answer to cheep advance question (ignition kit)

[Shannen Durphey]

Jeez, that's pretty expensive shipping/handling charge there.
Shannen

Stowe, Ted-SEA wrote:
> 
> I actually went to Sydney and bought one of these and brought it back to
> Seattle, it is still in the bag, I'll sell it to anyone's who is interested.
> 
> -----Original Message-----
> From: Mike Ayres [mailto:mcayres at mcmsys.com]
> Sent: Wednesday, October 28, 1998 6:07 AM
> To: diy_efi at efi332.eng.ohio-state.edu
> Subject: answer to cheep advance question
> 
> Look at http://www.picnpoke.com/projects/ignition.html
> 
> The kit looks like it will do all you ask for under $50 bucks US. Knock
> sensor input, programed avance with two options, and a tac output.
> 
> MCA
> 
> Danger  !!   you started my mind working again !
> 
> Andy  :-)
> 
> Bruce Plecan wrote:
> 
> > -----Original Message-----
> > From: am018 <am018 at post.almac.co.uk>
> > To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
> > Date: Tuesday, October 27, 1998 4:15 PM
> > Subject: Re: Re : Home-brewing an ignition advance control
> >
> > >I missed the start of this thread  -- I am pretty interested as one of
> the
> > >ideas I am kicking around at the monent is a knock retard device for
> > classic
> > >50s & 60s cars designed to run on 101 octane fuel what we called 5 star
> in
> > the
> > >UK    --- basically idea just to put  few degrees spark delay in when
> knock
> > is
> > >detected. The first part is a simple stand alone knock detector module.
> I
> > know
> > >things like this have already been done but as far as I know none is on
> the
> > >market at the moment.
> >
> > MSD, and J+S sell them.  Also could use a gm knock sensor/esc to
> > trigger a MSD multi step retard.
> > Bruce
> >
> > >Andy Macfadyen
> > >
> > >Donovan_Dibble at ittauto.com wrote:
> > >
> > >> Al,
> > >>
> > >> I've been thinking of making a similar system.  I want (am) going to
> use
> > a
> > >> PIC 1674 uP for the 'brains'.  This micro has built in A/D for MAP,
> TPS,
> > >> etc.
> > >> This will hopefully make the system more compact.  Although I haven't
> > >> worked
> > >> on it in a while, I planned on starting by collecting data from a
> > 'regular'
> > >> HEI distributor with vacuum/mechanical advance and simply implementing
> > that
> > >> strategy into the micro.  Later, the knock sensor input and associated
> > >> retard
> > >> logic would be added.  I think the easiest (or most straightforward)
> way
> > of
> > >> detecting knock will be with external op-amp filters rather than
> > >> calculating
> > >> Fourier Transforms within the micro.  Any signal conditioning would
> also
> > be
> > >> taken care of with the op-amps.  I got as far as getting the vacuum
> vs.
> > >> advance data for the HEI but haven't taken it any further.  If you or
> the
> > >> list
> > >> have any other ideas, I'd like to hear them.  Any motivational ideas
> > would
> > >> be
> > >> welcomed too :)
> > >>
> > >> Don
> > >>
> > >> >I have been pouring over the HEI 4-pin and 7-pin diagrams and info on
> > this
> > >> >page.  The amount of info that is to be found on this page is
> FANTASTIC!
> > >> I
> > >> >am trying to figure out how to make an ignition advance control for a
> GM
> > >> HEI.
> > >> >I know MSD sells one but I would like to make my own if possible.
> It's
> > a
> > >> lot
> > >> >more satisfying that way and I learn alot more.  Is this done with an
> > >> >adjustable timer IC or is it some other kind of signal conditioning.
> > >> >
> > >> >Any Ideas???
> > >> >
> > >> >Thanks for listening
> > >> >Al Ross
> > >
> > >
>