Electronic timing advance

[Bruce Plecan]

-----Original Message-----
From: HADJIASLANIS ARIS 1260 800 <aris at exmail.panafon.gr>
To: diy_efi at esl.eng.ohio-state.edu <diy_efi at esl.eng.ohio-state.edu>
Date: Saturday, January 09, 1999 5:29 PM
Subject: Electronic timing advance


>Matt, Bruce & Robert thank you very much. I will use your interesting
>inputs to begin assembling a viable solution to my DINO engine problem.
>I guess I will start looking for the web sites of Allison, Crane
>Camshafts, Holley & MSD.
>
>Bruce, can you pls provide info about the Australian DIY kits you
>mention in your reply.

Company names as I recall were Jaycar, and Dick Smith Electronics.
I thought I had more info at hand, but had a HDD crash and lost more
than I thought.  May also, be a Mark Williams Electronics, maybe some from
au has a fresher memory of them or their sites.
Bruce

Concerning the diy_efi web page and project
>332EFI, I am aware of it but at this instant I have too litlle time to
>get involved so deeply!
>
>Regards
>
>Aris
> ----------
>From: Matt Beaubien
>To: diy_efi at esl.eng.ohio-state.edu
>Subject: Electronic timing advance
>Date: 08 January 1999 23:28
>
>Bruce,
>
>> >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.
>
>The Accel 49340 (IIRC) allows what the orginal poster is looking for. It
>has adjustable vacuum/boost advance/retard as well as a N20 input. It
>may
>require a magnetic reluctor-type signal to function though.
>
>I don't think MSD makes something similar (you can only adjust the slope
>and max advance as far as I know), and I'm not too familiar with the
>Holley stuff. The Accel piece is ~$150-$200.
>
>Hope that helps.
>
>Matt.
>
>