X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-oa0-f49.google.com ([209.85.219.49] verified) by logan.com (CommuniGate Pro SMTP 6.0.1) with ESMTPS id 6010268 for flyrotary@lancaironline.net; Sun, 13 Jan 2013 15:34:51 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.219.49; envelope-from=keltro@gmail.com Received: by mail-oa0-f49.google.com with SMTP id l10so3353619oag.22 for ; Sun, 13 Jan 2013 12:34:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=or/ABzdzn1BFJmjjWhBndr0Arx35a6LtnrDw6v+k+7Q=; b=JIJ1Q6QKfgJdPAjc8FvEWZSD5bzR61e4kwPjTEgRCrbGXQcPAcY6rVZf1TieiFx+DH v3VEjzAJCQmZa66+FxBO1bP2vifwCVfK3qZxlf8y2wVAzIOn95R2TUfVWsZswzGMoPiA WR+YJ31uaz08v3mtZiHW7o1qUqWxiB7UQQHO8ZuddOGgOkWm6Wi9JNT2En49FL1j5FaQ 8exadraBeLN3Yd8l43nuaz4gxK2NCcoHlipyKNi5YdDTscfZMfFDJSoeDLkuXcMlNSF2 UVZ0YjRhJgxfLd7TSzYX60RrRZEj8IQkAbLjtjsHvVQvEW7anoIQCdZuomSn18SS6cfj tq2Q== MIME-Version: 1.0 Received: by 10.182.40.3 with SMTP id t3mr23706884obk.56.1358109257481; Sun, 13 Jan 2013 12:34:17 -0800 (PST) Received: by 10.60.99.100 with HTTP; Sun, 13 Jan 2013 12:34:17 -0800 (PST) In-Reply-To: References: Date: Sun, 13 Jan 2013 14:34:17 -0600 Message-ID: Subject: Re: [FlyRotary] Re: Hiccup From: Kelly Troyer To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=f46d04462bbedbbf0f04d33173eb --f46d04462bbedbbf0f04d33173eb Content-Type: text/plain; charset=ISO-8859-1 Bill, One more consideration..............The Magnacore wires for the Stock RX8 Renesis may not be the proper length for your installation...........Probably you will need a custom set made if you have not already figured that out !!.............<:) Kelly Troyer On Sun, Jan 13, 2013 at 1:06 PM, Ed Anderson wrote: > ** **** > Bill, I have the 8.5mm wires - seems like there was a reason (other than > price, but too long ago to remember - perhaps I could only get different > color boots on the 8.5) > > Ed > > > > *From:* Bill Bradburry > *Sent:* Sunday, January 13, 2013 12:47 PM > *To:* Rotary motors in aircraft > *Subject:* [FlyRotary] Re: Hiccup > > Ed and John,**** > > ** ** > > Do you guys have the 8.5 or the 10 MM thickness? Does it matter?**** > > ** ** > > Bill B**** > > ** ** > ------------------------------ > > *From:* **Rotary motors in aircraft** [mailto:flyrotary@lancaironline.net] > *On Behalf Of *Ed Anderson > *Sent:* Sunday, January 13, 2013 7:14 AM > *To:* **Rotary motors in aircraft** > *Subject:* [FlyRotary] Re: Hiccup**** > > ** ** > > I agree with, John. I had Magnacore make custom wires for my rotary - > cost me around $45 back then. Have flow for close to 10 years now with the > wires with no problem. I also had the boots in two different colors, one > color for leading and one for trailing. **** > > **** > > Ed**** > > ** ** > > *From:* John Slade **** > > *Sent:* Saturday, January 12, 2013 7:31 PM**** > > *To:* Rotary motors in aircraft **** > > *Subject:* [FlyRotary] Re: Hiccup**** > > ** ** > > I'd recommend paying the $85. My magnacore custom made plug leads haven't > given me a problem in 8 years. > Any way you can eliminate one possible cause is worth it. One nice thing > about Magnacore is that they will make them to specified length with > pre-installed connectors. I got mine in 2 colors. Red for leading, Black > for trailing. > > On 1/12/2013 3:18 PM, **Bill Bradburry **wrote:**** > > ** > > The Magnacore wires are fairly pricey, about $85 for the RX-8. Not that I > am cheap or anything, but does anyone have a more economical source??