fass/airdog on an OBS? - Ford Powerstroke Diesel Forum
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post #1 of 21 Old 10-12-2012, 08:46 AM Thread Starter
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fass/airdog on an OBS?

Is anyone running a fass or airdog system? Is there a write-up anywhere or a complete kit that can be bought?

1996 F250 XL 7.3 PSD ZF5 Red SCLB ...79k miles and show room stock

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post #2 of 21 Old 10-12-2012, 10:47 AM
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I don't know about a complete kit. I honestly wouldn't run either of them. I have close friends who have had both of them and had nothing but problems. Also, airdogs costomer service sucks. I am going to go with dual stock superduty pumps. Or maybe a couple walbros...

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post #3 of 21 Old 10-14-2012, 06:30 PM
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If your wanting e fuel, its really not bad to piece it together yourself. The peace of mind itself was worth it for me. Also with those kits the pumps aren't available at a parts store so if it goes bad, you have to wait on one in the mail.


wade
97 F350 CCLB srw 4x4
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post #4 of 21 Old 10-15-2012, 04:44 AM Thread Starter
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I have to make 65 PSI @ ? GPH? Right? If I do it I dont want one hose clamp in the whole system. I have had really ****ty experiences with hose clamps and fuel under pressure...

1996 F250 XL 7.3 PSD ZF5 Red SCLB ...79k miles and show room stock

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post #5 of 21 Old 10-15-2012, 08:22 AM
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fass and airdogs cant be used with 7.3's... they dont supply enough fuel pressure. Why the need for the fuel upgrade, btw?
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post #6 of 21 Old 10-15-2012, 01:04 PM Thread Starter
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Just bouncing some ideas around in my head. Thinking some stage II hybrids down the road and I'm gonna need more than the mechanical pump can handle correct?

1996 F250 XL 7.3 PSD ZF5 Red SCLB ...79k miles and show room stock

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post #7 of 21 Old 10-15-2012, 01:13 PM
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Define "stage II hybrid"..... because stage II's are typically fine w/ stock fuel and a shim.
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post #8 of 21 Old 10-15-2012, 01:24 PM Thread Starter
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I am thinking anywhere between a budget stage II and a 2.5. My goal is 800+ ftlbs, not very concerned with HP (although it will obvioulsy follow torque probably somewhere in the 350-380 range).

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What's this shim all about? I have heard it mentioned several other times and never followed up with it.

1996 F250 XL 7.3 PSD ZF5 Red SCLB ...79k miles and show room stock

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post #9 of 21 Old 10-15-2012, 01:44 PM
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Quote:
Originally Posted by 85_305 View Post
fass and airdogs cant be used with 7.3's... they dont supply enough fuel pressure. Why the need for the fuel upgrade, btw?
yes they can.. they make a kit for SD trucks that can be used on an OBS
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Define "stage II hybrid"..... because stage II's are typically fine w/ stock fuel and a shim.
Bull s h i t.... will they "work" yes... are you damaging your injectors every time you step on the skinny peddle, YES, fuel pressure can NEVER drop below 50 psi to keep optimum injector life. filtered properly of course.... even if you shim the spring, if you dont have volume, whats the point???
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Is anyone running a fass or airdog system? Is there a write-up anywhere or a complete kit that can be bought?
here is a link to a few guys install of e-fuel with material lists. price is usually between 500 to 700 depending on how deep you go. once you decide what way we can link you to a good write up install if just one set up. but u need to decide how much you wana spend and what you wat to replace while doing it. and what kind of pump u wana run, stock SD (single or dual), walbro (not rated for diesel but lots of guys run them and only $100), bosch (needs 1/2 suction lines), aeromotive, or fuel lab.... all $$$ pending.
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post #10 of 21 Old 10-15-2012, 02:54 PM
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^ exactly. Injectors are too expensive to save a few hundred by running stock pump and filtration. Both leave a lot to be desired. Do you have a part number for the walbro? As long as you use hose rated for diesel AND fuel injection, and use fuel injection style clamps, you won't have a problem. If you still don't feel comfortable with that, you can run push-loc style hose or AN style hose, just make sure its rated for diesel, or it will not last. I used trident marine fuel injection hose.


wade
97 F350 CCLB srw 4x4
3" downpipe , gutted EBPV,5" stack
6637
autometer sport-comp trans, pyro, boost, oil psi, volts
billet TC, aux trans filter, transgo tugger
pro-comp 16x10 series 98's,Hankook 285 AT's
Rosewood premium 1.5's
E-fuel
SD intercooler
Tony Wildmans tunes

When I find the time: home built front bumper, 7" CAT stack
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