7:13 'Ring Lap time from the C7 Z06
07-22-2017, 12:14 PM
#401
At the end I don't care what did you do to make downforce, all what I care is how much downforce you have there
Actually I hope to see a ZR1 with low down force make a lap time less than 7:10.
Don't you mean "high DF?"
Hope to see active aero on base ZR1 models.
Sorry, but that fast list is for ostensibly production automobiles running their production tires.
But I am ragging on Subaru's press release. It falls in the So What category.
I think it is a bit of clever marketing.
Also, for those who do not know, the record from 2010 was set by the factory Viper Racing team ace GT1 driver: Dominik Farnbacher.
https://en.wikipedia.org/wiki/Dominik_Farnbacher
07-22-2017, 12:38 PM
#402
Scraping the splitter.
Tadge has given great detail on the Z06's aerodynamic and "negative lift" properties.
Originally Posted by Tadge Juechter
The Z06, with its wider tires and flared body panels has a higher frontal area (up to about 2.1 square meters) and the standard car has drag and lift numbers similar to the Z51. The Z06 has available Stage 2 (CFZ or CFV Carbon Fiber Ground Effects) and Stage 3 (Z07 Performance package with the large end plate on splitter and the center bridge "wicker" on the rear spoiler) aero packages that further trade drag for additional downforce. Stage 2 has a "lift" coefficient of -.152 and stage 3 is -.279. The minus signs mean negative lift or down force. The trade off in drag means those coefficients move from about .40 to .50. In other words, the cars are starting to approach race car numbers. In our testing on many tracks, the improvement in corner speeds more than offsets the straight line speed loss from the higher drag. Depending on body style, our aero packages have lift to drag ratios ranging from 2.6 to 3.6. We consider anything over 2.0 (2 counts of lift reduction at the cost of a single count of drag) an efficient tradeoff.
07-22-2017, 02:42 PM
#403
Le Mans Master
Yes, another perfect segway! ;)
The effectiveness of the original ZO6's at The Ring is still largely left to the imagination. Could it be they are just done with all those issues? If the passed is any indication thereof.....
Again, and let me be clearer. GM needed to better the '1le, and that's done. And even more GM needed to stay as clear of this as possible to not open any new discussions of this endeavors past. IE The past configuration and its history anomalies. YOU do see all the questions that would have been forthcoming, RIGHT!
Again, and again, let me be clearer. GM knows guys follow this and the run would be deemed a lesser magazine quality!
The Vagueness transcends!
NOW, straight up with The Viper!
Again, and let me be clearer. GM needed to better the '1le, and that's done. And even more GM needed to stay as clear of this as possible to not open any new discussions of this endeavors past. IE The past configuration and its history anomalies. YOU do see all the questions that would have been forthcoming, RIGHT!
Again, and again, let me be clearer. GM knows guys follow this and the run would be deemed a lesser magazine quality!
The Vagueness transcends!
NOW, straight up with The Viper!
http://www.carscoops.com/2017/07/two...rburgring.html
Last edited by johnglenntwo; 07-23-2017 at 11:01 PM.
07-22-2017, 03:00 PM
#404
Le Mans Master
All the various track adjustment setups!
Last edited by johnglenntwo; 07-22-2017 at 03:38 PM.
07-22-2017, 03:38 PM
#405
Please do not take this as an attempt to derail the Z06 thread - I am merely providing clarification of points brought out by others. The ACR is very owner/operator adjustable. There are recommended track camber, caster, and toe settings. The car has 10-way adjustable coil-overs, so ride height and compression/rebound settings can be changed by the owner - Dodge provides recommended initial track setting recommendations and even provides the shock wrenches to adjust ride height. Ride height and rake are critical. The shocks have simple ***** to make changes. The wing is adjustable and most of us have backed off the maximum downforce setting to reduce drag - there is absolutely no loose condition. Kumho pretty much has the tire pressures worked out. The car is delivered with a large carrying case with the extended front splitter, the rear diffuser blade extensions, and additional brake cooling ducts. These can be owner installed for the track. (I drive mine on the street, but I do raise the ride height 1/2 inch for street duty.) So adjustments to the car for track use are expected and well within the capability of most owner/operators. It's a little "old school" and not as well developed, sophisticated, or precise as the Z06 systems, but in the hands of track-savvy operator, you can achieve some pretty good results. Since the ACR-E has, to date, had almost no Ring time, I am sure that the team is making lots of adjustments to fine tune the suspension for the track.
Pappy
Pappy
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07-23-2017, 11:47 PM
#406
Le Mans Master
What I think you really meant!
Autonomousness will help though!
Last edited by johnglenntwo; 07-25-2017 at 03:32 AM.
07-24-2017, 02:28 AM
#407
Melting Slicks
Can't really find a solid number about the z06's top speed, anyone know? for aero stage 1,2, and 3.
07-24-2017, 05:20 PM
#410
Le Mans Master
Member Since: Oct 2005
Location: Metro Detroit Michigan
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John, could you please go back to asking your Mom whether a post is comprehensible, before clicking on the "post" button?
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keagan (07-24-2017)
07-24-2017, 05:46 PM
#412
Le Mans Master
Analysis may have downside!
Shouldn't the car have been floored!?
The spoilers did that!?
If the Viper gets to its (That!) top speed!?
http://www.caranddriver.com/reviews/...t-drive-review
The Viper was rained out today. When it drys up they are going for it. They are figuring on the significant Lambos time and they are calculated right there to beat it.
https://ca.motor1.com/news/174677/cr...ng-record/amp/
Last edited by johnglenntwo; 07-25-2017 at 01:08 AM.
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07-25-2017, 02:08 AM
#415
07-25-2017, 02:20 AM
#416
Le Mans Master
Yep!? ;)
. They often don't end up having a reply.Even the supposite ignore list geniuses for some reason manage to make it often, especially when my posts bite hard!
Last edited by johnglenntwo; 07-25-2017 at 03:00 AM.
07-25-2017, 04:20 AM
#417
Banned Scam/Spammer
Many times hundreds chime into my posts (that are all by themselves) because they are just trying to figure them out. They often don't end up having a reply.
Even the supposite ignore list geniuses for some reason manage to make it often, especially when my posts bite hard!
. They often don't end up having a reply.Even the supposite ignore list geniuses for some reason manage to make it often, especially when my posts bite hard!
07-25-2017, 05:19 AM
#418
07-25-2017, 06:21 AM
#419
Le Mans Master
So Glad youse Like it! ;)
The Viper's last two segments with the straight will be measured and simply compared with the ZO6's (using the ZO6's MPH) even if they don't give us its MPH! Or something like that!
That's Too interesting for Romper Room!
No rain tomorrow there!
That's Too interesting for Romper Room!
Last edited by johnglenntwo; 07-25-2017 at 07:46 AM.
07-25-2017, 08:17 AM
#420
Race Director
The Viper's last two segments with the straight will be measured and simply compared with the ZO6's (using the ZO6's MPH) even if they don't give us its MPH! Or something like that!
That's Too interesting for Romper Room!
https://youtu.be/td1KAgrYUGA
No rain tomorrow there!
That's Too interesting for Romper Room!
https://youtu.be/td1KAgrYUGA
No rain tomorrow there!