X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from nz-out-0506.google.com ([64.233.162.226] verified) by logan.com (CommuniGate Pro SMTP 5.2c1) with ESMTP id 2455420 for flyrotary@lancaironline.net; Sun, 04 Nov 2007 16:58:34 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.233.162.226; envelope-from=rwstracy@gmail.com Received: by nz-out-0506.google.com with SMTP id n29so853599nzf for ; Sun, 04 Nov 2007 13:57:57 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:sender:to:subject:in-reply-to:mime-version:content-type:references:x-google-sender-auth; bh=FBrRlKZ17DxrbHduST76dmHrN9N+nQCZB2XM/oDqbUE=; b=rTbn10ovo26XLaNU+g3OGrA4+KzC5R8N25SEPdG75bEWJSTAiOHXc2MdICHe0Vj5s6XC5EkMXdReR1ZqJtgPoqcqpUkCM8pf0XrdmnMyQart/bBoNiIciXSjqj8o3euQfabi2SeZBfGNUW62lOFiqZ/LiJOgOv+i/RIb+mSJOzM= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:sender:to:subject:in-reply-to:mime-version:content-type:references:x-google-sender-auth; b=hBhgkN8nxdgOap0JOV08BqZVmB79qg3m7njsP8572qP56rDJEXz2SDa00iV2m8j7hma9nnH62uXKMNKj19cneHPh/JBIt8dYYRzFsdANuLxBsTcvrenmaMTuLjQb+Hlw+DSh0LPe6fDeTxUoCScXIY9wPtOzjb8gmW/tVDLE2rI= Received: by 10.142.48.14 with SMTP id v14mr863887wfv.1194213476967; Sun, 04 Nov 2007 13:57:56 -0800 (PST) Received: by 10.143.6.18 with HTTP; Sun, 4 Nov 2007 13:57:56 -0800 (PST) Message-ID: <1b4b137c0711041357k43579dd9s9b2bf47017ade5eb@mail.gmail.com> Date: Sun, 4 Nov 2007 16:57:56 -0500 From: "Tracy Crook" Sender: rwstracy@gmail.com To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Re: Fuel delivery at WOT In-Reply-To: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_7567_5791290.1194213476936" References: X-Google-Sender-Auth: 77eff4b5fee66943 ------=_Part_7567_5791290.1194213476936 Content-Type: text/plain; charset=WINDOWS-1252 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline 238 Is kind of high for Mode 3 but you obviously did need to increase it. I'd try lowering it a bit (210 or so?) and then start tuning in Mode 1 or 9. all the way from idle to WOT in 1/2" steps of MAP. If you have not had the snubber update yet, do that first or you will have to start over again after having that done. Tracy On 10/24/07, Bill Bradburry wrote: > > I had not previously made any adjustments to Mode 3 or 1. > > Today I tried turning up the manual mixture to max and was able to get > 4800 rpm. I also checked the Mode 3 at 22" and found that it needed to b= e > increased. I increased it 10-12 punches (a lot) before it would center t= he > monitor. I was then able to get to 4800 with the mixture at center and 5= 100 > with it all the way rich. > > Now I have to turn the mixture almost all the way lean to center it at lo= w > rpms. The injector flow setting is now 238. ??? > > I think I am on the right track, but still need some work. I will bring > the MAP data when I come Saturday. > > > > Thanks, > > Bill B > > > ------------------------------ > > *From:* Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] *O= n > Behalf Of *Tracy Crook > *Sent:* Wednesday, October 24, 2007 12:25 AM > *To:* Rotary motors in aircraft > *Subject:* [FlyRotary] Re: Fuel delivery at WOT > > > > Bill, > > Prior to running autotune you should manually tune to get mixture in the > ball park. > > > > To give any more meaningful feedback I would need to know if you have don= e > any adjustment to Mode 3 and/or Mode 1? Could you get the same result (a= s > cold start switch) by turning up the manual mixture control? What was yo= ur > mixture monitor telling you during all these tests? Are you out of range= on > the MAP correction table (already at max?) Did you set Mode 3 at 22 - 24= " > MAP prior to making other adjustments as suggested in the instructions? > > > > But Ed's advice was good. The fact that you could get enough fuel flow b= y > doing anything at the EC2 tells you that the fuel system is capable of > delivering enough fuel (this assumes the fuel pressure was OK which your > data indicates is the case). > > > > The snubber and diagnostic modes are not related. The diagnostics went i= n > some time before the snubber change. Don't know which version you have. > > > Tracy Crook > > > On 10/23/07, *Bill Bradburry* wrote: > > I have been concerned that I am not getting the static rpm that others ar= e > getting with similar props. I have the stock Renesis with the Performanc= e > Props 76 X 88. I seem to be limited to about 4200 rpm. I hit 4800 once = the > other day, but did not know what might have caused the change. I just > finished the install of the pressure overflow bottle per Lynn's msg of a > while back and was running the engine up to try and eliminate any air tha= t > might still be in the engine. I noticed that when the rpm reached 4200 o= r > so, I still had about an inch of throttle left. After pondering that for= a > couple of minutes, I pushed the throttle to the wall, the engine started = to > run rough, and I reached over and flipped the cold start switch on=85. > > > > Mein Cod!!! > > > > It immediately hit 5350! > > > > Apparently I am not getting enough fuel flow to support high rpm. I have > not done the self tuning at high rpm yet, but I would not expect that the > fuel flow would be so low as to limit the rpm. > > > > What suggestions do you have? My ability to self tune has been limited > due to cooling issues=85especially at WOT! > > > > Lynn , it is too early to be sure yet, but your idea for the pressure > bottle looks like it is going to help the cooling a lot. It may not be t= he > complete solution, but it seems to be a step in the right direction. > Thanks! > > > > > > Bill B > > > ------=_Part_7567_5791290.1194213476936 Content-Type: text/html; charset=WINDOWS-1252 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline
238 Is kind of high for Mode 3 but you obviously did need to increase = it.  I'd try lowering it a bit (210 or so?)  and then start t= uning in Mode 1 or 9.  all the way from idle to WOT in 1/2" steps= of MAP.
 
