X-Virus-Scanned: clean according to Sophos on Logan.com From: Received: from omr-a018e.mx.aol.com ([204.29.186.64] verified) by logan.com (CommuniGate Pro SMTP 6.1.13) with ESMTPS id 9245575 for flyrotary@lancaironline.net; Wed, 07 Dec 2016 15:50:55 -0500 Received-SPF: pass receiver=logan.com; client-ip=204.29.186.64; envelope-from=ARGOLDMAN@aol.com Received: from mtaomg-aao02.mx.aol.com (mtaomg-aao02.mx.aol.com [172.27.21.16]) by omr-a018e.mx.aol.com (Outbound Mail Relay) with ESMTP id 6CADD3800151 for ; Wed, 7 Dec 2016 15:50:37 -0500 (EST) Received: from core-abx12g.mail.aol.com (core-abx12.mail.aol.com [172.27.155.129]) by mtaomg-aao02.mx.aol.com (OMAG/Core Interface) with ESMTP id 105E63800008C for ; Wed, 7 Dec 2016 15:50:36 -0500 (EST) Full-name: ARGOLDMAN Message-ID: <11dd914.56d974d5.4579d01b@aol.com> Date: Wed, 7 Dec 2016 15:50:35 -0500 Subject: Re: [FlyRotary] Re: Gonna be a lean year or which way do I lean To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_11dd914.56d974d5.4579d01b_boundary" X-Mailer: AOL 9.8 sub 2019 X-Originating-IP: [23.25.33.118] x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20150623; t=1481143837; bh=vPaNyvy3fYMyBh4B1Xd71/nzmAqum3270dJkERRfNCA=; h=From:To:Subject:Message-ID:Date:MIME-Version:Content-Type; b=g/Q446qwBooZey+94whaUDya3V4APEWdJotuEnbx5IG5KvH2lQmEdLDqwsq4ulvtX i8wydeWZD86GDf+hzSpL9T4IP5KcTU8JqsLK7aR/du8wsUr5iuVdCTFznKrr++oqGZ W4xdHl4896nevmlAoHSsn2/UUazMGir2m1ZySsD0= x-aol-sid: 3039ac1b15105848761c1ebc --part1_11dd914.56d974d5.4579d01b_boundary Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Content-Language: en Thanks all =20 =20 In a message dated 12/7/2016 2:34:02 P.M. Central Standard Time, =20 flyrotary@lancaironline.net writes: Gents, Bobby, very interesting figures.Mine are somewhat different to th= e=20 extent that I have just ordered a fueltech ECU as it will self tune on A/F= =20 and the drag racers tell me that the exhaust is cooler at full power which= =20 I desperately need. I can get up to 1800 degrees with egt's burning off= . =20 Currently running a microtech ECU which has been good, but does not do=20 what the fuel tech does and Microtech are 'variable" with backup. Neil. On 12/8/2016 7:13 AM, Bobby J. Hughes wrote: Rich,=20 A wideband O2 meter is your best friend. Get a PLX device O2 if you don= =E2=80=99t=20 have one. It will support Wideband or Narrow Band outputs to your EC3.It= =20 will shorten you tuning time and give you a hard number to look at during= =20 tuning and flight operations.=20 These are my power settings and EGT=E2=80=99s. EGT location makes a big= =20 difference. EGT numbers are ball park with probes located 2.5=E2=80=9D = -3=E2=80=9D from header.=20 Take off Power =E2=80=93 Target 12:7:1 F/A =E2=80=93 EGT typically unde= r 1675F at 38=E2=80=9DMP=20 / 7000 rpm.=20 Best Power =E2=80=93 target 13.5:1 F/A =E2=80=93EGT=E2=80=99s typically= under 1600F below 30=E2=80=9D MP=20 Complete fuel burn=E2=80=93 target 14:7:1 - Produces hottest EGT=E2=80= =99s . I have seen=20 up to 1700 F+ at high power settings at less than 30=E2=80=9D MP so be= careful.=20 Lean operation with power loss =E2=80=93 Target 15.8:1 or lower. Power dr= ops =20 dramatically. I see EGT=E2=80=99s between 1475F and 1525 F depending on en= gine rpm.=20 Stay away from 14:7:1 F/A except for ground and low power flight. =20 Bobby Hughes=20 =20 =20 From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] =20 Sent: Wednesday, December 07, 2016 1:59 PM To: Rotary motors in aircraft Subject: [FlyRotary] Gonna be a lean year or which way do I lean =20 =20 =20 Greetings fellow roteryophiles. =20 =20 I am about to overhaul my renesis and in an effort not to destroy the=20 thing, as I use it, I have a leaning question. =20 =20 It is normally aspirated with an RD1-C box =20 =20 Using Tracy's EC-3 (or is it the em or rc-- whatever) what is a safe=20 leaning procedure.=20 =20 =20 Is it suggested to run these things LOP, ROP O(n)P or just go for=20 smoothness at any fuel burn? =20 =20 My understanding is to run the beast full throttle and control the power= =20 output by the RPM (IVO prop--ughish) =20 =20 =20 Of course my concern is with detonation and destruction of the apex seals= =20 since they, at certain parts of the rotation, from my reading, show a=20 longer face to the chambers. =20 =20 Someone, please help me so I don't have to restrict my carnivorous=20 activities to "lean" meat. =20 =20 Thanks =20 =20 Rich=20 --part1_11dd914.56d974d5.4579d01b_boundary Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Content-Language: en
Thanks all
 
