however, was one of tragedy. A little window of time had suddenly opened up one afternoon in Germany, and Bill jumped into the red ZL1 1LE and managed to run a lap in the 7:13 neighborhood. A Lexus LFA Nürburgring package ran a 7:14.64. But because everything happened so fast, Team Camaro didn't document it. No GoPro, no one thought to hit record on the PDR, no onboard data capture equipment—nothing. These things happen, though mostly it seems to Camaros."
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Old 08-24-2021, 04:22 PM
  #35  
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There is no way its under 6:54. I think sub 7 isnt possible unless the car is really lightweight (sub 3400) and have some pretty aggressive downforce (1000 lbs vMAX).
Old 08-24-2021, 04:36 PM
  #36  
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Originally Posted by UnhandledException
There is no way its under 6:54. I think sub 7 isnt possible unless the car is really lightweight (sub 3400) and have some pretty aggressive downforce (1000 lbs vMAX).
AMG black series is front engine car with weight over 3600lb and has downforce of less than 1000lb
Old 08-24-2021, 04:37 PM
  #37  
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Originally Posted by Iker
AMG black series is front engine car with weight over 3600lb and has downforce of less than 1000lb
That car gives me hope for the C8Z

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Old 08-24-2021, 04:38 PM
  #38  
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Originally Posted by Bwright
Bill Wise's Ring Lap in the Camaro ZL1 1LE (link below) remains one of the most epic bits of driving I have ever seen. Half the time I simply did not believe what I was seeing. Yes, Oliver Gavin's background speaks for itself but I would very much like to see Bill Wise wheel the C8 Z06 for this and any other runs. Agree with you 100% on that.

https://www.youtube.com/watch?v=t4zSIVpVMaw
That dood's not right!

Very talented and very ballsey. I was counting the number of times I would have died and I got to like 12 about half way through and I gave up.
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Old 08-24-2021, 04:38 PM
  #39  
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Originally Posted by RJ-92
That dood's not right!

Very talented and very ballsey. I was counting the number of times I would have died and I got to like 12 about half way through and I gave up.
Old 08-24-2021, 04:45 PM
  #40  
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Originally Posted by Iker
AMG black series is front engine car with weight over 3600lb and has downforce of less than 1000lb
I said max speed. That car has over 1700 lbs of downforce max speed. Twice the C7 ZR1 almost. Nurburgring is all about aero. Lots of very fast turns that can add seconds.

https://carbuzz.com/cars/mercedes-benz/amg-gt-black-series

Last edited by UnhandledException; 08-24-2021 at 04:45 PM.


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