***** > *** > > ** ****** > > Bill B ******** > > ** ****** > ------------------------------ > > *From:* ****Rotary motors in aircraft**** [ > mailto:flyrotary@lancaironline.net ] *On > Behalf Of *Steven W. Boese > *Sent:* Saturday, January 12, 2013 1:30 PM > *To:* ****Rotary motors in aircraft**** > *Subject:* [FlyRotary] Re: Hiccup******** > > ** ****** > > I had an aftermarket tachometer on my engine test stand that would often > read twice the actual rpm. The engine stand was set up so that the power > to each of the four ignition coils could be controlled independently. The > spark plug wires were Mazda OEM. The behavior of the tach would sometimes > be affected by the combination of ignition coils that were active. In the > course of troubleshooting, it was found that the tach would consistently > read twice the actual RPM when its input wire was completely disconnected > at the tach. It was concluded that the tach was responding to signals > emitted by the spark plug wires and the doubled rpm indication was due to > triggering by the ignition signals from both rotors. Replacing the Mazda > spark plug wires with Magnecore wires from the installation in my plane > cured the tach errors. Now, however, checking the ignition timing with an > inductive timing light pickup on these wires was difficult whereas it was > not a problem with the original wires.******** > > ******** > > It should be noted that the EC2 on the engine stand never gave any > indication of having problems when either set of spark plug wires was > installed in spite of being physically located closer to the coils and > spark plug wires relative to the tach.******** > > ******** > > Steve Boese******** > > RV6A, 1986 13B NA, RD1A, EC2******** > > ******** > ------------------------------ > > *From:* ****Rotary motors in aircraft**** [flyrotary@lancaironline.net] > on behalf of Dale_R [dale.rog@gmail.com] > *Sent:* Saturday, January 12, 2013 8:04 AM > *To:* ****Rotary motors in aircraft**** > *Subject:* [FlyRotary] Re: Hiccup**** > **** > > Dunno how many people here remember when spark wire was just that: wire. > But it was electrically noisy. So it got replaced by carbon impregnated > fabric, which has rather high resistance (a cheap way to damp the "noise"). > > Another way to suppress the "noise" is to wrap the wire (many turns, > closely spaced) around an insulating core, which creates an inductive > impedance, which accomplishes the same goal but readily passes spark > current. AFAIK, "MAGNECORE" was the first to explore this method, but > several companies offer a similar product now. According to some sources, > the core material can make a large difference in the inductive > effectiveness. Therefore, I'd recommend > MAGNECORE. > > > > **** > **** > > -- ******** > > Best Regards,******** > > Dale_R (who has no financial interest in Magnecore)******** > > Cozy MKIV #497******** > > > > > On 1/12/2013 7:21 AM, ****Bill Bradburry ****wrote:******** > > Anybody have a recommendation for ignition wires for the Renesis? I > have the original Mazda wires. I checked them out yesterday and they > seemed fine, but I am still considering replacing them to see if it helps. > **** > **** > > ******** > > Bill B**** > > **** > > ** ****** > > > > ****** > > > --f46d04462bbedbbf0f04d33173eb Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable =A0Bill,
=A0 =A0One more consideration..............The Magnacore wires= for the Stock RX8 Renesis may not be
the proper length for your = installation...........Probably you will need a custom set made if you have=
not already figured that out !!.............<:)

