Return-Path: Received: from [65.54.169.63] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 4.2.8) with ESMTP id 617171 for flyrotary@lancaironline.net; Sat, 22 Jan 2005 00:20:31 -0500 Received-SPF: pass receiver=logan.com; client-ip=65.54.169.63; envelope-from=lors01@msn.com Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Fri, 21 Jan 2005 21:20:00 -0800 Message-ID: Received: from 4.174.3.21 by BAY3-DAV33.phx.gbl with DAV; Sat, 22 Jan 2005 05:19:11 +0000 X-Originating-IP: [4.174.3.21] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: P Port fuel Injection Date: Sat, 22 Jan 2005 00:19:11 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00BD_01C50017.FF400280" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MIMEOLE: Produced By MSN MimeOLE V9.10.0009.2900 Seal-Send-Time: Sat, 22 Jan 2005 00:19:11 -0500 X-OriginalArrivalTime: 22 Jan 2005 05:20:00.0761 (UTC) FILETIME=[055ADE90:01C50042] This is a multi-part message in MIME format. ------=_NextPart_000_00BD_01C50017.FF400280 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable > =20 > I'd bet that the better BSFC with remoted injectors that's hyped on = the > other list was only achieved (wasn't the info from the Mazda factory > racing program?) with perfect injector placement & timing based on = more > testing than any of us can do in our proverbial garages. (Is = injector > timing variable on Tracy's or any other injection controller out = there?) > > >From one neophite to another.... > > Charlie > I think that better BSFC report was from the Racing Beat 3 rotor 900 = > HP turbo engine project. I think this is so far removed from what = we=20 > are doing that it's not applicable, even if true. > =20 > BTW, The EC2 does use port timed injection. > =20 > Tracy Understood, but does it matter that the timing of each injection=20 relative to the port open/close cycle changes when the injector is = moved=20 from the block to over a foot away, & can it be adjusted like ignition = timing? Charlie Good point, I missed the full implication of your original question. = No, the injection timing is not separately adjustable and I don't know = if that would help in the case of large displacement from the port. One = important thing to note is that the air volume in the long runner can be = larger than the intake charge at low throttle. This makes it virtually = impossible to properly time the injection pulse of a "long distance = injector" without knowing the future, if you get my meaning. Tracy (marking this down as #9999 on list of things to try) ------=_NextPart_000_00BD_01C50017.FF400280 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 
> 
> I'd bet that the better BSFC with remoted = injectors=20 that's hyped on the
> other list was only achieved (wasn't the = info from=20 the Mazda factory
> racing program?) with perfect injector = placement=20 & timing based on more
> testing than any of us can do in = our=20 proverbial garages. (Is injector
> timing variable on Tracy's or = any=20 other injection controller out there?)
>
>  >From = one=20 neophite to another....
>
> Charlie
> I think that = better=20 BSFC report was from the Racing Beat 3 rotor 900
> HP turbo = engine=20 project.  I think this is so far removed from what we
> = are doing=20 that it's not applicable, even if true.
> 
> BTW, = The EC2=20 does use port timed injection.
> 
> = Tracy

Understood,=20 but does it matter that the timing of each injection
relative to = the port=20 open/close cycle changes when the injector is moved
from the block = to over=20 a foot away, & can it be adjusted like ignition=20
timing?

Charlie

Good point, I missed the full = implication of=20 your original question.  No, the injection timing is not = separately=20 adjustable and I don't know if that would help in the case of large=20 displacement from the port.  One important thing to note is that = the=20 air volume in the long runner can be larger than the intake = charge at low=20 throttle.  This makes it virtually impossible to properly time = the=20 injection pulse of a "long distance injector" without knowing the = future, if=20 you get my meaning.
 
Tracy  (marking this down as #9999 on list of things to=20 try)
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