X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao04.cox.net ([68.230.241.35] verified) by logan.com (CommuniGate Pro SMTP 5.0c1) with ESMTP id 675557 for flyrotary@lancaironline.net; Sat, 20 Aug 2005 01:52:07 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.35; envelope-from=ALVentures@cox.net Received: from BigAl ([68.7.14.39]) by fed1rmmtao04.cox.net (InterMail vM.6.01.04.00 201-2131-118-20041027) with ESMTP id <20050820055121.KAUB15197.fed1rmmtao04.cox.net@BigAl> for ; Sat, 20 Aug 2005 01:51:21 -0400 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Injector Sizes...20B Date: Fri, 19 Aug 2005 22:51:26 -0700 Message-ID: <000001c5a54b$347b6740$6400a8c0@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C5A510.881C8F40" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C5A510.881C8F40 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable =20 BTW, can't remember if you have ever updated your software but since = you are a pioneer user of the 20B version, you can have a freebie update to = the latest version any time you want. There have been a ton of improvements = to it. =20 =20 I appreciate that; Tracy. Mine was updated 11/04 according to the date = on the cover. Should it be updated again? What's involved - installing a = new chip? Does it mean setting the mixture correction table again? =20 BTW; is the "auto tune" available for the 20B? Does auto-tune use = output from the O2 sensor?=20 =20 I'm still trying to come up with a good answer for the lack of a good manifold pressure tap on intake systems with no plenum like yours. = Manifold pressure at high throttle will always be sensed as lower than actual due = to the high velocity in the runner (Bernoulli stuff is really true =20 I'm not sure I understand that it is a problem. As long as the mixture = is set right for a given sensed MAP, what's the difference? I haven't = noted that it is an issue; or is that because I have only run on the ground. =20 Al ------=_NextPart_000_0001_01C5A510.881C8F40 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

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BTW,  can't remember if you have ever updated your software but since you are = a pioneer user of the 20B version, you can have a freebie update = to the latest version any time you want.  There have been a ton of = improvements to it. 

 

I appreciate that; = Tracy.  Mine = was updated 11/04 according to the date on the cover.  Should it be = updated again?  What’s involved – installing a new chip?  = Does it mean setting the mixture correction table again?

 

BTW; is the “auto = tune” available for the 20B?  Does auto-tune use output from the O2 = sensor?

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I'm still trying to come up with a good answer for the lack of a good = manifold pressure tap on intake systems with no plenum like yours.  Manifold pressure at high throttle will always be sensed as lower than actual due to the high velocity in the runner  (Bernoulli = stuff is really true

 

I’m not = sure I understand that it is a problem.  As long as the mixture is set right for a = given sensed MAP, what’s the difference?  I haven’t noted = that it is an issue; or is that because I have only run on the = ground.

 

Al

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