X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.121] verified) by logan.com (CommuniGate Pro SMTP 5.2c1) with ESMTP id 2556437 for flyrotary@lancaironline.net; Tue, 04 Dec 2007 20:03:54 -0500 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.121; envelope-from=eanderson@carolina.rr.com Received: from edward2 ([24.74.103.61]) by cdptpa-omta03.mail.rr.com with SMTP id <20071205010317.INRN19167.cdptpa-omta03.mail.rr.com@edward2> for ; Wed, 5 Dec 2007 01:03:17 +0000 Message-ID: <000901c836da$660f2c60$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Methods of charge cooling was Water/Meth injection Date: Tue, 4 Dec 2007 20:01:41 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0006_01C836B0.7CE84540" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 This is a multi-part message in MIME format. ------=_NextPart_000_0006_01C836B0.7CE84540 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable 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=3Dcom_content&task=3Dview&id=3D= 24 Ed ----- Original Message -----=20 From: Ben Baltrusaitis=20 To: Rotary motors in aircraft=20 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=3D937176 http://www.slowboyracing.com/estore/home.php?cat=3D4559 Ben ------=_NextPart_000_0006_01C836B0.7CE84540 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
Ben, here is a URL that = gives a=20 number of different ways to cool the intake charge.  You may find = it=20 interesting
 
http://www.landracing.com/index.php?option=3Dcom_con= tent&task=3Dview&id=3D24
 
Ed
----- Original Message -----
From:=20 Ben=20 Baltrusaitis
Sent: Tuesday, December 04, = 2007 3:00=20 PM
Subject: [FlyRotary] Water/Meth = injection

I have moved away from the Rotary (shame on me) and toward the = Subaru. I=20 have been researching how to get more torque and found the only way is = with=20 boost. The street Subaru guys are injecting water and methanol to = avoid=20 detonation under high boost--getting 450 hp from 2.5 liters. The = methanol and=20 water cool the charge while the methanol also increases the = octane. This=20 allows them to run 89 or 91 octane fuel under low boost w/o injection = and have=20 high octane-high boost with injection. The injection is set to start = at a=20 certain boost pressure or rpm level.
 
I am going to go this route in my aerobatic biplane so I can run = on cheap=20 fuel in econo cruise and still not detonate while doing full throttle=20 aerobatics.
 
One of the side benefits of this injection is lower EGTs--as much = as 400=20 degrees. Has anyone done any testing with water injection to lower = EGTs?
 
Another benefit is much cleaner combustion chambers. That = sounds=20 useful to me, too.
 
http:/= /forums.nasioc.com/forums/showthread.php?t=3D937176
 
http://w= ww.slowboyracing.com/estore/home.php?cat=3D4559
 
Ben 
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