View Single Post
Old 03-15-2016, 01:53 PM   #48 (permalink)
gumby79
Master EcoModder
 
gumby79's Avatar
 
Join Date: Dec 2014
Location: Butte, Montana
Posts: 725

little jona - '91 Dodge D 250 first gen cummins LE
Team Streamliner
90 day: 23.4 mpg (US)

Little Jona airo modded - '91 Dodge RAM 3/4 TON D 250 2×4 AUTO
Pickups
Team Cummins
90 day: 18.5 mpg (US)

The Salted Hound Jenny. - '87 Dodge Ram 50/D-50 5sp 4X4
90 day: 20.24 mpg (US)

Jona Allison aero - '91 Dodge Ram D-250 Le
90 day: 20.76 mpg (US)
Thanks: 208
Thanked 427 Times in 278 Posts
https://www.aa.washington.edu/AERL/KWT/rateguide
Quote:
Originally Posted by aerohead View Post
As to what will pass muster as scientific proof,we may be looking at wind tunnel data.After 40-years,I'm not confident that Cd vs mpg relationships can be taken as gospel due to a myriad of variables which can affect on-road testing.
--------------------------------------------------------------------------
*As to your 'over-length' cap,mine's the same way.I ran a verification run a few months ago at 55-mph and showed a 23.2% improvement over 'naked',but along with the cap,I also had a nose,4-skirts,most of a belly pan,and hood blister.
With the whole kit,I've seen a 59.6% mpg improvement on three occasions at this speed.
Based on this your short ancer is 500usd per hr Times 9hr min. [4500usd] and this is the only non phd acceptable meteod
How many hr in the tunnel to get 23% or is this # just as bosga as my 8000mi TEST
__________________
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


  Reply With Quote
The Following User Says Thank You to gumby79 For This Useful Post:
aerohead (03-15-2016)