OBS 7.3 engine and pickup build HP goal is in the 600HP range

lincolnlocker · Dec 17, 2011

Hpo should be around 500 psi at idle and most set the fuel pressure at 60-65

Powerstroke Cowboy · Dec 17, 2011

lincolnlocker said:
Hpo should be around 500 psi at idle and most set the fuel pressure at 60-65

I am going toset my fuel at 65 or 70psi I thought it might be 500psi to start..

Is there a spiecal fuel psi needed to start though????

907DAVE · Dec 17, 2011

It will start and run with hardly any fuel pressure, but unless you throw a gauge on there you will never know what fuel pressure is doing.

Your truck should run and idle decent on stock programming (even with dual IPR's), so dont worry too much about that.

I would like to see ICP, IPR% and fuel pressure before moving forward.

Powerstroke Cowboy · Dec 17, 2011

I got the the ICP and IPR% I will show it in video form..

As for fuel Pressure. I was one fitting short.. AND the local store was closed

BUT after you see the ICP and IPR% I think you will say fuel for shure.. I think the AirDog is not working right. It never shuts off and it is suposed to pressure up then shut off.. Never happens..

Video is being uploaded as we speak..

907DAVE · Dec 17, 2011

Have you double checked the AD2 install?

I would go over everything again to be sure it is plumbed correctly.

Powerstroke Cowboy · Dec 17, 2011

907DAVE said:
Have you double checked the AD2 install?

I would go over everything again to be sure it is plumbed correctly.

Yes sir I have.. I did it a couple time today to be shore of myself.. I want to get the Fuel Pressure gauge hooked up. Then I will no for shure.. It might just need the regulator adjusted?? Who no's. The only way to tell is to get a gauge on there..

Video is 24% uploaded..

Powerstroke Cowboy · Dec 17, 2011

Here is the video of ICP & IPR%

It is black for the first 4 seconds then it comes up..

Powerstroke Cowboy · Dec 17, 2011

Sorry guys I should have explaind what I did in the video.. First four seconds are dark. I left the cap on the lens, I let it idle for a little bit then kicked it up to high idle then back down and so on a couple more time's, The I reved it up to about 1900 to 2000 RPMs then back to a idle.. Then I shut the engine off. Let the ICP pressure clear on the screen. Theb tried to start it back up.. It would fire then die fire then die. Then quit firing all together.. BUT the gauge still would show ICP when cranking.. Just would not start..

To me the ICP looked good running and just cranking.. As for the IPR% the number the gauge showed, That would be the persent the IPR is closed right??? What I mean bu this is, the number it shows is the % of oil being used.. Am I right on this?? If so I would think the IPR% Looks ok to me..

I just need sombody to help that knows a lot more then me in this subject.. After all this is the first time for me..

907DAVE · Dec 17, 2011

Either your going to have to find another way of measuring ICP, or you ICP sensor is wacked out.

My guess is that ScanGauge is not displaying properly.

Powerstroke Cowboy · Dec 17, 2011

907DAVE said:
Either your going to have to find another way of measuring ICP, or you ICP sensor is wacked out.

My guess is that ScanGauge is not displaying properly.

Why do you say this??? IPR% to high??? Or to high of ICP number's when just cranking???

I have a new ICP sensor I could stick on there...

Maybe I have My dual IPR harness made up wrong???

Thanks.

907DAVE · Dec 17, 2011

ICP is never that stable, and is always fluctuating a bit - which could just be caused by a slow sample rate with the Scangauge. But ICP should read zero or close to it after the motor has been shut down - not +3500 PSI. It should also raise and lower with RPM's, which I do not believe it did.

Also, IPR% should increase to increase pressure. In that video it was only 3% or 5% when the ICP was sky high.....something is not reading right.

Did you wire your IPR's in series?

Powerstroke Cowboy · Dec 17, 2011

907DAVE said:
ICP is never that stable, and is always fluctuating a bit - which could just be caused by a slow sample rate with the Scangauge. But ICP should read zero or close to it after the motor has been shut down - not +3500 PSI. It should also raise and lower with RPM's, which I do not believe it did.

Also, IPR% should increase to increase pressure. In that video it was only 3% or 5% when the ICP was sky high.....something is not reading right.

Did you wire your IPR's in series?

That is what I was wondring

As far as IPR harness. I wish I would have took a picture after i did it..

Lat me see if I can "make" a picture for you... Not sure what youmean by series?? do you mean same wire to same wire???

907DAVE · Dec 17, 2011

Basically you spliced the second IPR connector in line with the other, so it makes one big loop?

Powerstroke Cowboy · Dec 17, 2011

907DAVE said:
Basically you spliced the second IPR connector in line with the other, so it makes one big loop?

No That is not what I did... From what you just said.. I did it wrong!!! That could be some of the trouble..

Here is how I did it..

Factory is horizontal. The added one is at a angle..

Same side of the conector to same side..

Pardon the painting... I am not a artist.. LOL

Powerstroke Cowboy · Dec 17, 2011

It should look like this.. Right???

http://good-times.webshots.com/photo/2340610330091510438dOdiGa

907DAVE · Dec 18, 2011

Powerstroke Cowboy · Dec 18, 2011

907DAVE said:
Yup!

Ok sounds good!!! I will change out my wiring then.

This could be half the trouble I am halving!!!

Still have fuel problem though..

Thanks for your Help Dave!!! I really appreciate it..

Dieselboy. · Dec 19, 2011

Where abouts did you put your drain and feed for the big turbo ?

Powerstroke Cowboy · Dec 19, 2011

Dieselboy. said:
Where abouts did you put your drain and feed for the big turbo ?

It all depends were I stick the turbo... As of now If I stick it were i had it, the drain will go right into the passanger side Valve cover.. As for the oil feed.. ot shore yet. I was tempted to run both off the factory port. BUT I do not whant to risk not having enough oil for both charges, and taking the bearings out of them.. Right now. my only fear is that the LPOP will not be able to keep up with a second charger and second HPOP at the same time..

I still have to test that. after I deside where to stick the second turbo feed..
I just have not found a good spot yet.. I havew been told there are oil plugs on the side of the block. Just not shore which ones they are.

Powerstroke Cowboy · Dec 30, 2011

I changed my IPR wire harness to like it shows on the photo I linked to.. Still does the same thing. Shows 2800 plus when cranking allong with 14.4% IPR...

I will start and run, BUT after you shut it off it will not start back up.. I does just like it did in the video I made...

If both IPR's are pluged. Will it still start???