Message-ID: <402B907C.9030907@yahoo.com>
Date: Thu, 12 Feb 2004 09:41:00 -0500
From: Scott Stout <squiggles@yahoo.com>
Reply-To: squiggles@yahoo.com
Organization: The Stout's Zenith 801
User-Agent: Mozilla Thunderbird 0.5 (Windows/20040207)
MIME-Version: 1.0
To: flyrotary@lancaironline.net
Subject: EFI Fuel Pressure
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit

In a NA 13b setup, using the stock fuel pressure regulator what is the 
pressure on the fuel rail?  Is this the ideal pressure? 

Driving this question is I have to have to get fuel return fittings 
welded to my tanks, well the highest point on the tank is not in the 
easiest of spots to plumb to, thus I would like to return to a point 
about half way down the tank.  So, not only does the fuel have to be 
pumped up 40" or so it also has to overcome 5gal or so of fuel weight 
above the return fitting.  External to the rotary lists, some of those 
who I have floated the idea with have said the engine will run rich as 
the fuel rail pressure will increase.  However, it doesn't seem to make 
sense to me as the pressure in the fuel rail will probably be higher, 
much higher, than the pressure needed to overcome the push through the 
return fuel line. 

What are your thoughts?

Thank You.

-Scott
http://home.att.net/~the_stouts_zenith_801/