Dfuser Fuel products
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Logistics Pro
Joined: May 2004
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Dfuser Fuel products
Interested in getting opinions about dfuser stage .5 (front fuel feed lines) and their crossover line....I was really gungho on purchasing trusted performance's stuff but trusted is backordered on the crossover then I found this vendor......any feedback from those that have the items I am looking at would be appreciated.
Thanks
Joe
Thanks
Joe
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Logistics Pro
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DUH! Here you guys go......I forgot I live in my own head.
2003-2007 Ford F250 F350 Powerstroke 6.0L Turbo Diesel Regulated Fuel Kit
I am particularly interested in the stage .5 which is larger feed lines to the heads.......and MAYBE the crossover line....not sure if I really need that though since the heads do that anyway.....link for that:
DFUSER Performance Diesel - Crossover Line
I originally was going to go with this but like the fact of the "plain" look for smog visual red flags if you know what I mean.
DFUSER Performance Diesel - Stage I Fuel System
and the crossover kit....but again not sure if I even need it...which they are backordered forever from what I understand:
DFUSER Performance Diesel - Crossover Line
2003-2007 Ford F250 F350 Powerstroke 6.0L Turbo Diesel Regulated Fuel Kit
I am particularly interested in the stage .5 which is larger feed lines to the heads.......and MAYBE the crossover line....not sure if I really need that though since the heads do that anyway.....link for that:
DFUSER Performance Diesel - Crossover Line
I originally was going to go with this but like the fact of the "plain" look for smog visual red flags if you know what I mean.
DFUSER Performance Diesel - Stage I Fuel System
and the crossover kit....but again not sure if I even need it...which they are backordered forever from what I understand:
DFUSER Performance Diesel - Crossover Line
Post Fiend
Joined: Oct 2009
Posts: 12,123
Likes: 35
From: N. Fort Worth, tx
Diesel Part # IDPRegReturn - Ford 6.0L PSD Regulated Return Kit - Diesel Performance Parts
this is the regulated return that I hear the most about. I have no experance with it what so ever.
I myself dont care much for tiing both heads together. I find it a wast of both time and money ymmv though.
I can get in to the negitives of the setup if you really need. but to make it simple both banks always have the same pressure in them anyway do to both sides being feed from the same sorce. low pressure will effect both heads equally all the time.
what is your end goal?
I have had 0 issues to date running 450+ hp/750+ tq on a stock system, Im maxed out as far as I care to go on stock fuel,injectors and turbo.
the only thing I can do at this point would be a garrett powermax turbo with out making big changes.
this is the regulated return that I hear the most about. I have no experance with it what so ever.
I myself dont care much for tiing both heads together. I find it a wast of both time and money ymmv though.
I can get in to the negitives of the setup if you really need. but to make it simple both banks always have the same pressure in them anyway do to both sides being feed from the same sorce. low pressure will effect both heads equally all the time.
what is your end goal?
I have had 0 issues to date running 450+ hp/750+ tq on a stock system, Im maxed out as far as I care to go on stock fuel,injectors and turbo.
the only thing I can do at this point would be a garrett powermax turbo with out making big changes.
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Logistics Pro
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NEGATIVES? Sure I would like to hear anything from a guy who works on them all the time....
In regards to the regulated return....I did my homework on that too....and along with talking to the people that manufacture performance products, they even deter me from buying their RR since I am not running a NON regulated pump and way RAD injectors or performance mods. The stock system is already regulated and in their opinion the most important thing is adequate fuel pressure, clean fuel and larger volume lines to feed the front of the heads......granted that my fuel delivery maintains the proper pressures. It is a long argued topic. I would love to have a RR kit and was really gungho on getting one, but after all the reading (not to stir the pot)...........It is basically a nice to have....thats it.
I was not really conviced with the crossover kit and probably will invest my money in beer instead
...it just seems redundant IMO.
