Digital contact breaker and timing advance eliminator

[Bruce Plecan]

-----Original Message-----
From: HADJIASLANIS ARIS 1260 800 <aris at exmail.panafon.gr>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Friday, January 08, 1999 3:48 AM
Subject: Digital contact breaker and timing advance eliminator


>The requirements are relatively simple:
>1. Replace the existing twin contact breakers with an optical pick up
>arranged to fire every 60 degrees.

Crane Camshafts in Florida, USA, makes a universal optical ignition.

>2. Disable the original advance / retard mechanism.
>3. Feed the optical pick up output to a digital advance / retard unit
>implementing a simple, programmable advance curve capable of at least 16
>sites.

Commercially MSD, Holley make said units,  kits are available from
Australia, for a DIY.  Use the optics to trigger a oem ecm, and just
use the ignition part of that.  If you want to do a total DIY visit 332EFI,
you can get there off the diy_efi home page.

>4. Optionally add an imput for a detonation sensor to provide a few
>degrees of detonation induced retard.

If you search the archives lots of material on this.  Be sure to include
ION in your search.
Bruce

>5. The unit should just provide an output emulating a normal contact
>breaker, to drive a separate high energy electronic ignition unit
>(already fitted in my car).
>
>Your replies will be highly appreciated
>
>Regards,
>
>Aris
>