Return-Path: Received: from conure.mail.pas.earthlink.net ([207.217.120.54] verified) by logan.com (CommuniGate Pro SMTP 4.2b3) with ESMTP id 3227711 for flyrotary@lancaironline.net; Tue, 11 May 2004 22:09:58 -0400 Received: from user-33qt47m.dialup.mindspring.com ([199.174.144.246] helo=Carol) by conure.mail.pas.earthlink.net with smtp (Exim 3.33 #1) id 1BNjBs-0003GO-00 for flyrotary@lancaironline.net; Tue, 11 May 2004 19:09:50 -0700 Message-ID: <004601c437c6$29782b10$0000a398@Carol> From: "sqpilot@earthlink" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Fw: [FlyRotary] Re: injector relocation predictions? Date: Tue, 11 May 2004 21:09:17 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0043_01C4379C.3836D540" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2720.3000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2739.300 This is a multi-part message in MIME format. ------=_NextPart_000_0043_01C4379C.3836D540 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable 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 -----=20 From: Alex Madsen=20 To: Rotary motors in aircraft=20 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. =20 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.=20 =20 Alex Madsen =20 =20 =20 =20 =20 -----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? =20 =20 ----- Original Message -----=20 From: sqpilot@earthlink=20 To: Rotary motors in aircraft=20 Sent: Tuesday, May 11, 2004 5:01 PM Subject: Re: [FlyRotary] Re: injector relocation predictions? =20 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?=20 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. =20 ----- Original Message -----=20 From: Tracy Crook=20 To: Rotary motors in aircraft=20 Sent: Tuesday, May 11, 2004 12:46 AM Subject: [FlyRotary] Re: injector relocation predictions? =20 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. =20 Tracy =20 ----- Original Message ----- From: Russell Duffy Sent: Monday, May 10, 2004 9:33 PM To: Rotary motors in aircraft Subject: [FlyRotary] injector relocation predictions? =20 Greetings, =20 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. =20 =20 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? =20 =20 Thanks, Rusty (thinking of draining one fuel tank, and filling it with = helium to improve climb) =20 ------=_NextPart_000_0043_01C4379C.3836D540 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Thank you very much for that = information,=20 Alex.....just what I was looking for, and I didn't even know that I was = looking=20 for it.  There is such a wealth of information on this = site!!!  Paul=20 Conner
----- Original Message -----
From:=20 Alex=20 Madsen
Sent: Tuesday, May 11, 2004 = 7:23 PM
Subject: [FlyRotary] Re: Fw: = [FlyRotary]=20 Re: injector relocation predictions?

Check out = the EFI=20 stuff http://www.elect= romotive-inc.com/efi_parts.html=20 They sell fuel rail stock and=20 bosses.

At the = bottom of the=20 page they sell threaded bosses. If you don=92t like you boss position = just=20 unscrew it and fill the hole with a bolt.  

They also = have an=20 Injector = Boss and=20 Cap Assembly with AN-03 fitting on the top. This eliminates the need = for a=20 fuel rail and makes placing fuel injectors in different places along = the=20 manifold easy. I am looking at using these for my carbon fiber intake = manifold=20 design.

  

 Alex=20 Madsen

 

 

 

 

 

-----Original=20 Message-----
From: = Rotary=20 motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of=20 sqpilot@earthlink
Sent: Tuesday, May 11,=20 2004 = 5:04=20 PM
To: Rotary motors in = aircraft
Subject: [FlyRotary] Fw: = [FlyRotary] Re:=20 injector relocation predictions?

 

 

----- Original Message = -----=20

From: sqpilot@earthlink=20

To: Rotary motors in = aircraft=20

Sent: Tuesday,=20 May 11, 2004 5:01 PM

Subject: Re:=20 [FlyRotary] Re: injector relocation=20 predictions?

 

Rusty.....my intake = runners are=20 also 30 inches, just like the Powersport engine and the Mistral rotary = engine.  I am considering relocating the injectors to the first = bend of=20 the intake tubing, closer to the engine, primarily to stop the few = drops of=20 fuel that drip out of the throttlebody just after engine shutdown. = (The=20 throttlebody runss downhill for cowling clearance). My idle is great. = I don't=20 know about throttle response because I don't have the prop on it = yet. =20 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=20 idle?

    Here = is a link=20 that sells weld-on injector bosses and fuel rails.  www.ptrsds.com/manifolds%= 20.htm =20 They will also take your manifold and add the injector bosses and = fabricate a=20 custom fuel rail if you want to spend money.  Take care.  = Paul=20 Conner, thinking about spending money.

 

----- Original Message = -----=20

From: Tracy = Crook=20

To: Rotary motors in = aircraft=20

Sent:=20 Tuesday, May 11, 2004 12:46 AM

Subject:=20 [FlyRotary] Re: injector relocation=20 predictions?

 

Really? 30 inch=20 runners?  I knew they were long but that's just way too = long.  I=20 don't think injector relocation will fix power but it should do = wonders for=20 idle, low throttle tuning & throttle=20 response.

 

Tracy

 

----- = Original=20 Message -----

From: = Russell=20 Duffy

Sent:=20 Monday, May 10, 2004 9:33 PM

To:=20 Rotary motors in aircraft

Subject:=20 [FlyRotary] injector relocation=20 predictions?

 

Greetings,

 

As I = mentioned=20 before, one of the relatively easy options for improvement will be = to move=20 the 4 injectors, and keep the current intake.  As they are = now, all 4=20 injectors are in the TB, which is 30 inches away on the cold = side of=20 the engine.  I believe I can mount the two stock primaries = back in=20 the block, and can probably mount the two secondaries in the = intake, maybe=20 2 inches from the engine.  

 

Here's the=20 question, do you think this will increase power?  In other = words, am=20 I losing power by having the injectors coating the inside of the = long=20 tubing, rather than efficiently delivering the fuel to the=20 engine?  

 

Thanks,

Rusty = (thinking=20 of draining one fuel tank, and filling it with helium to improve=20 climb)   

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