My main goal is longevity for my motor. I like the idea of sending more fuel quantity to the heads. I have done some reading on the larger fuel lines and think it is a good idea.....that along with the updated fuel kit I am getting ready to install should give me what I want. Although I am getting ready to install a fuel pressure gauge, I am doing this stuff blindly without knowing if I really need it....but again it is not that much money and if anything it will NOT hurt my engine.
Cheezit....any advice I am all ears.
Thanks
Joe
In regards to the regulated return....I did my homework on that too....and along with talking to the people that manufacture performance products, they even deter me from buying their RR since I am not running a NON regulated pump and way RAD injectors or performance mods. The stock system is already regulated and in their opinion the most important thing is adequate fuel pressure, clean fuel and larger volume lines to feed the front of the heads......granted that my fuel delivery maintains the proper pressures. It is a long argued topic. I would love to have a RR kit and was really gungho on getting one, but after all the reading (not to stir the pot)...........It is basically a nice to have....thats it.
I was not really conviced with the crossover kit and probably will invest my money in beer instead
...it just seems redundant IMO. My main goal is longevity for my motor. I like the idea of sending more fuel quantity to the heads. I have done some reading on the larger fuel lines and think it is a good idea.....that along with the updated fuel kit I am getting ready to install should give me what I want. Although I am getting ready to install a fuel pressure gauge, I am doing this stuff blindly without knowing if I really need it....but again it is not that much money and if anything it will NOT hurt my engine.
Cheezit....any advice I am all ears.
Thanks
Joe
Post Fiend
Joined: Oct 2009
Posts: 12,123
Likes: 35
From: N. Fort Worth, tx
man I would install the gauge first and formost. once that is in you will have an idea were you need to head from there. the stock stick are 135cc and flow about 110cc
IMO a bigger line will not do a whole lot on a stock pump that lacks volume anyway. now if I was going to go to an airdogII then I could produce enugh volume to make up for the larger line.
so what Im getting at is simple an incress in hose diamater can cause a reduction in pressures to each head.
so far as the looping the 2 heads together if you have a failer on one back insted of keeping it isolated to one side it can now travle to the opsing bank. lets say you have exhaust gas entering from a failed injector would have the issue spread and would much harder to diag.
this is just al theroy so take it for what its worth.
IMO a bigger line will not do a whole lot on a stock pump that lacks volume anyway. now if I was going to go to an airdogII then I could produce enugh volume to make up for the larger line.
so what Im getting at is simple an incress in hose diamater can cause a reduction in pressures to each head.
so far as the looping the 2 heads together if you have a failer on one back insted of keeping it isolated to one side it can now travle to the opsing bank. lets say you have exhaust gas entering from a failed injector would have the issue spread and would much harder to diag.
this is just al theroy so take it for what its worth.
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Logistics Pro
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Totally understand.......and the gauge is the first thing that is going in. Now in theory, the guys over at trustedperformance.com explained that with a proper running fuel delivery, the large lines would deliver a larger volume of fuel to the head to aid in the insufficient fuel scenario that occurs in these engines when a tuner is added.....which I run. It makes perfect sense to me....proper running fuel delivery+larger feed lines(stock are tiny orificed)=less likely chance of running #7 & #8 injector dry........
The main premise behind going to the larger lines and the fuel pressure gauge is in the future I plan an AirdogII and towing injectors. I understand that the stock HFCM can handle quite a bit above stock injector which I eventually plan.
I for one totally appreciate the insight you bring to this board!
Thanks
joe
The main premise behind going to the larger lines and the fuel pressure gauge is in the future I plan an AirdogII and towing injectors. I understand that the stock HFCM can handle quite a bit above stock injector which I eventually plan.
I for one totally appreciate the insight you bring to this board!
Thanks
joe
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Post Fiend
Joined: Oct 2009
Posts: 12,123
Likes: 35
From: N. Fort Worth, tx
ok so with the addition of the adII or the like then it would be justified. now if im not mistaken the adII has a regulator built in. you need to look in to that.