Kelly Troyer

On Sun, Jan 13, 2013 a= t 1:06 PM, Ed Anderson <eanderson@carolina.rr.com> w= rote:
Bill, I have the 8.5mm wires - seems like there w= as a=20 reason (other than price, but too long ago to remember - perhaps I could on= ly=20 get different color boots on the 8.5)
=A0
Ed
=A0
=A0

Sent: Sunday, January 13, 2013 12:47 PM
To: Rotary motors in aircraft <= /div>
Subject: [FlyRotary] Re: Hiccup

Ed and=20 John,

=A0=

Do you guys have the=20 8.5 or the 10 MM thickness?=A0 Does it matter?<= /p>

=A0=

Bill=20 B

=A0=

Fr= om: Rotary motors in= aircraft=20 [mailto:fl= yrotary@lancaironline.net] On=20 Behalf Of Ed Anderson
Sen= t: Sunday, January 13, 2013 7:14=20 AM
To: Rotary moto= rs in aircraft
Subject: [FlyRotary] Re:=20 Hiccup=

=A0

I agree with, John.=A0 I had= =20 Magnacore make custom wires for my rotary - cost me around $45 back then.= =A0=20 Have flow for close to 10 years now with the wires with no=20 problem.=A0=A0=A0 I also had the boots in two different colors, one=20 color for leading and one for trailing.=A0=20

=A0

Ed=

=A0

Sent: Saturday,=20 January 12, 2013 7:31 PM

Subject:=20 [FlyRotary] Re: Hiccup

=A0

I'd recommend paying the $85.=A0 M= y magnacore custom=20 made plug leads haven't given me a problem in 8 years.
Any way you c= an=20 eliminate one possible cause is worth it. One nice thing about Magnacore is= that=20 they will make them to specified length with pre-installed connectors. I go= t=20 mine in 2 colors. Red for leading, Black for trailing.

On 1/12/2013 = 3:18=20 PM, Bill Bradburry=20 wrote:

The Magnacore wires=20 are fairly pricey, about $85 for the RX-8.=A0 Not that I am cheap or=20 anything, but does anyone have a more economical=20 source??

=A0

Bill B=20

=A0

From:=20 Rotary motors in=20 aircraft [mailto:flyrotary@lancaironline.net]=20 On Behalf Of Steven W.=20 Boese
Sent: Saturday, J= anuary=20 12, 2013 1:30 PM
To:=20 Rotary motors in=20 aircraft
Subject: [FlyRotary] Re:=20 Hiccup

=A0

I had an aftermarket tachometer=20 on my engine test stand that would often read twice the actual rpm.=A0 Th= e=20 engine stand was set up so that the power to each of the four ignition co= ils=20 could be controlled independently.=A0 The spark plug wires were Mazda=20 OEM.=A0 The behavior of the=A0tach would sometimes be affected by the=20 combination of ignition coils that were active.=A0 In the course of=20 troubleshooting, it was found that the=A0tach would consistently read twi= ce=20 the actual RPM when its input wire was completely disconnected at the=20 tach.=A0 It was concluded that the=A0tach was responding to signals=20 emitted by the spark plug wires and the=A0doubled rpm indication was due = to=20 triggering by=A0the ignition signals from both rotors.=A0 Replacing the= =20 Mazda spark plug wires with=A0Magnecore wires from the installation in my= =20 plane cured the=A0tach errors.=A0 Now, however,=A0checking the=20 ignition timing with an inductive timing light pickup on these=A0wires wa= s=20 difficult whereas it was not a problem with=A0the original=20 wires.

=A0

It should be noted that=20 the=A0EC2 on the engine stand never gave any indication of=A0having=20 problems when either set of spark plug wires was installed in spite of be= ing=20 physically located closer to the coils and spark plug wires=A0relative=20 to=A0the tach.

=A0

Steve=20 Boese

RV6A, 1986=A013B NA, RD1A,=20 EC2

=A0=20

From:=20 Rotary motors in=20 aircraft [flyrotary@lancaironline.net] on=20 behalf of Dale_R [dale.rog@gmail.com]
Sent: Saturday, January 12, 2013 8:04=20 AM
To: Ro= tary motors in=20 aircraft
Subject: [FlyRotary] Re:=20 Hiccup

Dunno how many people here remember = when spark wire=20 was just that: wire.=A0 But it was electrically noisy.=A0 So it got=20 replaced by carbon impregnated fabric, which has rather high resistance (= a=20 cheap way to damp the "noise").

Another way to suppress = the "noise" is=20 to wrap the wire (many turns, closely spaced) around an insulating core, = which=20 creates an inductive impedance, which accomplishes the same goal but read= ily=20 passes spark current.=A0 AFAIK, "MAGNECORE" was the first to ex= plore this=20 method, but several companies offer a similar product now.=A0 According t= o=20 some sources, the core material can make a large difference in the induct= ive=20 effectiveness.=A0 Therefore, I'd recommend=20
MAGNECORE.
=A0


<= u>
-- 
Best Regar=
ds,
Dale_R (who has no financial interest in Magnecore)
Cozy MKIV #497<=
/span>




On 1/12/2013 7:21 AM, Bill Bradburry=20 wrote:

Anybody have a=20 recommendation for ignition wires for the Renesis?=A0 I have the origin= al=20 Mazda wires.=A0 I checked them out yesterday and they seemed fine, but = I=20 am still considering replacing them to see if it=20 helps.

=A0

Bill=20 B

= =A0








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