X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [129.116.87.143] (HELO MAIL01.austin.utexas.edu) by logan.com (CommuniGate Pro SMTP 5.0.6) with ESMTP id 931549 for flyrotary@lancaironline.net; Wed, 18 Jan 2006 12:21:39 -0500 Received-SPF: none receiver=logan.com; client-ip=129.116.87.143; envelope-from=mark.steitle@austin.utexas.edu X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C61C53.891DB205" Subject: RE: [FlyRotary] Re: LS1 Coil Failures Date: Wed, 18 Jan 2006 11:20:53 -0600 Message-ID: <87DBA06C9A5CB84B80439BA09D86E69E036D08C2@MAIL01.austin.utexas.edu> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [FlyRotary] Re: LS1 Coil Failures Thread-Index: AcYcUnvtiBK1KjafSZWvzh4NkrZfVgAAOD8Q From: "Mark R Steitle" To: "Rotary motors in aircraft" This is a multi-part message in MIME format. ------_=_NextPart_001_01C61C53.891DB205 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable I think I should have stopped at 12.5/second, since there's one coil per cylinder. =20 =20 Mark (Now Rusty has me correcting myself) =20 ________________________________ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Mark R Steitle Sent: Wednesday, January 18, 2006 11:12 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: LS1 Coil Failures =20 Yes, that's the beauty of a V-8. Also, 1500 rpm @ cruise would be in OD mode.=20 =20 Rechecking my math again...=20 V-8 LS1 Engine Cruise rpm - 1500 Each cyl fires once/2 rev =3D 750 firings/minute 750 Divided by 60 sec =3D 12.5 firings/second 12.5 divided by 8 cyl =3D 1.56 firings/coil/sec =20 Rotary Engine Cruise =3D 6000 rpm Each rotor fires once/rev =3D 6000 firings/rotor/minute 6000 divided by 60 sec =3D 100 firings/second/rotor =20 Rusty, please check my math. ;-) =20 That's a big difference!!! =20 =20 Mark S. =20 =20 And do you really cruise down the highway at only 1500 rpm? =20 Al G =20 =20 ------_=_NextPart_001_01C61C53.891DB205 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

I think I should have stopped at 12.5/second, since there’s one coil per cylinder. =

Mark

(Now Rusty has me correcting = myself)

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Mark R = Steitle
Sent: Wednesday, January = 18, 2006 11:12 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = LS1 Coil Failures

Yes, that’s the beauty of a V-8. Also, 1500 rpm @ cruise would be in OD mode. =

Rechecking my math again… =

V-8 LS1 = Engine

Cruise rpm – = 1500

Each cyl fires once/2 rev =3D 750 firings/minute

750 Divided by 60 sec =3D 12.5 firings/second

12.5 divided by 8 cyl =3D 1.56 firings/coil/sec

Rotary = Engine

Cruise =3D 6000 = rpm

Each rotor fires once/rev =3D 6000 firings/rotor/minute

6000 divided by 60 sec =3D 100 firings/second/rotor

Rusty, please check my math. = ;-)

That’s a big difference!!! =

Mark = S.

And do you really cruise down the highway at only = 1500 rpm?

Al G

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