X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao106.cox.net ([68.230.241.40] verified) by logan.com (CommuniGate Pro SMTP 5.1.10) with ESMTP id 2165438 for flyrotary@lancaironline.net; Sun, 08 Jul 2007 12:28:24 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.40; envelope-from=alventures@cox.net Received: from fed1rmimpo02.cox.net ([70.169.32.72]) by fed1rmmtao106.cox.net (InterMail vM.7.08.02.01 201-2186-121-102-20070209) with ESMTP id <20070708162745.DDN3098.fed1rmmtao106.cox.net@fed1rmimpo02.cox.net> for ; Sun, 8 Jul 2007 12:27:45 -0400 Received: from BigAl ([72.192.132.90]) by fed1rmimpo02.cox.net with bizsmtp id M4Tl1X0081xAn3c0000000; Sun, 08 Jul 2007 12:27:45 -0400 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: New subject: Pulstar Plugs Date: Sun, 8 Jul 2007 09:28:57 -0800 Message-ID: <000001c7c185$773e9630$6400a8c0@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C7C142.691B5630" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C7C142.691B5630 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable On 7/5/07, Bill Eslick wrote:=20 Even though they don't make a version for the rotary, I would like some feedback about these plugs. =20 Any experience at all out there? =20 http://www.pulstarplug.com/index.html =20 One thing is clear =96 the technical stuff on their website in nonsense. = For example, the 50 watts vs 1,000,000 watts of spark power. A Watt is a = measure of power, energy times time; a joule/sec. The coil delivers the same = amount of power whether there is a regular plug or a PulseStar plug. What the over-priced PulseStar plug does is concentrate the power to a higher voltage, shorter peak; which can have some advantage is overcoming gap resistance; but doesn=92t necessarily give better fuel burn. =20 The depiction of the pressure in the cylinder is also bogus =96 = doesn=92t represent reality in either case. =20 As someone else noted, it is very much the same as holding the wire = about =BC=94 from the plug. Back when I was a teenager I had a somewhat worn 1947 = Chevy. The worn piston rings would cause the plugs to foul. When pulling the = wires to figure out which cylinder was missing, it didn=92t take me long to = discover that the pug would fire when I held the lead a short distance off the = plug. I found that using a short length of fuel hose that fit snuggly on the = plug, and on the lead, allowed me to slip that on and maintain the gap. I = called my invention the =93gap adjuster=94. The PulseStar has a more reliable = version of the =93gap adjuster=94. =20 It is possible that it could help with the SAG issue, so someone who routinely burns avgas may have to do the test (Ed? I know you love this = kind of stuff). Maybe instead of buying the $25 ea plugs you can devise a reliable =93gap adjuster=94 and see if the SAG goes away. =20 Al ------=_NextPart_000_0001_01C7C142.691B5630 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

On = 7/5/07, Bill Eslick <wgeslick@gmail.com> wrote:

Even though they don't make a version for the = rotary, I would like some feedback about these plugs.

 

Any experience at all out = there?

 

 

One thing is clear – the = technical stuff on their website in nonsense.=A0 For example, the 50 watts vs = 1,000,000 watts of spark power. A Watt is a measure of power, energy times time; a = joule/sec.=A0 The coil delivers the same amount of power whether there is a regular plug or a = PulseStar plug. What the over-priced PulseStar plug does is concentrate the power = to a higher voltage, shorter peak; which can have some advantage is = overcoming gap resistance; but doesn’t necessarily give better fuel = burn.

 

The depiction of the pressure in = the cylinder is also bogus – doesn’t represent reality in either = case.

 

As someone else noted, it is very = much the same as holding the wire about =BC” from the plug.=A0 = Back when I was a teenager I had a somewhat worn 1947 Chevy. The worn piston rings = would cause the plugs to foul.=A0 When pulling the wires to figure out which = cylinder was missing, it didn’t take me long to discover that the pug would = fire when I held the lead a short distance off the plug.=A0 I found that using a = short length of fuel hose that fit = snuggly on the plug, and on the lead, allowed me to slip that on and maintain the gap. = I called my invention the “gap adjuster”.=A0 The PulseStar has = a more reliable version of the “gap adjuster”.

 

It is possible that it could help = with the SAG issue, so someone who routinely burns avgas may have to do the = test (Ed? I know you love this kind of stuff).=A0 Maybe instead of buying the = $25 ea plugs you can devise a reliable “gap adjuster” and see if = the SAG goes away.

 

Al

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