Perma-Tune Coil Resistance Spec

[Beige74Carrera]

Does anyone know the primary and secondary coil resistance specs for a Perma-Tune SC010 ignition coil?

According to my Porsche shop manual, factory coils are primary 0.4 ohms to 0.6 ohms and secondary 650 ohms to 790 ohms.

My Perma-Tune coil measures 0.9 ohms on the primary side and 9.8k ohms on the secondary.

Is this good or bad?

Thanks,
Tony

[Beige74Carrera]

Does anyone have one of these coils they would be willing to measure and share their results?

Thanks!

Link: Zim's Autotechnik Perma-Tune Coil, 911 69-83/930 76-89

[IMG]http://www.***********/acatalog/901.602.502.00.pt.jpg[/IMG]

[Perma-Tune]

Those specs are correct for the Perma-Tune coil which are different from the Bosch coils. That is why we do not recommend using the Perma-Tune coil with the Bosch ignition box.

Also check for oil leaking out of the coil.

Resistance is not the most reliable way to check the coil. A megger or a distributor machine is the best way to test any ignition coil.

[Manipou]

What will happen if you use the Perma-Tune coil with the original CDi box?