X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fmailhost01.isp.att.net ([204.127.217.101] verified) by logan.com (CommuniGate Pro SMTP 6.0.1) with ESMTP id 6010404 for flyrotary@lancaironline.net; Sun, 13 Jan 2013 18:31:08 -0500 Received-SPF: none receiver=logan.com; client-ip=204.127.217.101; envelope-from=bbradburry@bellsouth.net Received: from desktop (adsl-98-85-189-34.mco.bellsouth.net[98.85.189.34]) by isp.att.net (frfwmhc01) with SMTP id <20130113233033H0100ir9bke>; Sun, 13 Jan 2013 23:30:33 +0000 X-Originating-IP: [98.85.189.34] From: "Bill Bradburry" To: "'Rotary motors in aircraft'" References: In-Reply-To: Subject: RE: [FlyRotary] Re: Hiccup Date: Sun, 13 Jan 2013 18:30:34 -0500 Message-ID: <3133DA7D98BB4290B9C905D9610C523D@Desktop> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_002A_01CDF1BC.13D2CC20" X-Mailer: Microsoft Office Outlook 11 Thread-Index: Ac3xzXIw2nNpBS+dQ8SvX6AerW68JQAF93gA X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6002.18463 This is a multi-part message in MIME format. ------=_NextPart_000_002A_01CDF1BC.13D2CC20 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Kelly, I was lucky enough to mount the coils just the right distance from the plugs and I am now using the stock RX-8 wires, so if they fit the RX-8, they will fit my installation. Thanks, Ed. I was going to go with the 8.5 if no one came up with a reason for the thicker ones. The stock wires are 7mm, and it is pretty hard to get them into the wire loom, so I will probably need to get a larger loom for either one. I will try it first. Bill B _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Kelly Troyer Sent: Sunday, January 13, 2013 3:34 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Hiccup 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 ------=_NextPart_000_002A_01CDF1BC.13D2CC20 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

Kelly,

 

I was lucky enough to mount the = coils just the right distance from the plugs and I am now using the stock RX-8 = wires, so if they fit the RX-8, they will fit my = installation.

 

Thanks, Ed.  I was going to go = with the 8.5 if no one came up with a reason for the thicker ones.  The = stock wires are 7mm, and it is pretty hard to get them into the wire loom, so = I will probably need to get a larger loom for either one.  I will try it = first.

 

Bill B

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Kelly Troyer
Sent: Sunday, January 13, = 2013 3:34 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = Hiccup

 

 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 <eanderson@carolina.rr.com> 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

 

 

 

Sent: Sunday, January 13, 2013 12:47 PM

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

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

 

 

 



 

 

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