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)