X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from EXHUB003-4.exch003intermedia.net ([207.5.74.111] verified) by logan.com (CommuniGate Pro SMTP 5.2.15) with ESMTPS id 3784753 for flyrotary@lancaironline.net; Wed, 29 Jul 2009 09:05:43 -0400 Received-SPF: none receiver=logan.com; client-ip=207.5.74.111; envelope-from=jwhaley@datacast.com Received: from EXVMBX003-5.exch003intermedia.net ([207.5.74.45]) by EXHUB003-4.exch003intermedia.net ([207.5.74.111]) with mapi; Wed, 29 Jul 2009 06:05:06 -0700 From: Jeff Whaley To: 'Rotary motors in aircraft' Date: Wed, 29 Jul 2009 06:05:05 -0700 Subject: EC2 and Ed's EFISM - a great combination Thread-Topic: EC2 and Ed's EFISM - a great combination Thread-Index: AcoQTTDJYBz2QlMRTz6AFuTyMa8pMA== Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: multipart/alternative; boundary="_000_C03ABB0A7362B84BB53D544B3C305E0E01403673E328EXVMBX0035e_" MIME-Version: 1.0 --_000_C03ABB0A7362B84BB53D544B3C305E0E01403673E328EXVMBX0035e_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable The following is an excerpt from a Mike Wills post several months ago: "Anyone trying to tune up Tracy's EC2 without either having an EM2/3 or Ed = Anderson's EFISM, you're wasting your time. I spent the better part of a ye= ar tweaking the MAP table and thought I had it pretty well done. On my firs= t flight I spent a fair amount of time fiddling with mixtures and had a cou= ple of rough running spots. I installed Ed's EFISM and spent 2 days tweakin= g. In the process I got the engine running smoother than it ever has and no= w have it is idling nicely at 1350 RPM. That's 300 RPM lower than I was eve= r able to get it previously. In my opinion you really HAVE to have some sor= t of indication of what is loaded in the MAP table to effectively tune it." I whole-heartedly agree!! I installed ED's EFISM last night and was anxious= to see my MCT - let's just say it was a mess. There were a few points, mos= tly around the staging area, where I could see that some tuning had taken p= lace; however, there were several locations with wild swings from one bin t= o the next. These wild variations appeared in the middle of the high rpm ba= nd where the engine has spent very little time, as I'm usually near idle or= WOT - but man it sure is nice to actually see what's going on. Jeff --_000_C03ABB0A7362B84BB53D544B3C305E0E01403673E328EXVMBX0035e_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

The following is an excerpt from a Mike Wills post several months ago:

 

“Anyone trying to tune up Tracy's EC2 without either having an EM2/3 or Ed Anderson= 's EFISM, you're wasting your time. I spent the better part of a year tweaking= the MAP table and thought I had it pretty well done. On my first flight I spent= a fair amount of time fiddling with mixtures and had a couple of rough runnin= g spots. I installed Ed's EFISM and spent 2 days tweaking. In the process I g= ot the engine running smoother than it ever has and now have it is idling nice= ly at 1350 RPM. That’s 300 RPM lower than I was ever able to get it previously. In my opinion you really HAVE to have some sort of indicat= ion of what is loaded in the MAP table to effectively tune it.”

 

I whole-heartedly agree!! I installed ED’s EFISM last night and was anxious to see my MCT – let’s just say it was a m= ess. There were a few points, mostly around the staging area, where I could see = that some tuning had taken place; however, there were several locations with wil= d swings from one bin to the next. These wild variations appeared in the midd= le of the high rpm band where the engine has spent very little time, as I̵= 7;m usually near idle or WOT – but man it sure is nice to actually see wh= at’s going on.

Jeff

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