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

Trying To Figure Out The Mod Path For My Dodge

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Old Jul 1, 2008 | 04:32 PM
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Default Trying To Figure Out The Mod Path For My Dodge

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OK... I picked up this bad boy last weekend. I want to "enhance" it's power. I don't want to get too crazy with it. It has an automatic transmission which is the weak link right? I was in the chat room saturday night and was told it would hold 700 ft-lbs... is that about right?

My brother has been into diesels since the beginning of the performance trend and has been giving me suggestions. I've also been doing a lot of reading lately and so far the plan is to..

4" turbo-back exhaust (tell me a good one for the first gen)
turn up the fuel screw (a little)
3200 rpm governor screw
K & N filter (maybe... let me know if there are better ones)
shift kit (what is a good kit?)

I guess the question I am trying to ask is: What are the most cost efficient mods for the first gen motor? I want to add "a moderate" amount of power, but I don't want to kill the transmission either. I also don't want to do expensive upgrades to the transmission either. I guess I am more focused on removing restrictions to free up power, improve drivability, and improve fuel economy.

This truck is not a Daily Driver for me, although I wouldn't mind it, I like having a truck after so many years of driving small imports. It is used for towing or for camping.

Interested in your opinion...
 

Last edited by The_Head; Jul 1, 2008 at 04:39 PM.
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Old Jul 1, 2008 | 04:52 PM
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A few do a BHAF.
 
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Old Jul 1, 2008 | 07:03 PM
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if your not looking to do tranny mods then just get a better filter and open the exhaust up i think that would be the safe way to go. i think that a 4" inch aluminized would work well and save you a buck.i prefer a dry filter with a pre filter over an oiled filter. has the tranny ever been rebuilt if not how many miles are on the stock tranny. gauges are never a bad investment. a pyro,trans temp and boost guage if you start to turn up the pump.
 

Last edited by stack_boy; Jul 1, 2008 at 07:19 PM.
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Old Jul 1, 2008 | 10:25 PM
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It's got 123,000 miles.. and yeah my brother told me he wouldn't turn it up until I got at least an EGT gauge for it.
 
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Old Jul 1, 2008 | 10:26 PM
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Gauges First !
 
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Old Jul 1, 2008 | 10:45 PM
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I hear good things about the 3200 rpm governor spring.
 
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Old Jul 3, 2008 | 09:42 PM
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I'd do a BHAF and a 3200 spring first you can usually go to the collar on the fuel screw without worries. If you're gonna spend some money, I'd go for a torque converter and shift kit before the exhaust or any other costly mods. When you do the exhaust, Stans Headers makes an affordable kit.
 
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Old Jul 3, 2008 | 11:47 PM
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What year of truck is it??
 
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Old Jul 4, 2008 | 12:12 AM
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It's a '92

What is this fuel pin I keep hearing about? It gives you 24 horsepower or something like that.
 

Last edited by The_Head; Jul 4, 2008 at 12:17 AM. Reason: Added a question
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Old Jul 4, 2008 | 12:27 AM
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phoenix hard parts.com for the torque converter and shift kit, get 4 disc w/extra low stall, and trans-go shift kit,{if need be they can build you a hot rod tranny, very inexpensively, w/ warranty }
strait pipe the exhust for now untill you upgrade the turbo,
big honkin air filter baldwin part number - PA2820 {half price of the napa one}
and check out dieselpower.com and click on project rust bucket for turning up the rotary pump and replacing the fuel screw and govenor spring for about $40.00 there ya go bro
 
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