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RE: fuel pressure regulator

To: "Albaugh, Neil" <albaugh_neil@ti.com>,
Subject: RE: fuel pressure regulator
From: "Dave Dahlgren" <ddahlgren@snet.net>
Date: Wed, 1 Jun 2005 15:22:54 -0400
people do that just not many on this list..
Dave

> -----Original Message-----
> From: owner-land-speed@autox.team.net
> [mailto:owner-land-speed@autox.team.net]On Behalf Of Albaugh, Neil
> Sent: Wednesday, June 01, 2005 2:29 PM
> To: Scott Cowle; land-speed@autox.team.net
> Subject: RE: fuel pressure regulator
> 
> 
> Scott;
> 
> Try taking off the return line temporarily and put on a short, large
> diameter hose that's routed to a 5 gallon gas can. Fire up (bad choice
> of words here) the fuel pump and see if the regulator is able to be
> adjusted to a lower output pressure. This will point to whether your
> problem is the return line restriction or not.
> 
> Dave may be correct about the regulator's not being able to handle the
> full output of the pump. I've always wondered why nobody puts a pressure
> transducer on the carb / FI input line and uses that signal to control
> the speed of the electric fuel pump. It would pump only enough fuel to
> keep the pressure where it should be.
> 
> Regards, Neil    Tucson, AZ
> 
> 
> -----Original Message-----
> From: owner-land-speed@autox.team.net
> [mailto:owner-land-speed@autox.team.net] On Behalf Of Scott Cowle
> Sent: Wednesday, June 01, 2005 5:30 AM
> To: land-speed@autox.team.net
> Subject: fuel pressure regulator
> 
>  I know I ask dumbass questions but I'm working on stuff I've never used
> before now that I've got this supercharger, I need help.I have put an
> aeromotive fuel pressure regulator on my car as part of the new fuel
> system for my supercharger. It is supposed to be adjustable down to
> three pounds but I can't get it to adjust below eight pounds, so fuel is
> coming out the venturis in gobs as  the pressure overwhelms the needle
> and seats in the carb.My return line to the tank is 3/8ths diam. until
> it gets to the tank and then is 5/16ths as this is the stock line-I took
> the filter sock off. I am going to change this to 3/8ths too. My
> question is, is this restriction the reason I can't get the regulator to
> adjust below eight pounds? The fuel lines from the tank to the regulator
> is = inch, and I have two lines going to the carb-3/8ths each-one for
> the primaries, one for the secondaries. The pump is a big aeromotive
> pump used for fuel injection or carb applications and is good for up to
> 60lbs of pressure.
> 
> Thanks -Scott






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