X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao107.cox.net ([68.230.241.39] verified) by logan.com (CommuniGate Pro SMTP 5.2.16) with ESMTP id 3881267 for flyrotary@lancaironline.net; Fri, 09 Oct 2009 22:38:13 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.39; envelope-from=rv-4mike@cox.net Received: from fed1rmimpo01.cox.net ([70.169.32.71]) by fed1rmmtao107.cox.net (InterMail vM.8.00.01.00 201-2244-105-20090324) with ESMTP id <20091010023737.FTJQ21470.fed1rmmtao107.cox.net@fed1rmimpo01.cox.net> for ; Fri, 9 Oct 2009 22:37:37 -0400 Received: from wills ([68.105.87.66]) by fed1rmimpo01.cox.net with bizsmtp id qqdb1c00C1RstZw03qdd8D; Fri, 09 Oct 2009 22:37:37 -0400 X-VR-Score: -100.00 X-Authority-Analysis: v=1.0 c=1 a=i9ceE_VEvKUA:10 a=kviXuzpPAAAA:8 a=Ia-xEzejAAAA:8 a=8I59ToNzAAAA:8 a=WbITLuiz7ee8NxWbAbMA:9 a=pa5qjqtRguAlu2higbEA:7 a=ZsKcryJJCJqemHZZPsvRfxNE16QA:4 a=4vB-4DCPJfMA:10 a=EzXvWhQp4_cA:10 a=UretUmmEAAAA:8 a=pedpZTtsAAAA:8 a=fH4DGug1nvsxb6ob-lMA:9 a=LAR_RKv7u3OqKuoMdScA:7 a=nIdIynNMeHIk0OJww_5Jo02-i2QA:4 a=iVkDmfvjeKcA:10 a=eJojReuL3h0A:10 X-CM-Score: 0.00 Message-ID: From: "Mike Wills" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: engine runup video Date: Fri, 9 Oct 2009 19:37:35 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_002F_01CA4917.F3E9ED30" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5843 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 This is a multi-part message in MIME format. ------=_NextPart_000_002F_01CA4917.F3E9ED30 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Tracy, Am I missing something? My manual says Mode 6 is to adjust for = dissimilar sized secondary injectors. I suppose you could use this, but = wouldnt seem to be optimum. Please explain. Also, I would suggest that even if not needed (though I dont see how), = having an EM2/3 or EFISM and being able to see the MCT in real time is = invaluable for understanding what's happening with the engine. In my = opinion, when you are flying something as experimental in nature as this = it's not possible to know too much. =20 Mike ----- Original Message -----=20 From: Tracy Crook=20 To: Rotary motors in aircraft=20 Sent: Thursday, October 08, 2009 2:29 PM Subject: [FlyRotary] Re: engine runup video That method will work but I would suggest using Mode 6 (if you have = it). Much easier to do and does not require EM2/3 to see where to make = the adjustment. =20 Tracy On Wed, Oct 7, 2009 at 12:01 AM, Mike Wills wrote: Bill, I cant speak for anyone else, but my engine goes lean when it = stages. I know what location in the MCT the transition occurs by looking = at the MCT using the EFISM in real time. I simply set the first location = where it runs on 4 injectors way richer than the previous location. The = next couple of locations gradually taper back down to a more normal = mixture. At this point I trial and error adjust the rich location back = down until the bog re-appears, then richen back up a little. Its really = pretty straight forward with the EFISM - I assume Tracy's EM makes it = equally easy. Mike Wills RV-4 N144MW ----- Original Message -----=20 From: Bill Bradburry=20 To: Rotary motors in aircraft=20 Sent: Tuesday, October 06, 2009 5:24 AM Subject: [FlyRotary] Re: engine runup video Mike, Judging from the ease with which you tuned out the staging bog, = you have a pretty good handle on how to tune the engine with the EC-2/3. For the benefit of the ones of us who are still trying to = understand that tricky little gem, could you give us some kind of blow = by blow as to how you went about tuning the bog out? I am wondering = what you looked for to determine where the problem was and what you then = did with trial and error? to tune it out. Bill B=20 -------------------------------------------------------------------------= - From: Rotary motors in aircraft = [mailto:flyrotary@lancaironline.net] On Behalf Of Mike Wills Sent: Sunday, October 04, 2009 12:35 PM To: Rotary motors in aircraft Subject: [FlyRotary] engine runup video For anyone who hasnt had that first engine run and is looking for = some motivation. A buddy visited the hangar a few weeks ago and shot = some video of an engine runup. He posted it to his website and you can = find it here: http://www.stinsonvoyager.com/images/MikeWills13bEngineRun.wmv This was shot right after I re-installed my original muffler after = the aborted DNA muffler test. Noticeable in the video is the big staging = bog. I had this tuned out about 15 minutes after he shot the video. Mike Wills RV-4 N144MW ------=_NextPart_000_002F_01CA4917.F3E9ED30 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Tracy,
 
