06-09-2019, 10:38 PM
|
#3091 (permalink)
|
Master EcoModder
Join Date: May 2019
Location: California
Posts: 513
2020 - '08 Chevy Tahoe H Last 3: 18.4 mpg (US) 2021 - '08 Chevy Tahoe H 90 day: 17.08 mpg (US) 2022 - '08 chevy Tahoe LT Last 3: 14.38 mpg (US) 2023 - '08 Chevy Tahoe Last 3: 22.61 mpg (US) 2024 - '08 Chevy Tahoe 90 day: 22.35 mpg (US)
Thanks: 2
Thanked 105 Times in 96 Posts
|
Quote:
Originally Posted by aerohead
About the time the scientists figured out the lowest drag car bodies,DuPont-General Motors Corporation adopted design obsolescence and the annual styling change.They've done everything they can to delay aerodynamics and maintain emotion-driven,rather than reason-driven products.
Just watch a Denali or Silverado commercial today,you'll get the idea.
And watch how today,they're still attempting to kill California's home-rule,rather than just build more efficient vehicles for everybody.A two-faced Janus if there ever was one.
|
back in 08 they worked very hard NON gas guzzling SUV I mean i get 31MPG (25 MPG combined) highway with a Tahoe hybrid 6.0L v8 that is the same as a 2008 v6 2.4L Camey...
That is with a 11 years old worn out battery..
the previous year
>1998 Tahoe was 0.65+ square brick
2006 Tahoe was 0.45
2007-2014 Tahoe was 0.367
2008-2013 Hybrid trim only was 0.34 same as a Geo Metro.
the 2008 rear end enhancements help it's similar to the 2015 model
the front end being more flat-ish
no progress made my ass..
so from 1998 to 2007/2008* *0.34 ---2008 hybrid trim
it went from 0.65 to 0.367
0.34 standard in 2015 .
|
|
|
The Following User Says Thank You to Tahoe_Hybrid For This Useful Post:
|
|
Today
|
|
|
Other popular topics in this forum...
|
|
|
06-09-2019, 11:05 PM
|
#3092 (permalink)
|
EcoModding Apprentice
Join Date: May 2008
Location: N. Saskatchewan, CA
Posts: 1,805
Thanks: 91
Thanked 460 Times in 328 Posts
|
Quote:
Originally Posted by Tahoe_Hybrid
back in 08 they worked very hard NON gas guzzling SUV I mean i get 31MPG (25 MPG combined) highway with a Tahoe hybrid 6.0L v8 that is the same as a 2008 v6 2.4L Camey...
That is with a 11 years old worn out battery..
the previous year
>1998 Tahoe was 0.65+ square brick
2006 Tahoe was 0.45
2007-2014 Tahoe was 0.367
2008-2013 Hybrid trim only was 0.34 same as a Geo Metro.
the 2008 rear end enhancements help it's similar to the 2015 model
the front end being more flat-ish
no progress made my ass..
so from 1998 to 2007/2008* *0.34 ---2008 hybrid trim
it went from 0.65 to 0.367
0.34 standard in 2015 .
|
You mean 1908? When the Model T Ford began its domination, GM could have competed directly. Instead, they decided to sell used cars as their low-price option, which encouraged style changes and a full line of cars of increasing "status."
We should not be surprised that companies have always tried to sell us the most expensive cars we will buy; we should just be glad that we have usually been smarter than we were in '57, when simply raising the price of a car raised expectations and sales. If we got what we paid for, it was pure bragging rights.
GM has always let their engineers play to both retain and hone talent, so their back lot features some pretty economical, unconventional wheels, but they don't see production. The Lean Machine was a rare look at that work.
__________________
There is no excuse for a land vehicle to weigh more than its average payload.
|
|
|
06-10-2019, 12:42 AM
|
#3093 (permalink)
|
Master EcoModder
Join Date: May 2019
Location: California
Posts: 513
2020 - '08 Chevy Tahoe H Last 3: 18.4 mpg (US) 2021 - '08 Chevy Tahoe H 90 day: 17.08 mpg (US) 2022 - '08 chevy Tahoe LT Last 3: 14.38 mpg (US) 2023 - '08 Chevy Tahoe Last 3: 22.61 mpg (US) 2024 - '08 Chevy Tahoe 90 day: 22.35 mpg (US)
Thanks: 2
Thanked 105 Times in 96 Posts
|
Quote:
Originally Posted by Frank Lee
Wouldn't it be great if roads were so smooth and lacking in dips and valleys that the truck/trailer relationship could tolerate that setup? Otherwise some extreme creativity is needed either in suspension compensation or moving body panels. Or maybe the trailer nose can tuck into/under the truck fairings, again provided movement is limited or the gaps are generous enough or the fairing can "give"... or what?
