X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.3 cv=RZTu9Glv c=1 sm=1 tr=0 a=MFA1YlRTXiFem52YpcrAug==:117 a=Q/ga6ogm2rCWgcvzDGMIiA==:17 a=x7bEGLp0ZPQA:10 a=DDNF8ybvv5wA:10 a=nTHF0DUjJn0A:10 a=6KCspYaHAAAA:8 a=pGLkceISAAAA:8 a=Ia-xEzejAAAA:8 a=on22okXAAAAA:8 a=7g1VtSJxAAAA:8 a=kR-LEQOAHvNH6dJ-m4gA:9 a=QEXdDO2ut3YA:10 a=Qa1je4BO31QA:10 a=gvSQh4r-fQ0A:10 a=zByRXG4MHX-l4_J2MRMA:9 a=xYL-jZy-5Y5usyRd:21 a=_W_S_7VecoQA:10 a=CnniZz1SSAwyvaD4Xt4M:22 a=Urk15JJjZg1Xo0ryW_k8:22 a=NPqpj5bUEVj9vR1HIonK:22 a=grOzbf7U_OpcSX4AJOnl:22 From: "Le Roux Breytenbach breytenbachleroux@gmail.com" Received: from mail-ej1-f49.google.com ([209.85.218.49] verified) by logan.com (CommuniGate Pro SMTP 6.2.14) with ESMTPS id 394160 for flyrotary@lancaironline.net; Sat, 20 Jun 2020 02:02:02 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.218.49; envelope-from=breytenbachleroux@gmail.com Received: by mail-ej1-f49.google.com with SMTP id l12so12586402ejn.10 for ; Fri, 19 Jun 2020 23:02:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=content-transfer-encoding:from:mime-version:subject:message-id:date :to; bh=F++GkWxQ8tO6CWt7oMyzY+bl2HTnUYZuqxDZ2Naltrk=; b=hF3P23XnM/NZRvGtw2NXXCazPMY6xf+h9wnryt5NCtB9xaufMdZI0Q8jmL9SBoPRBo nvmq8DLnfzGk8zmlZJ7LhXBz8nqmDEc2xqVxa1rtOSoAaP3DL+YsNcygUBDSHLoHIc+B OvRlyLU/Op01JovO8G3piPzU4BOCcOXF1rvtp/B+TBU/W/1/2zaCt14kV83sM/pu+PEV MkgTindcHcpSMGEIeCC8Wf43Rcfji7siC+ys80ufFpYUs6Qz6F/NVw6RNBG2pAulWZpU KAK/DJsy41BlA01xs3aT0r/tn/NUzPc1nGTK7oGbyoN9pCXnXPcWiKNL2HYamTuziSkX UF4A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:content-transfer-encoding:from:mime-version :subject:message-id:date:to; bh=F++GkWxQ8tO6CWt7oMyzY+bl2HTnUYZuqxDZ2Naltrk=; b=FkuoXG4VFnG5jWRoKOSJ3lUtvVjc3kn3f1zUYbX5l5x2D0LePtdMuzfjKhN2P5o6n8 8glVCjM3rZkzCyIYi9JSVqp0zBOLAfoYABqNvnWSeYpn3nGBfozk3ecqzXdtiExycfMz cmFBLySZn397XelBLN7XDR+BOWlbIWaDgN4AGHM/UaS70sUi6elU/G3RicAq8wEJbBdP +MT9T5xv9hf6VLwAnGnOhJ6dmTO+r2y+2792brZr5+fILvSZWwHwCxbKmpSKBCo+GczX SNO5/9pLLcagbIGg3gtGB0FznVWr45thNCMxq05FgdMbZogNFL00iNw+HsjPD8yHHt7T FslA== X-Gm-Message-State: AOAM5305XUaVETLfuOQt168v8miW5CUrEDCCq8bzsi3Lin0/xneYtjQf eNTE9wfav5yELNXpyH2qjNKhGW1ZI2U= X-Google-Smtp-Source: ABdhPJycxmjxolFYTNqsjFLGHdcDibSe8vMOdCdN7yw17E9yfLkwKnQED73ZosFX6x3bZ1njDuyvYQ== X-Received: by 2002:a17:906:f98e:: with SMTP id li14mr525480ejb.174.1592632905451; Fri, 19 Jun 2020 23:01:45 -0700 (PDT) Return-Path: Received: from [192.168.1.122] ([160.226.128.22]) by smtp.gmail.com with ESMTPSA id z15sm6374192eju.18.2020.06.19.23.01.44 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 19 Jun 2020 23:01:44 -0700 (PDT) Content-Type: multipart/alternative; boundary=Apple-Mail-9912B944-1EA6-44FE-852B-A6D4AFA42FB7 Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (1.0) Subject: Re: [FlyRotary] Re: Modifying the EC2 Staging point Message-Id: <91C741CE-1602-4EFD-8436-486D7A3ADB07@gmail.com> Date: Sat, 20 Jun 2020 08:01:42 +0200 To: Rotary motors in aircraft X-Mailer: iPhone Mail (17F80) --Apple-Mail-9912B944-1EA6-44FE-852B-A6D4AFA42FB7 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable =EF=BB=BF Steve: =46rom what i have read, you could use this formula to calculate hor= sepower ( or more or less) https://performancedevelopments.com/fuel-flow-calculations-for-horsepower/ HP =3D (GPH) x 5.92 / 0.44 (BSFC) 16,4 (GPH) x 5.92 ( weight of 1 pound of fuel )=20 devide by 0,44 Brake Specific Fuel Consumption BSFC.