X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Fri, 01 Jun 2007 16:47:06 -0400 Message-ID: X-Original-Return-Path: Received: from mtao02.charter.net ([209.225.8.187] verified) by logan.com (CommuniGate Pro SMTP 5.1.9) with ESMTP id 2079064 for lml@lancaironline.net; Fri, 01 Jun 2007 15:46:28 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.225.8.187; envelope-from=farnsworth@charter.net Received: from aa09.charter.net ([10.20.200.161]) by mtao02.charter.net (InterMail vM.7.08.02.00 201-2186-121-20061213) with ESMTP id <20070601194543.KBHY1555.mtao02.charter.net@aa09.charter.net> for ; Fri, 1 Jun 2007 15:45:43 -0400 Received: from karen473fcf455 ([75.139.140.126]) by aa09.charter.net with ESMTP id <20070601194542.QUWU6151.aa09.charter.net@karen473fcf455> for ; Fri, 1 Jun 2007 15:45:42 -0400 From: "Farnsworth" X-Original-To: "'Lancair Mailing List'" Subject: RE: [LML] Re: TSIO 550 LOP X-Original-Date: Fri, 1 Jun 2007 15:45:45 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0058_01C7A463.EB4DF1E0" X-Mailer: Microsoft Office Outlook, Build 11.0.5510 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 In-Reply-To: Thread-Index: AcekgLfQSiqwRDSKTbu7sxG3Uq2aagAA6Ibg X-Original-Message-Id: <20070601194542.QUWU6151.aa09.charter.net@karen473fcf455> X-Chzlrs: 0 This is a multi-part message in MIME format. ------=_NextPart_000_0058_01C7A463.EB4DF1E0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit George, When I was being checked in the plane out by Orin Ridell he did a "GAMI" check. I believe the # 5 EGT peaked at 1528 F. That is what I've used as the reference EGT for adjusting to lean of peak. Based on that, this flight was 103 F lean of peak. Why am I getting the feeling that I may have been operating using incorrect procedures/data? Lynn _____ From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of George Braly Sent: Friday, June 01, 2007 3:12 PM To: lml@lancaironline.net Subject: [LML] Re: TSIO 550 LOP Lynn, Do you know how far lean (or rich) of peak you wee at 18.9 gph? Normally at 29.5" x ~2500 RPM and 18.9 gph - - - you would be pretty close to peak TIT. But your TIT values don't look like they are at absolute values that would normally correspond to peak in a 7.5"1 TSIO-550 engine. Thus - - - just looking at the "over all picture" of your data - - - there is something there that doesn't "fit". If I was going to start troubleshooting, I would first want to see a simple GAMI lean test at those power settings. From that, I could probably make a good educated guess as to where the instrumentation discrepancy is. Regards, George _____ From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Farnsworth Sent: Thursday, May 31, 2007 10:34 AM To: lml@lancaironline.net Subject: [LML] Re: TSIO 550 LOP Colyn, Here are the figures from one of my flights a few months ago: 17,570' Altitude (20,090 PA) IAS - 195 KTS; TAS - 265 KTS Induction air temp - 84 F Manifold pressure - 29.5 RPF - 2490 Fuel flow - 18.9 GPH TIT # 1 - 1620 F TIT # 2 - 1576 F EGT CHT 1. 1456 1. 334 2. 1415 1. 335 3. 1451 3. 310 4. 1421 4. 301 5. 1425 5. 316 6. 1424 6. 315 Lynn Farnsworth Super Legacy #235 TSIO-550 Powered Race #44 _____ From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Colyn Case on earthlink Sent: Wednesday, May 30, 2007 11:25 PM To: lml@lancaironline.net Subject: [LML] Re: TSIO 550 LOP So I'm not able to run my engine much beyond 15gph LOP at high altitude without exceeding 1650 on my right turbo. I'm trying to figure out if I have a gauge problem. What spread do people see between egt and tit? What spread between the left TIT and the right TIT? Mine is about 100 dF. Since there are 6 egt gauges I'm inclined to believe that not all 6 are broken the same way. ....whereas the tit may be suspect. Also, my right TIT is 50 dF hotter than the left. Colyn ------=_NextPart_000_0058_01C7A463.EB4DF1E0 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

George,

=

 

When I was being checked in the = plane out by Orin Ridell he did a “GAMI” check. I believe the # 5 EGT = peaked at 1528 F. That is what I’ve used as the reference EGT for = adjusting to lean of peak. Based on that, this flight was 103 F lean of = peak.

 

Why am I getting the feeling that I = may have been operating using incorrect = procedures/data?

 

Lynn

 

 

From: = Lancair Mailing List = [mailto:lml@lancaironline.net] On Behalf Of George Braly
Sent: Friday, June 01, = 2007 3:12 PM
To: = lml@lancaironline.net
Subject: [LML] Re: TSIO = 550 LOP

 

Lynn,

 

Do you know how far lean (or rich) = of peak you wee at 18.9 gph?

 

Normally at 29.5” x ~2500 RPM   and 18.9 gph - - - you would be pretty close to peak = TIT. 

 

But your TIT values don’t = look like they are at absolute values that would normally correspond to peak in a = 7.5”1 TSIO-550 engine.

 

Thus - - - just looking at the = “over all picture”  of your data - - -   there is = something there that doesn’t  “fit”. =

 

If I was going to start = troubleshooting,  I would first want to see a simple GAMI   lean test  at = those power settings.

 

From that,  I could probably = make a good educated guess as to where the instrumentation discrepancy = is.

 

Regards,  = George

 

From: = Lancair Mailing List = [mailto:lml@lancaironline.net] On Behalf Of Farnsworth
Sent: Thursday, May 31, = 2007 10:34 AM
To: = lml@lancaironline.net
Subject: [LML] Re: TSIO = 550 LOP

 

Colyn,

 

Here are the figures from one of my flights a few months ago:

 

17,570’ Altitude (20,090 = PA)

IAS – 195 KTS; TAS – = 265 KTS

Induction air temp – 84 = F

Manifold pressure – = 29.5

RPF – = 2490

Fuel flow – 18.9 = GPH

TIT # 1 – 1620 = F

TIT # 2 – 1576 = F

 

EGT     &nb= sp;     CHT

 

1. 1456       1. = 334

2. 1415       1. = 335

3. = 1451       3. 310

4. 1421       4. = 301

5. = 1425       5. 316

6. 1424       6. = 315

 

Lynn = Farnsworth

Super Legacy = #235

TSIO-550 = Powered

Race = #44

 

From: = Lancair Mailing List = [mailto:lml@lancaironline.net] On Behalf Of Colyn Case on = earthlink
Sent: Wednesday, May 30, = 2007 11:25 PM
To: = lml@lancaironline.net
Subject: [LML] Re: TSIO = 550 LOP

 

So I'm not able to run my engine = much beyond 15gph LOP at high altitude without exceeding 1650 on my right = turbo.

I'm trying to figure out if I have = a gauge problem.

 

=

What spread do = people see between egt and tit? 

 

=

What spread = between the left TIT and the right TIT?

  =

Mine is about 100 dF.  Since = there are 6 egt gauges I'm inclined to believe that not all 6 are broken the = same way.

....whereas the tit may be = suspect.

Also, my right TIT is 50 dF hotter = than the left.

 

=

Colyn

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