Return-Path: Received: from envelope.rose-hulman.edu ([137.112.8.21] verified) by logan.com (CommuniGate Pro SMTP 4.2b3) with ESMTP-TLS id 3227538 for flyrotary@lancaironline.net; Tue, 11 May 2004 20:24:11 -0400 Received: from madsena (dhcp024-160-213-196.ma.rr.com [24.160.213.196]) (authenticated (0 bits)) by envelope.rose-hulman.edu (8.11.6/8.11.6) with ESMTP id i4C0O0J16874 (using TLSv1/SSLv3 with cipher RC4-MD5 (128 bits) verified NO) for ; Tue, 11 May 2004 19:24:08 -0500 (EST) From: "Alex Madsen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Fw: [FlyRotary] Re: injector relocation predictions? Date: Tue, 11 May 2004 19:23:27 -0500 Message-ID: <000601c437b7$5f41d7f0$f166fea9@madsena> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0007_01C4378D.766D5690" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.2627 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 This is a multi-part message in MIME format. ------=_NextPart_000_0007_01C4378D.766D5690 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit 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 ----- From: sqpilot@earthlink To: Rotary motors in aircraft 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 ----- From: Tracy Crook To: Rotary motors in aircraft 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. Tracy ----- Original Message ----- From: Russell Duffy Sent: Monday, May 10, 2004 9:33 PM To: Rotary motors in aircraft Subject: [FlyRotary] injector relocation predictions? Greetings, 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? Thanks, Rusty (thinking of draining one fuel tank, and filling it with helium to improve climb) ------=_NextPart_000_0007_01C4378D.766D5690 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Check out the EFI stuff http://www.elect= romotive-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? <= /p>

    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.<= /p>

 

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

From: Tracy Crook =

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.

 

Tracy

 

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

From: Russell Duffy

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

To:<= /font> Rotary motors in aircraft

Subject: [FlyRotary] injector relocation predictions?

 

Greetings,<= /p>

 

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.  <= /p>

 

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?  <= /p>

 

Thanks,<= /p>

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

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