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Thank you very much for that information,
Alex.....just what I was looking for, and I didn't even know that I was looking
for it. There is such a wealth of information on this site!!! Paul
Conner
----- Original Message -----
Sent: Tuesday, May 11, 2004 7:23 PM
Subject: [FlyRotary] Re: Fw: [FlyRotary]
Re: injector relocation predictions?
Check out the EFI
stuff http://www.electromotive-inc.com/efi_parts.html
They sell fuel rail stock and
bosses.
At the bottom of the
page they sell threaded bosses. If you don’t like you boss position just
unscrew it and fill the hole with a bolt.
They also have an
Injector Boss and
Cap Assembly with AN-03 fitting on the top. This eliminates the need for a
fuel rail and makes placing fuel injectors in different places along the
manifold easy. I am looking at using these for my carbon fiber intake manifold
design.
Alex
Madsen
-----Original
Message-----
From: Rotary
motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of
sqpilot@earthlink
Sent: Tuesday, May 11,
2004 5:04
PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Fw: [FlyRotary] Re:
injector relocation predictions?
----- Original Message -----
Sent: Tuesday,
May 11, 2004 5:01 PM
Subject: Re:
[FlyRotary] Re: injector relocation
predictions?
Rusty.....my intake runners are
also 30 inches, just like the Powersport engine and the Mistral rotary
engine. I am considering relocating the injectors to the first bend of
the intake tubing, closer to the engine, primarily to stop the few drops of
fuel that drip out of the throttlebody just after engine shutdown. (The
throttlebody runss downhill for cowling clearance). My idle is great. I don't
know about throttle response because I don't have the prop on it yet.
Without the prop, I now have it idling smoothly at 1000 rpm. I'm
thinking that a prop will act as a flywheel and possibly give me an even lower
idle?
Here is a link
that sells weld-on injector bosses and fuel rails. www.ptrsds.com/manifolds%20.htm
They will also take your manifold and add the injector bosses and fabricate a
custom fuel rail if you want to spend money. Take care. Paul
Conner, thinking about spending money.
----- Original Message -----
Sent:
Tuesday, May 11, 2004 12:46 AM
Subject:
[FlyRotary] Re: injector relocation
predictions?
Really? 30 inch
runners? I knew they were long but that's just way too long. I
don't think injector relocation will fix power but it should do wonders for
idle, low throttle tuning & throttle
response.
----- Original
Message -----
Sent:
Monday, May 10, 2004 9:33 PM
To:
Rotary motors in aircraft
Subject:
[FlyRotary] injector relocation
predictions?
As I mentioned
before, one of the relatively easy options for improvement will be to move
the 4 injectors, and keep the current intake. As they are now, all 4
injectors are in the TB, which is 30 inches away on the cold side of
the engine. I believe I can mount the two stock primaries back in
the block, and can probably mount the two secondaries in the intake, maybe
2 inches from the engine.
Here's the
question, do you think this will increase power? In other words, am
I losing power by having the injectors coating the inside of the long
tubing, rather than efficiently delivering the fuel to the
engine?
Rusty (thinking
of draining one fuel tank, and filling it with helium to improve
climb)
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