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Old 12-15-2012, 06:32 PM
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diy regulated return

Hey guys i have a 2002 F-350 pretty much stock but i really want to start playing with it. I amwondering if anyone has a writeup on a diy regulated return? I am pretty much a newbie so an idiots guide with pop up pictures would be much appreciated! Thank you for an tips!
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Old 12-15-2012, 06:46 PM
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If your talking about a blue spring upgrade, take a look in you-tube. Great video in their. As close to pop up's as your gonna get!
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Old 12-15-2012, 06:58 PM
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A blue spring mod is 6.0 stuff.
There are a few good write ups on different sites.

I made my Samsung SGH-I997 send this.
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Old 12-19-2012, 01:38 AM
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i found with a good air separater,bigger pressure pumps. Di makes a kit to gut the return regarding. can also be run without a return. i sold my rr kit becauseclean fuel doesn't need be returned, just burned. run the fuel pressure up to 105 psi. it Will sound like a different engine.
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Old 12-19-2012, 09:09 PM
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Driven Diesel Standard Regulated Return Fuel System Kit

Here is a decent kit with some good info on it. I suggest using google and searching for "7.3 regulated return." Their is a lot of good info out there.
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Old 12-19-2012, 11:22 PM
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what is known as regplated is designed to flush air pocket away so all inspectors get equal full. my system removes all airs there's no need to pump back to return.. idont use return line.. why send it to tank when can burn it.
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Old 12-20-2012, 01:12 AM
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So you are saying you can feed your motor as much as you fuel psi as you can and it will burn it all, huh? Wait then why are our injectors measured in a flow rating then? Flowing a ton of fuel psi to the injector for it to burn more sounds familiar, maybe that's because that's what a common rail motor is. This site must be desperate to give you a tech tag.... You still pushing that 438hp on stock injectors? You know the ones that only flow enough fuel for 330hp max. I'll make sure I ask you before about my next truck upgrades...

OP, look at buying a RR unless you have the ability to find all the lines and fittings. I have only seen 1 or 2 write ups about building your own and they left out way to many details to be useful. If you can figure it out, please do a write up. That would be awesome for all the diy guys.
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Old 12-21-2012, 11:03 AM
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What I did is nothing new. My Dad showed me this in the 70's. Flow rate is based at a given pressure. This is just driving the injector to more flow and more importantly, atomization. This is the heart of all todays clean and big power diesels
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Old 12-21-2012, 03:13 PM
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So how exactly does higher psi help atomization, all fuel psi does on our trucks is refill the injector. The injector is responsible for fuel atomization. Yes high fuel pressure out of the injector is what is responsible for todays diesels because they are common rail. 25,000+ psi fuel out coming out of the injector. Heui systems use oil and a 7:1 or 5:1 pressure ratio in the injector itself to create the injection and atomization events. You could run 500 psi to the injector, all it will do is refill the injector and put pressure on seals. Anything over 75psi you are taxing orings in the fuel system. Keep your 70s gas motor knowledge out of the modern diesel world, the rules for a carbureted gas motors don't apply hear.

Fat fingered from my phone
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Old 12-21-2012, 05:11 PM
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The injector is a multiplier. You put 53psi or factory and you get what, 8 to 1 or more, just a figure. Most people raise there fuel to 70psi. Thats just about 20 hp. It just goes up from there. Now get your tunes set to use more HPOP and there you have it. Other than the DPF were stuck with, The nice HP and torque figures we see today are partly due to this process. Clessie Cummins knew this in 1936. He told the media if they saw smoke from his car, there was something wrong with it. Something else to make this work is fuel prep. The cleaner the better.

Last edited by Ramsmoker; 12-21-2012 at 05:13 PM. Reason: spelling
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