Notices
C8 General Discussion The place to discuss the next generation of Corvette.
Sponsored by:
Sponsored by:

Corvette Acceleration Testing [Video]

Thread Tools
 
Search this Thread
 
Old 06-21-2018, 02:20 PM
  #41  
NewYuriCity
Racer
Thread Starter
 
NewYuriCity's Avatar
 
Member Since: Dec 2017
Location: San Francisco, CA
Posts: 282
Received 235 Likes on 86 Posts
Default

Originally Posted by firstvettesoon
First run. 6.3 sec to 1/10 mile marker. So I guess it's close to your 1/8 mile estimate of 6.6sec av.
of course only rough due to perspective etc.

This is awesome, thanks FVS! What sort of time is he getting to that yellow sign?
Old 06-21-2018, 02:20 PM
  #42  
firstvettesoon
Melting Slicks
 
firstvettesoon's Avatar
 
Member Since: Sep 2012
Posts: 2,058
Received 1,906 Likes on 750 Posts
Default

Originally Posted by NewYuriCity
No worries dude I was curious where you got your 0-60 calculation from, because based on the mile markers he's flying. we can't really tell fully because it cuts out before he hits the 1/4 mile marker but based on 6.5-7s 1/8th mile times that should be less than 11s in the 1/4 mile! For reference, a ZR1 that did a 10.1 1/4 mile pass did the 1/8th in 6.53s
I agree. Based on the last run which cuts just shy of the 1/4 mile marker, I would put it at about the same as your est of 10.0 +- - 10.2 10.5 ? ?

Of course not super accurate due to exact position... but not s l o w... ; )

Last edited by firstvettesoon; 06-21-2018 at 02:22 PM.
The following users liked this post:
NewYuriCity (06-21-2018)
Old 06-21-2018, 02:24 PM
  #43  
elegant
Safety Car
 
elegant's Avatar
 
Member Since: Dec 2003
Location: Pacific Northwest
Posts: 3,639
Received 2,680 Likes on 1,231 Posts

Default


Interesting schematic from today’s Road & Track article:



https://www.roadandtrack.com/new-car...ws&date=062118
The following users liked this post:
firstvettesoon (06-21-2018)
Old 06-21-2018, 02:35 PM
  #44  
firstvettesoon
Melting Slicks
 
firstvettesoon's Avatar
 
Member Since: Sep 2012
Posts: 2,058
Received 1,906 Likes on 750 Posts
Default

I get 10.2 sec. to the cut just before the 1/4 mile marker. Another car length to 1/4? 10.5 sec ??

Note the driver releases the breaks and starts cold prior to start?

I am sure some one who can do a frame by frame can get a better idea for timing but as an estimate...not too shabby.


Anyone know a way to calculate a 0-60mph based on these vids?

I tried...and this is not my wheelhouse... at estimated 155 ft at around 4 sec. Not sure how this correlates if at all.

This is what I was saying about hitting 60 by the first yellow sign at around 120-130 feet.

Anyone have stats of Porsche or Ferrari 0-60 in feet ?


Last edited by firstvettesoon; 06-21-2018 at 02:48 PM.
The following users liked this post:
NewYuriCity (06-21-2018)
Old 06-21-2018, 02:54 PM
  #45  
keagan
Melting Slicks
 
keagan's Avatar
 
Member Since: Jul 2004
Posts: 3,288
Received 876 Likes on 447 Posts

Default

Originally Posted by OnPoint
No, these are not full throttle launches. These are relatively slow, mild launches. Launching hard and running up thru the tach aggressively does not result in 3 shifts before 60 mph, all three of which executed in the lower half of the rpm range.

These launches are pretty mundane.
Not when your rocking the new 15 speed.
Old 06-21-2018, 03:23 PM
  #46  
Shaka
Safety Car
 
Shaka's Avatar
 
Member Since: Nov 2002
Location: FLL Florida
Posts: 4,168
Received 1,331 Likes on 790 Posts

Default

Originally Posted by elegant

Interesting schematic from today’s Road & Track article:



https://www.roadandtrack.com/new-car...ws&date=062118
Ah, round lights,nice. Tires are fitted in the wrong direction.
Old 06-21-2018, 04:16 PM
  #47  
Bikerjulio
Burning Brakes
 
Bikerjulio's Avatar
 
Member Since: Feb 2018
Posts: 927
Received 381 Likes on 221 Posts
Default

Originally Posted by NY09C6
Does not sound like a dct.
Sounds exactly like a DCT to me. (and I own one).

