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Sat, 30 Apr 2011 06:34:22 PDT X-Mailer: YahooMailRC/559 YahooMailWebService/0.8.110.299900 References: Date: Sat, 30 Apr 2011 06:34:22 -0700 (PDT) From: Kelly Troyer Subject: Re: Timing Question for Tracy To: Rotary motors in aircraft In-Reply-To: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-471615319-1304170462=:71594" --0-471615319-1304170462=:71594 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Thanks Tracy !!...........In other words "Don't Mess With =0Ait"...........= .......<:)=0A=0AThanks again.=0A=A0=0AKelly Troyer=0A"DYKE DELTA JD2" (Even= tually)=0A"13B ROTARY"_ Engine=0A"RWS"_RD1C/EC2/EM2=0A"MISTRAL"_Backplate/O= il Manifold=0A"TURBONETICS"_TO4E50 Turbo=0A=0A=0A=0A=0A____________________= ____________=0AFrom: Tracy =0ATo: Rotary motors in airc= raft =0ASent: Sat, April 30, 2011 8:08:58 AM= =0ASubject: [FlyRotary] Re: Timing Question for Tracy=0A=0AThere's never a = simple yes or no answer to this stuff. =A0 =A0 The EC2/3 can move =0Athe en= tire timing curve up or down by 10 degrees in 1 degree steps.=A0 But, if fo= r =0Ainstance you retarded the trigger wheel by 10 degrees and made up for = it by =0Aadvancing the EC2/3 timing adjustment by 10 degrees, the controlle= r would =0Aprobably be unable to deliver the full range of ignition advance= when at low =0Amanifold pressure (same as 'vacuum advance' in a car).=A0= =A0 So, I would recommend =0Athat the trigger wheel not be moved from the s= tock location.=0A=0ATracy=0A=0A=0AOn Sat, Apr 30, 2011 at 12:41 AM, Kelly T= royer wrote:=0A=0ATracy, =0A>=A0=A0=A0 I will try to be mo= re clear............If the stock position of the sensor =0A>is moved slight= ly=0A>in relation to the trigger wheel can the EC2-3=A0 compensate or does = the trigger =0A>wheel=0A>have to be repositioned to regain the stock timing= relative to TDC =0A>?...............=0A>=0A>Thanks,=0A>=0A>=A0Kelly Troyer= =0A>"DYKE DELTA JD2" (Eventually)=0A>"13B ROTARY"_ Engine=0A>"RWS"_RD1C/EC2= /EM2=0A>"MISTRAL"_Backplate/Oil Manifold=0A>"TURBONETICS"_TO4E50 Turbo=0A>= =0A>=0A>=0A>=0A>=0A________________________________=0AFrom: Tracy =0A>To: Rotary motors in aircraft = =0A>Sent: Fri, April 29, 2011 8:24:34 PM=0A>Subject: [FlyRotary] Re: Back-p= late Photos=0A>=0A>=0A>Tracy,=0A>=0A>=A0=A0=A0 I have a couple of=A0questio= ns=A0for you about your RV4 Renesis =0A>engine.................Are you usin= g the stock Renesis ignition sensor=0A>=A0and is it mounted mounted on the = Renesis front cover =0A>mounting=A0??..............When the Renesis trigger= wheel and sensor are in the=0A>=A0stock position what is the engine timed = at (BTDC) before any computer (stock =0A>and/or EC2-3) correction (static t= iming) ??..........=0A>=0A>Thanks,=0A>Kelly Troyer=0A>=0A>Yes, my Renesis h= as the stock crank position sensor in stock location.=0A>=0A>I may not unde= rstand your timing question Kelly but there simply is no =0A>correlation be= tween the crank position sensor timing and any ignition timing. =A0 =0A>The= computer is just getting an arbitrary (but well defined) crank position fr= om =0A>the sensor & trigger wheel.=A0 It can make the timing anything it wa= nted to with =0A>that information.=A0 Without the computer there can be no = such thing as static =0A>ignition timing with a trigger pattern from the RX= -8 setup. =0A>=0A>=0A>Tracy=0A>=0A>=A0=0A>=0A>=0A --0-471615319-1304170462=:71594 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
=0A
Thanks Tracy !!...........In other words "Don't Mes= s With it"..................<:)
=0A
 
=0A
Thanks = again.
 
=0A

Kelly Troyer
"DYKE DE= LTA JD2" (Eventually)

=0A

"13B R= OTARY"_ Engine
"RWS"_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil Manifold=0A

"TURBONETICS"_TO4E50 Turbo

=0A

=0A

=0A
= =0A
=0AFrom: Tracy <rwstracy@gmail.com>
To: Rotary motors in aircraft <flyro= tary@lancaironline.net>
Sent: Sat, April 30, 2011 8:08:58 AM
Subject: [FlyRotary] Re: Timing Question for Tracy

There's never a simple yes or no answer to this stuff.     = The EC2/3 can move the entire timing curve up or down by 10 degrees in 1 de= gree steps.  But, if for instance you retarded the trigger wheel by 10= degrees and made up for it by advancing the EC2/3 timing adjustment by 10 = degrees, the controller would probably be unable to deliver the full range = of ignition advance when at low manifold pressure (same as 'vacuum advance'= in a car).   So, I would recommend that the trigger wheel not be= moved from the stock location.

Tracy

=0A
On Sat, Apr 30, = 2011 at 12:41 AM, Kelly Troyer <= keltro@att.net> wrote:
=0A
=0A
=0A
=0A
=0A
Tracy,
=0A
  &= nbsp; I will try to be more clear............If the stock position of the s= ensor is moved slightly
=0A
in relation to the trigger wheel can t= he EC2-3  compensate or does the trigger wheel
=0A
have to be= repositioned to regain the stock timing relative to TDC ?...............=0A
 
=0A
Thanks,
=0A
 
=0A
&n= bsp;Kelly Troyer
=0A
"DYKE DELTA JD2" (Eventually)
=0A

"13B ROTARY"_ Engine
"RWS= "_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil Manifold

=0A

"TURBONETICS"_T= O4E50 Turbo

=0A

=0A

=0A
=0A
=0AFrom:<= /B> Tracy <rwstracy@gmail.com><= BR>To: Rotary motors in air= craft <flyrotary@lanca= ironline.net>
Sent: Fri, April 29, 2011 8:24:34 PM
S= ubject: [FlyRotary] Re: Back-plate Photos

=0A
= Tracy,
=0A
 
=0A
    I have a couple = of questions for you about your RV4 Renesis engine...............= ..Are you using the stock Renesis ignition sensor
=0A
 and is= it mounted mounted on the Renesis front cover mounting ??............= ..When the Renesis trigger wheel and sensor are in the
=0A
 s= tock position what is the engine timed at (BTDC) before any computer (stock= and/or EC2-3) correction (static timing) ??..........
=0A
 <= /DIV>=0A
Thanks,
=0A
 
Kelly Troyer

Yes, my R= enesis has the stock crank position sensor in stock location.

I may = not understand your timing question Kelly but there simply is no correlatio= n between the crank position sensor timing and any ignition timing.   = The computer is just getting an arbitrary (but well defined) crank position= from the sensor & trigger wheel.  It can make the timing anything= it wanted to with that information.  Without the computer there can b= e no such thing as static ignition timing with a trigger pattern from the R= X-8 setup.

Tracy

 

=0A

=0A
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