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

Build up of clean 92 cummins

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Old 12-21-2014, 11:08 PM
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Default Build up of clean 92 cummins

Hello, new to the forum and excited to finally be in the 12 valve family.

I recently picked up a very clean 92 w250 LE with the getrag 5 speed with 3.55 gears and only 250 k on the odometer. It's sitting bone stock right now but not for long as I have many plans for the truck and am going to need some help along the way.

My plan is to pull the truck into the shop and pretty much take it all apart as I am planning to paint it anyway. Plans for suspension are some custom built Alcan springs with enough lift that I can clear a set of 37" 12.50". I figure a 4"-6"

Some of the obvious stuff I will be doing for sure are
Fix KDP if not already been done
Denny T fuel pin or similar
4" exhaust with matching down pipe
PDR Intake or similar
3200 gov spring or bigger if recommened
Full set of gauges
Borg steering shaft


Now the other things I want to do but am less certain of are
New set of injectors, thinking about the DD B series injectors, either stage 1 or 2
New turbo, s300, hx 35, hx 40, really not sure at all about this
Airdog but unsure on what size to get
Intercooler tubes, unsure
New intake manifold, unsure
Beefier clutch for Get rag
Pump tweaks but will certainly need advice here
Also it needs a new steering gear box and would like something beefier than stock.

Basically wanting to build this thing up to make some solid horsepower but without sacrificing driveability and economy. Low egt's, just a very happy motor. Not looking to skimp on quality and not afraid to drop some coin and really make this thing sweet.

Let me know your thoughts and recommendations.
 

Last edited by trevmountain; 12-21-2014 at 11:20 PM.
  #2  
Old 01-01-2015, 11:53 PM
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airdog 100 should be PLENTY
and for a clutch i'm going with a southbend single disk. Southbend is very reputable.
i would be carefull with pump tweaks as the old pump can get a leak. May be better off to get a new industrial injection pump...
 
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Old 01-03-2015, 09:41 PM
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Why not get a mechanical lift pump? Much simpler imo.

Instead of getting "stage 1 / stage 2 injectors" You should look into a shop that tells you what the injector actually is.

Example being:

5x12 sac injector 145* spray angle. If you'd like a place I'd recommend shoot me a PM
 
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