1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

LOOKING FOR AN IDEA

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Old 07-31-2009, 11:18 AM
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I'm getting ready to put a after cooler on , was wondering if anyone else all ready had one on their truck, looking for ideas for the hood, I have to cut the hood so that it will fit.
 
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Old 07-31-2009, 02:00 PM
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Air-to-water aftercooler?
 
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Old 07-31-2009, 02:58 PM
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yes, I have the inter cooler and know i want to put a after cooler on as well, to just play around with and see what happens
 
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Old 07-31-2009, 08:47 PM
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Id plumb its own coolant system and pump.all though theres been discussion if there are any gains.using the engine coolant would defeat the air to air.A big *** air to air is my choice.
 
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Old 07-31-2009, 09:01 PM
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One day I'm going to build a truck with a REAL air-to-water aftercooler, like one off a QST or QSK, tucked in under the frame rail.

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The first gen aftercoolers have been used before. The big power guys that were using them found that they hindered flow too much to be productive for big power; however, on a truck not making 400+ horsepower I imagine you would see advantageous EGT drops.

It works best to have the aftercooler on a separate system. Cummins' big stationary engines above do it that way; separate water pump, separate thermostat.

On my first gen, I'd really like to take the injection lines bent for use with an aftercooler and build a big fan-shaped plenum in their maw.
 

Last edited by Begle1; 07-31-2009 at 09:03 PM.
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Old 07-31-2009, 09:29 PM
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Originally Posted by Begle1
The first gen aftercoolers have been used before. The big power guys that were using them found that they hindered flow too much to be productive for big power; however, on a truck not making 400+ horsepower I imagine you would see advantageous EGT drops.

It works best to have the aftercooler on a separate system. Cummins' big stationary engines above do it that way; separate water pump, separate thermostat.

On my first gen, I'd really like to take the injection lines bent for use with an aftercooler and build a big fan-shaped plenum in their maw.

Brian (KTA) made over 600hp with his....
 
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Old 07-31-2009, 10:05 PM
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If you want a water to air on a 6BTA, look at the marine setup...
 
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Old 07-31-2009, 10:14 PM
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Originally Posted by RSWORDS
Brian (KTA) made over 600hp with his....
Didn't Gilbert and Seeker both see gains from loosing them?
 
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Old 08-01-2009, 09:51 AM
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dunno... but brian was running one when he did his 627. I do know Bill has been looking for another one....
 
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Old 08-01-2009, 10:16 AM
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I know at least one person got more power when they lost it.
 


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