X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-bk0-f52.google.com ([209.85.214.52] verified) by logan.com (CommuniGate Pro SMTP 6.0c2) with ESMTPS id 5802145 for flyrotary@lancaironline.net; Tue, 09 Oct 2012 03:51:21 -0400 Received-SPF: none receiver=logan.com; client-ip=209.85.214.52; envelope-from=andrew@martinag.com.au Received: by mail-bk0-f52.google.com with SMTP id j10so1875116bkw.25 for ; Tue, 09 Oct 2012 00:50:44 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=mime-version:x-originating-ip:in-reply-to:references:date :message-id:subject:from:to:content-type:x-gm-message-state; bh=YxFKeSlTk8Ig6ltAjdiiu0TNIRBabYbTqWiOxQlA0BI=; b=hmNW33vJFdF1ys4WiArrrtUqmTVulGMkuEgH8/9Lr58WJ1A2634QDpThEwd94RKOxs B1vSQeA0sygH35BUyGc76mxmpDLQt4d+tejcAvTLXHoc6oEVlfFtnbC2ew89DpdlmMI5 CMtvpEwfR2yQ8u3kCQIDE43WhuDk1OZJKvoPWY7CvCC6Rgf1EJcj0YJRu2kPqBxdTi1a jSVwDpz14gmeuY1FR8yPOKju/OycY87irNRImWxPkZ38zv3BYJPwwf3rvcqkXJ932z3H PGgg/XYggKQAwbZK9kBtFrs5mtDEZMtIaQhnUuAxT145igMukoQxaCsfHUAa5vEsMorZ kGzg== MIME-Version: 1.0 Received: by 10.205.122.137 with SMTP id gg9mr6318244bkc.34.1349769043711; Tue, 09 Oct 2012 00:50:43 -0700 (PDT) Received: by 10.204.34.204 with HTTP; Tue, 9 Oct 2012 00:50:43 -0700 (PDT) X-Originating-IP: [202.40.0.40] In-Reply-To: References: Date: Tue, 9 Oct 2012 15:50:43 +0800 Message-ID: Subject: Re: [FlyRotary] Re: Heat ranges From: Andrew Martin To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=000e0cdf486461184d04cb9b98df X-Gm-Message-State: ALoCoQmJuLHIOyjJ0O0+J2WRYZYlY7kRvGEJ5KwYyEOfmsBLesZRAe9Kl3p2Cw9KjrrXW+inYsct --000e0cdf486461184d04cb9b98df Content-Type: text/plain; charset=ISO-8859-1 Neil SAG = sparkplug attention getter, generally causes one to ingest the seat cushion with your nether region! plenty in the archives about it, invented I believe by Ed Anderson. Apart from the missus car and a bike, everything on my farm is diesel also. so you should have seen the look of surprise I had when first starting this engine with built in electric fence energizer powering it. I swear I only had my finger on the starter for about a second before it roared to life. SAG is basically the same as something shorting out the fence, basically electric doesn't get to where its needed. We may have to have a friend in US to source the racing plugs, about $150.00 a set of 4 NGK R6725's in Aus. Andrew On Tue, Oct 9, 2012 at 1:39 PM, Neil Unger wrote: > Could someone inform this ignorant peasant as to just what SAG is > actually. I can only gather it is something nasty. I am more at home with > diesels. Neil. > > *From:* Lehanover@aol.com > *Sent:* Tuesday, October 09, 2012 3:39 PM > *To:* Rotary motors in aircraft > *Subject:* [FlyRotary] Heat ranges > > > I hate to keep beating this drum, but if you can walk into an Autozone and > buy it, you shouldn't. > The heat range is too high. Street plugs have nose temps high enough to > keep crap burned off at idle speed and 2,000 RPM light throttle. Once you > are at WOT for more than a few minutes that street plug is too hot. You get > cement boil around the center post. You manufacture a glow plug and loose > control of ignition advance. > > The NGK dash 10s are closer to ideal. the dash 11.5 is what racers use. > Crosses to the dash 10s are also used in racing. Cheaper racers use > Autolite AR2592. Special order from your friendly parts house. The last > ones I bought were $7.00 for 4 plugs. Next day delivery. If you live near a > circle track they may stock a few boxes. Air cooled dirt bikes use similar > heat ranges. > > Use inductive plug wires to kill off radio noise. Keep plug wires as short > as is possible. Plug wires must touch nothing that is grounded. > > Lynn E. Hanover > Incinerating rotary > engines since 1980. > > In a message dated 10/8/2012 10:26:43 A.M. Eastern Daylight Time, > echristley@att.net writes: > > David, > > Thank you for the compliment. > > I have installed a set of the -10 spark plugs and at this point they are > long past the time where the stock plugs normally needed to be replaced. > How long they will continue to work is unknown, but at least that one data > point is consistent with the study and encouraging. > > > -- Regards Andrew Martin +61 0427477144 +61 8 6365 5648 +61 8 9924 1145 andrew@martinag.com.au --000e0cdf486461184d04cb9b98df Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Neil

SAG =3D sparkplug attention getter, generally causes one to ing= est the seat cushion with your nether region!
plenty in the archives abo= ut it, invented I believe by Ed Anderson.

Apart from the missus car = and a bike, everything on my farm is diesel also. so you should have seen t= he look of surprise I had when first starting this engine with built in ele= ctric fence energizer powering it. I swear I only had my finger on the star= ter for about a second before it roared to life.
SAG is basically the same as something shorting out the fence, basically el= ectric doesn't get to where its needed.

We may have to have a fr= iend in US to source the racing plugs, about $150.00 a set of 4 NGK R6725&#= 39;s in Aus.

Andrew

On Tue, Oct 9, 2012 at 1:39 PM= , Neil Unger <neil.unger@bigpond.com> wrote:
Could someone inform this ignorant peasant as to just what SAG is actu= ally.=20 I can only gather it is something nasty. I am more at home with diesels.=A0= =20 Neil.
=A0
Sent: Tuesday, October 09, 2012 3:39 PM
To: Rotary motors in aircraft <= /div>
Subject: [FlyRotary] Heat ranges
=A0
=A0=20
I hate to keep beating this drum, but if you can walk into an Autozone= and=20 buy it, you shouldn't.
The heat range is too high. Street plugs have nose temps high enough t= o=20 keep crap burned off at idle speed and 2,000 RPM light throttle. Once you a= re at=20 WOT for more than a few minutes that street plug is too hot. You get cement= boil=20 around the center post. You manufacture a glow plug and loose control of=20 ignition advance.
=A0
The NGK dash 10s are closer to ideal. the dash 11.5 is what racers use= .=20 Crosses to the dash 10s are also used in racing. Cheaper racers use Autolit= e=20 AR2592. Special order from your friendly parts house. The last ones I bough= t=20 were $7.00 for 4 plugs. Next day delivery. If you live near a circle track = they=20 may stock a few boxes. Air cooled dirt bikes use similar heat ranges.
=A0
Use inductive plug wires to kill off radio noise. Keep plug wires as s= hort=20 as is possible. Plug wires must touch nothing that is grounded.
=A0
Lynn E. Hanover
Incinerating rotary
engines since 1980.



--
Regards

Andrew M= artin

+61 0427477144
+61 8 6365 5648
+61 8 992= 4 1145
andrew@martinag= .com.au




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