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Old 03-18-2019, 12:29 AM   #56 (permalink)
Master EcoModder
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Join Date: Dec 2014
Location: Butte, Montana
Posts: 714

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: 21.86 mpg (US)
Thanks: 206
Thanked 416 Times in 269 Posts

transmission arrived thursday
The trans took a couple extra days. He has a load cell / trans dyno and found a cracked valve body making the trans miss behave then had to source and mod it for the shift kit reinstall and redyno. the trans has the Alto G3™ Friction kit including Kolene® Steels .
5k final price 24 month/ unlimited mile warranty (includes Bonneville use). Included 3 disk Torque converter , GM bell, rear mount tail shaft housing, upgraded internals , and swapping the 3rd gen(5sp pre 06) Allison for a 4th gen(6sp 06+) . after further research I found an individual that had already transplanted an Allison into a a 1st gen cummins he said that and he only had to do minor clearancing to fit the beast. so "I changed horses mid stream" and decided that the extensive mods and body lift required for the SAE#2 bell was not going to help my end goals for Bonneville. This decision had a price of $1495.00 for a cummins to GM bell Allison motor plate with the proper SFI 29.3 flexplate (SFI required by Bonneville regs to pass 150mph). FromCa Conversions, box including $ 2500.00 6 speed wire harness kit with tap shift ( manuel mode) $ 295.00 throttle position sensor kit $ 500.00 2 line indicator PRNDM/123456, should be arriving next week.
If SFI is not required then Summit has a motor plate with non SFI flexplate
for (as of 3/19 ) $995.99.

the info although does not help me as I already took the leap it will help the next person that used my build as reference for there Allison conversion. A stock Allison would be fine (and I was going to run the 5sp with 6 sp programing had it tested ok) if the HX35W/12 did not cause my TQ # to exceed ~535 TQ (only 44ft lb buffer fron old turbo) seat of the pants says it would have been risky. dyno run will tell the tell.
redpoint5 thank you for the tip. what about the ones that load upside down?
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

'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 (03-20-2019), BamZipPow (04-03-2019)