Looks like a coupe too. The cover does not flop inward as it would on the Vert. Plus I think I see the roof joint of a targa.

If testing with "lane assist" active then a signal is needed to deactivate it when changing lanes. Just a random hypothesis there.

Last edited by Bikerjulio; 06-21-2018 at 04:17 PM.
Old 06-21-2018, 04:42 PM
  #48  
Chris Edwards
Drifting
 
Chris Edwards's Avatar
 
Member Since: Nov 2006
Location: Ventura, California
Posts: 1,992
Likes: 0
Received 42 Likes on 29 Posts

Default

I wonder if the first few years will have torque converter problems
Old 06-21-2018, 05:27 PM
  #49  
FrankLP
Miles of Smiles
Support Corvetteforum!
 
FrankLP's Avatar
 
Member Since: Mar 2010
Location: Omaha Nebraska
Posts: 3,181
Received 540 Likes on 365 Posts
2016 C5 of the Year Finalist

Default

Originally Posted by Bikerjulio
Sounds exactly like a DCT to me. (and I own one).

Looks like a coupe too. The cover does not flop inward as it would on the Vert. Plus I think I see the roof joint of a targa.

If testing with "lane assist" active then a signal is needed to deactivate it when changing lanes. Just a random hypothesis there.
Great point on the lane assist technology.
Old 06-21-2018, 07:07 PM
  #50  
sunsalem
Race Director
 
sunsalem's Avatar
 
Member Since: Sep 2014
Posts: 11,905
Received 2,146 Likes on 1,521 Posts
Default

Originally Posted by elegant
Lights out for the six cylinder theorists.
I don't think anyone has been saying that lately.
All of the videos we have seen that have some audio indicate a V8.

BTW, I saw a lowered red 458 today down by Riverfront Park.
Do you know the owner?

Last edited by sunsalem; 06-21-2018 at 07:09 PM.
Old 06-21-2018, 07:36 PM
  #51  
Bikerjulio
Burning Brakes
 
Bikerjulio's Avatar
 
Member Since: Feb 2018
Posts: 927
Received 381 Likes on 221 Posts
Default

Originally Posted by NY09C6
Does not sound like a dct.
Originally Posted by Chris Edwards
I wonder if the first few years will have torque converter problems
Since there isn't one, I don't think there will be a problem.

http://www.tremec.com/anexos/TREMEC_DCT_0318.pdf
Old 06-21-2018, 08:39 PM
  #52  
NY09C6
Le Mans Master
 
NY09C6's Avatar
 
Member Since: Sep 1999
Location: Texas
Posts: 9,813
Received 627 Likes on 363 Posts

Default

Originally Posted by Bikerjulio
Since there isn't one, I don't think there will be a problem.

http://www.tremec.com/anexos/TREMEC_DCT_0318.pdf
The cad drawings show a ZF auto/dct. Not a tremec.

Last edited by NY09C6; 06-21-2018 at 08:39 PM.
Old 06-21-2018, 09:44 PM
  #53  
RedDropTop
Instructor
 
RedDropTop's Avatar
 
Member Since: Apr 2018
Location: Metro Detroit MI
Posts: 165
Received 85 Likes on 41 Posts
Default

These videos today are exciting!

Originally Posted by firstvettesoon
I get 10.2 sec. to the cut just before the 1/4 mile marker. Another car length to 1/4? 10.5 sec ??

Anyone know a way to calculate a 0-60mph based on these vids?
If we assume most performance cars have an acceleration curve that spikes early and then gradually decays, we could guesstimate by looking at the VBOX graph of another car that did the quarter mile in about the same time.

Here is a car that did a 10.87 @ 125.26 mph. His time to 60 mph was 2.7 sec.

http://www.dragtimes.com/blog/first-...racing-14-mile

I am not saying that the shape of the acceleration curve for this car is the same as the C8. I don't know. This is ballpark at best.

