X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 04 Jun 2013 12:08:19 -0400 Message-ID: X-Original-Return-Path: Received: from nm2-vm4.bullet.mail.gq1.yahoo.com ([98.136.218.131] verified) by logan.com (CommuniGate Pro SMTP 6.0.5) with ESMTPS id 6306427 for lml@lancaironline.net; Tue, 04 Jun 2013 10:21:54 -0400 Received-SPF: none receiver=logan.com; client-ip=98.136.218.131; envelope-from=flycassutts@yahoo.com Received: from [98.137.12.59] by nm2.bullet.mail.gq1.yahoo.com with NNFMP; 04 Jun 2013 14:21:18 -0000 Received: from [208.71.42.213] by tm4.bullet.mail.gq1.yahoo.com with NNFMP; 04 Jun 2013 14:21:18 -0000 Received: from [127.0.0.1] by smtp224.mail.gq1.yahoo.com with NNFMP; 04 Jun 2013 14:21:18 -0000 X-Yahoo-Newman-Id: 223186.83081.bm@smtp224.mail.gq1.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: Mb9LT_EVM1nWupaUgqXcdh9ueksZCAfqTim859gXl9UE86q 2fvDGrRQOzERRsIpx5tiALjbr0qgmhM2nz0Qzw3MGq0AizI8UAsKQsnu7UQU uJ4_nThj7_hMPLJ172ErY0FcSthBVUl8WwEW_QrARKoqbsL3t6aK8bqJzVc_ bvrp09okGlQ8gESzTfaNB4v7KDOtf34v_N1vrgOIkOYYyErMgPYEiJBtU144 2W51z.9_l7DV5aVigjLvHezlLUmZb.aovk6S1plknX5L5fFJpConGOC3VAcJ ojMe1zxTvCNEHCf2sAL2KD3rRqmB6rTu7DvzsuligQ6.URiNyvvVn8ow2swv Kmw4TTl5K_SRKnubHmVVUKmMySCY7KMlXlu7QRlUEb6sSroogfl8C_Rtj.D3 X9GbohuDG6tXamub4pxytnyBdPwxaqikv.SH2DTKLcaPQy6C0yf2g0o0U7Ul m9fpPnVMGQZCuav9vIDXTOGbQdqWKDC6qnhMofi6il4QElUhOdbCBU4sl3.2 COb6.a2llMPp17ihD2ic90nI50HFEukUGx6IMwOc.ReR5RNRFfcIdmxEuYYs kzmuOUkiTsvPo0ltr76hDteD9ZLviutW7OslZ1WHMcLoX1.BzfxSY X-Yahoo-SMTP: dLaMIUmswBCkbwTeGmAXbmPRif0K_4ZI X-Rocket-Received: from [10.224.181.222] (flycassutts@174.252.7.232 with ) by smtp224.mail.gq1.yahoo.com with SMTP; 04 Jun 2013 14:21:18 +0000 UTC Subject: Re: [LML] Re: IV-P TSIO550 Plenum References: From: Art Jensen Content-Type: multipart/alternative; boundary=Apple-Mail-A58B3C92-2497-441F-8A47-7F4CC01B1E83 X-Mailer: iPhone Mail (10B329) In-Reply-To: X-Original-Message-Id: <4E754C33-E4FC-437B-BCB5-F6C1215F2636@yahoo.com> X-Original-Date: Tue, 4 Jun 2013 10:21:03 -0400 X-Original-To: Lancair Mailing List Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (1.0) --Apple-Mail-A58B3C92-2497-441F-8A47-7F4CC01B1E83 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Ralf, What allowance did you make in the diffuser for cooling of the alternator? A= ny photos? Thanks=20 Art Sent from my iPhone; Art Jensen On Jun 4, 2013, at 9:54 AM, wrote: > Hi Bob, > =20 > I built a plenum for my TSIO550. Unfortunately I don=E2=80=99t have before= /after data on it but Charlie Kohler told me that my heads are running very v= ery cool even having the tight lower old cowl that became obsolete because o= f cooling issues. My oil temp is running a little above average (approx 190F= at an OAT 20=E2=80=A625F at FL200) > =20 > The actual plenum was a piece of cake =E2=80=93 I just taped down cardboar= d sheets on the engine, waxed it and laid 3 layers of carbon on top. After i= t was dry I removed it and cut it to size. > =20 > Making the baffling and modifying the cowl to reduce the leaks turned into= a real project. Fred Moreno has a lot of helpful tips in the archive for th= e baffling. I also copied the design of the sliding oil door from Brent Rega= n. The air-inlet is copied from 320/360 pictures ( when it comes to plenums t= here is a lot more know how than on the IV side =E2=80=93 obviously the 320/= 360 group is more fanatic about speed J) > =20 > I don=E2=80=99t remember how many hundred hours I have in this =E2=80=93 b= ut it was a lot. You need a lot of passion to go there especially since you h= ave a flying airplane already. > =20 > If you look for the most economical and quick solution I probably would go= to Aerochia =E2=80=93 I think they have a complete cowl-plenum- design that= they sell. > =20 > If you really want to do this by yourself you are welcome to stop at 5G7 a= ny time and look at my design to collect further ideas. > =20 > Ralf > =20 > From: Bob Rickard [mailto:r.rickard@rcginc-us.com]=20 > Sent: Monday, June 03, 2013 5:11 PM > To: lml@lancaironline.net > Subject: IV-P TSIO550 Plenum > =20 > Gents - a couple of questions regarding plenum design (IV-P/TSIO 550 speci= fic) > =20 > 1. What do you do about the oil door on top of the cowl? =20 > =20 > 2. Is it better to have absolute min volume around the engine, or is it o= k to mold to the cowl for the upper sides? > =20 > 3. What do you do for airflow on the pilots side where the 3rd intercooler= is? > =20 > I'm definitely sold on the plenum idea and have a great carbon man here in= STL. Just need to figure out those specifics to get designing=E2=80=A6.. > =20 > =20 > Thanks > =20 > Bob R > IV-P > =20 > =20 > On May 25, 2013, at 12:51 PM, Paul Miller wrote: >=20 >=20 > Tom, I looked at your plenum page > =20 > http://www.n54sg.com/baffle-kit-diffusers-and-plenum/ > =20 > where you place the poster board over the engine for a mold shape. I was t= hinking how easy that could be on the IO550 even if it didn't do all the fan= cy work up front with diffusers and so forth. Such a simple piece might sea= l the back, two sides for perhaps 75% positive seal. It would get rid of a l= ot of silicone strips with (what appears to be) reasonable effort. Great id= ea. > =20 > Paul > Legacy > On 2013-05-24, at 1:57 PM, Tom McNerney wrote: >=20 >=20 > A lot is possible. Could be gear actuator, could be a door actuator, coul= d be the dump valve, etc. > =20 > =20 > >=20 > Bob Rickard > President, Rickard Consulting Group, Inc. > r.rickard@rcginc-us.com >=20 >=20 >=20 > =20 > > > > > > > > > > > > > -- > For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.htm= l --Apple-Mail-A58B3C92-2497-441F-8A47-7F4CC01B1E83 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
Ralf,

