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Old 07-01-2018, 03:37 AM   #51 (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)
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Quote:
Most "H" or fasters speed rated tires eather have no load capacity or are 28" or smaller or10-30"wide drag rears.

To day I've found some options

32.18"D 235/55r22 (104w) 1984lbs 168mph $154 usd


31.41"D 275/25r26 (98w) 1653lbs 168mph $215 sud


30.04"D 255/50R20 (109Y) 2271lbs 186mp
From #14
http://ecomodder.com/forum/showthrea...0-a-35805.html
There is also a 32.68"D 315/35R24 w
Stock 31.7"D 235/85R16 LT S speed rating. Yielded 87.14mph 1:03279 standing mile.
What kind of impact should I expect ?
Going to a smaller speed rated tire requires installing a Bonneville specific quick change rearend for gear, just to get to 130mph @2500 RPM.

__________________
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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