HEI timing jump

[Clare Snyder]

Matt Beaubien wrote:
> 
> Hi all,
> 
> There was some discussion a little while ago about how certain HEI modules
> will suddenly advance the timing when not connected to the ECM. I would like
> to use a couple of these on a motorcycle engine that has a missing timing
> box. It has two Hall-effect  pickups and a coil pack. I could just use a
> standard module but the thing would be hard to start with the proper amount
> of advance.
> 
> My question is what module do I need exactly? A couple were mentioned but
> I'm not sure which I need. Also, how does it get wired?
> 
> Thanks.
> 
> Matt Beaubien
> mbeaubie at gpu.srv.ualberta.ca
> 3 x 510's
> 1 x 300ZXT
> 1 x Civic 1200
>From what I figured out, will not give you advance with hall sensors as
they are strictly a switch. The advance appears to be a result of the
"trigger voltage" being reached more quickly at higher rotational
speeds.
Sorry the news is not better.
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