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Return-Path: <13brv3@bellsouth.net> Received: from imf17aec.mail.bellsouth.net ([205.152.59.65] verified) by logan.com (CommuniGate Pro SMTP 4.1.5) with ESMTP id 2636390 for flyrotary@lancaironline.net; Tue, 14 Oct 2003 10:47:32 -0400 Received: from rad ([68.212.14.231]) by imf17aec.mail.bellsouth.net (InterMail vM.5.01.05.27 201-253-122-126-127-20021220) with ESMTP id <20031014144731.IANR1795.imf17aec.mail.bellsouth.net@rad> for ; Tue, 14 Oct 2003 10:47:31 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: boost Date: Tue, 14 Oct 2003 09:48:04 -0500 Message-ID: <000001c39262$2c9be390$6001a8c0@rad> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C39238.43C5DB90" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.4510 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C39238.43C5DB90 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Glad to hear you're finally happy about boost. I REALLY love the = climb performance of mine. I don't regret for a second putting it on.=20 =20 How much boost are you running now? Are you able to run full throttle, = or are you having to limit throttle to limit boost? I took a look at the wastegate in the S5 turbo, and there's plenty of room to enlarge it. = The problem is that the flapper door can't open more than about 3/16" before = it hits the end housing. If I were going to pursue this further, I'd look = into making about a 1/4" spacer to move the end housing away so the flapper = door could actually open more. That would probably help as much as porting = the openings. =20 Are you still going to order from turbonetics?=20 =20 Yep. The order is going out today. Leon pointed out that the cracks = are from heating and cooling cycles, which happen far more often in a car = than in a plane. I would suspect that you could use a new stock turbo for a = long time in a plane before cracks appear. The problem is that new stock = turbos are more expensive than the Turbonetics model. Since the Turbonetics = unit is far superior for our needs, choosing it is really a no-brainer. =20 =20 I'll fly tomorrow for sure.... unless its snowing.... hard :-)=20 =20 Good luck. I don't have any snow to worry about, but I can't = realistically fly during the week. Our airport is in a small notch of the Navy's = training airspace, and I can't exceed 900 ft, or head any direction but South. Flying low out over the bay just isn't in my ideal flight testing = guidelines at the moment :-) And yes, I could call ATC and enter their airspace, = but I can tell you from experience that they will not let me do anything = close to what I need to do. Fortunately, on the weekends and holidays, the = Navy airspace is inactive, and once I get the engine proven, sneaking out = under their airspace for 10 miles or so won't be any problem. =20 =20 Cheers, Rusty =20 =20 ------=_NextPart_000_0001_01C39238.43C5DB90 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

Glad to hear you're finally happy about boost. I REALLY = love the=20 climb performance of mine. I don't regret for a second putting it = on.

&nbs= p;

How much = boost are you=20 running now? Are you able to run full throttle, or are you having = to limit=20 throttle to limit boost? I took a look at the wastegate in the S5 = turbo,=20 and there's plenty of room to enlarge it. The problem is that = the=20 flapper door can't open more than about 3/16" before it hits the = end=20 housing. If I were going to pursue this further, I'd = look into=20 making about a 1/4" spacer to move the end housing away so the = flapper door=20 could actually open more. That would probably help as much as = porting=20 the openings.

Are you still=20 going to order from turbonetics?

Yep. The = order is=20 going out today. Leon pointed out that the cracks are from heating = and=20 cooling cycles, which happen far more often in a car than in a = plane. =20 I would suspect that you could use a new stock turbo for a long time in = a plane=20 before cracks appear. The problem is that new stock turbos are = more=20 expensive than the Turbonetics model. Since the Turbonetics unit = is far=20 superior for our needs, choosing it is really a=20 no-brainer.

I'll fly=20 tomorrow for sure.... unless its snowing.... hard :-)

Good = luck. I don't=20 have any snow to worry about, but I can't realistically = fly during the=20 week. Our airport is in a small notch of the Navy's = training=20 airspace, and I can't exceed 900 ft, or head any direction but = South. =20 Flying low out over the bay just isn't in my ideal flight testing = guidelines at=20 the moment :-) And yes, I could call ATC and enter = their=20 airspace, but I can tell you from experience that they will = not let me=20 do anything close to what I need to do. Fortunately, on the = weekends=20 and holidays, the Navy airspace is inactive, and once I get the engine = proven,=20 sneaking out under their airspace for 10 miles or so won't be any=20 problem.

Cheers,

Rusty

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