=20 =3D 220 Hp I could be wrong Sent from my iPhone Le Roux Breytenbach=20 Sent from my iPhone Le Roux Breytenbach=20 >> On 20 Jun 2020, at 04:49, Stephen Izett stephen.izett@gmail.com wrote: > =EF=BB=BFThanks Jeff and all >=20 > Last flight (after playing around with Mode #1 tuning on the ground) the P= rimaries (4 port Red) were saturating at various times, indicated as Steve B= oese reminded me, by the loss of RPM readouts (EM3 & Dynon Skyview) sensed f= rom the Primary Injector line. > Do others with small Primaries have this issue or is it a Tuning issue? > ie. Getting modes # 3,6,2 right will spread the load between the Pri and S= econdaries so the primaries don=E2=80=99t saturate? > I do have another set of the larger (Blue) secondary injectors that could r= eplace the small red Primaries giving us 4 equal injectors, if this was help= ful. > Do injectors have a sweet spot or better spray pattern at a particular ban= d of duty cycle? >=20 > We have an electric inflight adjustable prop which may make a difference f= rom those with experience with FP props. >=20 >> On another note, I rechecked max fuel flow at static ~6800 rpm and 0.92 L= ambda which I think is best power. Fuel Flow peeks at 16.4 Gal/hr. >> It's a Renesis 4 Port with the stock exhaust header and resonator and a m= odified stock intake manifold which is basically shortened from 23.6=E2=80=9D= to 18.1=E2=80=9D.=20 >> I had noted down that Tracy recommended 16=E2=80=9D and Paul L 20=E2=80=9D= for the intake length. >> What kind of hp do you think this might be producing and what are others s= eeing? >>=20 >> How could we determine peak power/rpm? Could we use the airframe as a dyn= o in some way? >> What about at WOT clean air and level, and adjust prop pitch/rpm for maxi= mum airspeed. >> I suppose is we kept the mixture constant we could look for highest fuel f= low. >> I=E2=80=99m trying ti ascertain the best rpm for takeoff. >> At the moment I=E2=80=99m leaving the prop set fine and rpm is peaking at= ~7500 on climb out. >>=20 >> Your expertise and insights would be greatly appreciated. >>=20 >> Steve Izett >>=20 >>=20 >>=20 >>=20 >>=20 >>=20 >>=20 >> On 19 Jun 2020, at 9:37 pm, Jeff Whaley jwhaley@datacast.com wrote: >>=20 >> I don't think you're missing anything Steve - my EC2 is the same : fixed a= t 20" ... >> It was originally 15.5" and could be set anywhere ... but after sent back= to Tracy it is now 20" and cannot be changed. >> Jeff=20 >>=20 >> Hi people. >>=20 >> I did some tuning this morning. >> But I couldn't get the staging point to change. >>=20 >> I reset all modes to default. >> The built in default Stage Point on my EC2 seems to be ~20" >>=20 >> Ran engine at the desired MAP, selected Mode #7 (I was aiming at 15.5") a= nd pressed the Store Button. >> I also tried holding it for a few seconds. >> Staging Point stayed at ~20". >> What am I missing here? >>=20 >> Steve Izett >>=20 >> -- >> Homepage: http://www.flyrotary.com/ >> Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/Lis= t.html >=20 >=20 > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List= .html --Apple-Mail-9912B944-1EA6-44FE-852B-A6D4AFA42FB7 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
=EF=BB=BF= Steve: =46rom what  i have read, you could use this formula to calcula= te horsepower ( or more or less)

