Shno's House of Z

[mlee]

Who says this will be the final number. They made many many runs w/ the ZL1. I spoke with Aaron about the runs (Fest III) and he said the ZL1 hit 7:41 on the very last run after running out of time on the final day.

I bet we see something a tad better but this was awesome.


http://media.gm.com/content/media/us...rburgring.html

Oh yeah... Hi guys

[JusticePete]

I am guessing this is the best time they ran on this trip and to date, which is not to say it is the best lap the Z/28 can post.

I don't think the video 'leaked'. Who would have access to in car video outside of GM?

Adam Dean was doing the driving in the video.

I only watched the video once. After the rain hit, Adam stayed in it hard. The revs were pegged at 6k down the straight in the rain. He lost some time in wet braking, entry and exit speeds, but he ran the Z hard and put her in the garage wet.

My guess for the six second faster estimate by Al O in the press release is he based that on a best lap target created by computer. I have no idea how many sectors they divide the 13 mile ring run, but by taking the best sector actual lap times and pasting them together you end up with a theoretical best lap time.

I am sure Adam Dean is a top flight driver for GM. What I don't know is how much time he has spent driving at the Ring. Seat time at the Ring directly correlates to lower lap times more so than most tracks. 13 miles is a lot of track to learn inside out so that you can almost drive it with your eyes closed.

As the story develops we'll learn more details and then the real speculation can start. Just how fast can the Z/28 run the ring?

[radz28]

I just read an article in MT that Mr. O. says telemetry shows they have another 6-seconds they could trim from that posted 'Ring time...

http://wot.motortrend.com/2014-chevr...eo-416573.html

[JusticePete]

Originally Posted by radz28

I just read an article in MT that Mr. O. says telemetry shows they have another 6-seconds they could trim from that posted 'Ring time...

http://wot.motortrend.com/2014-chevr...eo-416573.html

That would most likely be the lap sector information.

[radz28]

Originally Posted by JusticePete

That would most likely be the lap sector information.

Yeah - I noticed your post while I was putting mine together, LOL. Computer and real-world are two different things, but all I want to see is a good clean run in decent weather. 6-seconds seem like a lot. It seems like there was more time that could be made up for the semi-straights, just several hundred yards before the Carousel; the speedometer wasn't showing any increase in speed - it held, the whole time, right around 144. Maybe they just go faster; I think I remember Mr. Link's run, in ZL1, about the same around there.

[JusticePete]

The sector time are real. It take a very good driver to put all the sectors together to hit that theoretical time. With a great driver that knows the car and track the goal isn't to equal the best theoretical lap, it is to better it. Knowing the track inside and out is mission critical. When we ran the Mustang Camaro Supercar Shootout for Hot Rod Magazine I used a Gm engineer / driver John Buttermore. John knows Gingerman inside and out. John ran 20 something laps with both cars.

The difference between his fastest and slowest lap in the Mustang was 1/100th of a second. Compared to the theoretical fastest lap in the Mustang John was 1/1000th off.

He sucked in the Camaro. There was a full 1/10th of a second difference between his fastest and slowest laps. On the theoretical with the Camaro he completely blew it. He was 1/100th off.

To be this consistent requires countless hours of seat time in the car and on he track. The neither Adam Dean or the Z/28 have not been at the Ring long enough IMO to expect that kind of consistency. Those killer C6 Vette numbers came years into the C6 program. #3 can speak directly to this so I'll ask him.

Jim,

1. How many trips and approximately how many hours of track time were logged in the C6 program at the Ring?
2. How many laps or hours did Jim Mero have at the Ring in a Vette when he posted the 7:19 and 7:22?

[Sven59]

Originally Posted by camaro2lt

Aaron Link usually does the driving at the ring so I do believe it was him.

It was Adam Dean, would have been nice if they had the same driver in the ZL1 and Z28.

[IOMZL1]

Originally Posted by JusticePete

That would most likely be the lap sector information.

Point taken. Racing is full of could haves and would-be ideal laps. This said, look at the recently posted side-by-side. I think the Z/28 was up 10-12 seconds and perhaps rain / ZL1 top speed took some of that back. Let's say it didn't rain and the ZL1 takes time back on the long straight - maybe that's your 6 seconds. Either way I don't mind but I was surprised to see the Z/28 up so much until the end given the final lap times. As so often is the case there seems to be much more to the story than the end result.

[2cnd chance]

Any VIR or Laguna Seca guesses based on the Ring time?

[tramtwo]

Originally Posted by 2cnd chance

Any VIR or Laguna Seca guesses based on the Ring time?

VIR 2:45 :-D

Sent from my DROID RAZR using Tapatalk 2

[PYROLYSIS]

So I wonder why no roll cage this time when the ZL1 "had" to have it when it ran the ring?

[90503]

Originally Posted by PYROLYSIS

So I wonder why no roll cage this time when the ZL1 "had" to have it when it ran the ring?

My uneducated guess would be perhaps the Z/28 was considered a "track-capable" car already and tested as such....Perhaps the ZL=1 was not in the same "category"....

[blufin]

3.8 seconds per lap may not seem like much, but after a 25 lap race, that 1:30 difference. On a 50 lap race that stretches to 3:16. That's an eternity in racing terms. For the weekend warrior, that my be exactly what draws them to the Z.
Enjoy. Great job GM.

[JusticePete]

If you canceled your Z/28 order, now would be a good time to call or email your dealer.

There is a wealth of information that came out of the media day at Milford got the Z/28. Some on the record. Some off the record. The six seconds are not guess work or hypothetical. There is more in the car than people think. My best guess is a return to the Ring will produce lap times just under 7:30. I'll let the media step in because I am not sure what is on the record or off the record.