Return-Path: Received: from fed1rmmtao04.cox.net ([68.230.241.35] verified) by logan.com (CommuniGate Pro SMTP 4.2b8) with ESMTP id 335319 for flyrotary@lancaironline.net; Mon, 26 Jul 2004 23:50:57 -0400 Received-SPF: error receiver=logan.com; client-ip=68.230.241.35; envelope-from=daveleonard@cox.net Received: from davidandanne ([68.111.224.107]) by fed1rmmtao04.cox.net (InterMail vM.6.01.03.02.01 201-2131-111-104-103-20040709) with SMTP id <20040727035025.VPLK21079.fed1rmmtao04.cox.net@davidandanne> for ; Mon, 26 Jul 2004 23:50:25 -0400 From: "DaveLeonard" To: "Rotary motors in aircraft" Subject: RE: [FlyRotary] Re: water pump Date: Mon, 26 Jul 2004 20:50:30 -0700 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_005D_01C47352.304D95C0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 Importance: Normal In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_005D_01C47352.304D95C0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit John, does your re-builder think that you will still be able to run 38" MAP continuous or does he think you will have to back off? Did he recommend a max EGT? Any comments on running lean? I have over 40 hours now on mine running mostly in the mid 20's of MAP at higher altitudes. Its working great so far. I'm just waiting for you to test another one to destruction to see exactly how hard I can push mine :-) BTW, does anyone know how fast Tracy let his old prop turn? What size is it? Rusty? Dave Leonard > By the way I work just a few minutes from ATS Turbonetics and will be taking to them soon to mod the turbo so ill > let you know what they say. That's interesting. I just got off the phone with Max Heywood (owner of ATS). My turbo has just been rebuilt and modified per his web page (at a very reasonable price) and will ship back to me today/tomorrow. We also talked about controlling the wastegate. Max feels I should use the stock boost controller and make it adjustable either on the ground or via a cockpit control. He's going to send me a info on how to do that. Here are Max's comments on what happened to my old turbo: 3 things can cause a turbine wheel to drop off that I'm aware of 1/Overspeeding, 2/ Excessive Heat 3/ Fatigue (from old age) or any combo of these. The larger compressor wheel will slow down the rotational speed of the rotor assembly which will help overcome overspeeding. He wants me to check that I have a minimum of 250 ML /min oil flow from the turbo at idle to eliminate item 2. Item 3 is no longer applicable since the turbo is now rebuilt to his exacting standards of precision and balance. John Slade (almost done fixing the roof) ------=_NextPart_000_005D_01C47352.304D95C0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

John,=20 does your re-builder think that you will still be able to run 38"=20 MAP continuous or does he think you will have to back off? = Did he=20 recommend a max EGT? Any comments on running = lean?

I have=20 over 40 hours now on mine running mostly in the mid 20's of MAP at = higher=20 altitudes. Its working great so far. I'm just waiting for = you to=20 test another one to destruction to see exactly how hard I can push = mine =20 :-)

BTW,=20 does anyone know how fast Tracy let his old prop turn? What size = is=20 it? Rusty?

Dave=20 Leonard

> By the way I work just a few = minutes=20 from ATS Turbonetics and will be taking to them soon to mod the turbo = so=20 ill

> let you=20 know what they say.

That's interesting. I just got off the = phone with Max=20 Heywood (owner of ATS). My turbo has just been rebuilt and modified = per his=20 web page (at a very reasonable price) and will ship back to me=20 today/tomorrow.

We also talked about controlling the = wastegate. Max=20 feels I should use the stock boost controller and make it adjustable = either on=20 the ground or via a cockpit control. He's going to send me a info on = how to do=20 that.

Here are Max's comments on what happened to my old=20 turbo:

3 things can cause a turbine wheel to = drop off=20 that I'm aware of 1/Overspeeding, 2/ Excessive Heat 3/ Fatigue (from = old age)=20 or any combo of these. The larger compressor wheel will slow down the=20 rotational speed of the rotor assembly which will help overcome=20 overspeeding.

He wants me to check = that I have=20 a minimum of 250 ML /min oil flow from the turbo at idle to eliminate = item 2.=20 Item 3 is no longer applicable since the turbo is now rebuilt to his = exacting=20 standards of precision and = balance.

John Slade (almost done fixing the=20 roof)

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