I say fix the truck to the trailer, eliminate that gap altogether, and make both the front axles steer.
|
they do make them like that it's called a box truck
it would be a after market add on also an OEM version..
most of the time trailers need to be removed etc.. my IDEA would accept this issue...
a Custom accordion style gap filler ..
it would have to be custom to each tractor for perfect fit
they use them on the SUPER long metro buses
the one in the photo has a fixed one which would be use less
I would be worried that those metal hinges will FAIL (metal fatigue or wear and tear) and have 30 pound sheet metal flying off into traffic.. THAT is why we don't have them today
Last edited by Tahoe_Hybrid; 06-10-2019 at 12:56 AM..
|
|
|
06-10-2019, 02:52 AM
|
#3094 (permalink)
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,997
Thanks: 8,230
Thanked 9,001 Times in 7,435 Posts
|
I may've found aerohead's long lost Greyhound bus picture, or at least a screenshot of an annotated printout. The search criteria was https://duckduckgo.com/?q=bus+with+attached+aerodynamic+trailer
Here in all it's glory, from Imgur:
Now safely ensconced in my Aero Technical album.
__________________
.
.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
________________
.
.Because much of what is in the published literature is nonsense,
and much of what isn’t nonsense is not in the scientific literature.
-- Sabine Hossenfelder
Last edited by freebeard; 06-10-2019 at 03:00 AM..
|
|
|
The Following User Says Thank You to freebeard For This Useful Post:
|
|
06-12-2019, 03:29 PM
|
#3095 (permalink)
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,997
Thanks: 8,230
Thanked 9,001 Times in 7,435 Posts
|
__________________
.
.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
________________
.
.Because much of what is in the published literature is nonsense,
and much of what isn’t nonsense is not in the scientific literature.
-- Sabine Hossenfelder
|
|
|
06-12-2019, 03:55 PM
|
#3096 (permalink)
|
EcoModding Apprentice
Join Date: May 2008
Location: N. Saskatchewan, CA
Posts: 1,805
Thanks: 91
Thanked 460 Times in 328 Posts
|
^^ I'm sure that everyone copied the early VW bug on that one. :-)
__________________
There is no excuse for a land vehicle to weigh more than its average payload.
|
|
|
The Following User Says Thank You to Bicycle Bob For This Useful Post:
|
|
06-12-2019, 10:02 PM
|
#3097 (permalink)
|
Thalmaturge
Join Date: Mar 2011
Location: The edge of nowhere
Posts: 1,167
Thanks: 769
Thanked 646 Times in 431 Posts
|
Quote:
Originally Posted by Bicycle Bob
^^ I'm sure that everyone copied the early VW bug on that one. :-)
|
Tatra successfully got a settlement out of VW for copying their cars in the beetle....
https://en.m.wikipedia.org/wiki/Tatr...agen_KdF-Wagen
|
|
|
06-12-2019, 10:09 PM
|
#3098 (permalink)
|
EcoModding Apprentice
Join Date: May 2008
Location: N. Saskatchewan, CA
Posts: 1,805
Thanks: 91
Thanked 460 Times in 328 Posts
|
Quote:
Originally Posted by samwichse
|
That sort of thing is why I never spent much on patents. The VW was first drawn in 1922.
__________________
There is no excuse for a land vehicle to weigh more than its average payload.
|
|
|
06-13-2019, 12:30 AM
|
#3099 (permalink)
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,997
Thanks: 8,230
Thanked 9,001 Times in 7,435 Posts
|
1922? [citation needed]
In 1922 Porsche was working on the Austro-Daimler_Sascha
There was a lot of back-and-forth at the time. Josef Ganz had the Standard Champion on the market in 1933, the same year Hitler sketched out the KDF Wagen on a napkin.
Chassis van het Ardie-Ganz prototype in de Ardie-fabriek.
https://historiek.net/het-geheim-van...wagen-2/43068/
Porsche vs Ledwinka vs Ganz
The split-window has nothing on this Studebacker.

__________________
.
.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
________________
.
.Because much of what is in the published literature is nonsense,
and much of what isn’t nonsense is not in the scientific literature.
-- Sabine Hossenfelder
|
|
|
The Following 2 Users Say Thank You to freebeard For This Useful Post:
|
|
06-13-2019, 01:07 AM
|
#3100 (permalink)
|
EcoModding Apprentice
Join Date: May 2008
Location: N. Saskatchewan, CA
Posts: 1,805
Thanks: 91
Thanked 460 Times in 328 Posts
|
Sorry, the 1922 date sounded solid to me, but I don't recall the source. Perhaps "sketched" would be more accurate than "drawn." BTW, Porsche was the only guy who never called Hitler "my father" - just "Mister."
__________________
There is no excuse for a land vehicle to weigh more than its average payload.
|
|
|
The Following User Says Thank You to Bicycle Bob For This Useful Post:
|
|
|