06-21-2018, 01:54 PM
|
#721 (permalink)
|
|
Cyborg ECU
Join Date: Mar 2011
Location: Coastal Southern California
Posts: 6,299
Thanks: 2,373
Thanked 2,172 Times in 1,469 Posts
|
Quote:
Originally Posted by kach22i
|
I was refering to the Mercedes post you made on the 14th. 
__________________
See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.
|
|
|
|
 Today
|
|
|
|
Other popular topics in this forum...
|
|
|
|
|
06-22-2018, 10:15 AM
|
#722 (permalink)
|
|
Master EcoModder
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 4,179
Thanks: 127
Thanked 2,802 Times in 1,968 Posts
|
Quote:
Originally Posted by California98Civic
I was refering to the Mercedes post you made on the 14th. |
Okay, helps to be specific.
I googled the title, it was one of the MB blog posts.
https://mercedes-benz-blog.blogspot....s-emotion.html
I updated the original post too.
__________________
George
Architect, Artist and Designer of Objects
2012 Infiniti G37X Coupe
1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft
You cannot sell aerodynamics in a can............
|
|
|
|
|
08-06-2018, 03:02 PM
|
#723 (permalink)
|
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,541
Thanks: 8,084
Thanked 8,877 Times in 7,326 Posts
|
They obtain 3.4% accuracy compared to 2.2% in physical wind tunnels, per Hucho.
This is machine learning, from a data set of 800 shapes they precompute the CD and then compare to a control of 80 done the hard way.
This [potentially] fulfills my dream of finding the shape that's halfway between the Volhart-Saggitta V2 and a new Corvette.
__________________
.
.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
____________________
.
.Three conspiracy theorists walk into a bar --You can't say that is a coincidence.
|
|
|
|
|
The Following 2 Users Say Thank You to freebeard For This Useful Post:
|
|
|
08-07-2018, 11:12 AM
|
#724 (permalink)
|
|
EcoModding Lurker
Join Date: Jan 2017
Location: UK
Posts: 29
Thanks: 11
Thanked 16 Times in 9 Posts
|
Some interesting results. The front dam actually made its Cd worse
|
|
|
|
|
The Following 3 Users Say Thank You to ratgreen For This Useful Post:
|
|
|
08-09-2018, 02:27 PM
|
#725 (permalink)
|
|
Cyborg ECU
Join Date: Mar 2011
Location: Coastal Southern California
Posts: 6,299
Thanks: 2,373
Thanked 2,172 Times in 1,469 Posts
|
Quote:
Originally Posted by ratgreen
Some interesting results. The front dam actually made its Cd worse
|
0.74 on the start! And 0.658 feels like a stunning improvement. What did they say they gained in that alone? 248 hp lost to drag. Really cool experiment.
__________________
See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.
|
|
|
|
|
The Following User Says Thank You to California98Civic For This Useful Post:
|
|
|
08-09-2018, 07:30 PM
|
#726 (permalink)
|
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,541
Thanks: 8,084
Thanked 8,877 Times in 7,326 Posts
|
That's very similar to the Darko wind tunnel in Ogden, UT, that aerohead and gumby79 put their trucks in. It has 450hp. I don't have time for the whole 40 minutes, is it 700hp with or without the front fans?
__________________
.
.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
____________________
.
.Three conspiracy theorists walk into a bar --You can't say that is a coincidence.
|
|
|
|
|
08-09-2018, 08:50 PM
|
#727 (permalink)
|
|
Cyborg ECU
Join Date: Mar 2011
Location: Coastal Southern California
Posts: 6,299
Thanks: 2,373
Thanked 2,172 Times in 1,469 Posts
|
Quote:
Originally Posted by freebeard
... I don't have time for the whole 40 minutes, is it 700hp with or without the front fans?
|
Haha. I didn't have the time for it either and just clicked through for highlights.
__________________
See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.
|
|
|
|
|
08-10-2018, 01:22 AM
|
#728 (permalink)
|
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,541
Thanks: 8,084
Thanked 8,877 Times in 7,326 Posts
|
I'd gone back in and added the Darko 450hp. Would have guessed it had 700hp or more. They both operate at an airspeed of 85mph.
__________________
.
.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
____________________
.
.Three conspiracy theorists walk into a bar --You can't say that is a coincidence.
|
|
|
|
|
08-11-2018, 09:32 PM
|
#729 (permalink)
|
|
Master EcoModder
Join Date: Dec 2014
Location: Butte, Montana
Posts: 726
Thanks: 208
Thanked 428 Times in 279 Posts
|
I like the color scheme better on the East Coast A2 . The gray is better for seeing the smoke . The 2nd sister (same blue prints, the only difference between is the altitude ) A2 Ogden . Is almost a perfect color match to the smoke so it doesn't show up very well especially when you get back behind the vehicle to see what the wake is doing. Even the human eye has trouble distinguishing between the smoke and the background. If the eye can't see it then there's not much chance for the camera to be capable of catching it.
__________________
1st gen cummins 91.5 dodge d250 ,HX35W/12/6 QSV
ehxsost manafulld wrap, Aero Tonto
best tank: distance 649gps mi 24.04 mpg 27.011usg
Best mpg : 31.32mpg 100mi 3.193 USG 5/2/20
Former
'83 GMC S-15 Jimmy 2door 2wd O/D auto 3.73R&P
'79 Chevy K20 4X4 350ci 400hp msd custom th400 /np205. 7.5-new 14mpg modded befor modding was a thing
87' Hyundai Excel
83 ranger w/87 2.9 L FI2wd auto 18mpg on the floor
04 Mitsubishi Gallant 2.4L auto 26mpg
06 Subaru Forrester XT(WRX PACKAGE) MT AWD Turbocharged 18 plying dirty best of 26mpg@70mph
95Chevy Blazer 4x4 auto 14-18mpg
04 Chevy Blazer 4x4 auto 16-22mpg
|
|
|
|
|
The Following 2 Users Say Thank You to gumby79 For This Useful Post:
|
|
|
08-12-2018, 12:49 AM
|
#730 (permalink)
|
|
Master EcoModder
Join Date: Jan 2017
Location: Istanbul
Posts: 1,245
Thanks: 65
Thanked 225 Times in 186 Posts
|
Quote:
Originally Posted by California98Civic
Haha. I didn't have the time for it either and just clicked through for highlights.
|
The boy does blabber quite a bit. Luckily Youtube has settings so that you can watch it at 2x the speed.
|
|
|
|
|
