Mailing List flyrotary@lancaironline.net Message #39711
From: <Lehanover@aol.com>
Subject: Re: Crank triggered ignition.
Date: Fri, 5 Oct 2007 09:16:48 EDT
To: <flyrotary@lancaironline.net>
In a message dated 10/5/2007 1:52:41 A.M. Eastern Daylight Time, Lehanover writes:
How to adjust the timing with those components?

Lehanover@aol.com wrote:
In a message dated 10/3/2007 9:56:25 P.M. Eastern Daylight Time, paul_peterson@iesc.net writes:
I need to convert the Corvair engine to a Distributorless Ignition
System (DIS) and need an RWS EC2.
Or, a single reluctor on the front pulley, three Chrysler pickups, three Chrysler amplifiers and three double ended coils.
 
 
Lynn E. Hanover
 
There is usually no need to have a variable ignition curve in most cases. As for initial timing, The mounts I made for the pickups allows for very accurate timing. My Fiat would start with 35 degrees of advance and 14:1 compression, so it is likely that a Corvair would start up just fine. Years ago I built a few Corvairs,
but do not remember what total advance they run. Do you have that? You should avoid rapid moves to full throttle from idle, however.
 
If you need to remove the distributor was for clearance under the cowl, you could run just the body of a smaller distributor, or the stock one without the cap. Saw off the upper half of the cap and epoxy on a flat plastic cover. Mount three pickups inside on the advance plate and press on a Chrysler reluctor (about 5 dollars) with all but one blade ground off. This would maintain the mechanical advance feature.
 
You could also run the stock or a smaller distributor direct from the crank, with one reluctor and three pickups. And keep the mechanical advance. Or with a bock of aluminum to hold a bearing set, run a distributor along side the engine with a toothed belt with a 1:2 ratio, and keep the mechanical and vacuum advance systems. 
 
You can dummy up any of these for cheap. The Chrysler (Dodge Plymouth) amplifiers are about $25.00 each.
 
My visualization skills are sliding away so you will want to review this extensively.
 
Lynn E. Hanover




See what's new at AOL.com and Make AOL Your Homepage.
Subscribe (FEED) Subscribe (DIGEST) Subscribe (INDEX) Unsubscribe Mail to Listmaster