Am I missing something? My manual says = Mode 6 is to=20 adjust for dissimilar sized secondary injectors. I suppose you could use = this,=20 but wouldnt seem to be optimum. Please explain.
 
Also, I would suggest that even if not = needed=20 (though I dont see how), having an EM2/3 or EFISM and being able to = see the=20 MCT in real time is invaluable for understanding what's happening with = the=20 engine. In my opinion, when you are flying something as experimental in = nature=20 as this it's not possible to know too much.  
 
Mike
----- Original Message -----
From:=20 Tracy=20 Crook
Sent: Thursday, October 08, = 2009 2:29=20 PM
Subject: [FlyRotary] Re: engine = runup=20 video

That method will work but I would suggest using Mode 6 = (if you=20 have it).  Much easier to do and does not require EM2/3 to see = where to=20 make the adjustment. 

Tracy

On Wed, Oct 7, 2009 at 12:01 AM, Mike Wills = <rv-4mike@cox.net>=20 wrote:
Bill,
 
 I cant speak for anyone else, = but my=20 engine goes lean when it stages. I know what location in the MCT the = transition occurs by looking at the MCT using the EFISM in real = time. I=20 simply set the first location where it runs on 4 injectors way = richer than=20 the previous location. The next couple of locations gradually taper = back=20 down to a more normal mixture. At this point I trial and error = adjust the=20 rich location back down until the bog re-appears, then richen back = up a=20 little. Its really pretty straight forward with the EFISM - I assume = Tracy's=20 EM makes it equally easy.
 
Mike Wills
RV-4 N144MW
-----=20 Original Message -----
From:=20 Bill Bradburry
To:=20 Rotary = motors in=20 aircraft Sent:=20 Tuesday, October 06, 2009 5:24 AM Subject:=20 [FlyRotary] Re: engine runup video

Mike,

Judging from the ease with which you = tuned out the=20 staging bog, you have a pretty good handle on how to tune the = engine with=20 the EC-2/3.

For the benefit of the ones of us who = are still=20 trying to understand that tricky little gem, could you give us = some kind=20 of blow by blow as to how you went about tuning the bog out?  = I am=20 wondering what you looked for to determine where the problem was = and what=20 you then did with trial and error? to tune it = out.

Bill B 

 

From:=20 Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Mike = Wills
Sent: Sunday, October 04, = 2009 12:35=20 PM
To: Rotary = motors in=20 aircraft
Subject:=20 [FlyRotary] engine runup video

For anyone who hasnt = had that=20 first engine run and is looking for some motivation. A buddy = visited the=20 hangar a few weeks ago and shot some video of an engine runup. He = posted=20 it to his website and you can find it = here:

 

http://www.stinsonvoyager.com/images/MikeWills13bEngineRu= n.wmv

 

This was shot right = after I=20 re-installed my original muffler after the aborted DNA muffler = test.=20 Noticeable in the video is the big staging bog. I had this tuned = out about=20 15 minutes after he shot the video.

 

Mike=20 Wills

RV-4=20 = N144MW


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