So you still need a filter in the hfcm but the AD2 filter will keep it clean enough that you won't really need to change it, am I understanding that correctly? Thanks for the reply! I'm sure if I go this route, I'll have more questions later on.
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'04 F250 KingRanch CC FX4 6.0 swb "BIG D" Tim
GO FLYERS!
Originally Posted by hubler13f When congress refuses to provide soldiers with the equipment to complete the mission. S.T.E.A.L. Sudden Transfer Of Equipment to an Alternate Location
that's kinda the idea i have been getting. i had another thread going about FASS and fuel filters and npccpartsman basically said the FASS filters can last up to 60k miles and they keep the stock filters really clean. the best way to know if your stock filters are getting plugged would be if you had fuel pressure gauge.
The AD2 feed line to the engine bypasses the factory pump. The factory pump only acts as a "return line" back to the tank. The electrical is disconnected also. The AD2 has a water separator and a 3 micron fuel filter on it--side by side filters. No filter required in the HFCM since no fuel will go through it except back to the tank.
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Ford Makes It, International Shakes It, Full Force Fuels It, River City Turbo Spools It, ID Tunes It, and Trucks Unlimited keeps her Rockin the Road with 500+ BADASS Ponies
The AD2 feed line to the engine bypasses the factory pump. The factory pump only acts as a "return line" back to the tank. The electrical is disconnected also. The AD2 has a water separator and a 3 micron fuel filter on it--side by side filters. No filter required in the HFCM since no fuel will go through it except back to the tank.
Thank you for all the info you giving to us on the ADII, it is really helpful. I tried to rep you for it, but I have to spread some love.
Now my other question is about the RR kit - you mentioned that you do not need it after installing the ADII. Was it stated in the instructions somewhere, or is it simply because the Airdog won't let air get to the injectors?
Reason I'm asking is, because that you won't get air in the fuel port in the heads is a fact - because of the ADII, but it still won't cure the "dead end" issue - IMO.
As I see, even though you have no air in the system, you still end up with uneven fuel pressure at each injectors, since the feed is only at the front of the heads, so the injectors on the rear side will suffer some pressure loss.
My theory might be wrong, that's why I asked who stated that "you don't need RR system with the ADII " .
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'03 F250 6.0 Lariat CC LB FX4, 4" Turboback Stainless Exh., ARP Studs, EGR Delete, Banks High Ram Intake/ stock filter, SCT X3 Innovative Custom Xtreme Tunes , CCV reroute, Dieselsite Coolant filter, Fumoto valve, High Idle Mod, Autometer Boost, EGT, Fuel Press. gauges, Zoodad Mod, Suncoast 5R110 , 4" Pro Comp lift kit
Kong MKII Train horn w. 5 gal. air system
'57 Jeep CJ5 Wyllis "Original" / no mods
I agree that a RR kit is a good idea with the ADII, I have one.
But I have heard it is not needed.
I like the idea of the flow through and the larger fuel lines and fittings.
The ADII will take all the entrapped air out of the fuel.
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Andy 2007, F350,6.0 PSD,4X4, Lariat, CC, DRW, 9' Knapheide body, stainless steel ladder rack, SCT with custom tunes, Banks turbo back(no kitty), ARP's, EGR delete, ITP RR, Airdog II 130/75, head coolant lines, Firestone air bags, Autometer gauges( pyro, fuel pres, water temp, boost, trans temp, volt meter), CCV mod.
The flow may "dead end" but as long as the pressure AND the fuel supply flow rate are both high enough to meet the demand of the injectors, it does not matter that it "dead ends".
__________________ Mark
06 F250 CC SB ESOF FX4 Lariat 3.73LS 275/65R20; DieselSite Coolant Filter; High Idle Mod; HFCM Plug; Zoodad/Air Fury grill; Accufab Elbow; RACCCV6000 filter; JimmiJammers; Ravelco; SynchroMax in Transfer Case; Fumoto Valve; Harpooned fuel tank; Line-X; CPOhighway Products tool box; tracrac; Fox Weatherboots; Wet Okole Seat Covers; Stanadyne Performance & B2 for lubricity; PIE adapter (thanks Sarge); PIAA 24" wiper blades; updated EGR valve; BriteBox; Re-flashed; Fuel Pressure gauge; DashDaq on deck
FASS and Pureflow will both tell you that a RR system isn't needed with their pump. It's designed to NOT run that way, BUT a factory system is STILL a RR system if you think about it. The ITP simply routs fuel all the way through the heads before returning it back to the tank whereas the factory system returns from the secondary fuel filter housing.
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All right guys, you convinced me.
So it seems like that I'm going to get the AD2, but not the RR kit.
I just ordered the AutoEnginuity scanner today, and I'm going to jump on the AD2 at the beginning of the next week.
Thank you for all your help!
