X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imr-db01.mx.aol.com ([205.188.91.95] verified) by logan.com (CommuniGate Pro SMTP 5.4.0) with ESMTP id 5027480 for flyrotary@lancaironline.net; Tue, 21 Jun 2011 10:52:16 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.188.91.95; envelope-from=Bktrub@aol.com Received: from imo-ma04.mx.aol.com (imo-ma04.mx.aol.com [64.12.78.139]) by imr-db01.mx.aol.com (8.14.1/8.14.1) with ESMTP id p5LEpKVa029689 for ; Tue, 21 Jun 2011 10:51:20 -0400 Received: from Bktrub@aol.com by imo-ma04.mx.aol.com (mail_out_v42.9.) id q.ed5.112ee8ca (43964) for ; Tue, 21 Jun 2011 10:51:18 -0400 (EDT) Received: from smtprly-dd01.mx.aol.com (smtprly-dd01.mx.aol.com [205.188.84.129]) by cia-dd02.mx.aol.com (v129.10) with ESMTP id MAILCIADD025-d3eb4e00afdd39a; Tue, 21 Jun 2011 10:51:18 -0400 Received: from webmail-d091 (webmail-d091.sim.aol.com [205.188.255.2]) by smtprly-dd01.mx.aol.com (v129.10) with ESMTP id MAILSMTPRLYDD017-d3eb4e00afdd39a; Tue, 21 Jun 2011 10:51:09 -0400 References: To: flyrotary@lancaironline.net Subject: Re: [FlyRotary] Re: This has got to stop Date: Tue, 21 Jun 2011 10:51:09 -0400 X-AOL-IP: 50.46.146.205 In-Reply-To: X-MB-Message-Source: WebUI MIME-Version: 1.0 From: bktrub@aol.com X-MB-Message-Type: User Content-Type: multipart/alternative; boundary="--------MB_8CDFE39CA808BA7_11B4_B96E2_webmail-d091.sysops.aol.com" X-Mailer: AOL Webmail 33867-STANDARD Received: from 50.46.146.205 by webmail-d091.sysops.aol.com (205.188.255.2) with HTTP (WebMailUI); Tue, 21 Jun 2011 10:51:09 -0400 Message-Id: <8CDFE39CA796784-11B4-54F0A@webmail-d091.sysops.aol.com> X-Spam-Flag:NO X-AOL-SENDER: Bktrub@aol.com ----------MB_8CDFE39CA808BA7_11B4_B96E2_webmail-d091.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="us-ascii" I am using the stock 13 BREW sensors- two sensors and trigger wheel. I am= using four chevy LS1 coils. Brian Trubee -----Original Message----- From: Kelly Troyer To: Rotary motors in aircraft Sent: Tue, Jun 21, 2011 7:30 am Subject: [FlyRotary] Re: This has got to stop Brian, You made no mention of the type of sensors and coils you are using.....= ....Are you=20 using the 13BREW two sensor (pickups) and trigger-wheel system with stock= coils or "GM" coils??............... =20 Kelly Troyer "DYKE DELTA JD2" (Eventually) "13B ROTARY"_ Engine "RWS"_RD1C/EC2/EM2 "MISTRAL"_Backplate/Oil Manifold "TURBONETICS"_TO4E50 Turbo From: Mark Steitle To: Rotary motors in aircraft Sent: Tue, June 21, 2011 7:10:36 AM Subject: [FlyRotary] Re: This has got to stop Brian, =20 Your symptoms are exactly what I fought with for over a year with my 20B.= The problem turned out to be the CAS. I had thought it would be a big= improvement to go with the Renesis type CAS, so I had Tracy convert my EC= -2 to work with the crank mount CAS, and I added a trigger wheel and brack= et to the front of my engine. Depending on the sensor gap and the phase= of the moon, it would run great up to the upper 5000's, then it would sta= rt mis-firing badly. No amount of tuning would correct the problem. This= may not be your exact scenario, but I hope it will help you determine if= it is ignition or fuel. My guess is ignition. =20 Oh, to fix my problem, I had Tracy convert my EC-2 back to work with the= old "distributor" style CAS, reinstalled the old CAS, and that corrected= the probmel. It now runs great up to > 70000 rpm.=20 Mark=20 On Mon, Jun 20, 2011 at 11:19 PM, wrote: I'm going to ground my airplane until I get to the bottom of this. I can= tune it on the ground and it will run just fine all the way from idle to= full throttle. I get about 5300 rpm at full throttle at 29 in hg. MP. I= have 12 hours in the air so far but can't get past this issue. Other than= this, the plane is an absolute joy.=20 =20 When I get off the ground, when I go through around 5400 RPM, I start to= get stumbling and engine roughness. At this RPM I am about 18 inches MP.= Just below this point, I am making about 50% power and the engine will ru= n smoothly.=20 =20 I went to another airport and had a lot of roughness on takeoff, but I am= used to it and so continued on my way to my home airport. When I got back= I found out that someone at the other airport wanted to report me to FSDO= because he thought my engine was going to blow up, but he didn't get my= tail number.=20 =20 So, I thought I had it sorted out before I flew today, but it's back to th= e drawing board. I've tried both leaning and enriching the mixture at all= throttle settings, but to no avail. At and above 5400 rpm I start getting= all sorts of roughness so I think that it has to be an ignition issue. My= injector wiring is separated from my coil wiring, but could I be getting= inductance between the different coil wiring? =20 I have a 93 13 BREW normally aspirated, 2.85 RWS redrive, EM2, EC2, 88x 74= CAtto Prop. This is getting to be really frustrating. It's got to be some= thing simple that I'm overlooking. I don't know anyone with an ocilliscope= , and have never used one.=20 =20 Brian Trubee ----------MB_8CDFE39CA808BA7_11B4_B96E2_webmail-d091.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="us-ascii"
I am using the stock 13= BREW sensors- two sensors and trigger wheel. I am using four chevy LS1 co= ils.
 
