5.9L 12V Performance Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps Related to Performance and Longevity

Homemade fuel system

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Old 02-14-2010, 09:09 PM
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Default Homemade fuel system

Has anyone made their own fuel system? That is similar to a fass or an air dog but doesn't cost near as much.
 
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Old 02-14-2010, 10:01 PM
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Back in the day i used to buy remote filter heads, make a bracket and put them on the frame rails, and use a holey blue for a pump, worked good for me and a couple of customer trucks, they are still running them. Also use the same filter system and run a walboro pump, but they get a little pricy though.
 
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Old 02-14-2010, 11:11 PM
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I did the same thing with the frame mounted filter and ran a dual pump system that I could manually adjust which pump or if both pumps ran at any one time. I also have my own invention fuel pick up system that I've been using for years now.
 
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Old 02-15-2010, 12:20 AM
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ok thanks guys that gives me something to work off of. You guys wouldn't happen to have any pictures of your set ups would you?
 
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Old 02-15-2010, 12:42 AM
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Old 02-15-2010, 11:36 AM
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Uncle Bubba, what pumps are those, and why duals?
 
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Old 02-15-2010, 12:47 PM
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I don't remember at all a brand on those particular pumps. They were from a one guy shop out in California. His pumps were huge in the drag racing world for gassers but this was an experimental try at the diesel world that didn't work out. PE maybe for a brand name.




As to the why well the main reason was that if one failed I wasn't roadside trying to install a spare, I just flipped a switch and kept on truckin. But it also served as a way to control fuel pressure on the fly. I had each pump set to 18psi so that for daily driving either one was fine on it's own but if I was towin heavy or playin on those hot days I could turn on the second pump and never fall below 20 psi no matter what. I didn't want over 18psi all time because it leads to other problems but when the VP needed extra cooling and I needed to feed the fire a little more I wanted the extra flow.
 
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Old 02-15-2010, 01:39 PM
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so you want a pump that will keep the fuel pressure at about 18psi and you just ran dual pumps just in case one crapped out on the road then did you tie the power to the pump into the key switch so it would come on and stay on whenever the keys on?
 
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Old 02-15-2010, 03:54 PM
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For any electric pump always use the same trigger wire as the factory pump uses, This will save you some serious issues as time goes. In my case this trigger wire went from the computer to my switch that in the up position ran one pump, down ran the other and the center turned both on. This way there was no chance for me to be stupid and forget to turn a pump on.

A good psi differs depending on who your talking to, 18psi is good for me. I have always set my pressures so that I never go above 22psi or below 18psi no matter what I do. The Hillborn Bypass I listed in the write up ensured that Anything above 22psi was returned to the tank.

A little correction here: I forgot this was being posted in the 12V section, I can't tell you what your ideal pressures would be. I'm clueless on the P-Pumps.
 
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Old 02-15-2010, 04:32 PM
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im making a system for mine..... it involves a jegs alcohol pump, 1/2 line, a remote filter, and all the fittings..... im going to be running 100psi through mine all you have to do is change pump fittings...... im going to have under 500 in all mine and IMO its better than any fass/airdog
 


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