X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail27.syd.optusnet.com.au ([211.29.133.168] verified) by logan.com (CommuniGate Pro SMTP 4.3.5) with ESMTPS id 1025333 for flyrotary@lancaironline.net; Tue, 28 Jun 2005 19:17:46 -0400 Received-SPF: none receiver=logan.com; client-ip=211.29.133.168; envelope-from=lendich@optusnet.com.au Received: from george (d211-31-107-82.dsl.nsw.optusnet.com.au [211.31.107.82]) by mail27.syd.optusnet.com.au (8.12.11/8.12.11) with SMTP id j5SNGuEw030344 for ; Wed, 29 Jun 2005 09:16:58 +1000 Message-ID: <004801c57c37$834dd9d0$526b1fd3@george> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Single Rotor Research Date: Wed, 29 Jun 2005 09:17:10 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0045_01C57C8B.5423FC30" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 This is a multi-part message in MIME format. ------=_NextPart_000_0045_01C57C8B.5423FC30 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message I've had a look at the Turbo exhaust on the 13B and the overlap is = quite a bit more, as the extra area is in hight, compared to that of the = NA housing. The Turbo actually opens at the same time as the NA housing but closes = later, as you alluded to. So the Turbo housing is 'OUT' for the single PP. ( Hope your taking notes here Rusty).=20 Interesting observation, but are you sure your turbo housing hasn't = been ported?=20 No rusty the Turbo exhaust housing hasn't been touched! I just set an 87-88 6-port housing on top of an REW housing, and the = exhaust ports are identical in side, shape, and location. The only = difference is the 6-port has the splitter. Take a look at Paul Yaw's = article on port timing basics- http://www.yawpower.com/techindx.html = He gives the timing for intake and exhaust on lots of different = housings, and he shows the timing to be the same also. =20 That's interesting - I will send a photo, so you can see for yourself! For fun, check out the Picture Gallery. Start at picture number 25, = and you'll see his PP modification. =20 If those reading this are confused or not considering PP take no = notice - this is mainly for Rusty's information for when he converts to = PP.=20 I still want to do a test one day, with junk housings, but I've got a = lot better things to do with my time at the moment. I did spend a whole = morning reading PP posts on the RX-7 Club list the other day, and it = just reinforced what I've been told about this being a bad idea. There = were some nice pics of people boring their own ports though. =20 Don't worry Rusty were here for you when you need help! George ( down under) ------=_NextPart_000_0045_01C57C8B.5423FC30 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message

I've had a look at the Turbo exhaust on the 13B and the overlap = is quite=20 a bit more, as the extra area is in hight, compared to that = of the NA=20 housing.
The Turbo actually opens at the same time as the NA housing but = closes=20 later, as you alluded to.
So the Turbo housing is 'OUT' for = the single=20 PP.
( Hope your taking notes here Rusty). 
 
Interesting=20 observation, but are you sure your turbo housing hasn't been=20 ported? 
 
No rusty the=20 Turbo exhaust housing hasn't been touched!
 
 I just=20 set an 87-88 6-port housing on top of an REW housing, and the exhaust = ports=20 are identical in side, shape, and location.  The only = difference=20 is the 6-port has the splitter.  Take a look at Paul Yaw's = article=20 on port timing basics-  http://www.yawpower.com/te= chindx.html   =20 He gives the timing for intake and exhaust on lots of different = housings,=20 and he shows the timing to be the same = also.  
 
That's = interesting - I will=20 send a photo, so you can see for yourself!
 
For fun, = check out the=20 Picture Gallery.  Start at picture number 25, and you'll see his = PP=20 modification.   
 
If those reading this are confused or not considering = PP take=20 no notice - this is mainly for Rusty's information for when = he converts=20 to PP. 
 
I = still want to=20 do a test one day, with junk housings, but I've got a lot better = things to=20 do with my time at the moment.  I did spend a whole morning = reading=20 PP posts on the RX-7 Club list the other day, and it just reinforced = what I've=20 been told about this being a bad idea.  There were some nice = pics of=20 people boring their own ports though.  
 
Don't worry Rusty = were here=20 for you when you need help!
George ( down=20 under)
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