X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao12.cox.net ([68.230.241.27] verified) by logan.com (CommuniGate Pro SMTP 5.1c.2) with ESMTP id 1320575 for flyrotary@lancaironline.net; Fri, 28 Jul 2006 12:39:54 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.27; envelope-from=steve@stevet.net Received: from [192.168.2.203] (really [68.6.58.190]) by fed1rmmtao12.cox.net (InterMail vM.6.01.06.01 201-2131-130-101-20060113) with ESMTP id <20060728163908.IFHG25430.fed1rmmtao12.cox.net@[192.168.2.203]> for ; Fri, 28 Jul 2006 12:39:08 -0400 Mime-Version: 1.0 (Apple Message framework v752.2) In-Reply-To: References: Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: <82D79BE6-38C8-499F-A027-5A2C53CAEC26@stevet.net> Content-Transfer-Encoding: 7bit From: Steve Thomas Subject: Subject Lines (was "Test") Date: Fri, 28 Jul 2006 09:39:08 -0700 To: "Rotary motors in aircraft" X-Mailer: Apple Mail (2.752.2) Would you guys please change the subject line of the message when the topic changes substantially? I utilize the subject line to determine if a complete read is required. The subject "Test" came from someone testing their e-mail account and now encompasses turbo chargers, exhaust, and carburation. Best Regards, Steve Thomas ________________________________________________________________________ On Jul 28, 2006, at 9:27 AM, Ed Anderson wrote: > Atomization was indeed a benefit when using carburetors with "suck > through" turbo systems. The spinning compressor wheel reportedly > did give some measurable benefits in mileage (when not under boost) > due to better atomization of fuel. When I turbo charged two Honda > Civics back in 1976-78, I could tell a small increase in mileage. > > However, in our installations, with fuel injectors down stream of > the spinning blades, I personally doubt there is any atomization > benefit since all the compressor blades are churning - is air. > > Ed > Ed Anderson > Rv-6A N494BW Rotary Powered > Matthews, NC > eanderson@carolina.rr.com > http://members.cox.net/rogersda/rotary/configs.htm#N494BW > > ----- Original Message ----- From: "Steve Brooks" > > To: "Rotary motors in aircraft" > Sent: Friday, July 28, 2006 12:18 PM > Subject: [FlyRotary] Re: Test > > >> Ed, >> The only other comment I could make in favor of the turbo, is that >> it's >> suppose to provide increased fuel economy, even at low boost >> levels by >> improving the atomization of the fuel charge. >> >> I'm not sure about how true this is, but that is what I read >> somewhere along >> the line. >> >> I've had my T04 for about a year and a half now, but decided not >> to replace >> it until I got it moved. For one, the stock turbo hasn't given me >> any >> trouble, and it will require a fair amount of work to get it >> changed over. >> My turbo is the same identical turbo that Paul and Lou are >> running. It's a >> Garrett .96 A/r with an s-trim compressor. >> >> I'd like to have gone higher than the .96, but the exhaust side >> turbine gets >> really large if you go any bigger. Paul has had good luck so far >> with their >> turbo. >> >> I'm aware of the oil temperature problem. I had told him early on >> about my >> concerns when I first saw their set up. I told him about the >> problems that >> I had, and what it took to resolve it. They are now increasing >> the air flow >> to the cooler, and may go to 2 oil coolers depending on how their >> next test >> go. I'm sure hat they'll get it worked out. >> I rode in their plane on a fast taxi, and it is amazing how much >> power it >> has. As I recalled it dyno'd at 580 HP at 10lbs of boost. Their >> engine >> sounds like it is revving 10,000 RPM's when it throttles up, even >> though it >> is only 4-5 K. I guess that I'm used to the way mine sounds, and >> they have >> that additional rotor adding to the exhaust note. >> >> I can't wait to hear it fly. It should be interesting to say the >> least. >> >> Steve >> >> -----Original Message----- >> From: Rotary motors in aircraft >> [mailto:flyrotary@lancaironline.net]On >> Behalf Of Ed Anderson >> Sent: Friday, July 28, 2006 10:47 AM >> To: Rotary