X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.122] verified) by logan.com (CommuniGate Pro SMTP 5.2.3) with ESMTP id 2945424 for flyrotary@lancaironline.net; Fri, 30 May 2008 07:44:47 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.122; envelope-from=eanderson@carolina.rr.com Received: from edward2 ([75.191.186.236]) by cdptpa-omta03.mail.rr.com with SMTP id <20080530114408.BMKR5514.cdptpa-omta03.mail.rr.com@edward2> for ; Fri, 30 May 2008 11:44:08 +0000 Message-ID: <000301c8c24a$7b874450$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: [FlyRotary]Turbochargers Date: Fri, 30 May 2008 07:44:13 -0400 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 Sounds like a good match, Greg - a larger A/R of 1.06 is best for producing aircraft power. Smaller A/R's rev cause the turbine to rev faster, but tops out quickly and then limits exhaust gas flow through the turbocharger - Ok for that "sports car" feel but not what you want for long duration boost in an aircraft. Garret has lots of experience with aircraft turbocharging unlike some of the other turbo manufactures, so their advice should be on the money. Let's see those photos! Ed ----- Original Message ----- From: "Greg Ward" To: "Rotary motors in aircraft" Sent: Thursday, May 29, 2008 11:20 PM Subject: [FlyRotary] Re: [FlyRotary]Turbochargers > Gentlemen (and Ladies); > Just got in. Spent about 3 hours with one of the top rated turbo outfits > in the State this afternoon, and got a Garrett GT4088 Journal Bearing, > 1.06 A/R, (GT40-SPCL-4088-NBB), along with a Tial 44mm V44 wastegate. > Also an Edelbrok 75mm throttle body, and all of the Stainless, flanges, > etc. Met with the Garrett rep that was in-house at the time, and he said > that 15lb. of boost, with a boost controller would be all that I needed, > and it would be loafing at that......(:-) This outfit has dynoed the 20B > on about 8 installations, and they said that I would have a guaranteed > 400-450 hp at take-off, and with the prop that Craig Cato is building for > me, I think I've got a rocket ship here......++(:-) Damn thing is heavy, > and with 3" stainless exhaust, I'll be moving some batteries I think. Rep > says that the noise level in the cars they have set up is LOW, won't need > a muffler. Think I'll run this up on the Rotary site too, getting excited, > pictures are coming in the next week or so. > Thanks; > Greg > > >>> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] >>> On Behalf Of Tracy Crook >>> Sent: Thursday, May 29, 2008 9:40 AM >>> To: Rotary motors in aircraft >>> Subject: [FlyRotary] Re: [FlyRotary]Turbochargers >>> >>> I get 3 - 5 emails or calls every day from builders surprised that >>> things don't seem to be fitting together. There seems to be some kind >>> of expectation that the whole world is standardized around this one of a >> kind >>> airplane they are building. Don't *expect* anything to fit unless you >> have >>> verified it or made it fit yourself. >>> >>> >>> >>> OK, enough kvetching from me. >>> >>> >>> >>> It doesn't make sense to throw away those $250 injectors (Mazda price) >>> and >>> buy something to fit those little chunks of aluminum you bought. Put >>> the >>> injector bungs in a lathe and turn them out to fit. Or start with a >>> fresh chunk and make from scratch. >>> >>> I doubt you could replace those rather unique 20B primary injectors no >>> matter how badly you wanted to. Again, the world is not standardized >>> around that very rare orphaned car engine you are putting in the plane. >>> >>> >>> >>> Tracy >>> >>> On Thu, May 29, 2008 at 3:18 AM, Greg Ward >> wrote: >>> >>> Hey Tracy; >>> >>> The injector bosses from SDS arrived today, and the Mazda injectors >>> don't fit (big surprise). What do I use instead, and what size? >>> Should I also replace the ones in the block, or go with them for a >>> while? Will this make any difference in the ECU mapping? >>> >>> Thanks; >>> >>> Greg >>> >>> ----- Original Message ----- >>> >>> From: Tracy Crook >>> >>> To: Rotary motors in aircraft >>> >>> Sent: Wednesday, May 28, 2008 10:54 PM >>> >>> Subject: [FlyRotary] Re: [FlyRotary]Turbochargers >>> >>> >>> >>> AFIK, Tom Parks is the only other 20B turbo flying (very few hours). >>> I don't know the specs. or even the make but I think it was a >>> Turbonetics. >>> >>> >>> >>> Ain't it fun being a pioneer? :>) >>> >>> >>> >>> Tracy (admiring my painted -8 fuse) >>> >>> On Wed, May 28, 2008 at 1:40 PM, Greg Ward >> wrote: >>> >>> I need to know what turbos you guys have had the best experience with >>> on 20B's. I have to go buy one quickly as my welder guy is moving >>> faster than I thought. The suppliers are only guessing. I plan on >>> using a manual wastegate, and a 90 mm throttle body. HELP!! >>> Greg Ward >>> Lancair 20B in accelerated progress >>> >>> -- >>> Homepage: http://www.flyrotary.com/ >>> Archive and UnSub: >>> http://mail.lancaironline.net:81/lists/flyrotary/List.html >>> >>> >>> >>> >>> >>> >> >> >> -- >> N93BD - Rotary Powered BD-4 - http://www.bob-white.com >> 3.8 Hours Total Time and holding >> Cables for your rotary installation - http://roblinstores.com/cables/ >> >> -- >> Homepage: http://www.flyrotary.com/ >> Archive and UnSub: >> http://mail.lancaironline.net:81/lists/flyrotary/List.html >> >> >> -- >> Homepage: http://www.flyrotary.com/ >> Archive and UnSub: >> http://mail.lancaironline.net:81/lists/flyrotary/List.html >> > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html