DDRP pressure/flow question - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 9 (permalink) Old 02-20-2010, 03:03 PM Thread Starter
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DDRP pressure/flow question

My third lift pump on my 99 3500 is going out. Thinking of using the FASS DDRP pump. My engine is stock except for the Edge with Attitude, my injection pump is only 2 years old.

Question is; I can't seem to find anywhere that says what the pressure numbers are for the DDRP, only that it has 33% more "flow" than a stock pump. Does more flow equate to more pressure as well? If so, does anyone know what that pressure number is?

Thank you for you assistance.

.
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1999 Dodge 3500 Dually, Cummins, Edge Juice with Attitude, BHAF, open exhaust, Auto tranny, 21 MPG and it pulls a giant camper pretty well at 11 MPG. Just added the Raptor 150 Pump and big line kit.
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post #2 of 9 (permalink) Old 02-20-2010, 03:13 PM
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DDRP is 40 GPH, 16 PSI.

The PureFlow Raptor seems to be a bit more popular. There are 100 GPH and 150 GPH models and both have adjustable regulators. The Raptor is about 110-120 bucks more.

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post #3 of 9 (permalink) Old 02-20-2010, 05:46 PM
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I would not waste my time with the DDRP, its something D Direct Replacement Pump, and it mounts the same place as the stocker, on the motor, these trucks really need a pump on the rail...stock i could idle at 16psi, and I dont see the DDRP being that much completly better for the money...just buy a raptor, or if you dont have the money dip into a Holley Pump, but something on the rail...

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post #4 of 9 (permalink) Old 02-21-2010, 06:06 AM
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hear of way to many people that get ddrp to get something else because it can't do the job. one major issue with the pumps like the stock and the ddrp is the fuel is filtered after it flows through the pump and they don't like that.

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 #5 of 9 (permalink) Old 02-24-2010, 06:36 PM Thread Starter
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Ok, after I buy the Raptor, then what else do I need to buy to make it work on my truck then? I guess I have to buy fuel lines and the whole shabang.

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1999 Dodge 3500 Dually, Cummins, Edge Juice with Attitude, BHAF, open exhaust, Auto tranny, 21 MPG and it pulls a giant camper pretty well at 11 MPG. Just added the Raptor 150 Pump and big line kit.
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post #6 of 9 (permalink) Old 02-24-2010, 06:59 PM
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Originally Posted by chevy View Post
Ok, after I buy the Raptor, then what else do I need to buy to make it work on my truck then? I guess I have to buy fuel lines and the whole shabang.
not unless you want to Raptor comes ready to go and with the fuel regulator on the side to adjust FP to what you want...

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post #7 of 9 (permalink) Old 02-25-2010, 10:11 PM
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DDRP pumps don't address the tiny plumbing and don't have much of a warranty supplied from FASS... By the time you add BigLine Kit and a pre-filter you could have a AirDog 100/150 with lifetime warranty...

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post #8 of 9 (permalink) Old 02-27-2010, 05:15 PM Thread Starter
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10-4, ordering the Raptor today.

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1999 Dodge 3500 Dually, Cummins, Edge Juice with Attitude, BHAF, open exhaust, Auto tranny, 21 MPG and it pulls a giant camper pretty well at 11 MPG. Just added the Raptor 150 Pump and big line kit.
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post #9 of 9 (permalink) Old 02-27-2010, 05:27 PM Thread Starter
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Well, it is officially ordered from Pure Diesel Power, wish I had a coupon.

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1999 Dodge 3500 Dually, Cummins, Edge Juice with Attitude, BHAF, open exhaust, Auto tranny, 21 MPG and it pulls a giant camper pretty well at 11 MPG. Just added the Raptor 150 Pump and big line kit.
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