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Old 08-09-2017, 01:56 PM   #36 (permalink)
gumby79
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Join Date: Dec 2014
Location: Butte, Montana
Posts: 691

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
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: 20.23 mpg (US)
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Galvanic action

Adding brass/copper to your systom could cause a corrosion problem. Theas 2 meterals were removed from the cooling system with the introduction of Al rad. It took the manufacturers a few years to figure it out . How ling wi it take to decime a problem? Dono... 3 years on my '79K-20 with a 4core Al rad. and copper/brass heater core no coolent related trouble.
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An idea to make your sealed chamber.
Braze up your shape (3sides 4th is the trans case). Use some gas tank sealer epoxy.
This will remove the air/water tight requirements, making your welds structural only reducing the likelihood of a contamination leek. Oil has soked into the metal and will surface when heated.
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add a trans temp Gage.
Add codes for cooling function, to allow lower oil weight without the threat of over heat failure in summer.
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Not enough rum time to justify this mod???
Add a pump .
Im shure thar you have already exploited the low hanging fruit (block heater). With a relatively short commute lack of heat bulid up is what your trying to fight. Set the circ pump to come on after the motor is warmed(on the plug)
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Alternative to a jacketed heater.
Use a tube/fin or stacked plate type cooler were you want the jacket then insolate . Option to improve heat transfer fill the fins with Al chips/shavings/ powder improving the contact patch with the cooler and trans case as air space only transfer IR heat (slower)

Well enough ideas for now.

Dream Big Chisel Down To Reality
__________________
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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