X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 15 Dec 2011 08:04:32 -0500 Message-ID: X-Original-Return-Path: Received: from nm20-vm0.bullet.mail.bf1.yahoo.com ([98.139.213.165] verified) by logan.com (CommuniGate Pro SMTP 5.4.2) with SMTP id 5305505 for lml@lancaironline.net; Wed, 14 Dec 2011 23:22:58 -0500 Received-SPF: none receiver=logan.com; client-ip=98.139.213.165; envelope-from=chris_zavatson@yahoo.com Received: from [98.139.212.150] by nm20.bullet.mail.bf1.yahoo.com with NNFMP; 15 Dec 2011 04:22:24 -0000 Received: from [98.139.212.233] by tm7.bullet.mail.bf1.yahoo.com with NNFMP; 15 Dec 2011 04:22:24 -0000 Received: from [127.0.0.1] by omp1042.mail.bf1.yahoo.com with NNFMP; 15 Dec 2011 04:22:24 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 115050.34986.bm@omp1042.mail.bf1.yahoo.com Received: (qmail 51638 invoked by uid 60001); 15 Dec 2011 04:22:23 -0000 DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:X-Mailer:References:Message-ID:Date:From:Reply-To:Subject:To:MIME-Version:Content-Type; b=zBz7OIiTvoaU2Qi0ZWzli6Gxxy0Ti6HtQCQs2sxl3vM2lMxrS0tAeccG9SqyHfpxYV7uVVrQZ1a5A3LfojtKHSTd5YDcebFR3sNvBHZz+Hjtj/tbgN7bu32mclAWxNi6v8lApp841HAgbjlylgOV3EYUcron17iyIfKilOVZUWY=; X-YMail-OSG: 466ZO0MVM1lZP.3VD_Y6lkMGZi5m3AC8XUn2shHAE85ZTv0 P0rTKrF6QTt72FP_gbjdP.i3kkFZvOR98lYbsZyIt.og59f8wfucOpPDIgib LWEO7_KHbO17yJHsbo86_SK.tW_a4gte0JDFf3bxMLPxOE.WCYo7ix6L61LQ kOAc6MTgJE_iYoT26hXxVv33ShQxt0G99rZi.pD9mskkbndXhMY8.0R8ESDr J1OgL.yJ.G7etFxudhFldTsZYr2BQbvN1VtTNFM7ZhTuYi_Xg8HLR9s8W3FH Wxf05Q5JGGkMBeRqsN80PdTwq_7ekxJZcEztY1jv8bpKAI1C8C54IyW1E59s S5EFkjcHfSDSM.kwnklTWTfZVM8RTscvCZHOzKeAekBc9QYQ.fnoXjJ_me7k 9S8jPjtG3itq.ljnBZpFar3lvM_pHrn9q4qwlxnd4fYVgo_iJlhGR5AuBrJJ uAqIn2MwCE7Lwg4G1nYYm_Xn97I6JdpdJTwIyTAhT8PD3R.hK15NLyQP7hDY nytIkLA-- Received: from [99.137.192.233] by web36906.mail.mud.yahoo.com via HTTP; Wed, 14 Dec 2011 20:22:23 PST X-Mailer: YahooMailWebService/0.8.115.331698 References: <4B5900C0-DBE6-4EA6-85FD-DFD9EF785649@yahoo.com> X-Original-Message-ID: <1323922943.42059.YahooMailNeo@web36906.mail.mud.yahoo.com> X-Original-Date: Wed, 14 Dec 2011 20:22:23 -0800 (PST) From: Chris Zavatson Reply-To: Chris Zavatson Subject: Re: [LML] Electronic Ignition System Application X-Original-To: Lancair Mailing List MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-2114655128-1691274607-1323922943=:42059" ---2114655128-1691274607-1323922943=:42059 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Steve,=0AI played around with that concept (along with cocking the throttle= plate)=A0after the Lancair Ada visit several years ago.=A0 I ended=A0up ha= ving to=A0pull out about 3 to 4 in. of MP to=A0 the mixture.=A0 Every engin= e will be different in this regard.=A0 The need for speed dictated I keep t= he throttle full open and just live with a rich cylinder. :-)=0AChris=0A=0A= Chris Zavatson=0AN91CZ=0A360std=0Awww.N91CZ.net=0A=0AOn Dec 14, 2011, at 10= :36 AM, "Steve Colwell" wrote:=0A=0A=0AChris and Sco= tt,=0A>=A0=0A>The Advanced Pilot Seminar suggests experimenting with carb h= eat to improve atomization and mixture distribution.=A0 Those of us old eno= ugh to have messed with carbureted cars and heat risers understand the theo= ry.=A0 The trade off is expanding the mixture by heating it.=A0 Might help,= might hurt. =0A>=A0=0A>Steve Colwell=0A>=0A>Subject: [LML] Re: Electronic = Ignition System Application=0A>=0A>Chris,=0A>=A0=0A>Yes, part of the proble= m=A0is induction/mixture=A0differences caused by the throttle plate positio= n.=A0 I.E. WOT may be a=A0quite different distribution=A0than at partial th= rottle.=0A>=A0=0A>Uh, switch over to injection.=A0 Then you only=A0have to = deal with injector engine=A0position locations=A0resulting in=A0differences= in atomization of the fuel because of variable upper cowl air flow/pressur= e.=0A>=A0=0A>Scott=0A>=A0=0A>In a message dated 12/13/2011 9:01:14 A.M. Cen= tral Standard Time, chris_zavatson@yahoo.com writes:=0A>Scott,=0A>>"....., = not to mention the induction system=A0limitations inherent carbureted engin= es."=0A>>Now you're on to something..=0A>>I fear my=A0not-so-ideal=A0mixtur= e distribution would the limiting factor even with EI.=0A>>Chris=0A>>=A0=0A= >>Chris Zavatson=0A>>N91CZ=0A>>360std=0A>>www.N91CZ.net=0A>>=A0 ---2114655128-1691274607-1323922943=:42059 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
Steve,
= I played around with that concept (along with cocking the throttle plate)&n= bsp;after the Lancair Ada visit several years ago.  I ended up ha= ving to pull out about 3 to 4 in. of MP to  the mixture.  Ev= ery engine will be different in this regard.&= nbsp; The need for speed dictated I keep the throttle full open and just li= ve with a rich cylinder. :-)
Chris