The following users liked this post:
firstvettesoon (06-21-2018)
Old 06-21-2018, 09:50 PM
  #54  
Bikerjulio
Burning Brakes
 
Bikerjulio's Avatar
 
Member Since: Feb 2018
Posts: 927
Received 381 Likes on 221 Posts
Default

Originally Posted by NY09C6
The cad drawings show a ZF auto/dct. Not a tremec.
All the stuff I read said Tremec including R&T today (21 June 2018)
A Corvette without a manual? It seems like an impossibility, but that's what our colleagues at Car and Driver believe. Instead, the mid-engine Corvette will use a seven-speed dual-clutch gearbox sourced from Tremec. Of its seven speeds, the top three are overdrives, and Tremec says it can handle 9000 rpm input speed and 664 lb-ft of torque.
Old 06-21-2018, 10:02 PM
  #55  
68roadster
Le Mans Master
Support Corvetteforum!
 
68roadster's Avatar
 
Member Since: Jan 2001
Location: banana republic
Posts: 7,135
Received 167 Likes on 104 Posts

Default

Yes cool to see, but I would hit more revs than that merging onto the superspeedway in the C7. Hey, its my chance for fun for the day on a drive to work
Old 06-21-2018, 10:14 PM
  #56  
Ronstar
Racer
 
Ronstar's Avatar
 
Member Since: Jul 2012
Location: Michigan
Posts: 287
Received 93 Likes on 46 Posts
Default

Originally Posted by NY09C6
The cad drawings show a ZF auto/dct. Not a tremec.
I believe pimp said it was a Tremec
Old 06-21-2018, 10:54 PM
  #57  
AORoads
Team Owner
 
AORoads's Avatar
 
Member Since: Jun 2005
Location: Northern, VA
Posts: 46,104
Received 2,481 Likes on 1,944 Posts
St. Jude Donor '15
"In honor of jpee"

Default

Maybe wrong place to ask, but how does an ME stay cool with all the camouflage on the back? Air gets in the sides and front (?), but where does it exit?

Get notified of new replies

To Corvette Acceleration Testing [Video]

Old 06-21-2018, 11:05 PM
  #58  
Quinten33
Burning Brakes
 
Quinten33's Avatar
 
Member Since: Mar 2017
Location: Florida
Posts: 854
Received 536 Likes on 238 Posts
Default

Originally Posted by AORoads
Maybe wrong place to ask, but how does an ME stay cool with all the camouflage on the back? Air gets in the sides and front (?), but where does it exit?
Vents below the taillights and above the engine
Old 06-21-2018, 11:26 PM
  #59  
Quinten33
Burning Brakes
 
Quinten33's Avatar
 
Member Since: Mar 2017
Location: Florida
Posts: 854
Received 536 Likes on 238 Posts
Default

Originally Posted by Ronstar

I believe pimp said it was a Tremec
I believe ZERV and SSM6Sedan(guy who said how many transmissions they ordered) also said that it was a TREMEC. ZERV even included this:
When you search “M1L Gamma Readiness Escalation”, a GM document about global supplier quality and the PPAP (Production Parts Approval Process) show up. http://www.iatfglobaloversight.org/w...6Oct2016-1.pdf

However, the transmission in the CADs look just like ZF’s PDK transmission. The transmission mounts are exactly the same.

I say it’s a TREMEC DCT, mostly because nobody with inside info has said anything about a ZF transmission.

Last edited by Quinten33; 06-21-2018 at 11:29 PM.
Old 06-21-2018, 11:29 PM
  #60  
pietro c7
Melting Slicks
 
pietro c7's Avatar
 
Member Since: Sep 2013
Location: montreal quebec
Posts: 2,235
Received 1,157 Likes on 650 Posts
Default

Originally Posted by Quinten33


Vents below the taillights and above the engine
Not to mention what’s going on beneath the car,
the hire ground clearance is there for a reason.

I bet almost 40% of all this cars aerodynamic and cooling requirements ,
come from beneath the car.


Quick Reply: Corvette Acceleration Testing [Video]



All times are GMT -4. The time now is 06:29 AM.