X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 15 Aug 2011 07:39:45 -0400 Message-ID: X-Original-Return-Path: Received: from [69.84.129.242] (HELO asp.reflexion.net) by logan.com (CommuniGate Pro SMTP 5.4.1) with ESMTPS id 5091819 for lml@lancaironline.net; Sun, 14 Aug 2011 13:14:08 -0400 Received-SPF: none receiver=logan.com; client-ip=69.84.129.242; envelope-from=cberland@systems3.net Received: (qmail 22316 invoked from network); 14 Aug 2011 17:13:33 -0000 Received: from unknown (HELO mail-cs-03.app.dca.reflexion.local) (10.81.19.3) by 0 (rfx-qmail) with SMTP; 14 Aug 2011 17:13:33 -0000 Received: by mail-cs-03.app.dca.reflexion.local (Reflexion email security v6.50.3) with SMTP; Sun, 14 Aug 2011 13:13:33 -0400 (EDT) Received: (qmail 6601 invoked from network); 14 Aug 2011 17:13:32 -0000 Received: from unknown (HELO remote.systems3.net) (98.172.79.178) by 0 (rfx-qmail) with (AES128-SHA encrypted) SMTP; 14 Aug 2011 17:13:32 -0000 Received: from S3SBS08SERVER.Systems3.local ([fe80::6077:364b:fa39:c71b]) by S3SBS08SERVER.Systems3.local ([fe80::6077:364b:fa39:c71b%10]) with mapi; Sun, 14 Aug 2011 10:12:06 -0700 From: Craig Berland. X-Original-To: Lancair Mailing List X-Original-Date: Sun, 14 Aug 2011 10:12:10 -0700 Subject: [LML] What are your numbers?? Thread-Topic: [LML] What are your numbers?? Thread-Index: AcxahcanPBqmCEqVQdWK1Hx4JGvUwAAGm6lw X-Original-Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: multipart/alternative; boundary="_000_D7A6B5700A0803448C27264F1F5387364E90CB7E37S3SBS08SERVER_" MIME-Version: 1.0 --_000_D7A6B5700A0803448C27264F1F5387364E90CB7E37S3SBS08SERVER_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Ralf, I do not have GAMI injectors in my IV-P. I do have GAMI's in my Bonanza. = My IV-P engine has 8.5 to 1 CR, an experimental camshaft, ceramic coatings = in the exhaust, my own design intercoolers, and the larger turbo compressor= used in some Malibu. All this piddling caused the stock wastegate to be i= nadequate and I had to install a larger wastegate in order to prevent an ov= er boost condition. So yes....I would have to say my engine is different. = I wouldn't say it is significantly better.....but I had fun piddling. In m= y opinion it does not hurt anything to run 32 inHg at 2500 rpm and LOP. I = do all the time. I have for years run my TNIO550 A36 Bonanza at 30 inHg an= d 2500 rpm and LOP. I do watch my TIT's and CHT's very close and my person= al IV-P CHT limit is 385 degF and TIT is 1645 degF. A reduction of 0.1-0.2= gph will reduce CHT's 5 degs or more. I don't think CHT's at 390 degF wil= l hurt anything, I just like having a cushion before I see 400(+) degF. At= 400 degF I am doing something significant to reduce CHT's. I do believe t= his.....for any given engine at the same rpm and throttle setting, your CHT= 's reflect peak cylinder pressure. If you are ROP and CHT's are 395 degF a= nd when you go LOP at the same settings and your CHT's are 375 degF.....you= are abusing your engine LESS when LOP. However you go faster ROP. Craig N7VG Hello Craig, Do you have the GAMI injectors or was your engine set up in a special way? I thought that LOP operations are approved up to 28 inHG. I would like to r= un mine with 32 inHg but I am afraid to damage something. Here is what I see so far: Climb - full power - full rich (this gives me the coolest temps) - 160...17= 0 IAS - CHT 380 - 390 - results in 1600 ft/min (beginning) 800 ft/min (end) Level off at FL22, FL23 - full power - full rich - TAS 292...297 (on the be= zel - I know this reads high) - #3+4 CHT 380 - 390 After this LOP at FL22, FL23 at 28 inHG, 16.1 gph - TAS 270...275 (on the b= ezel) - #1 CHT 360...375 Like I said I would like to run it at 32 inHg LOP but I am afraid I damage = something. Ralf --_000_D7A6B5700A0803448C27264F1F5387364E90CB7E37S3SBS08SERVER_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Ralf,

 

I do not have GAMI injectors in my IV-P.  I do have GAMI̵= 7;s in my Bonanza.  My IV-P engine has 8.5 to 1 CR, an experimental ca= mshaft, ceramic coatings in the exhaust, my own design intercoolers, and th= e larger turbo compressor used in some Malibu.  All this piddling caus= ed the stock wastegate to be inadequate and I had to install a larger waste= gate in order to prevent an over boost condition. So yes….I would hav= e to say my engine is different.  I wouldn’t say it is significa= ntly better…..but I had fun piddling.  In my opinion it does not= hurt anything to run 32 inHg at 2500 rpm and LOP.  I do all the time.=  I have for years run my TNIO550 A36 Bonanza at 30 inHg and 2500 rpm = and LOP.  I do watch my TIT’s and CHT’s very close and my = personal IV-P CHT limit is 385 degF and TIT is 1645 degF.  A reduction= of 0.1-0.2 gph will reduce CHT’s 5 degs or more.  I don’t= think CHT’s at 390 degF will hurt anything, I just like having a cus= hion before I see 400(+) degF.  At 400 degF I am doing something signi= ficant to reduce CHT’s.  I do believe this…..for any given= engine at the same rpm and throttle setting, your CHT’s reflect peak= cylinder pressure.  If you are ROP and CHT’s are 395 degF and w= hen you go LOP at the same settings and your CHT’s are 375 degF…= ;..you are abusing your engine LESS when LOP.  However you go faster R= OP.

Craig

N7VG

&= nbsp;

Hello Craig,

Do you have the GAMI injectors or was = your engine set up in a special way?

I thought that LOP operations are approved up to 28 inHG. I wou= ld like to run mine with 32 inHg but I am afraid to damage something.<= /o:p>

Here is what I see so far:=

Climb – full power ̵= 1; full rich (this gives me the coolest temps) – 160…170 IAS &#= 8211; CHT 380 – 390 – results in 1600 ft/min (beginning) 800 ft= /min (end)

Level off at FL= 22, FL23 – full power – full rich – TAS 292…297 (on= the bezel – I know this reads high) – #3+4 CHT 380 - 390<= /o:p>

After this LOP at FL22, FL23 at= 28 inHG, 16.1 gph – TAS 270…275 (on the bezel) – #1 CHT = 360…375

Like I said= I would like to run it at 32 inHg LOP but I am afraid I damage something.<= o:p>

Ralf

=
= --_000_D7A6B5700A0803448C27264F1F5387364E90CB7E37S3SBS08SERVER_--