Injector Testing Today........ - Page 2 - Diesel Bombers



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

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  #11  
Old 09-20-2009, 02:54 AM
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Quote:
What is a SAC nozzle?
The sac nozzle is on the left,the VCO is on the right.

The VCO is more common with the 12v applications as they are more emissions friendly.

The sac is used more in Europe where emissions are not as enforced and when used here they are mainly a competition injector due to excessive smoke.

When you hold a sac nozzle up you can actually see through the tip from one side to the other as the pintle never covers the injection orfices.

I think thats close enough.

Quote:
what does it mean when they are seat a 270 bar and 300bar?
The pressure that the injector is set to pop and release the fuel into the engine.
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Injector Testing Today........-nozzle.jpg  

Last edited by Hammer; 09-20-2009 at 02:56 AM.
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  #12  
Old 09-20-2009, 03:05 AM
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270 300 that is like right around 4500 psi aint it...if IIRC
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  #13  
Old 09-20-2009, 12:25 PM
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this is so cool 536 horse daily driver hows the single 66 with a trailer?

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539 oops

Last edited by 12valvetater; 09-20-2009 at 12:25 PM. Reason: Automerged Doublepost
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  #14  
Old 09-20-2009, 12:47 PM
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this is so cool 536 horse daily driver hows the single 66 with a trailer?.
I have only towed one time with the big single with any type of weight and distance.Late last fall I went into Upstate PA to retrieve my sons Jeep Cherokee which had broken down on I-81 at the Pa/NY border when it lost the transmission.It was towed home on a open trailer down through the Endless Mountains of Upstate PA and then down over Hazelton Mountain.I had no issues with moving the load and had no surge issues while towing either and it actually performed alot better than I expected.I did not know what to expect when we left to go get him and other than a few smoke trails going up the bigger hills,egts were manageable.I will admit though since I do drive truck for a living I do know what to look for when towing on grades and know what I need to do to prevent any issues while towing.I know this,after the Jeep was repaired at the shop all I did for a couple of days was listen to him complain about how he had to clean the front of his Jeep up from all the soot,LOL.

I have driven this truck powerwise as a daily driver for the last 3 years.I take it everywhere and am not afriad to jump in it and drive to the West Coast if the need arises.When I started my build years ago I made sure that the combination had to have the ability to daily drive or I wasn't going to go any further.I have taken the truck out into the High Desert area out West on vacation and its been down into the valley in Arizona for visit with friends.Its a pleasure to drive and at 208,000 miles and the last 100k like this I would not want it any other way.I think the next thing I am going to do is hang a set of twins,then spruce up the outside finish some since its starting to show its age now and keep on going as I want to se it get to 500k.

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Quote:
270 300 that is like right around 4500 psi aint it...if IIRC
270bar is around 3900psi.
300bar is around 4400psi.

Last edited by Hammer; 09-20-2009 at 12:47 PM. Reason: Automerged Doublepost
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  #15  
Old 09-20-2009, 01:06 PM
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Quote:
Originally Posted by Hammer View Post


270bar is around 3900psi.
300bar is around 4400psi.
very nice hammer what are the factory pop presures? 2200-2300ish correct? if your hittin 3900 and 4400... you gotta love P-pumps... factory pressure would destroy the VE on my old girl
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  #16  
Old 09-20-2009, 01:16 PM
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are you planning on changing the timing with the new injectors?
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  #17  
Old 09-20-2009, 01:29 PM
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Quote:
are you planning on changing the timing with the new injectors?
I have the timing now at 20 degrees and have been running it that way for the last couple years.I know that a increase in timing will bring the power up some but will delay the power swing and it will lower the torque number and compromise drivability somewhat.
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  #18  
Old 09-20-2009, 01:52 PM
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Quote:
Originally Posted by tower_ofpower View Post
what are the factory pop presures? 2200-2300ish correct?
260BAR or 3770psi.
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  #19  
Old 09-20-2009, 02:45 PM
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Quote:
Originally Posted by Hammer View Post
I have driven this truck powerwise as a daily driver for the last 3 years.I take it everywhere and am not afriad to jump in it and drive to the West Coast if the need arises.When I started my build years ago I made sure that the combination had to have the ability to daily drive or I wasn't going to go any further.I have taken the truck out into the High Desert area out West on vacation and its been down into the valley in Arizona for visit with friends.Its a pleasure to drive and at 208,000 miles and the last 100k like this I would not want it any other way.I think the next thing I am going to do is hang a set of twins,then spruce up the outside finish some since its starting to show its age now and keep on going as I want to se it get to 500k.

All i can say is wow i think this is great i could defiantly learn alot from you
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  #20  
Old 09-20-2009, 03:10 PM
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Great Thread! Thanks Andy!
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