I will say that it is no more common to replace either injector #7 or #8 then any other injector. so I will call bs on that.
keep in mind you have to have pressure as well as volume. I dont know if there will be a big differance.
I have been running tuned sence a week after I got my truck with 33k on it that was now 20k ago. still no issues yet. Ive lost one injector from bad fuel thats it. O that was #2 that dumped.
I sure someone else will chime in on this as well.
I will say that it is no more common to replace either injector #7 or #8 then any other injector. so I will call bs on that.
keep in mind you have to have pressure as well as volume. I dont know if there will be a big differance.
I have been running tuned sence a week after I got my truck with 33k on it that was now 20k ago. still no issues yet. Ive lost one injector from bad fuel thats it. O that was #2 that dumped.
I sure someone else will chime in on this as well.
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Logistics Pro
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So with a proper pumping stock HFCM, you don't think the larger feed lines are worth any consideration?
I looked into the ADII....it is a regulated pump that replaces the HFCM altogether. The HFCM remains intact, but flow is removed to it and the ADII replaces it and acts as the filtration/water seperator as well as fuel preperator.
I looked into the ADII....it is a regulated pump that replaces the HFCM altogether. The HFCM remains intact, but flow is removed to it and the ADII replaces it and acts as the filtration/water seperator as well as fuel preperator.
Post Fiend
Joined: Oct 2009
Posts: 12,123
Likes: 35
From: N. Fort Worth, tx
the adII does not eliminate the filter housing, just the regulator.
I would go to a larger supply line when I did the adII. other then that all I can add is mine and everyone else not running this stuff seems to be doing fine.
I would see what Tex and Ncpartsman have to say on the subject. both of them are in the 500+ hp field.
I would go to a larger supply line when I did the adII. other then that all I can add is mine and everyone else not running this stuff seems to be doing fine.
I would see what Tex and Ncpartsman have to say on the subject. both of them are in the 500+ hp field.
Fleet Mechanic
Joined: Jan 2007
Posts: 1,741
Likes: 3
O.k... THIRD TRY..... (firefox is NOT playing nicely tonight)
The theory behind the crossover lines was that they'd eliminate fuel injector failure (primarily the #8) from fuel starvation; the thinking was that #7 would suck down all the fuel, leaving little or none for #8, especially in high power/speed running environments.
Practical experience seems to have shown that this was never a real issue, especially in stock or lightly modified (i.e. only tuned) trucks. There was some anecdotal evidence that showed the crossover lines made the trucks run slightly quieter.
Larger (fatter) lines may or may not be necessary; at issue in this case is not the lines, but the banjo bolts that hold them to the heads. They have a check valve in them that does nothing but restrict the flow; you can pass a pencil lead thru the valve (which makes it obvious that the valve can flow both ways). There are some pics running around here (or maybe over on the ps.org site) that show an exploded view of the valve; it's INSANE how much restriction there is. Replace the banjo bolts with larger ones and you remove the restriction that may (or may not) be a problem.
-blaine
The theory behind the crossover lines was that they'd eliminate fuel injector failure (primarily the #8) from fuel starvation; the thinking was that #7 would suck down all the fuel, leaving little or none for #8, especially in high power/speed running environments.
Practical experience seems to have shown that this was never a real issue, especially in stock or lightly modified (i.e. only tuned) trucks. There was some anecdotal evidence that showed the crossover lines made the trucks run slightly quieter.
Larger (fatter) lines may or may not be necessary; at issue in this case is not the lines, but the banjo bolts that hold them to the heads. They have a check valve in them that does nothing but restrict the flow; you can pass a pencil lead thru the valve (which makes it obvious that the valve can flow both ways). There are some pics running around here (or maybe over on the ps.org site) that show an exploded view of the valve; it's INSANE how much restriction there is. Replace the banjo bolts with larger ones and you remove the restriction that may (or may not) be a problem.
-blaine
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