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Old 04-02-2019, 08:57 PM   #61 (permalink)
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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: 20.77 mpg (US)
Thanks: 197
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Quote:
Originally Posted by Piotrsko View Post
Looks like Aircraft AN8 double flare to me......

Freebeard had a screw loose?
Lol dont we all.
The cooler end is -8JIC/AN (stock the factory remote mount ,bolted to mid-block and the trans adapter / motor plate) liquid to liquid transmission cooler) the original transmission inlet and outlet are 1/2"inverted flair on the drivers side the Allison is -8 on the passanger side.. Hulon Fox Transmissions Service came through today found me a 1/2" inverted flair union. One positive attribute of the big city( Dallas-Fort Worth) they have specialty shops that small towns can't afford to have.

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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


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


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Old 04-02-2019, 09:35 PM   #62 (permalink)
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My brother was first, that's the third time. I've used it once myself.

I thought it was weird that the Dasher has a radiator hose that is 1/2" on one end and 3/4" on the other. I easily.
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Old 04-07-2019, 05:07 PM   #63 (permalink)
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Join Date: Dec 2014
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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: 20.77 mpg (US)
Thanks: 197
Thanked 368 Times in 240 Posts

The Allison is significantly larger in the body required considerable amounts of clearancing to keep it from rattling and breaking sensors off


Final with paint

And the interior goes back in.


Stock bench seat bace/slides/brackets moddified for buckets and center console. +head room for a helmet lowered 3".

Pice removed,gap closedand welded.


Rear of bracket was too short to bring it down levle so ~2.5"was removed from the upper structure to maintain the seat angle


Finale results.


Would have made it easier at the inverted flare union was longer, but there's just enough Flex in the hydraulic hose
----
Red point5 all pic taken/posted in landscape, some are auto rotated 180° I can rotate the image in my phone but they still flip apon posting.
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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


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


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Old 05-10-2019, 03:55 PM   #64 (permalink)
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Join Date: Dec 2014
Location: Butte, Montana
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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: 20.77 mpg (US)
Thanks: 197
Thanked 368 Times in 240 Posts
It is unclear if the drop in efficiency is a result of the turbo change the transmission change or the fact that I was running between 70 and 80 mph.(80mph = 1837rpm 55 = 1263) 21.3 mpg avg on the 5000mi test drive. High 24.05mpg and low of 19.21 from Burlington Colorado to Cheyenne Washington by way of Pikes Peak(8000+' accent) the extra low 1st gear was a god send on the decent, the 1st gear in the dodge original trans was the equivalent of 2nd in the Allison and required excessive use of the brakes.
__________________
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


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


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Old 05-10-2019, 04:22 PM   #65 (permalink)
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So you've completed it and put 500 miles on it in the last month?
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Old 05-16-2019, 01:18 PM   #66 (permalink)
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Join Date: Dec 2014
Location: Butte, Montana
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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: 20.77 mpg (US)
Thanks: 197
Thanked 368 Times in 240 Posts
Quote:
Originally Posted by freebeard View Post
So you've completed it and put 500 miles on it in the last month?

Missed a 0. 5k test drive @an avg speed of 53-67mph avg. speed(moving avg. 70-80mph travel speed) in 1week approaching 6k on the 6speed . New highest speed achaved (with 1500-2000lbs payload under the cap)102mph in route home. Ill test to see if I have reached my current empty hp/aero load limmit. If so then pull the cap and see what the % of slowdown is.I dont think that I have enough gear even with the new 2.16 final vs 2.44 of the previous trans.
---
80mph 6th gear =1837rpm ( 9rpm below peek tq right in the BSFC point)
80mph 5th(.71od) =2138 (62rpm over peak hp)
__________________
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


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


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Old 05-16-2019, 05:58 PM   #67 (permalink)
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When it was in the wind tunnel, I saw a lot of buffeting. The rear end was doing a little dance at 80mph. Have you done anything to smooth that out?
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Old 05-17-2019, 02:26 PM   #68 (permalink)
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Join Date: Dec 2014
Location: Butte, Montana
Posts: 664

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: 20.77 mpg (US)
Thanks: 197
Thanked 368 Times in 240 Posts
Quote:
Originally Posted by freebeard View Post
When it was in the wind tunnel, I saw a lot of buffeting. The rear end was doing a little dance at 80mph. Have you done anything to smooth that out?
Yes
I changed the rear spring bushings. That made a night and day difference in the effert required to maintain lain centered travel with minimal input, by reduced the volume of yaw angle changes requiring steering input to correct, caused by varying side wind strength .
__________________
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


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


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Old 05-17-2019, 03:19 PM   #69 (permalink)
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Cool beans.

slowmover will approve.
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Old 05-17-2019, 03:36 PM   #70 (permalink)
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OD - '05 Ford Econoline
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I recall an earlier ecomodder attempt at Bonneville in 2012.
85 Jetta Non turbo diesel. He stopped here on the way out.

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