What al= lowance did you make in the diffuser for cooling of the alternator?  An= y photos?

Thanks 
Art

Sent fr= om my iPhone; Art Jensen

On Jun 4, 2013, at 9:54 AM, <bronnenmeier@GROBSYSTEMS.COM&= gt; wrote:

Hi Bob,

 

I built a plenum for my TSIO550. Unfor= tunately I don=E2=80=99t have before/after data on it but Charlie Kohler tol= d me that my heads are running very very cool even having the tight lower ol= d cowl that became obsolete because of cooling issues. My oil temp is runnin= g a little above average (approx 190F at an OAT 20=E2=80=A625F at FL200)

&nbs= p;

The actu= al plenum was a piece of cake =E2=80=93 I just taped down cardboard sheets o= n the engine, waxed it and laid 3 layers of carbon on top. After it was dry I= removed it and cut it to size.

 

Making the baffling and modifying the cowl to re= duce the leaks turned into a real project. Fred Moreno has a lot of helpful t= ips in the archive for the baffling. I also copied the design of the sliding= oil door from Brent Regan. The air-inlet is copied from 320/360 pictures ( w= hen it comes to plenums there is a lot more know how than on the IV side =E2= =80=93 obviously the 320/360 group is more fanatic about speed J)

 

I don=E2=80=99t remember how many hundred hours I have in th= is =E2=80=93 but it was a lot. You need a lot of passion to go there especia= lly since you have a flying airplane already.

 

If you look for the most economica= l and quick solution I probably would go to Aerochia =E2=80=93 I think they h= ave a complete cowl-plenum- design that they sell.

 

If you really want to do this b= y yourself you are welcome to stop at 5G7 any time and look at my design to c= ollect further ideas.

 

Ralf

 

From: Bob Rickard [mailto:r.rickard@rcginc-us.com]
Sent: Monday, June 03, 2013 5:11 PM
To: lml@lancaironline.net
Subject: IV-P TSIO550 Plenum=

 

Gents - a couple of questions regarding plenum desi= gn (IV-P/TSIO 550 specific)

&= nbsp;

1.  What do you do abo= ut the oil door on top of the cowl?  

 

2. &nb= sp;Is it better to have absolute min volume around the engine, or is it ok t= o mold to the cowl for the upper sides?

 

3. What d= o you do for airflow on the pilots side where the 3rd intercooler is?

 

I'm definitely sold on the plenum idea and have a great= carbon man here in STL.  Just need to figure out those specifics to ge= t designing=E2=80=A6..

=  

 

Thanks

 

Bob R

IV-P

 

 

On May 25, 2013, at 12:51= PM, Paul Miller <pjdmiller@gmail.= com> wrote:



<= /o:p>

Tom, I looked at your plenum page<= /o:p>

 

 

where you place the poster board over the engine for a mold s= hape.  I was thinking how easy that could be on the IO550 even if it di= dn't do all the fancy work up front with diffusers and so forth.  Such a= simple piece might seal the back, two sides for perhaps 75% positive seal. &= nbsp;It would get rid of a lot of silicone strips with (what appears to be) r= easonable effort.  Great idea.

 

Paul

Legacy

On 2013-05-24, at 1:57 PM, Tom McNerney <dudewanarace@yahoo.com> wrote:=



A lot is possible.  Could be gear actuator,= could be a door actuator, could be the dump valve, etc.

 

=

 

<= image001.jpg><= o:p>


Bob Rickard

President, Rickard Consulting Group, Inc.

r.rickard@rcginc-us.com



 

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