motors in aircraft >> Subject: [FlyRotary] Re: Test >> >> >> Yep! I'm sitting here monitoring some remodeling contractors >> converting our >> garage to the wife's desires. But, tomorrow, I get to raise my >> hangar door >> frame!! Then I can put on the sheets and start configuring the >> hydraulic >> system that opens the doorl >> >> I'm afraid I agree with you Steve. The stock Mazda turbo simply >> was not >> designed for the operating stresses we are able to put on it. I >> believe if >> you use modest boost only for take off (short term) and not for >> cruise speed >> then it may last a decent amount of time, but that sort of defeats >> the idea >> of the turbo providing at least sea level NA type power for high >> altitude >> high speed cruise. >> >> I have two turbos sitting on my work bench - I've toyed with the >> idea on and >> off for years, but just couldn't convince myself that I needed one >> since I >> tend to cruise at lower airspeeds to keep the fuel burn and $$ >> down. If I >> needed some extra boost just for takeoff, I'd probably just go >> NO2. But, if >> I were to do a turbo, it would not be with the stock Mazda turbo >> but would >> use something like the TO4. >> >> Yes, I tend not to fly at all in the July August time frame - just >> too hot >> for me to enjoy. Of coursed, I could get up before the break of >> dawn and >> find some cooler air. But, I tend to do my tinkering during those >> months >> and fly starting September. >> >> Paul and Lou are working out some oil cooling issues before >> jumping into >> their test program in earnest. >> >> Ed >> ----- Original Message ----- >> From: "Steve Brooks" >> To: "Rotary motors in aircraft" >> Sent: Friday, July 28, 2006 10:36 AM >> Subject: [FlyRotary] Re: Test >> >> >>> Hi Ed, >>> Things are kind of quiet with Oshkosh going on. I have been >>> following the >>> thread on the exhaust issues with the mufflers. >>> >>> I still haven't decided whether to keep the turbo or not. I >>> haven't had >>> any >>> trouble with mine, but I do believe that it is just a matter of >>> time. I >>> also am very careful about how hard I push it. >>> >>> I have all of the parts to switch to a T04 turbo, except for the >>> exhaust >>> pipe and heat shield. I think that I'd like to try it without >>> the turbo >>> first, just to see how much power I have, and how much difference >>> it makes >>> in the temps. The 30+ lbs savings in weight would also be a >>> plus. I want >>> to see what kind of result that Buly gets running without a muffler. >>> Seems >>> like it would be pretty loud, but I may be wrong. >>> >>> Whatever I do, I'll probably do after I get the plane moved up to >>> NC. I >>> have the hours flown off. I just need to fly it up here. August >>> doesn't >>> provide the best flying weather though, so I'll probably wait until >>> September to make the move. >>> >>> Steve Brooks >>> >>> -----Original Message----- >>> From: Rotary motors in aircraft >>> [mailto:flyrotary@lancaironline.net]On >>> Behalf Of Ed Anderson >>> Sent: Friday, July 28, 2006 10:03 AM >>> To: Rotary motors in aircraft >>> Subject: [FlyRotary] Re: Test >>> >>> >>> It works >>> >>> Ed >>> >>> ----- Original Message ----- >>> From: "Steve Brooks" >>> To: "Rotary motors in aircraft" >>> Sent: Friday, July 28, 2006 9:58 AM >>> Subject: [FlyRotary] Test >>> >>> >>>> I just changed my email address for Fly Rotary over to my Gmail >>>> account, >>>> and >>>> wanted to make sure that it is working. >>>> >>>> >>>> -- >>>> Homepage: http://www.flyrotary.com/ >>>> Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ >>>> >>> >>> >>> >>> -- >>> Homepage: http://www.flyrotary.com/ >>> Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ >>> >>> >>> -- >>> Homepage: http://www.flyrotary.com/ >>> Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ >>> >> >> >> >> -- >> Homepage: http://www.flyrotary.com/ >> Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ >> >> >> -- >> Homepage: http://www.flyrotary.com/ >> Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ > > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ >