FW: Electronic timing advance

[Don.F.Broadus at ucm.com]

You are right, that would be a better setup and easier to fab together. I
will see if I can bench it next month
 
Don 

> -----Original Message-----
> From:	Bruce Plecan [SMTP:nacelp at bright.net]
> Sent:	Monday, January 25, 1999 12:47 PM
> To:	diy_efi at efi332.eng.ohio-state.edu
> Subject:	Re: FW: Electronic timing advance
> 
> 
> -----Original Message-----
> From: Don.F.Broadus at ucm.com <Don.F.Broadus at ucm.com>
> Subject: RE: FW: Electronic timing advance
> 
> Now that is clever, if working with a sensor with a pipe thread a hardware
> store
> black iron coupling would be perfect so they are in the same plane.
> Bruce
> 
> 
> >I haven't tried this setup yet but see what you think of it. Since the KS
> is
> >a pizo device if a frequency is applied to it then vibrations
> >will be produced. If a plate was drilled and tapped for two KS and a
> signal
> >generator applied to one sensor and the ESC module connected to the other
> >one, I would guess you could very accurately map the range of a ESC.
> >
> >My .02$   Don
> >
> >> -----Original Message-----
> >> From: Bruce Plecan [SMTP:nacelp at bright.net]
> >> Sent: Friday, January 22, 1999 7:32 PM
> >> To: diy_efi at efi332.eng.ohio-state.edu
> >> Subject: Re: FW: Electronic timing advance
> >>
> >>
> >> -----Original Message-----
> >> From: Charles Brooks <cbrooks1 at mail.tqci.net>
> >> To: diy_efi at efi332.eng.ohio-state.edu
> <diy_efi at efi332.eng.ohio-state.edu>
> >> Date: Friday, January 22, 1999 7:36 PM
> >> Subject: Re: FW: Electronic timing advance
> >>
> >> If your running a ESC Module, they have a diagram for a DIY one at the
> GN
> >> Ttype
> >> site,  or just us a 339/any comparator to the input of the KS to the
> ecm,
> >> have
> >> it trigger a 555 as a monstable for a sec., and use it's output for a
> LED,
> >> relay
> >> etc..   Some of the GN Ttype vendors (ie ATR, I think) have an animal
> for
> >> sale.
> >>    If your car doesn't have a ks then buy a matching ESC Module, and
> >> matching knock sensor (well for gm's anyway).  and wire it up
> >> I think the bias voltage from the esc to the ecm is 7v.  Set up the
> >> comparator for 6, and then just a "filtered""real" knock will trigger
> it.
> >>   I have played mix, and match with them, and while there is some
> >> difference for those having trouble reading plugs, any thing is better
> >> than nothing.  Like I'm currently using a v-8 ks with a 231 ESC Module
> >> and for my combination it's perfect.
> >> Bruce
> >>
> >>
> >> >Do you know of any ready made gizmo's to do that? What do they trigger
> >> off
> >> of,
> >> >the sensor or the ECU? If there isn't any such animal currently what
> >> would
> >> be
> >> >the recommended trigger for a homemade job, sensor or ECU?
> >> >Charles Brooks
> >>
> >