Chris Zavatson
N91CZ
360std

On Dec 14, 2011, a= t 10:36 AM, "Steve Colwell" <mcmess1= 919@yahoo.com> wrote:

Chris an= d Scott,
 
The Adva= nced Pilot Seminar suggests experimenting with carb heat to improve atomiza= tion and mixture distribution.  Those of us old enough to have messed = with carbureted cars and heat risers understand the theory.  The trade= off is expanding the mixture by heating it.  Might help, might hurt. =
 
Steve Co= lwell

S= ubject: [LML] Re: Electronic Ignition System Application
 
Chris,
 
Yes, part of the problem is induction/mixture differences c= aused by the throttle plate position.  I.E. WOT may be a quite di= fferent distribution than at partial throttle.
 
Uh, switch over to injection.  Then you only have to deal w= ith injector engine position locations resulting in differen= ces in atomization of the fuel because of variable upper cowl air flow/pres= sure.
 
Scott
 
In a message dated 12/13/2011 9:01:14 A.M. Central Standard Time, chris_zavatson@yahoo.com write= s:
Scott,
"....., not to mention the induction sys= tem limitations inherent carbureted engines."
Now you're on to something..
I fear my not-so-ideal mixture= distribution would the limiting factor even with EI.
Chris
 
Chris Zavatson
N91CZ
360std
 
---2114655128-1691274607-1323922943=:42059--