Return-Path: <13brv3@bellsouth.net> Received: from imf16aec.mail.bellsouth.net ([205.152.59.64] verified) by logan.com (CommuniGate Pro SMTP 4.1.6) with ESMTP id 2715560 for flyrotary@lancaironline.net; Sat, 08 Nov 2003 21:07:38 -0500 Received: from rad ([68.212.11.237]) by imf16aec.mail.bellsouth.net (InterMail vM.5.01.05.27 201-253-122-126-127-20021220) with ESMTP id <20031109020734.BJMZ20018.imf16aec.mail.bellsouth.net@rad> for ; Sat, 8 Nov 2003 21:07:34 -0500 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Injector Staging Date: Sat, 8 Nov 2003 20:07:35 -0600 Message-ID: <002e01c3a666$3e5a34c0$6001a8c0@rad> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_002F_01C3A633.F3BFC4C0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.4510 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 Importance: Normal In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_002F_01C3A633.F3BFC4C0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit What is injector staging? Are all the injectors not working below a certain rpm, then above the staging point all 4 injectors start operating? Thank You. -Scott Hi Scott, You're pretty much correct. Mazda has always done this with the rotary. They run the two "primary" injectors all the time, and turn the "secondary" injectors on when needed. I'm not 100% sure how Mazda's computer decides when to turn them on, but I know that Tracy's computer uses manifold pressure as the criteria. That MAP setting is adjustable btw. Cheers, Rusty ("Not going swimming today Boyington") ------=_NextPart_000_002F_01C3A633.F3BFC4C0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

What is injector staging?  Are all the injectors=20 not
working below a certain rpm, then above the staging
point all = 4=20 injectors start operating?

Thank = You.

-Scott

Hi=20 Scott,
 
You're = pretty much=20 correct.  Mazda has always done this with the rotary.  They = run the=20 two "primary" injectors all the time, and turn the "secondary" injectors = on when=20 needed.  I'm not 100% sure how Mazda's computer decides when to = turn them=20 on, but I know that Tracy's computer uses manifold pressure as the=20 criteria.  That MAP setting is adjustable btw.  =
 
Cheers,
Rusty = ("Not going=20 swimming today Boyington")
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