X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Fri, 08 Jun 2007 12:28:17 -0400 Message-ID: X-Original-Return-Path: Received: from an-out-0708.google.com ([209.85.132.245] verified) by logan.com (CommuniGate Pro SMTP 5.1.9) with ESMTP id 2091432 for lml@lancaironline.net; Fri, 08 Jun 2007 11:02:56 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.132.245; envelope-from=msteitle@gmail.com Received: by an-out-0708.google.com with SMTP id b2so168722ana for ; Fri, 08 Jun 2007 08:02:16 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:references; b=ZNBYHCeaDb31t05UEjMYjewBxM1x6eQnMNgRZ0Y5LzPjJ9q5jJ5VWiu+MF7SiEEXOPUwYgynojY2q9MC0USIm8QoAJFZqL0b6j7qwv7JbFqTnC8D1/ZV/aySGx3JCZVHH46HJ/3iZJmKOGGkTSUlKUcTuG0tA2nf5j9fJ+1HfiI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:references; b=Weey+Cw40vZaa+WUkWEw35qyiLM7SnDP/ui4TwqCl/9bA3iktyy1ECCmzKkHILangztzl0X5vAdqW600G1j8VZDsKWad+/1aPjyhPn+Ksi8A3BvpWw4zrMtJt7UCSgtiBcgDjKst4C5mt6NHf90lqiPqfnsAM+hnFt2dWu0NNp8= Received: by 10.100.200.12 with SMTP id x12mr1811711anf.1181314936356; Fri, 08 Jun 2007 08:02:16 -0700 (PDT) Received: by 10.100.38.20 with HTTP; Fri, 8 Jun 2007 08:02:16 -0700 (PDT) X-Original-Message-ID: <5cf132c0706080802t4672dd79u649a3aaecaa6dd41@mail.gmail.com> X-Original-Date: Fri, 8 Jun 2007 10:02:16 -0500 From: "Mark Steitle" X-Original-To: "Lancair Mailing List" Subject: Re: [LML] Inconel turbos: (was What's better than a Continental IO-550 fuel system?) In-Reply-To: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_75128_32208364.1181314936323" References: ------=_Part_75128_32208364.1181314936323 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline Colyn, Sorry, I don't have any sources for turbo information. I'll keep my ear to the ground though. Mark (I'm a N/A type guy) On 6/8/07, Colyn Case on earthlink wrote: > > *Mark S. said, The two big issues are heat and overspeed. Inconnel turbo > blades are mandatory.* > ** > Where can I find out more? > > b.t.w. - I did check with Garrett about my turbos. They said a) they are > inconel and b) they recommend running not higher than 1650. This surprised > me so I asked if that was a hard limit. They said "We have found they last > a lot longer at 1650" so I remain a little unclear if that is really about > temps are about rpm. Since I have over-size compressors I suspect my > turbo rpms are lower than stock. > > ----- Original Message ----- > *From:* Mark Steitle > *To:* lml@lancaironline.net > *Sent:* Friday, June 08, 2007 4:38 AM > *Subject:* [LML] Re: What's better than a Continental IO-550 fuel system? > > > Colyn, > > Yes, there have been a few. Dave Leonard and Tom Parkes names comes to > mind. The rotary is a very good match for a turbo, but the problem is > finding a turbo that can stand up to the rotary. The few that have tried it > have spent a good chunk of change trying to find a combination that will > handle the severe beating that the rotary dishes out. (Higher exhaust temps > and no exhaust valves to soften the exhaust pulses.) The good news is that > a failed turbo still allows the engine to continue running, albeit at > reduced power. The "turbo guys" are getting closer on finding the right > combination for airborn rotary. > > The two big issues are heat and overspeed. Inconnel turbo blades are > mandatory. > > I initially was going the turbo route, but eventually decided on the > simpler route and go n/a. I think it was a good decision. My engine is a > turbo version, so if I every decide that I want to turbo-charge, then it > will be a bit simpler undertaking. > > Mark > > > On 6/7/07, Colyn Case on earthlink wrote: > > > > Mark S., > > I found your post informative and interesting. > > Has anyone attempted a turbo installation of that engine? > > > > Colyn > > > > > > ------=_Part_75128_32208364.1181314936323 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline
Colyn,
Sorry, I don't have any sources for turbo information.  I'll keep my ear to the ground though. 
 
Mark
(I'm a N/A type guy)

 
On 6/8/07, Colyn Case on earthlink <colyncase@earthlink.net> wrote:
Mark S. said, The two big issues are heat and overspeed.  Inconnel turbo blades are mandatory.
 
Where can I find out more?
 
b.t.w. - I did check with Garrett about my turbos.  They said a) they are inconel and b) they recommend running not higher than 1650.   This surprised me so I asked if that was a hard limit.  They said "We have found they last a lot longer at 1650"  so I remain a little unclear if that is really about temps are about rpm.    Since I have over-size compressors I suspect my turbo rpms are lower than stock.
----- Original Message -----
Sent: Friday, June 08, 2007 4:38 AM
Subject: [LML] Re: What's better than a Continental IO-550 fuel system?

 
Colyn,
 
Yes, there have been a few.  Dave Leonard and Tom Parkes names comes to mind.  The rotary is a very good match for a turbo, but the problem is finding a turbo that can stand up to the rotary.  The few that have tried it have spent a good chunk of change trying to find a combination that will handle the severe beating that the rotary dishes out.  (Higher exhaust temps and no exhaust valves to soften the exhaust pulses.)  The good news is that a failed turbo still allows the engine to continue running, albeit at reduced power.  The "turbo guys" are getting closer on finding the right combination for airborn rotary. 
 
The two big issues are heat and overspeed.  Inconnel turbo blades are mandatory.
 
I initially was going the turbo route, but eventually decided on the simpler route and go n/a.  I think it was a good decision.  My engine is a turbo version, so if I every decide that I want to turbo-charge, then it will be a bit simpler undertaking.
 
Mark

 
On 6/7/07, Colyn Case on earthlink <colyncase@earthlink.net > wrote:
Mark S.,
    I found your post informative and interesting.
    Has anyone attempted a turbo installation of that engine?
 
Colyn
 


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