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Old 05-16-2019, 01:18 PM   #66 (permalink)
gumby79
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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
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.
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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/12/6 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


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The Following 3 Users Say Thank You to gumby79 For This Useful Post:
aerohead (05-18-2019), freebeard (05-16-2019), slowmover (05-18-2019)