Fuel pressure! - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 11 (permalink) Old 02-19-2009, 06:30 AM Thread Starter
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Fuel pressure!

So if you read my other thread my factory lift pump was on the out! 9-11 psi while idle, and under 9 if any load more than quarter throttle!

Changed the fuel filter and nothing.

So called Dan over at FASS because he helped me out on all my ford FASS issues and he was able to cut me a great deal on the DDRP.


Install it today and every thing goes well, fuel pressure now at idle is 15 to 17 on the edge juice and under heavy throttle goes down to 10-11.

Is there any other way to keep the pressure up during acceleration other than a bigger FASS? Is there another fuel filter other than that one right there by the motor?

Does any one make a high flow fuel filter for these trucks?

Or any other ideas?

Thank you

-Steve-
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post #2 of 11 (permalink) Old 02-19-2009, 12:28 PM
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relocate the pump with a vulcan big line kit so it doesn't have to suck the fuel so much just supply it. other than that a fass without filters

01 quad cab 4x4, edge drag comp, 4" exhaust, fass 150, 250 ddps, Jefferson State compounds 683hp so vp 11.91. AMSOIL front to rear. now back to stock 95 fummins in the works
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post #3 of 11 (permalink) Old 02-19-2009, 02:39 PM
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FASS DDRP has all the orignal lift pump problems...

* Too far from the tank.
* Uses too small of plumbing and banjo bolts.

I'm not sure but I heard they only put out like ~60 GPH...

Compared to a AirDog Raptor at 100 GPH which comes with all plumbing fitting etc...

Michael Nelson - 2002 Dodge Cummins & 1996 Dodge Ram 5.9L Gasser
116K Miles On My VP44 - 4 Years of 2 Cycle Oil Diet! - Mixed at 128:1 Ratio - 25.3 MPG maxed out!
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post #4 of 11 (permalink) Old 02-19-2009, 06:52 PM Thread Starter
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Well what about this vulcan big line kit?

-Steve-
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post #5 of 11 (permalink) Old 02-19-2009, 07:07 PM Thread Starter
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So i looked and this is what I need!

This kit, 1/2 inch or 3/8 fitting though moparman?

http://www.vulcanperformance.com/Dra...p/vpps9804.htm

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post #6 of 11 (permalink) Old 02-19-2009, 07:17 PM
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There is no reason to buy that Vulcan Kit and the FASS DDRP....just buy a FASS 95 w/ or w/o filters, FASS 150 w/ or w/o filters, or a PureFlow Raptor, or an Air Dog 100, or 150 w/ filters...it'll be cheaper in the long run...the Air Dogs are on sale for 499 right now and the Raptor is only 399 w/ everything you need...Im getting my Raptor in tomorrow, I havnt had any experience w/ Pure Flow Tech.

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post #7 of 11 (permalink) Old 02-19-2009, 07:20 PM Thread Starter
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I already got the FASS DDRP straight from Dan at FASS so it was to good of a deal to pass up?

Why even buy at 95 series FASS? might as well go tot he 150! and its like 570 dollars?

So with what I am out on this DDRP and that vulcan line kit would be like 300 dollars?

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post #8 of 11 (permalink) Old 02-19-2009, 07:21 PM Thread Starter
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Plus if a FASS is no perfect they do not work right? I have owned 2 previous fords 6.0 and both had them.

And a buddy of mine has a FASS on his 2003 dodge and it was a pain to get perfect.

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post #9 of 11 (permalink) Old 02-19-2009, 11:25 PM
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Well this is how i see it I *believe* (dont have time to check) that the DDRP is like 30% more flow then stocker...so I would think it would be like putting the Vulcan on the stock pump...if you put any kind of pusher on a stock when the stock dies it doesnt matter whether or not the pusher is working good or not...If thats the case then you would run a good risk of killing the VP...How much HP are you going for? I *think* again no time to look that I have read no more then 350 on these...

Also check this out:

http://www.vulcanperformance.com/product-p/reldd.htm

This relocates the DDRP to the rail which would draw better out of tank...

Nate

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post #10 of 11 (permalink) Old 02-20-2009, 04:20 AM
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the best bet to try and make it work is the big line kit as it will not have to draw the fuel as much and have a better time pushing the fuel. get the 1/2" lines so if later you do go with a 150 you have the fittings all there. I still run my fass through the factory filter for the fuel heater as it gets pretty dang cold here.

01 quad cab 4x4, edge drag comp, 4" exhaust, fass 150, 250 ddps, Jefferson State compounds 683hp so vp 11.91. AMSOIL front to rear. now back to stock 95 fummins in the works
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