Brian Trubee



-----Original Message-----
From: Kelly Troyer <keltro@att.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Tue, Jun 21, 2011 7:30 am
Subject: [FlyRotary] Re: This has got to stop

Brian,
   You made no mention of the type of sensors and= coils you are using.........Are you
using the 13BREW two sensor (pickups) and trigger-wheel system with= stock coils
or "GM" coils??...............
  
Kelly Troyer
"DYKE DELTA JD2" (Eventually)=
"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil Manifold
"TURBONETICS"_TO4E50 Turbo

=
From: Mark Steitle <msteitle@gmail.com>
To: Rotary motors in aircr= aft <flyrotary@lancairon= line.net>
Sent: Tue, June 21, 2011= 7:10:36 AM
Subject: [FlyRotary] Re:= This has got to stop

Brian, =20

Your symptoms are exactly what I fought with for over a year with my= 20B.  The problem turned out to be the CAS.  I had thought it= would be a big improvement to go with the Renesis type CAS, so I had Trac= y convert my EC-2 to work with the crank mount CAS, and I added a trigger= wheel and bracket to the front of my engine.  Depending on the senso= r gap and the phase of the moon, it would run great up to the upper 5000's= , then it would start mis-firing badly.  No amount of tuning would co= rrect the problem.  This may not be your exact scenario, but I hope= it will help you determine if it is ignition or fuel.  My guess is= ignition.  

Oh, to fix my problem, I had Tracy convert my EC-2 back to work with= the old "distributor" style CAS, reinstalled the old CAS, and that correc= ted the probmel.  It now runs great up to > 70000 rpm. 

Mark 


On Mon, Jun 20, 2011 at 11:19 PM, <bktrub@aol.com&g= t; wrote:

I'm going to ground my airplane until I get to the bottom of this. I= can tune it on the ground and it will run just fine all the way from idle= to full throttle. I get about 5300 rpm at full throttle at 29 in hg. MP.= I have 12 hours in the air so far but can't get past this issue. Other th= an this, the plane is an absolute joy.
 
When  I get off the ground, when I go through around 5400 RPM,= I start to get stumbling and engine roughness. At this RPM I am about 18= inches MP. Just below this point, I am making about 50% power and the eng= ine will run smoothly.
 
I went to another airport and had a lot of roughness on takeoff, but= I am used to it and so continued on my way to my home airport. When I got= back I found out that someone at the other airport wanted to report me to= FSDO because he thought my engine was going to blow up, but he didn't get= my tail number.
 
So, I thought I had it sorted out before I flew today, but it's back= to the drawing board. I've tried both leaning and enriching the mixture= at all throttle settings, but to no avail. At and above 5400 rpm I start= getting all sorts of roughness so I think that it has to be an ignition= issue. My injector wiring is separated from my coil wiring, but could I= be getting inductance between the different coil wiring?
 
I have a 93 13 BREW normally aspirated, 2.85 RWS redrive, EM2, EC2,= 88x 74 CAtto Prop. This is getting to be really frustrating. It's got to= be something simple that I'm overlooking. I don't know anyone with an oci= lliscope, and have never used one.
 
Brian Trubee


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