X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-ww0-f50.google.com ([74.125.82.50] verified) by logan.com (CommuniGate Pro SMTP 5.3.9) with ESMTP id 4455288 for flyrotary@lancaironline.net; Fri, 03 Sep 2010 22:13:26 -0400 Received-SPF: pass receiver=logan.com; client-ip=74.125.82.50; envelope-from=rwstracy@gmail.com Received: by wwb18 with SMTP id 18so92990wwb.7 for ; Fri, 03 Sep 2010 19:12:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:sender:received :in-reply-to:references:date:x-google-sender-auth:message-id:subject :from:to:content-type; bh=jks3o6WpGJqjY26y+1X0j2mjWy22Fe7joocU3w5s49E=; b=p/woNWm70FOxPyp5CGB+gg/UoKI+k8UP/OjRkhKY1Mx0a/+BLGYFKedisPZNzx9FC4 Y8b3LdwyA6y4JYJl5FGWATT1i785kO6KoC56hJunLqEJNqvkP7t0ivrKvj+htCqaor3d J5RYMhmROHa/rjTySi5vJ64V0tuzHoIt3nK8E= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:content-type; b=jm6mm2dZ+WUgpiF4+5qyHLZtKwLQdAnEdkHpT3R3IrCkmkxUcEzAQ2Tc3Edg+gRhgz uUgb8ylxEmCoSi9smUVHkTc+Q0oIA7FPpkb0f3ICJJvH1CekBE+f/0IsSSHBczYB6dz5 Z5NapWVabIyBOzXqt8xaf6nGAgnep86TPmQmA= MIME-Version: 1.0 Received: by 10.216.48.196 with SMTP id v46mr975543web.28.1283566371471; Fri, 03 Sep 2010 19:12:51 -0700 (PDT) Sender: rwstracy@gmail.com Received: by 10.216.47.73 with HTTP; Fri, 3 Sep 2010 19:12:51 -0700 (PDT) In-Reply-To: References: Date: Fri, 3 Sep 2010 22:12:51 -0400 X-Google-Sender-Auth: ZEheaKU4tHI_Q4KTfJNArnhXqKQ Message-ID: Subject: Re: [FlyRotary] Re: RV8 20B From: Tracy To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=001485f6ce1e9e0298048f65950f --001485f6ce1e9e0298048f65950f Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Yes, the size increase was fairly recent. If I were doing it over again I'= d make both inlets 6 - 6.25 " in diameter and I would pinch the rear end of the Rad wedge diffuser even tighter. Tracy On Fri, Sep 3, 2010 at 8:39 PM, wrote: > Tracy > > Have you made any significant mods to the inlet duct sinse posting the > photos on your web site some years back, as in when you enlarged to inlet= ? > > I=92ll be on to building the ducts soon. If you were to make any mods wha= t > would they be, deep wisdom re diffuser design? > > Thanks > > Steve Izett > > > On 3/09/10 8:18 PM, "Tracy" wrote: > > Hi Steve, > It's been so hot here that the cooling of the pilot has been my main > problem. I only have about 36 hours on the -8 but it is cooling OK in an= y > weather I can tolerate. > > I posted my cooling developments here on fly rotary so they should be in > the archives. There is also a summary on my website (RV-8 page). Also > covered in issue 100 of Contact! magazine. Last change was to inlet size= s > which I had made a bit small. Looks like 6" diameter for water and 5.5" > Dia. for oil would be about right for my installation. They are slightly > smaller right now. I played with outlet changes till I was tired of > fiberglass and never made much progress. Inlets were the key on mine but > this is not always true. It depends on a LOT of variables. Outlet is n= ow > standard RV-8 dimensions. > > Rad is a 12 X 18 X 2.625 core Griffin, Oil cooler is 10.5 X 11 x 2 > generic 30 row cooler. > > Only time cooling is limiting is during full power climb in 92+ temps. I > plan to install a water mist system on oil cooler to handle that conditio= n. > With a 3000+ fpm ROC I can always throttle back a bit if I'm out of > distilled water. > > Tracy > > On Fri, Sep 3, 2010 at 3:21 AM, wrote: > > Hi Tracy > > How are you going with ironing out the setup of your RV8 20B? > You=92ve had a summer and I=92m wondering how its going. > I chose a similar setup as far as cooling so keen to see how its going. > Can you give us your radiator dimensions and intake and exit sizes? > > Thanks > > Steve Izett > Building Glasair SIIRG Renesis 4 port RD!-C EC2 EM3 > ------------------------------ > The contents of this email are confidential and intended only for the nam= ed > recipients of this e-mail. If you have received this e-mail in error, you > are hereby notified that any use, reproduction, disclosure or distributio= n > or the information contained in this e-mail is prohibited. Please notify = the > sender immediately and then delete/destroy the e-mail and any printed > copies. All liability for viruses is excluded to the fullest extent of th= e > law. > > > > --001485f6ce1e9e0298048f65950f Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Yes, the size increase was fairly recent.=A0 If I were doing it over again = I'd make both inlets 6 - 6.25 " in diameter and I would pinch the = rear end of the Rad wedge diffuser even tighter.

