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Re: Digital RPM meter.
At 09:19 AM 2/6/97 +0000, you wrote:
>
>Hi all.
>
>I'm building a digital RPM meter. Easy stuff for me, but I need to
>know where exacly is the frequency at which the engine revs.
>
>Would it be the primary of the coil? Or the hall sender? Please
>help.
>
>If anybody done this, maybe we can exchange ideas/experiences.
>
>Frank
I would think that off the primary you would get 1 pulse each time
the plug fires and therefore each time the motor turns one revolution.
Because with each revolution one of the cylinders will be firing. I am
quite positive there are no "dead turns" with the VW 4 cylinders.
DOM!
1980 VW Scirocco S
1983 Alfa Romeo GTV-6
1986 Kawasaki 600 Ninja
1979 Piaggio Vespa
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