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-   -   1971 911T tachometer running at half speed (http://forums.pelicanparts.com/porsche-911-technical-forum/1048830-1971-911t-tachometer-running-half-speed.html)

Mark B 01-02-2020 05:15 AM
1971 911T tachometer running at half speed
 
Hello any and all
Not sure why but my tachometer is running at what seems to be half speed, it has as long as I have owned the car (26 years) even before the mods.
Previously 1971 911T 2.2 liter
Now 3 liter (MotorMeister 300 HP race engine build kit) with dual Electromotive (crank sensor) ignitions (dual plug heads) Fun fun car now.
I ran the sensor wire proper 99% sure.
Any info would be helpful, thanks.http://forums.pelicanparts.com/uploa...1577974257.jpg

r lane 01-02-2020 11:09 AM
I would talk to Richard Clewett or people at Electromptive


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