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Old 03-07-2019, 12:45 AM   #52 (permalink)
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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 24 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)
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Android Vs internet flipping Gremlin strikes again sorry guys just look at it sideways everything in my blasted phone says the right way is up I can turn the picture anyway I want and it still comes in sideways when I upload.

Step 2 on transmission installation gut the interior. Hard to cut the floorboard with the carpet in place can have to rais the floorboards approximately 5 in in the front to clear the 5.5" flywheel housing and a couple in the back.

Florebord hangs down to mimic the 46RH profile.

46RH on a 4x4 block to center on crank shaft centerline due to deep pan on Allison.
Notice how much flatter the Allison profile is, almost flat from the flywheel howsing to rear output.

The allison 4speed in pic is 1-2" shorter than the 6 at the rebuilder. Drive lin will have to be lengthened.
Took the core into an Allison certified repair facility to have it Dyno load tested to find out what I had...
Some of the sensors had been removed from the top side allowing water to get in causing the clutch packs to delaminate as they use a water-soluble bonding agent to attach the friction material complete rebuild required.
Standard rebuild 530 TQ limit $2,400
This will only allow the 10 horsepower gain before reaching the limit has the unique characteristic of the first generation Cummins Dodge is a 3 to 1 torque to horsepower ratio vs 2nd gen and on have a 2 to 1 torque to horsepower ratio this is due to internal differences between the ve and the P pump.

After discussing with the builder what the dyno results were and what my intentions are Bonneville we agreed that an upgrade was necessary to ensure a long and happy life in the Allison extra clutches in every year Harden steals in all except for C2(C2 is damaged by hardened lugs on the steals, I thought about asking him to have the Lugz annealed should I would still get the hardened faces without the drum damage). C2 steals will still be replaced with a thinner units to allow room for the additional clutches. Adding a g solenoid which helps prevent damage that was evident inside the transmission by bypassing access line pressure through the cooler at idle. Replacing the broken torque converter housing. Swapping out the tail shaft housing for a tail unit that has the crossmember mount built in allowing me to cut the big ears off of the SAE #2 flywheel housing, as well as internal Park gear has been verified. All new sensors. he assures me that this will handle a 1000 TQ. Sounds like a massive amount but remember 3 : 1 which means I'll have keep it under 333HP. Didn't really want to exceed 350HP as doing so will start severely compromising the Integrity of the engines lifespan. Quote was under4- 5 grand out the door all I need is the computer and harness from Jason in Montana
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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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