Mailing List flyrotary@lancaironline.net Message #26365
From: <WRJJRS@aol.com>
Subject: Re: [FlyRotary] Re: Another great flying day,CDI iginition.
Date: Tue, 6 Sep 2005 03:07:19 EDT
To: <flyrotary@lancaironline.net>
In a message dated 9/5/2005 8:42:13 AM Pacific Standard Time, canarder@frontiernet.net writes:
<... very small plug gap can help the problem. I use .010" to .012" on
both ...>
Wouldn't using hotter plugs help?  Wouldn't that "burn" the lead
deposits off?  How about CD ignition?  doesn't that have a really short
rise time?
There's gotta' be a better way than changing plugs more often than oil
... Jim S.
Jim, There are many different typs of CD ignition, but the prevailing problem for many is the opposite of standard style systems. Super-fast rise time; but super-short duration! Many CD systems require a LARGE gap simply to be sure the spark might hit something and get the fire started. Multi-spark discharge systems are usually CD of some sort. If not the coil current required is super high OR a dc to dc voltage stepup system is required to allow the coil to fire multiple times per ignition event. I am supprised Lynn could run such a small gap with success. Lynn was that small gap WITH a MSD system?
Bill Jepson
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