Aeromotive fuel pressure regulator - Diesel Forum - TheDieselStop.com
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Upgrades and Aftermarket - 99 & up 7.3L Engine Upgrading or adding OEM or aftermarket equipment to your 1999-Up Super Duty or Excursion with 7.3L Power Stroke diesel engine. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

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Old 06-04-2006, 01:01 AM   #1 (permalink)
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Aeromotive fuel pressure regulator

Anybody using this one: http://cgi.ebay.com/ebaymotors/ws/eB...wItem&rd=1,1&item=8064713537&sspagename=STRK%3AMEWA% 3AIT

Thanks-
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Old 06-04-2006, 01:16 AM   #2 (permalink)
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Re: Aeromotive fuel pressure regulator

Didn't work for me. [img]/ubbthreads/images/graemlins/shrug.gif[/img]
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Old 06-04-2006, 02:07 AM   #3 (permalink)
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Re: Aeromotive fuel pressure regulator

Why not?
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Old 06-04-2006, 02:08 AM   #4 (permalink)
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Re: Aeromotive fuel pressure regulator

Oh, sorry. I meant the link didn't work for me. [img]/ubbthreads/images/graemlins/frown.gif[/img]
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Old 06-04-2006, 02:13 AM   #5 (permalink)
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Re: Aeromotive fuel pressure regulator

Auction gone. Someone use the Buy it Now?

I have been using an Aeromotive regulator for 4 years now. Forget the model number. Supposed to be good for 100psi.
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Old 06-04-2006, 12:15 PM   #6 (permalink)
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Re: Aeromotive fuel pressure regulator

Sorry, that link isn't working. Try this new link which seems to be ok. If it doesn't work, search "Aeromotive billet adjustable EFI Bypass Regulator"
http://cgi.ebay.com/ebaymotors/AEROMOTIV...1QQcmdZViewItem
The thing that impresses me is the number and size of the ports, which means being able to feed both heads equal volume and pressure without buying a splitter, which creates more entrained air problems, and I also like the fact that it is designed for a pressure range of 40 to 100 psi. I contacted the seller but he didn't have a clue about diesels.

I'm aware that there are cheaper Aeromotive units available, but cheap isn't always best.

Please let me know what you think-

Thanks-
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Old 06-04-2006, 12:20 PM   #7 (permalink)
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Re: Aeromotive fuel pressure regulator

Yup, that link works. Looks like a nice regulator. Should be fine. [img]/ubbthreads/images/graemlins/smokin.gif[/img]
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Old 06-04-2006, 03:26 PM   #8 (permalink)
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Re: Aeromotive fuel pressure regulator

[ QUOTE ]
The thing that impresses me is the number and size of the ports, which means being able to feed both heads equal volume and pressure without buying a splitter

[/ QUOTE ]
the regulator is after the head but before the return to the tank. Would not make a difference if it has 1 or 10 holes. It is after the fact. [img]/ubbthreads/images/graemlins/confused.gif[/img]
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Old 06-04-2006, 03:37 PM   #9 (permalink)
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Re: Aeromotive fuel pressure regulator

The regulator can go before the heads, the factory regulator is before the heads. He can put it anywhere he wants. Looks like a good regulator Clam.

As far as getting any air out, just put some small bleed lines off the other end of the heads with .015 restrictors. Like mine.
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Old 06-04-2006, 03:53 PM   #10 (permalink)
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Re: Aeromotive fuel pressure regulator

Why would you want to regulate the pressure BEFORE the heads ?
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Old 06-04-2006, 10:56 PM   #11 (permalink)
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Re: Aeromotive fuel pressure regulator

The factory system is regulated before the heads but the fuel also is dead headed there. When you change over to a circulating system you will need to put the regulator after the heads. As for the areomotive regulator and there pumps for that matter, the pressure rating is to low for my likeing. Mallory is marketing a regulator that is rated to adjust up to 100psi.
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Old 06-04-2006, 11:06 PM   #12 (permalink)
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Re: Aeromotive fuel pressure regulator

[ QUOTE ]
Why would you want to regulate the pressure BEFORE the heads ?

[/ QUOTE ]

I've talked to Aeromotive, and this is how the reccomend doing it, although I don't agree. They claim that with the small inlet for fuel in the heads, it creates a restriction and the fuel pump will work much harder. The claim that the fuel pressure difference in the lines before the heads and at the regulator (if after the heads) is quite large. I was told by them that if you set the regulator at 65-70 psi, the pressure before the heads is up around 90 psi.

My observations have been no where near that. I have a fuel pressure gauge on the regulator, and another one in the splitter before the heads. There is a difference of about 2 psi, when I'm running 65 psi set on my regulator. This is with the stock fuel bowl gone, using a Y-block to split the fuel to each head. When I had the stock fuel bowl, the pressure in the fuel bowl was about 4-5psi higher than what was at the regulator, running 65 psi at the heads. The fuel bowl was a bit of a restriction there. But, no where near the psi difference that Aeromotive is leading you to believe.
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