Thanks for the response.  I too am using Bob's Z-14 diagram....as a
    matter
    of fact it is literally what I am working on now.....today, even,
    if'n I get
    out there, which I hope I do.  Bob is scheduled to come to speak to
    my EAA
    chapter (EAA Houston, Chapter 12) in October.  He expressed his lack of
    desire to come during a Houston summer <g>

    My most pressing question right now has to do with the placement of
    the fuel
    pressure regulator.  I have gotten different perspectives from
    difference
    folks as to whether it should go inline before the injectors or
    after the
    injectors.  The concern and/or confusion comes mostly from the
    "pin-hole" in
    the fuel rail.  One engineer says the pin-hole will be acting as the
    pressure regulator so no other is needs, another says it should go
    before
    and still another says it should go after (like many auto's do).  I
    guess
    this is one of the problems that goes with being at an airport with
    dozens
    of ROCKET SCIENTIST (we are NASA's Johnson Space Center's main field
    (EFD -
    Ellington Field).

    I have most the fuel system complete, except for this one little item.
    Several emails have been sent to Mistral, but we have had no
    response.....guess I am too small a fry with just the intake/fuel rail
    purchase (even though I am thrilled they made it available).  Since
    I am at
    a bit of a hold up with the fuel regulator, I moved onto the
    electrical. I
    have wired most of RWS (Tracy Crooks') ECU and started its install and I
    have the "big wires" installed in my Velocity.  Should be mounting
    the B & C
    contactors, regulator and busses etc later today.....well, in theory.
    THANKS AGAIN.

    All the best,

    Chris

Chris,
 I posted this for a Mistral manifold user on Flyrotary a while back.
The functionality is the same as other systems and allows the "bypass"
function for repriming should you run a tank dry. You still need the
regulator. The small hole doesn't perform the regulation function. You
still need a pressure regulator with a manifold pressure tap (reference)
for things to work correctly. The regulator maintains a constant
pressure delta relative to manifold pressure to work the best.
Bill Jepson


The Rotary Engine NewsLetter. Powered by Linux.
ACRE NL web site. http://www.rotaryeng.net
Copyright 1998-2006 All world wide rights reserved.