5.9L Rotary Performance Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps Related To Performance And Longevity

New 89 D-250.....upgrades?

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Old Apr 14, 2011 | 11:46 PM
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Default New 89 D-250.....upgrades?

I recently puchased an 89 dodge 3/4 ton 2wd, 5spd manual and was wondering what upgrades to do to it to make it faster, i think that the injection pump was turned up some, because it smokes some, and its kinda peppy, but i want to make it faster without spending a ton of money, probably a 1,000 dollar budget, what is safe to do and still have it as a daily driver.

I know it will never be great on launches, because you cant get all of the power to the ground without burnin out....but it is what it is

I am already planning, and getting ready to order a boost and egt gauge for it

Also, it seems like the turbo output horn and intake manifold is really small, its like 1.5" or maybe 2" seems restrictive

Thanks
 
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Old Apr 15, 2011 | 01:17 AM
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one of the first thing ya need to do is tab the kdp. your on the right track ordering gauges right away. thats one of the first things i buy when i get a new truck. next would be pump mods. look in the ve section, its full of posts bout how to turn them up. good luck and have fun
 
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Old Apr 15, 2011 | 01:49 AM
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What does it mean to tab the kdp?

And thanks, I plan on it, mostly gunna just be my summer toy/daily driver, gunna weld up the spider gears in the diff too i think because right now its a 1 wheel wonder
 
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Old Apr 15, 2011 | 06:12 AM
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Look at Fuel pins as well (Denny T) or possibly (M&H)... best $100 i have ever spent.
 
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Old Apr 15, 2011 | 07:58 AM
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KDP= killer dowel pin

the kdp is a pin used for assymbly on the 12v and 24v trucks. in the 12v, both ve and p7100 applications it is well known of them to work there way out. if it works its way out, a couple things could happen, one, it could fall all the way to the pan and not hurt anything. this is the least common. two, it gets caught between the cam gear and the timing case and cracks the timing case resulting in the whole front of the mootor being dissassymbled

to fix the problem, u have to pull the timing cover off the front of the motor. all in all it should take roughly 3 hours the first time you do one. its not bad. here is a thread that tells more bout it

https://www.dieselbombers.com/1st-ge...dowel-pin.html
 
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Old Apr 15, 2011 | 01:00 PM
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Gauges
KDP
3200 Spring
Pump Mods
Fuel Pin
Used Turbo (Compressor upgrade otherwise)
Convertor (Hughes Is good and affordable)
Injectors If you have anything left....

Would make a nice truck!
 
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Old Apr 15, 2011 | 01:11 PM
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does a gov. spring raise top speed?/
 
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Old Apr 15, 2011 | 01:44 PM
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I honestly didnt know the VE had KDP... wow... better get that fixed!!!!
 
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Old Apr 15, 2011 | 02:42 PM
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Originally Posted by 92smokincummins
does a gov. spring raise top speed?/
yep. And improves day to day drivability 100%
 
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Old Apr 16, 2011 | 01:06 PM
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Thanks for all of the advice
I'm gunna do that kdp asap!
What should I take the turbo off of if I do use a used turbo?, if I get a new one, where should I get it from? Any recommendations?
I read that since my truck is non intercooled, it has bigger injectors? So injectors could wait a little while righ?
How does a gov spring improve drivability?

Thanks for all of the help
 
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