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'03 F250 6.0 Lariat CC LB FX4, 4" Turboback Stainless Exh., ARP Studs, EGR Delete, Banks High Ram Intake/ stock filter, SCT X3 Innovative Custom Xtreme Tunes , CCV reroute, Dieselsite Coolant filter, Fumoto valve, High Idle Mod, Autometer Boost, EGT, Fuel Press. gauges, Zoodad Mod, Suncoast 5R110 , 4" Pro Comp lift kit
Kong MKII Train horn w. 5 gal. air system
'57 Jeep CJ5 Wyllis "Original" / no mods
Just an additional bit of information. When I talked to Toby at PureFlow I told him that I wanted the factory HFCM out and gone. I never want to change a filter or reach into that space again. It is one dumb location to R&R a filter. Anyway I removed the HFCM and put a short piece of hose in its place. Toby said that it would work. Sorry about the rant. I will lose no more skin and blood there.
I agree that a RR kit is a good idea with the ADII, I have one.
But I have heard it is not needed.
I like the idea of the flow through and the larger fuel lines and fittings.
The ADII will take all the entrapped air out of the fuel.
Quote:
Originally Posted by npccpartsman
FASS and Pureflow will both tell you that a RR system isn't needed with their pump. It's designed to NOT run that way, BUT a factory system is STILL a RR system if you think about it. The ITP simply routs fuel all the way through the heads before returning it back to the tank whereas the factory system returns from the secondary fuel filter housing.
Just to clarify, I suspect that FASS and Pureflow say that a regulated return is not needed because they think that the RR is ONLY for regulating fuel pressure. Since the ADII has a regulator, another regulator in the system for the sole purpose of just managing fuel pressure would not be needed...BUT...there is more to a regulated return than just the "regulated" part. When you do a "real" regulated return system (I've seen some things that were called a RR but were nothing but an adjustable regulator), you are getting larger fuel lines (flow improvement TO the fuel rails), new cylinder head fittings (eliminating the stock banjos with the check valves in them) and you are eliminating the "dead head".
While FASS and Pureflow may not think that the deadhead is a big deal, if you consider that there is pressure drop across the entire system you will realize that setting your fuel pressure "before" (8-10' before in the case of a pump mounted regulator located back by the tank) all of that drop (without knowing exactly what that drop is) is nothing more than a W.A.G. Do you add 5psi to account for the drop, 10psi? If you run a regulated return with the regulator located AFTER the fuel rails (and after ALL of the system pressure drop points), you are guaranteed that the regulator is seeing and reacting to actual fuel rail pressure in addition to getting the flow benefits.
Should you run a pump system with it's own regulator (like an AirDog II) and then decide to run a regulated return with it, be aware that you will need to run the ADII at a higher pressure so that the engine mounted regulator can be the "master" of the system pressure. You might have to run the ADII at 75-80psi in order to account for the system pressure drop and fuel usage by the injectors and still maintain 65psi of pressure at the post-fuelrail regulator. This is just one of the reasons that I prefer the High Volume/Low Pressure standard AirDog feeding either a stock or aftermarket pump (depending on flow needs). The standard AirDog is "dumb", it just runs at FULL VOLUME doing it's job of filtering and removing air and passing as much fuel as it can move to the main system pump. The main system pump is "dumb", it just takes the inlet fuel and jacks the pressure up and sends it to the engine. The engine mounted regulator becomes the "brains" of the operation, and with both pumps just moving all the fuel they can there is little room for issues and no chance of having 2 regulators in the system that are competing with each other.
Don't get me wrong, I am not slamming the ADII. I have not tested one yet but I will be testing the ADII on both a 7.3L and a 6.0L in the near future. I've been selling the ADs since Charlie released them years ago and they are a FANTASTIC product! My biggest concern is that Charlie and I spent a TON of time discussing how the AD removes air, and the increased output pressure of the ADII coupled with the air removal knowledge that Charlie imparted on me has me questioning how efficient the ADII is. Charlie tells me not to worry, it works as good as the original AD, depsite the increase in output pressure. I will reserve judgement until after I've tested an ADII (both with and without a RR fuel system) myself.
Dennis as always you have great info for all of us.
I have your RR and it is a great kit. I also have the Airdog II and like it a lot.
My Airdog II is set at about 70 psi and I have the RR kit set at 63-64 psi and it is running great.
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Andy 2007, F350,6.0 PSD,4X4, Lariat, CC, DRW, 9' Knapheide body, stainless steel ladder rack, SCT with custom tunes, Banks turbo back(no kitty), ARP's, EGR delete, ITP RR, Airdog II 130/75, head coolant lines, Firestone air bags, Autometer gauges( pyro, fuel pres, water temp, boost, trans temp, volt meter), CCV mod.
Dennis as always you have great info for all of us.
I have your RR and it is a great kit. I also have the Airdog II and like it a lot.
My Airdog II is set at about 70 psi and I have the RR kit set at 63-64 psi and it is running great.
And i have it the oppisite of that. I set my ITP reg to 70+ so that it was not regulating. Then set my ADII to 68 psi so that it is the master reg and the ITP is just there for looks and a port to read from. I am running a in cab Auto meter with tapped into the ITP port.
Dennis- if you have the time or maybe i could PM you.
wondering what you think about a truck with slightly larger injectors or stock with tuning/heavy towing. if someone asked me what should they do FASS/Air Dog or ITP RR? i've read what you posted and have learned a lot, it's ok if you say both.
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