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

DIY Boost Elbow

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Old May 27, 2012 | 07:34 PM
  #1  
oct6454's Avatar
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From: Gig Harbor WA
Default DIY Boost Elbow

I can't seem to find where the DIY boost elbow instructions went!? It was a long detailed post with how to build a boost elbow from your local hardware store....

Thanks, Oliver
 
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Old May 28, 2012 | 10:29 AM
  #2  
Cordova2013-12 Valve's Avatar
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From: Walker County, 'Bama
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Use a needle valve, that's what I've seen
 
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Old Jun 1, 2012 | 08:30 PM
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From: valley view tx
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i know on the 6.0 powerstroke you can make a kinda boost fooler to keep from throwing overboost codes with some type of regulator. i will see if i can find anything on that. i think it would work about the same but seem to remember that they weren't all that cheap. i know the elbows can be had @ 19.99 on ebay so.
 
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Old Jun 1, 2012 | 11:20 PM
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EasternAggie's Avatar
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From: Broken Bow, Oklahoma
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Originally Posted by Cordova2013-12 Valve
Use a needle valve, that's what I've seen
You mean like this right here?



Thats a freakin good idea. The problem I have with the set screws is its a pain to get to and won't stay in place once I set it, I've even tried using teflon on the threads. We have these valves at work and they're a son of a gun to turn so I know it wouldn't move.
 
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Old Jun 2, 2012 | 12:57 AM
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I put an air tool regulator on mine and it is all the way closed. Just keep an eye on your boost pressure under hard throttle and back out a little if you go past 30psi or so with a stock turbo. I have to back off because of EGT long before I ever get close to trouble with boost.
 
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Old Jun 2, 2012 | 09:15 PM
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EasternAggie's Avatar
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From: Broken Bow, Oklahoma
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Originally Posted by dezzrats
I put an air tool regulator on mine and it is all the way closed. Just keep an eye on your boost pressure under hard throttle and back out a little if you go past 30psi or so with a stock turbo. I have to back off because of EGT long before I ever get close to trouble with boost.
I would rather have it set up right and be able to have it to the floor and see 35psi max and not have to worry about backing out. With no fuel plate and a 4k gsk I could see 48psi on my 35/40 hybrid back when my gate was unhooked, so I backed my fuel plate out so that I wouldn't overboost until I got my gate hooked back up. When injectors go in next week I'm going to have to get my wastegate working again.
 
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