X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [64.12.136.170] (HELO imo-m11.mail.aol.com) by logan.com (CommuniGate Pro SMTP 5.2c1) with ESMTP id 2557354 for flyrotary@lancaironline.net; Wed, 05 Dec 2007 10:17:26 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.12.136.170; envelope-from=WRJJRS@aol.com Received: from WRJJRS@aol.com by imo-m11.mx.aol.com (mail_out_v38_r9.3.) id q.ccf.203121a8 (37543) for ; Wed, 5 Dec 2007 10:15:56 -0500 (EST) Received: from WEBMAIL-DC05 (webmail-dc05.webmail.aol.com [205.188.149.27]) by cia-mb02.mx.aol.com (v121.4) with ESMTP id MAILCIAMB024-92a74756c0ac243; Wed, 05 Dec 2007 10:15:56 -0500 References: To: flyrotary@lancaironline.net Subject: Re: [FlyRotary] Methods of charge cooling was Water/Meth injection Date: Wed, 05 Dec 2007 10:15:56 -0500 In-Reply-To: X-MB-Message-Source: WebUI MIME-Version: 1.0 From: wrjjrs@aol.com X-MB-Message-Type: User Content-Type: multipart/alternative; boundary="--------MB_8CA0568DE526B58_80C_4E87_WEBMAIL-DC05.sysops.aol.com" X-Mailer: AOL Webmail 33060-STANDARD Received: from 65.161.241.3 by WEBMAIL-DC05.sysops.aol.com (205.188.149.27) with HTTP (WebMailUI); Wed, 05 Dec 2007 10:15:56 -0500 Message-Id: <8CA0568DE526B58-80C-25EB@WEBMAIL-DC05.sysops.aol.com> X-AOL-IP: 205.188.149.27 X-Spam-Flag: NO ----------MB_8CA0568DE526B58_80C_4E87_WEBMAIL-DC05.sysops.aol.com Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii" Ed, intake charge cooling is fairly easily understood, but I believe Ben was talking about cooling the rotary EXHAUST. You have mentioned that the exhaust tends to melt or batter everything in front of it. Bill Jepson -----Original Message----- From: Ed Anderson To: Rotary motors in aircraft Sent: Tue, 4 Dec 2007 5:01 pm Subject: [FlyRotary] Methods of charge cooling was Water/Meth injection Ben, here is a URL that gives a number of different ways to cool the intake charge.? You may find it interesting ? http://www.landracing.com/index.php?option=com_content&task=view&id=24 ? Ed ----- Original Message ----- From: Ben Baltrusaitis To: Rotary motors in aircraft Sent: Tuesday, December 04, 2007 3:00 PM Subject: [FlyRotary] Water/Meth injection I have moved away from the Rotary (shame on me) and toward the Subaru. I have been researching how to get more torque and found the only way is with boost. The street Subaru guys are injecting water and methanol to avoid detonation under high boost--getting 450 hp from 2.5 liters. The methanol and water cool the charge while the methanol also?increases the octane. This allows them to run 89 or 91 octane fuel under low boost w/o injection and have high octane-high boost with injection. The injection is set to start at a certain boost pressure or rpm level. ? I am going to go this route in my aerobatic biplane so I can run on cheap fuel in econo cruise and still not detonate while doing full throttle aerobatics. ? One of the side benefits of this injection is lower EGTs--as much as 400 degrees. Has anyone done any testing with water injection to lower EGTs? ? Another benefit is much cleaner combustion chambers.?That sounds useful to me, too. ? http://forums.nasioc.com/forums/showthread.php?t=937176 ? http://www.slowboyracing.com/estore/home.php?cat=4559 ? Ben? ________________________________________________________________________ More new features than ever. Check out the new AOL Mail ! - http://o.aolcdn.com/cdn.webmail.aol.com/mailtour/aol/en-us/text.htm?ncid=aolcmp00050000000003 ----------MB_8CA0568DE526B58_80C_4E87_WEBMAIL-DC05.sysops.aol.com Content-Transfer-Encoding: 7bit Content-Type: text/html; charset="us-ascii"
Ed, intake charge cooling is fairly easily understood, but I believe Ben was talking about cooling the rotary EXHAUST. You have mentioned that the exhaust tends to melt or batter everything in front of it.
Bill Jepson


-----Original Message-----
From: Ed Anderson <eanderson@carolina.rr.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Tue, 4 Dec 2007 5:01 pm
Subject: [FlyRotary] Methods of charge cooling was Water/Meth injection

Ben, here is a URL that gives a number of different ways to cool the intake charge.  You may find it interesting
 
 
Ed
----- Original Message -----
Sent: Tuesday, December 04, 2007 3:00 PM
Subject: [FlyRotary] Water/Meth injection

I have moved away from the Rotary (shame on me) and toward the Subaru. I have been researching how to get more torque and found the only way is with boost. The street Subaru guys are injecting water and methanol to avoid detonation under high boost--getting 450 hp from 2.5 liters. The methanol and water cool the charge while the methanol also increases the octane. This allows them to run 89 or 91 octane fuel under low boost w/o injection and have high octane-high boost with injection. The injection is set to start at a certain boost pressure or rpm level.
 
I am going to go this route in my aerobatic biplane so I can run on cheap fuel in econo cruise and still not detonate while doing full throttle aerobatics.
 
One of the side benefits of this injection is lower EGTs--as much as 400 degrees. Has anyone done any testing with water injection to lower EGTs?
 
Another benefit is much cleaner combustion chambers. That sounds useful to me, too.
 
 
 
Ben 
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