I'm looking at putting an airdog on my truck and thinking about bypassing the hpop, how would I go about doing this. My future plans are single shot injectors, bigger turbo, water meth injection, I'm still wanting to use this as a daily driver and also pull tractors and gravity wagons on the farm, but I'm also wanting to do some sled pulls and drag races locally, as we're trying to get the local drag strip opened back up.

 

How do you plan to get the fuel psi needed to run the truck without an hpop? An Air Dog is a low pressure fuel pump with a regulated return.

 

An airdog 2 will get you the fuel pressure you need to get rid of the frame mounted fuel pumpp but nothing is going to bypass the hpop (high pressure oil pump). The hpop has nothing to do with fuel pressure as far as pumping fuel goes. It controlles the high pressure oil needed to inject fuel into the cylinder.

 

No hpop, no fuel psi into the combustion chamber, therefore the hpop is mucho importanto to fuel delivery.

 

Im not sue what you mean Karls03. The HPOP does not have anything to do with the fuel pressure untill the fuel reaches the actual injector. The fuel up to the injector is at MIN 45psi and can range all the way up to about 70psi. The HPOP is what creates the high pressure fuel that is injected into the cylinder. The 6.0L is not a common rail setup unlike the 6.4L and CR Cummins engines. Their is no high pressure fuel pump on a 6.0L. The Airdog 2 is plenty for a 6.0L. Although a more cost efective way IMO is to use an Airmotive A1000 and a home made fuel filter setup.

Disclaimer: I personally run a Airdog 100 and the stock pump along with the updated "blue spring" upgrade from ford and have no problem with that setup. My main reason for this setup is i wanted more filtration and had the AD100 on hand already.

 

Exactly, and this all comes back to my original question, if the OP bypasses the HPOP, how does he intend to raise the pressure to light off the air in the cylinders? 75 psi will get the fuel to the injectors, but it will not be near enough to make the truck start.

 

Im sorry guys. i was thinking of the wrong thing. i was actually thinking of the fuel bowl on top of motor. i know i can't by pass the hpop i was having a slow moment. so how can i bypass the fuel bowl on top of motor (if i can).

 

i have had a ton (haha) of problems with the air dog two kit
the hoses i had to cut back ...did not fit properly

and i am on my third pump in less than 4 years

 

Blonde moment forgiven. Search the 6.0 perforrmance forum, I posted a basic drawing of what it would look like before and after going directly from the ADII to the cylinder heads.

Nevermind, I found it:
https://www.dieselbombers.com/6-0l-p...it-2005-a.html

 

Single shot injectors? Are you in the wrong section? LOL. That's 7.3 talk.

You can certainly bypass the fuel bowl up top if you want, as long as you have some other way of regulating the fuel. IE an ad2, or an actual regulated return setup.