Return-Path: <13brv3@bellsouth.net> Received: from [209.114.234.2] (HELO IPOfCard1.guest-tek.com) by logan.com (CommuniGate Pro SMTP 4.2b2) with ESMTP id 3179802 for flyrotary@lancaironline.net; Mon, 19 Apr 2004 23:37:58 -0400 Received: from USDCLES112NB160 ([198.18.1.149]) by IPOfCard1.guest-tek.com (8.11.6/8.11.6) with SMTP id i3K3Oiu31534 for ; Mon, 19 Apr 2004 23:24:44 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "Rotary motors in aircraft" Subject: RE: [FlyRotary] Re: intake ideas? Date: Mon, 19 Apr 2004 23:38:30 -0400 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0028_01C42667.6C0EE920" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.6604 (9.0.2911.0) In-Reply-To: Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 This is a multi-part message in MIME format. ------=_NextPart_000_0028_01C42667.6C0EE920 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Actually, there are photos of his intake published in his paper news letters and I think there is one on his web site. Tracy's tubes are around 1.25 dia for the primary and around 1.5" for the secondary. Thanks for all the info Ed. Now that you showed some pics, and described Tracy's intake, I remember the pics from his book, or newsletter. Naturally, I don't have any of that with me here in Cleveland. I'm still debating the whole intake thing. It would be reasonably easy for me to test a short intake for a static rpm test, since I wouldn't have to modify it to fit under the cowl. I also wouldn't be matching the ports of the intake to the engine, so the short manifold would be at somewhat of a disadvantage. The current intake is probably pretty good on power, which can be proven when I get Tracy's old prop. Since he can provide static rpm numbers, I'll know right away how my engine is doing when compared to his. I sure hope the results aren't too depressing :-) If the current intake is making good power, and not causing any other significant problems (excessive fuel burn, or cold start problems), there's no reason to get rid of it. If it does happen to suffer from some problems, it looks like I can mill out the bosses on the secondary ports of the intake, and possibly install injectors there. That should make a pretty good compromise. I really do like the fact that all the fuel is on the cold side of the engine, so I'll have to prove that there's really something wrong with the current setup, before I'll get rid of it. Cheers, Rusty (starting to order materials for the Airbike wings) ------=_NextPart_000_0028_01C42667.6C0EE920 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Actually, there are photos of his = intake=20 published in his paper news letters and I think there is one on his web=20 site.

Tracy's tubes are around 1.25 dia = for the=20 primary and around 1.5" for the secondary.

Thanks for all the info Ed. Now that you = showed some=20 pics, and described Tracy's intake, I remember the pics from his book, = or=20 newsletter. Naturally, I don't have any of that with me here = in=20 Cleveland.

I'm still debating the whole intake = thing. It would=20 be reasonably easy for me to test a short intake for a static rpm = test,=20 since I wouldn't have to modify it to fit under the cowl. I = also=20 wouldn't be matching the ports of the intake to the engine, = so the=20 short manifold would be at somewhat of a disadvantage. =20

The current intake is probably pretty good = on power,=20 which can be proven when I get Tracy's old prop. Since he can = provide=20 static rpm numbers, I'll know right away how my engine is doing = when=20 compared to his. I sure hope the results aren't too depressing=20 :-) =

If the current intake is making good power, and = not causing=20 any other significant problems (excessive fuel burn, or cold start = problems),=20 there's no reason to get rid of it. If it does happen to suffer = from some=20 problems, it looks like I can mill out the bosses on the secondary ports = of the=20 intake, and possibly install injectors there. That should make a = pretty=20 good compromise. I really do like the fact that all the fuel is on = the=20 cold side of the engine, so I'll have to prove that there's really = something=20 wrong with the current setup, before I'll get rid of=20 it.

Cheers,

Rusty (starting to order materials for the = Airbike=20 wings)

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