If you have not had the snubber update yet, do that first or you will = have to start over again after having that done.
 
Tracy

 
On 10/24/07, Bill Bradburry <bbradbu= rry@bellsouth.net> wrote:

I had not previously made any adjus= tments to Mode 3 or 1. 

Today I tried turning up the manual= mixture to max and was able to get 4800 rpm.  I also checked the Mode= 3 at 22" and found that it needed to be increased.  I increased it 10= -12 punches (a lot) before it would center the monitor.  I was then ab= le to get to 4800 with the mixture at center and 5100 with it all the way r= ich.

Now I have to turn the mixture almo= st all the way lean to center it at low rpms.  The injector flow setti= ng is now 238.  ???

I think I am on the right track, bu= t still need some work.  I will bring the MAP data when I come Saturda= y.

 

Thanks,

Bill B

 

On 10/23/07, Bill Bradburry < bbradburry@bellsouth.net> wrote:

I have been concerned that I am not= getting the static rpm that others are getting with similar props.  I= have the stock Renesis with the Performance Props 76 X 88.  I seem to= be limited to about 4200 rpm.  I hit 4800 once the other day, but did= not know what might have caused the change.  I just finished the inst= all of the pressure overflow bottle per Lynn's msg of a while back and = was running the engine up to try and eliminate any air that might still be = in the engine.  I noticed that when the rpm reached 4200 or so, I stil= l had about an inch of throttle left.  After pondering that for a coup= le of minutes, I pushed the throttle to the wall, the engine started to run= rough, and I reached over and flipped the cold start switch on=85.=20

 

Mein Cod!!!

 

It immediately hit 5350!

 

Apparently I am not getting enough = fuel flow to support high rpm.  I have not done the self tuning at hig= h rpm yet, but I would not expect that the fuel flow would be so low as to = limit the rpm. =20

 

What suggestions do you have? = My ability to self tune has been limited due to cooling issues=85especiall= y at WOT!=20

 

Lynn , it is too early to be sure yet, but your idea for the pressure bottle lo= oks like it is going to help the cooling a lot.  It may not be the com= plete solution, but it seems to be a step in the right direction.  Tha= nks!

 

 

Bill B