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Old 12-21-2019, 08:02 PM   #85 (permalink)
Master EcoModder
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Join Date: Dec 2014
Location: Butte, Montana
Posts: 691

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
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: 20.63 mpg (US)
Thanks: 199
Thanked 396 Times in 257 Posts
This is what I skeched about a month ago for minding the rules .
Use an extended cab short bed. This wluld alow moving the seat back to give me some leg room . Then mod the floor to form the duct through the front bulkhead.

The part above the open tailgate is the Bonneville spoiler.

The duck face to the right is a front view of the truck . The blue mock up was a twin flat bed sheet, to give me an approximation of what the shrink wrap will look like.
What I see as ideal would be to turn the contour inside out. A shot without the CAD hood scoop it is aloud 11"tall at the center line and 11" eather side of center.

What the inside will look like when the wight pice is finished.
7°taper=9:1. 3-6"R at the IC core.
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1st gen cummins 91.5 dodge d250 ,HX35W/12
ehxsost manafulld wrap, Aero Tonto
best tank: distance 649gps mi 24.04 mpg 27.011usg
Best mpg : 29.3mpg 97mi 3.311usg 7/27/16

'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

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aerohead (12-26-2019), BamZipPow (12-31-2019), freebeard (12-21-2019)