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Whereas I do T my fuel lines prior to feeding my two pumps and
their individual filters, I "T" (actually I use a "Y") them back together and
run a single line to the injectors, with primary injectors first, then
secondary injectors and then to my pressure regulator. Since the
pressure regulator is almost always returning fuel (to the tank/header tank)
to maintain pressure (except perhaps at WOT), that assures some fresh fuel
always flowing through the line.
If the pressure regulator is place before the injectors
then there is less fresh fuel flowing through the rails.
Just my $0.20
Ed
Sent: Tuesday, August 30, 2011 9:36 PM
Subject: [FlyRotary] Re: CG Products Intake
Manifold
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Ed Anderson wrote:
Nice clean
design!
However, I am a bit curious about the fuel
connection the two secondary injectors - looks like it would have to be
a "hose" type fuel feed or a custom fuel rail design to accommodate
those angles.
That was my thought,
exactly. But then I noticed the screw holes on each side of the
injectors. Is there an attachment adapter that isn't
shown? |
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Thanks for the kudos Ed =)
Yes the secondary injectors have retainers and floating caps on top into
which Swagelock T's are installed so that hard stainless lines are daisy chained
through. Once I figure out how to attach a picture I will take one and do so.
This portion of the manifold is now complete to the silicone couplers and now
needs joining to the rest of the fuel system via the primary fuel rail block.
This is where we ask a few questions:
1. are pulse dampers still used on the input to the primary fuel
rail?
2. what is the best pressure regulator available?
3. we have seen diagrams where the fuel goes to a T then separately to the
primaries and secondaries then back together at another T to enter the
regulator. We are not leaning this way due to concerns about vapor lock; T'ing
the lines reduces flow through each branch by 50%.
Chrissi & Randi
CG Products
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