In a message dated 12/7/2016 2:34:02 P.M. Central Standard Time,=20 flyrotary@lancaironline.net writes:

Gents,  Bobby, very interesting figures.Mine are somewhat differ= ent to=20 the extent that I have just ordered a fueltech ECU as it will self tune= on A/F=20 and the drag racers tell me that the exhaust is cooler at full power whi= ch I=20 desperately need.  I can get up to 1800 degrees with egt's burning= =20 off.  Currently running a microtech ECU which has been good, but do= es not=20 do what the fuel tech does and Microtech are 'variable" with backup.&nbs= p;=20 Neil.


On 12/8/2016 7:13 AM, Bobby J. Hughes=20 wrote:

 

Rich,

 

A=20 wideband O2 meter is=20 your best friend. Get a PLX device O2 if you don=E2=80=99t have one.= It=20 will support Wideband or Narrow Band outputs to your EC3.It=20 will shorten you tuning time and give you a hard number to look at dur= ing=20 tuning and flight operations.

 

These=20 are my power settings and EGT=E2=80=99s. EGT location makes a= big difference.=20  EGT numbers are ball park with probes located 2.5=E2=80=9D = -3=E2=80=9D from=20 header.

 

 

Take=20 off Power =E2=80=93 Target 12:7:1 F/A =E2=80=93 EGT=20  typically=20 under 1675F at 38=E2=80=9DMP=20 /=20 7000=20 rpm.

Best=20 Power =E2=80=93 target 13.5:1  F/A =E2=80=93EGT=E2=80=99s=20 typically=20 under 1600F  below 30=E2=80=9D MP

Complete=20 fuel burn=E2=80=93 target 14:7:1  - Produces hottest EGT=E2=80=99= s . I have seen up to=20 1700 F+ at high power settings  at=20 less than 30=E2=80=9D MP so=20 be careful.

Lean=20 operation with power loss =E2=80=93 Target 15.8:1 or lower. Power drop= s=20 dramatically. I see EGT=E2=80=99s between 1475F and 1525 F depending= on engine=20 rpm.

 

Stay=20 away from 14:7:1 F/A except for ground and low power flight.=20

 

Bobby=20 Hughes

 

 

 

From: Rotary= motors=20 in aircraft [mailto:flyrotary@lancaironline.net]=20
Sent: Wednesday, December 07, 2016 1:59 PM
To: Ro= tary=20 motors in aircraft
Subject: [FlyRotary] Gonna be a lean year= or=20 which way do I lean

 

 

 

Greetings=20 fellow roteryophiles.

 

I=20 am about to overhaul my renesis and in an effort not to destroy the th= ing,=20 as I use it, I have a leaning question.

 

It=20 is normally aspirated with an RD1-C box

 

Using=20 Tracy's EC-3 (or is it the em or rc-- whatever) what is a safe leaning= =20 procedure.

 

Is=20 it suggested to run these things LOP, ROP O(n)P or just go for smoothn= ess=20 at any  fuel burn?

 

My=20 understanding is to run the beast full throttle and control the power= output=20 by the RPM (IVO prop--ughish)

 

 

Of=20 course my concern is with detonation and destruction of the apex seals= since=20 they, at certain parts of the rotation, from my reading, show a longer= face=20 to the chambers.

 

Someone,=20 please help me so I don't have to restrict my carnivorous activities= to=20 "lean" meat.

 

Thanks

 

Rich 


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