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Solid core Vs resistive wires and plugs.

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frank(at)orionite.com
Guest

Posted: Fri Aug 07, 2009 1:14 pm Post subject: Solid core Vs resistive wires and plugs.

Mark,



Good points, all.



FWIW



There are too many variables to try and account for the results other people

are getting. We have no control over what they are doing so we need to get

back to basics.



The ORIGINAL design was for the coils to drive a solid wire to a

non-resistive plug. This is to get maximum spark energy to the plugs.



So then if you are using the original coils (magnetos) and swap the wires

and plugs for something else those plugs and wires need to be solid core

wires and non-resistive plugs.



Original equipment magnetos are not known for their spark energy so

you needed a non-resistive path to achieve full spark energy. If you use

resistive wires and/or resistive plugs you are reducing spark energy below

what is already considered a weak spark (by today's standards).



Resistive plugs and wires were developed to reduce EMI without increasing

expense i.a. it would have been expensive to use a shielded system like we

have on aircraft in every passenger car. The coils in passenger cars are 

more

powerful than our magnetos so they could get away with doing this.



One of the only vehicles I know of that was produced with solid core wires

was a Corvette and it used shielded wires and a shielded distributor.



The braid around our wires is an EMI shield. The braid is designed to shield

RF emissions. It's sometimes called a Faraday Cage. Solid core wire, non

resistive plugs and shielding was and is the original design for aircraft

ignition systems manufactured by the Russians, Chinese and Americans.



If the original installed ignition system isn't working (is not enough to

suppress radio interference) we need to look for where RF energy is leaking

from. Maybe you have large gaps in the braid, broken braid or braid that is

not grounded on both ends.



We should not be using resistive wires and resistive plugs with the weak

spark energy being produced by original equipment Russian and Chinese mags.



Frank

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jimscjs(at)mbay.net
Guest

Posted: Fri Aug 07, 2009 2:10 pm Post subject: Solid core Vs resistive wires and plugs.

Frank



Good response, and how are you feeling, Salinas is real slow so far today, 

but hope it will get busy tonight and the weekend.

Jim

---

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pfstelwagon(at)earthlink.
Guest

Posted: Fri Aug 07, 2009 2:53 pm Post subject: Solid core Vs resistive wires and plugs.

Jim,



That wasn't me.  I feel a little better just got up  3:00 Pm.  At least the 

room isn't going around but I feel like crap.



Frank

---

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crichka(at)hotmail.com
Guest

Posted: Sun Aug 09, 2009 8:19 pm Post subject: Solid core Vs resistive wires and plugs.

Frank C

first time someone with engineering knowledge.



I'd like to add that 8mm. wire does not help on a low voltage magneto C The Russian system was built to work and most mods. are unnecessary.



     



Chanock 

Born to fly C Forced to work



[quote] From: jimscjs(at)mbay.net

 To: yak-list(at)matronics.com

 Subject: Re: Solid core Vs resistive wires and plugs.

 Date: Fri C 7 Aug 2009 14:46:38 -0700

 

 --> Yak-List message posted by: "Jim" <jimscjs(at)mbay.net>

 

 Frank

 

 Good response C and how are you feeling C Salinas is real slow so far today C 

 but hope it will get busy tonight and the weekend.

 Jim

 ---

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