Ford Powerstroke Diesel Forum banner

1 - 20 of 36 Posts

·
Registered
Joined
·
2,412 Posts
I did the intank mod like he talks about with the kit from ITP. It sure made my motor quite down and it added a second filter. I would do it again on any truck I own.

The pressure regulator mod is talked about on here. I think there is a post in the tech files about it.
 

·
Registered
Joined
·
2,412 Posts
I am watching that now. Looks like a ton of work and I have never seen anyone talk about it before. Wonder if the good it does is worth it? yes I agree, more flow = better, but how much better?

Maybe someone can chime in here? strokin, marty, CSI, scuffy?
 

·
John Wood Nut Swinger
Joined
·
3,413 Posts
Why is what I have to ask. I ran a fuel pressure gauge on stock injectors with a stock fuel system and did not notice any fuel pressure problems. 2psi drop is all I would get at WOT. I still have those same stock banjo bolts in my truck and I have B code injectors, I see a 0psi drop in fuel pressure at WOT.

Again I will have to ask, why? I just don't see the need. It can't hurt anything as long is you don't mess anything up doing it. My one concern is drilling the holes out and breaking it on reinstalling the banjo bolt. Plus I fairly confident that if you do the math, the 4 stock 1/8" holes outflow the 1/4" outlet in the banjo bolt.
 

·
What u talkin bout willis
Joined
·
2,724 Posts
Why is what I have to ask. I ran a fuel pressure gauge on stock injectors with a stock fuel system and did not notice any fuel pressure problems. 2psi drop is all I would get at WOT. I still have those same stock banjo bolts in my truck and I have B code injectors, I see a 0psi drop in fuel pressure at WOT.

Again I will have to ask, why? I just don't see the need. It can't hurt anything as long is you don't mess anything up doing it. My one concern is drilling the holes out and breaking it on reinstalling the banjo bolt. Plus I fairly confident that if you do the math, the 4 stock 1/8" holes outflow the 1/4" outlet in the banjo bolt.
YOUR MY HERO I WAS WAITING FOR YOU TO CHIME IN I DIDNT THINK THAT IT REALLY WOULD MAKE THAT MUCH DIFFRENCE IF ANY AT ALL
 

·
Registered
Joined
·
590 Posts
i thought is was to help with turbulence as the fuel is going through the holes and coming out the other side, resulting in a better flow to the injectors. it should make the pressure drop because it would (in theory) allow more fuel to the rails, so the pressure in the filter bowl would drop while trying keep up with the extra flow
 

·
Registered
Joined
·
108 Posts
i just did the fuel filter plunger thingy? i have a fuel pressure gauge and the frp mod and it made my pressure go up a little bit and i dont plan on starting it without a filter in it so why not take it out? i am also going to drill the holes in the 2 plugs in the heads tommarow and see what that does? i am all about the free mods!!!
 

·
Registered
Joined
·
2,412 Posts
Let us know how it works out and if you get any more pressure drilling out those plugs.

Where is your gauge hooked up at?
 

·
Registered
Joined
·
108 Posts
Let us know how it works out and if you get any more pressure drilling out those plugs.

Where is your gauge hooked up at?
ok i wil my gauge is the defuser kit and its hooked up at the fuel filter bowl,i got it when i was paying with the fuel pressure regulator shims,works good
 

·
Banned
Joined
·
722 Posts
rcnitrofreek.. did you do those mods
 

·
Registered
Joined
·
108 Posts
i did the fuel filter housing mod,and i tried the plugs in the heads but i cant get to the back passenger one cause i have a 4" down pipe and the rachet wont fit!!!! the down pipe was a ***** to get on there and i am nor going to remove it for this little mod??,ill just dp chip it and leave it alone and drive it,and when i want to get a 4-dr and have 500+hp ill get a dodge!!!!!!haha for real.
 

·
John Wood Nut Swinger
Joined
·
3,413 Posts
Like I said in my earlier post, this mod is not necessary. You don't need to use those fuel ports to make 500hp. The 1/8" NPT supply ports on the top of the heads are just fine. The bigger thing is getting rid of the stock fittings and the POS check valves.
 

·
Registered
Joined
·
108 Posts
Like I said in my earlier post, this mod is not necessary. You don't need to use those fuel ports to make 500hp. The 1/8" NPT supply ports on the top of the heads are just fine. The bigger thing is getting rid of the stock fittings and the POS check valves.
where are those check valve fittings and what do they do?
 

·
John Wood Nut Swinger
Joined
·
3,413 Posts
If you take the stock fuel line off, you will find a small check valve attached to the head. In side it has a 3/32" hole that fuel flows through. You can take the guts out of the valve and put it all back together. Or you can make new fuel lines(like I did) using #4-1/8" NPT JIC fittings and new #4 stainless braided hoses.

Here is a fitting I used on the head:


Here is the fuel bowl with the #4 jic - 1/8" NPT fittings in it:
 
1 - 20 of 36 Posts
Top