Date: Tue, 02 Feb 1999 06:49:35 -0800
From: Paul <rotaryeng@earthlink.net>
To: z <rotaryeng@earthlink.net>
Subject: E-shaft ignition trigger.

Neil A. Kruiswyk wrote:

Paul,

    I may have missed the point with this tread.  Why not just use the 

stock

crank angle sensor?  They don't seem to be difficult to obtain.

Neil

This will fit ANY Mazda rotary engine. Any year 12A or 13B or three
rotor.
Some early front covers may not adapt to the late E-shaft angle sensors. 
It is mounted on the flywheel and all engines have flywheels.

I don't know the going price for the stock units but judging 
what Mazda is chargeing for the ignition modules ($300 each 
and you need two) this trigger is dirt cheap as it can be made for 
under $15 if you use scrap carbon fiber for the interrupter ring.
(You could use aluminum or steel.)

What is the going price for a junk yard E-shaft angle sensor?

The other thing it has going for it is; more accurate ignition timing
and design flexibilty when it comes to Tracy's computer program.
For example: the possibilty of more than 12 holes for the RPM sensor
or more advance than 30 degrees BTDC.

It might be ahead of its time however :-)
 
Paul Lamar
 
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