You could also get (or build) a converter that will take ignition pulses
and give you a VSS signal. Do you know what the Specs are for the VSS that
your unit wants?
On Wed, Aug 15, 2012 at 8:59 AM, Brad Kahler <bkahler1@gmail.com> wrote:
> Geo,
>
> This one doesn't allow connecting to the ignition coil as a speed source
> either. It seems that all of them on the market now require a VSS signal,
> pulse generator in the speedo cable or else magnets on the drive shaft.
>
> Also the one you've listed is a vacuum unit and I prefer the electric servo
> type.
>
> I installed an SCS/Frigette cruise control with electric servo unit on my
> Spitfire back in 1998 and it worked great. Bud Rolofson then installed one
> on his TR6 and it's been working great all these years. Now that I want to
> install one in my TR4 they don't make the style that will sense speed from
> the ignition coil.
>
> The two simplest options are a VSS in the speedometer cable or the magnets
> on the drive shaft. I haven't given up on the speedometer cable option
> just yet, still a few more places to check with. Barring that I'll
> probably end up with the magnets on the drive shaft.
>
> Thanks,
>
> Brad
>
>
>
>
> On Wed, Aug 15, 2012 at 9:50 AM, Geo Hahn <ahwahneetr@gmail.com> wrote:
>
> > On Tue, Aug 14, 2012 at 7:18 PM, Brad Kahler <bkahler1@gmail.com> wrote:
> >
> >> ...I've been looking at
> >> other brands but so far the only ones I've found all require some sort
> of
> >> VSS and don't allow connecting to the coil.
> >>
> >
> >
> > I know some who are using this unit (on VWs):
> >
> > http://www.murphskits.com/catalog/product_info.php?products_id=422
> >
> > Basically a clone of the old (low-tech) Audiovox CC which I have used on
> > my VW for 20+ years and 2 other cars before that (same unit moved from
> > car-to-car).
> >
> > Never put it on a TR but see no reason why it wouldn't suit.
> > Geo
>
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