X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 2 [X] Return-Path: Received: from ms-smtp-01.southeast.rr.com ([24.25.9.100] verified) by logan.com (CommuniGate Pro SMTP 5.1.7) with ESMTP id 1911062 for flyrotary@lancaironline.net; Fri, 09 Mar 2007 07:15:58 -0500 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.100; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-103-061.carolina.res.rr.com [24.74.103.61]) by ms-smtp-01.southeast.rr.com (8.13.6/8.13.6) with SMTP id l29CDrIL019153 for ; Fri, 9 Mar 2007 07:13:53 -0500 (EST) Message-ID: <001801c76244$68437ce0$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: The truth??? / Injector flow rate mystery solved Date: Fri, 9 Mar 2007 07:13:54 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0015_01C7621A.7F1C6EB0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3028 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0015_01C7621A.7F1C6EB0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MessageI certainly don't know, Rusty. Like I said the only thing that = Tracy and I could conclude was that Mazda was under-rating their = injectors - I wondered whether it might have something to do with the = way an engine is taxed in Japan. In any case, Tracy is clearly ignoring our pleas for more information - = poor guy is undoubtedly working furiously getting orders completed = before Sun & Fun. But, he really shouldn't tease like that {:>) Yes, I understand what you mean about measured flow rates - I suspect = there is something subtle about this matter. Perhaps the current = profile used to open the injectors plays some role in this as Tracy = indicated he was working on a Fix. Perhaps a two stage or progressive = flow rate profile - opens and provides normal flow for typical = automobile usage but, when wide open (like ours are at cruise) perhaps = the flow rate is more. Who knows - Tracy Crook that's who. Ed ----- Original Message -----=20 From: Russell Duffy=20 To: Rotary motors in aircraft=20 Sent: Friday, March 09, 2007 12:19 AM Subject: [FlyRotary] Re: The truth??? / Injector flow rate mystery = solved Tracy and I have been discussing this injector flow rate anomaly for = years - =20 For some reason, I was certain that the Mazda injectors flowed more = than they were rated for, but after sifting through some old logs, = that's not true for all Mazda injectors. I sent 4 slightly used 550's = to RC Engineering, and they tested them at 547, 549, 551, and 551. If = that ain't 550, I don't know what is :-) =20 I guess I'm baffled now. Does Mazda operate them at 5 volts or = something, rather than 12V? That would slow down the response time. =20 Hey the HKS is a good little engine in my opinion - not as good as a = light weight rotary (which we don't have yet - Richard! get a move on = {:>)), but it'll get you flying again.=20 Thanks for the comments. It can't hurt much to try it, because I've = already got people who want to buy it if it doesn't work out. Still, = it's as much trouble to install as the rotary, so it really comes down = to a weight issue, and perhaps whether I'll ever get my redrive from = Autoflight... =20 Rusty ------=_NextPart_000_0015_01C7621A.7F1C6EB0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
I certainly don't know, Rusty.  = Like I said=20 the only thing that Tracy and I could conclude was that Mazda was = under-rating=20 their  injectors - I wondered whether it might have something to do = with=20 the way an engine is taxed in Japan.
 
In any case, Tracy is clearly ignoring = our pleas=20 for more information - poor guy is undoubtedly working furiously getting = orders=20 completed before Sun & Fun.  But, he really shouldn't tease = like that=20 {:>)
 
Yes, I understand what you mean about = measured flow=20 rates - I suspect there is something subtle about this matter.  = Perhaps the=20 current profile used to open the injectors plays some role in this as = Tracy=20 indicated he was working on a Fix.  Perhaps a two stage or = progressive flow=20 rate profile - opens and provides normal flow for typical automobile = usage but,=20 when wide open (like ours are at cruise) perhaps the flow rate is = more. =20 Who knows - Tracy Crook that's who.
 
Ed
----- Original Message -----
From:=20 Russell=20 Duffy
Sent: Friday, March 09, 2007 = 12:19=20 AM
Subject: [FlyRotary] Re: The = truth??? /=20 Injector flow rate mystery solved

Tracy and I have been = discussing this=20 injector flow rate anomaly for years -  
 
For some reason, I was certain that the = Mazda=20 injectors flowed more than they were rated for, but after sifting = through some=20 old logs, that's not true for all Mazda injectors.   I sent = 4=20 slightly used 550's to RC Engineering, and they tested them at = 547, 549,=20 551, and 551.  If that ain't 550, I don't know what is=20 :-)  
 
I guess I'm baffled now.  Does Mazda = operate=20 them at 5 volts or something, rather than 12V?  That would slow = down the=20 response time.   
 
 
Hey the HKS is a good little = engine in my=20 opinion - not as good as a light weight rotary (which we don't have = yet -=20 Richard! get a move on {:>)), but it'll get you  flying = again. 
 
Thanks for the comments.  It can't hurt much = to try=20 it, because I've already got people who want to buy it if it doesn't = work=20 out.  Still, it's as much trouble to install as the rotary, so it = really=20 comes down to a weight issue, and perhaps whether I'll ever get my = redrive=20 from Autoflight...  
 
Rusty
 
= ------=_NextPart_000_0015_01C7621A.7F1C6EB0--