5.9L 12V Performance Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps Related to Performance and Longevity

New to Cummins, former F250 owner.. have questions!!

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Old Feb 28, 2010 | 03:30 PM
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Default New to Cummins, former F250 owner.. have questions!!

Well hello guys. Never though I'd be the owner of a cummins, much less a dodge, but I found a good deal and I jumped on it. I regret selling my 7.3 6spd psd, so I went on the hunt for another. I found a deal on a cummins before I found another Ford so here I sit with my new '97 Cummins.

I have a LOT of questions, and will be making lots of posts (yes I always search). There are a lot of differences between the International and Cummins motors, different terms and different strong points and weak points, so I'll do my best to understand your guys lingo.

I've done a lot of researching before buying this truck and though it IS a project, it still runs fairly great and drives well. It's SO much slower than my old PSD though, and my psd only had an exhaust and tymar 6637 (bhaf to you cummins guys) filter.

I look forward to your guys input and help, and hope to contribute back as well!

Matt
 
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Old Feb 28, 2010 | 03:32 PM
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Welcome Matt - you will not regret the Cummins - with very little investment you can make 300+hp. And a 97 5 speed is a great platform for starting with.

I will try to dig up some links for you.
 
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Old Feb 28, 2010 | 03:45 PM
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Thanks Dr. Evil! I hear that basic intake, exhaust, star wheel, fuel plate will be at or over 300hp? Dont know about torque though.
 
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Old Feb 28, 2010 | 05:25 PM
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look into a good clutch also... that way you can add power without breaking stuff. good choice on the cummins

---AutoMerged DoublePost---

O and a good set of gauges are safe to have too!
 

Last edited by monster12valve; Feb 28, 2010 at 05:25 PM. Reason: Automerged Doublepost
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Old Feb 28, 2010 | 05:30 PM
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Ya I'm working on gauges. Is fuel pressure somethign that NEEDS to be monitored liek in teh 24v's?
 
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Old Feb 28, 2010 | 05:33 PM
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no. the egt and boost are the most important on a 12valve. they arnt as fuel pressure sensitive as th 24valve
 
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Old Feb 28, 2010 | 06:11 PM
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Ok exactly as I though. I'll be getting gauges... some time
 
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Old Feb 28, 2010 | 06:34 PM
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Originally Posted by monster12valve
no. the egt and boost are the most important on a 12valve. they arnt as fuel pressure sensitive as th 24valve
I disagree, on a 12v fuel press is very important. Fuel lubes the plungers and barrels of the ppump and unlike the 24v the 12v have to have fuel press to run.

Originally Posted by 85_305
Ok exactly as I though. I'll be getting gauges... some time
If your near or in MD I can help you with your 300hp goal
 
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Old Feb 28, 2010 | 09:03 PM
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i'm in Buffalo NY.

So fuel pressure needs to be regulated on the 12v is what you are saying? I know on my powerstroke fp isn't an issue generally
 
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Old Feb 28, 2010 | 09:09 PM
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whats your goal/ use for truck?
 
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