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Bill,
Something else to consider is that
inductive core wires are kind of delecate inside and that forcing them
into a wire loom that is not made for them can damage the delicate coil of
wire inside. All these detail are anoying.
Robert
----- Original Message -----
Sent: Sunday, January 13, 2013 5:30
PM
Subject: [FlyRotary] Re: Hiccup
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)
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.
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
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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