Tracy

On Fri, Sep 3, 2010 at 8:39 PM, <stevei@carey.asn.au> wrote:
Tracy

Have you made any significant mods to the inlet duct sinse posting the phot= os on your web site some years back, as in when you enlarged to inlet?

I=92ll be on to building the ducts soon. If you were to make any mods what = would they be, deep wisdom re diffuser design?

Thanks

Steve Izett


On 3/09/10 8:18 PM, "Tracy" <tracy@rotaryaviation.com> wrote:

Hi Steve,
=A0=A0 It's been so hot here that the cooling of the pilot has been my = main problem.=A0 I only have about 36 hours on the -8 but it is cooling OK = in any weather I can tolerate.=A0

I posted my cooling developments here on fly rotary so they should be in th= e archives.=A0 There is also a summary on my website (RV-8 page).=A0 Also c= overed in issue 100 of Contact! magazine.=A0 Last change was to inlet sizes= which I had made a bit small.=A0 Looks like 6" diameter for water and= 5.5" Dia. for oil would be about right for my installation.=A0 They a= re slightly smaller right now.=A0 I played with outlet changes till I was t= ired of fiberglass and never made much progress.=A0 Inlets were the key on = mine but this is not always true.=A0 It depends on a LOT of variables.=A0= =A0 Outlet is now standard RV-8 dimensions.=A0

Rad is a 12 X 18 X 2.625 core Griffin,=A0 Oil cooler is 10.5 X 11 x 2=A0 ge= neric 30 row cooler.

Only time cooling is limiting is during full power climb in 92+ temps.=A0 I= plan to install a water mist system on oil cooler to handle that condition= .=A0 With a 3000+ fpm ROC I can always throttle back a bit if I'm out o= f distilled water.

Tracy

On Fri, Sep 3, 2010 at 3:21 AM, =A0<stevei@carey.asn.au> wrote:
Hi Tracy

How are you going with ironing out the setup of your RV8 20B?
You=92ve had a summer and I=92m wondering how its going.
I chose a similar setup as far as cooling so keen to see how its going.
Can you give us your radiator dimensions and intake and exit sizes?

Thanks

Steve Izett
Building Glasair SIIRG Renesis 4 port RD!-C EC2 EM3
The contents of this email are confidential and intended only for the= named recipients of this e-mail. If you have received this e-mail in error= , you are hereby notified that any use, reproduction, disclosure or distrib= ution or the information contained in this e-mail is prohibited. Please not= ify the sender immediately and then delete/destroy the e-mail and any print= ed copies. All liability for viruses is excluded to the fullest extent of t= he law.



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