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Thanks, Joe
Yes, I recall meeting you down at Lancaster. So long
as you know I am only experienced with 13Bs {:>), but do have a bit of
experience on the 13B. I'll check on Ebay for a new fuel pressure
regulator.
Perhaps when I get back in the air, I could fly down to
Lancaster and you could pick me up at the airport.
Ed
----- Original Message -----
Sent: Wednesday, September 27, 2006 8:19
AM
Subject: [FlyRotary] Re: Fw: Constant
Pressure Differential??
Ed,
Thanks, this is useful info. If you decide
to change your fuel regulator, you will have to retune your EC2 (assuming you
are using a EC2.) I have written a program (would still consider it
Alpha) that you can see the fuel map tables and write digital values to each
of the array elements with a PC. I would be happy to trade use of the
program for your looking over my 20B installation so far. In case you
don't recall, I am located near KLKR. Also if you go with an Aeromotive
regulator, it does not come with the AN fittings, they are the o-ring
type. I am using Aeromotive #13109, best price was on
Ebay. Best pricing I found for the fittings was from
AmStreetRod.com.
Hope this helps,
Joe
----- Original Message -----
Sent: Tuesday, September 26, 2006 7:55
PM
Subject: [FlyRotary] Fw: Constant
Pressure Differential??
I thought some of you might be interested in
Aeromotive's response to my question about their fuel pressure regulators -
some of which reference "Vacuum/Boost" and some descriptions only refer to
"Boost".
Ed
----- Original Message -----
Sent: Tuesday, September 26, 2006 5:59 PM
Subject: RE: Constant Pressure Differential??
Ed,
In all cases where
an Aeromotive regulator is able to be referenced to intake manifold
pressure, it will affect fuel pressure on a 1:1 ratio with PSI, in both
positive and negative pressure situations,
equally.
Vacuum is normally
measured in “HG (inches mercury) and you would have to convert to PSI by
dividing the “HG by 2.
This will ensure
that the delta across the injector of flow orifice will always be
maintained.
Hope this answers
your questions, good luck and thanks for choosing
Aeromotive!
Brett
Clow
Technical
Support
Aeromotive,
Inc.
7805 Barton
St.
Lenexa, KS 66214
913-647-7300
Ext. 109
From: Ed
Anderson [mailto:eanderson@carolina.rr.com]
Sent: Friday, September 22, 2006 1:55
PM
To:
tech@aeromotiveinc.com
Subject: Constant Pressure
Differential??
I notice that some of the
descriptions for your fuel pressure regulators that are manifold
referenced refers to "Vacuum/Boost" and others refer only to
"Boost".
Does this indicated that
those which described as "vacuum/boost" will cause the fuel pressure
to vary in order to maintain a constant pressure differential between
the fuel and the manifold pressure whether below 30 inch Hg or above 30"
Hg? Does the ones which are reference to only "Boost"
indicate that the regulator holds the line fuel pressure constant until the
manifold pressure goes above 30" Hg and then increases it to compensate for
more fuel needed in boost?
I am using an EFI that requires
a constant pressure differential between
the line fuel pressure and the manifold pressure for optimum
performance. The engine produces approx 200HP. Therefore, I need
a fuel pressure regulator which DOES vary line fuel pressure in order to
maintain a constant pressure differential across
the injector at manifold pressures below 30" Hg. So do all your
manifold referenced fuel pressure regulators do this OR only those which are
referenced to "vacuum" or "vacuum/Boost"?
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