Return-Path: Received: from mail15.syd.optusnet.com.au ([211.29.132.196] verified) by logan.com (CommuniGate Pro SMTP 4.3c2) with ESMTP-TLS id 761161 for flyrotary@lancaironline.net; Sat, 26 Feb 2005 22:32:23 -0500 Received-SPF: none receiver=logan.com; client-ip=211.29.132.196; envelope-from=lendich@optusnet.com.au Received: from george (d220-237-203-63.dsl.nsw.optusnet.com.au [220.237.203.63]) by mail15.syd.optusnet.com.au (8.12.11/8.12.11) with SMTP id j1R3VYcn025307 for ; Sun, 27 Feb 2005 14:31:36 +1100 Message-ID: <001e01c51c7d$322c4920$3fcbeddc@george> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] A little down on power Date: Sun, 27 Feb 2005 13:34:08 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001B_01C51CD1.036BDBB0" 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_001B_01C51CD1.036BDBB0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable John, Who supplied your Turbo? George (down under) ----- Original Message -----=20 From: John Slade=20 To: Rotary motors in aircraft=20 Sent: Sunday, February 27, 2005 12:19 PM Subject: [FlyRotary] A little down on power I wonder if any of you expert Wanklers could comment on my latest = issue..... My turbo REW engine now starts almost instantly and runs very smoothly = at all rpm ranges. There's little if any soot on the prop so long as I = don't run too rich on take-off. My static used to be 4050. Lately it's = been in the 3900's with 46 MAP. More MAP (I tried briefly up to 50 = today) doesn't do a damn thing. There's plenty of power to take-off and = climb, but not as much as I had way back when before a thousand changes = because of which I can't pinpoint when the power changed. Could be = fairly recent (in terms of hours) and after the new turbo was fitted. = Could be partially a result of the hi-flow turbo, but I think not all. I've never been able to get any more power past a certain throttle = position. Its as though I get to a certain point, then more throttle and = boost just makes it shudder a bit, so I back off. That "there aint no = more" point on the throttle seems to be coming back toward the idle :) = I've also noticed that shutting off the primary injectors almost kills = the engine. If I struggle with it I CAN keep it running, but only just. I'm currently flying on 87 Octane. Could this be impacting my ability = to produce power this much? I'm working my way through the possible = octanes to see how she behaves so as not to get caught out later. The = next tankful will be 91, then 100LL. I've tried clean (not new) plugs. = That's my next experiment. Any other thoughts or suggestions welcome. John (flying, but not climbing as fast as I'd like) ------=_NextPart_000_001B_01C51CD1.036BDBB0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
John,
Who supplied your Turbo?
George (down under)
----- Original Message -----
From:=20 John=20 Slade
Sent: Sunday, February 27, 2005 = 12:19=20 PM
Subject: [FlyRotary] A little = down on=20 power

I = wonder if any of=20 you expert Wanklers could comment on my latest = issue.....
 
My = turbo=20 REW engine now starts almost instantly and runs very smoothly at = all rpm=20 ranges. There's little if any soot on the prop so long as I don't run = too rich=20 on take-off. My static used to be 4050. Lately it's been in the=20 3900's with 46 MAP. More MAP (I tried briefly up to 50 today) = doesn't do=20 a damn thing. There's plenty of power to take-off and climb, but not = as much=20 as I had way back when before a thousand changes because of which I = can't=20 pinpoint when the power changed. Could be fairly recent (in terms of=20 hours) and after the new turbo was fitted. Could be partially a = result of=20 the hi-flow turbo, but I think not all.
 
I've = never been=20 able to get any more power past a certain throttle position. Its as = though I=20 get to a certain point, then more throttle and boost just makes it = shudder a=20 bit, so I back off. That "there aint no more" point on the = throttle seems=20 to be coming back toward the idle :) I've also noticed that shutting = off the=20 primary injectors almost kills the engine. If I struggle with it I CAN = keep it=20 running, but only just.
 
I'm = currently=20 flying on 87 Octane. Could this be impacting my ability to = produce power=20 this much? I'm working my way through the possible = octanes to=20 see how she behaves so as not to get caught out later. The next = tankful will=20 be 91, then 100LL. I've tried clean (not new) plugs. That's my = next=20 experiment. Any other thoughts or suggestions = welcome.
 
John = (flying, but=20 not climbing as fast as I'd = like)
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