https://perfo= rmancedevelopments.com/fuel-flow-calculations-for-horsepower/
HP =3D (GPH) x 5.92 / 0.44 (BSFC)

       16,4 (GPH)  x 5.92 ( weight of 1 pound= of fuel ) 
    &= nbsp;    devide by
&nb= sp;        0,44   Brake Specific Fuel Consumption BSFC. 

<= span style=3D"caret-color: rgb(51, 51, 51); color: rgb(51, 51, 51); font-fam= ily: Arial; font-size: 14px; -webkit-text-size-adjust: auto; background-colo= r: rgb(238, 238, 238);">          =3D  220 Hp<= /span>

I could be wrong

Sent from my iPhone
Le Roux Breytenbach 



Sent from my iPhone
Le Roux Breytenba= ch 
On 20 Jun 2020, at 04:49, Step= hen Izett stephen.izett@gmail.com <flyrotary@lancaironline.net> wrote:=

=EF=BB= =BFThanks Jeff and all

Last flight (a= fter playing around with Mode #1 tuning on the ground) the Primaries (4 port= Red) were saturating at various times, indicated as Steve Boese reminded me= , by the loss of RPM readouts (EM3 & Dynon Skyview) sensed from the Prim= ary Injector line.
Do others with small Primaries have this i= ssue or is it a Tuning issue?
ie. Getting modes # 3,6,2 righ= t will spread the load between the Pri and Secondaries so the primaries don=E2= =80=99t saturate?
I do have another set of the larger (Blue)= secondary injectors that could replace the small red Primaries giving us 4 e= qual injectors, if this was helpful.
Do injectors have a swe= et spot or better spray pattern at a particular band of duty cycle?
We have an electric inflight adjustable prop which m= ay make a difference from those with experience with FP props.

On another note, I rechecked max fuel flow at static ~68= 00 rpm and 0.92 Lambda which I think is best power. Fuel Flow peeks at 16.4 G= al/hr.
It's a Renesis 4 Port with the stock exhaust header a= nd resonator and a modified stock intake manifold which is basically shorten= ed from 23.6=E2=80=9D to 18.1=E2=80=9D.
I had noted down th= at Tracy recommended 16=E2=80=9D and Paul L 20=E2=80=9D  for the intake= length.
What kind of hp do you think this might be producin= g and what are others seeing?

How could we d= etermine peak power/rpm? Could we use the airframe as a dyno in some way?
What about at WOT clean air and level, and adjust prop pitch/r= pm for maximum airspeed.
I suppose is we kept the mixture co= nstant we could look for highest fuel flow.
I=E2=80=99m tryi= ng ti ascertain the best rpm for takeoff.
At the moment I=E2= =80=99m leaving the prop set fine and rpm is peaking at ~7500 on climb out.<= /span>

Your expertise and insights would be greatl= y appreciated.

Steve Izett
=



<= br>

On 19 J= un 2020, at 9:37 pm, Jeff Whaley jwhaley@datacast.com <flyrotary@lancairo= nline.net> wrote:
=
I don't think you're= missing anything Steve - my EC2 is the same : fixed at 20" ...
It was originally 15.5" and could= be set anywhere ... but after sent back to Tracy it is now 20" and cannot b= e changed.
Jeff

<= blockquote type=3D"cite">Hi people.

I did some tuning this morning.
But I couldn't get the staging point to change.

I reset all modes to default.
The built in default Stage Point on my EC2 seems= to be ~20"
Ran engine at the desired MAP= , selected Mode #7  (I was aiming at 15.5") and pressed the Store Butto= n.
I also tried holdi= ng it for a few seconds.
Staging Point stayed at ~20".
What am I missing here?

Stev= e Izett

--
Homepage:  http://www.flyrotary.com/
Archive and UnSub:   = ;http://mail.lancaironline.net:81/lists/flyrotary/List.html


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