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post #1 of 25 (permalink) Old 04-13-2011, 03:27 PM Thread Starter
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stock fuel pump/ fuel system?

At what level is it necessary to go to an aftermarket pump and make fuel system mods?

I'm looking to make ~ 500 rwhp....but want to keep everything as simple as possible making only neccessary mods..





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post #2 of 25 (permalink) Old 04-13-2011, 03:29 PM
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Re: stock fuel pump/ fuel system?

when I did my 155's it was reccomended that I do a bigger fuel pump....

03 F-250 207000 miles, Mad Turbo Werks Stage 1 Turbo, RCD155 injectors 100% Nozzles, 150/180 FASS, FCDP EGR delete, ARP Headstuds, OEM head gaskets, Diesel Site coolant filter kit, SCT Tunes, Hellmans Sump, 4inch Magnaflow Exhaust, 6.4 banjo bolts, AR-9100 Oil Treatment, 58v FICM
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post #3 of 25 (permalink) Old 04-13-2011, 03:31 PM
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Re: stock fuel pump/ fuel system?

Some trucks will drop to 30psi w/ stock injectors, some hold 40+ w/ 190s. Stonepushers is holding 45-50 w/ 225s which ive never seen before. 190s is kind of a crap shoot, most trucks most likely not holding pressure. You definately want to watch the pressure as dropping pressure wears out injectors.

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post #4 of 25 (permalink) Old 04-13-2011, 03:33 PM
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Re: stock fuel pump/ fuel system?

Quote:
Originally Posted by PTSUPERD View Post
At what level is it necessary to go to an aftermarket pump and make fuel system mods?

I'm looking to make ~ 500 rwhp....but want to keep everything as simple as possible making only neccessary mods..
in saying you want to make 500rwhp,i would simply advise that you install a ad2. i like to do some fuel bowl modifications as well,to take the ad half in fuel line right to the bowl. then i also change the fitting and run 3/8 fuel line directly to the heads. i currently just finished one with a set of 200s and it holds 58 psi all the way to redline/full load. to answer your question alittle more direct. its directly nessesary to upgrade your fuel system once you move past stock injectors. hope this helps
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post #5 of 25 (permalink) Old 04-13-2011, 03:37 PM Thread Starter
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Re: stock fuel pump/ fuel system?

Thanks guys. I will NOT purchase another FASS...and I had an AD2 on my 7.3 that would not hold fuel pressure on my 300 CC hybrids. Airdog recommended running a Raptor pump with the AD2...

Now I'm not going anywhere near that big this time (155-170 ccs)...but I'm a bit gunshy still.





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post #6 of 25 (permalink) Old 04-13-2011, 03:42 PM
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Re: stock fuel pump/ fuel system?

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Originally Posted by PTSUPERD View Post
Thanks guys. I will NOT purchase another FASS...and I had an AD2 on my 7.3 that would not hold fuel pressure on my 300 CC hybrids. Airdog recommended running a Raptor pump with the AD2...

Now I'm not going anywhere near that big this time (155-170 ccs)...but I'm a bit gunshy still.
you could always go full custom,like i did pm me if you would like pics of mine. my system holds 75 psi no matter what.
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post #7 of 25 (permalink) Old 04-13-2011, 03:46 PM
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Re: stock fuel pump/ fuel system?

You will probly want to think about a sump as well so you dont have 1/4 tank issues.

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post #8 of 25 (permalink) Old 04-13-2011, 03:56 PM
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Re: stock fuel pump/ fuel system?

I ran an AD-150 feeding my stock pump with 185's and it would drop 3-4psi on hard runs, but never below 53psi. I had the factory regulator removed from the upper fuel bowl, put a regulator in the return line, and got rid of the banjo bolts. Worked really good for me.

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post #9 of 25 (permalink) Old 04-13-2011, 03:59 PM Thread Starter
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Re: stock fuel pump/ fuel system?

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I ran an AD-150 feeding my stock pump with 185's and it would drop 3-4psi on hard runs, but never below 53psi. I had the factory regulator removed from the upper fuel bowl, put a regulator in the return line, and got rid of the banjo bolts. Worked really good for me.
not bad...

I even thought of just running another stocker in tandem....regulated return is a good idea too...





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post #10 of 25 (permalink) Old 04-13-2011, 04:04 PM
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Re: stock fuel pump/ fuel system?

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You will probly want to think about a sump as well so you dont have 1/4 tank issues.
I had the 1/4 tank issue with my stock pickup. When I installed the new draw straw I left some fuel in the tank, supported it where the straps go(plastic tanks sag), drilled holes centered on the straw length cut line(looks like a castle), and never had touble sucking air.

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