Quote:
Originally Posted by lsmalley
I have a Bosch ignition rotor which has resistance of 1KΩ stamped on it as. I measured the resistance of the rotor and I'm getting 1.1KΩ. Will this variation cause the car to run rough???
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The rotor on points equipped vehicles is 5k Ohm. Does that answer your question?
On CDI systems the is no resistor just a plain metal arm. Why? Heat. A CDI system will fry a 1, 5, or any other resistive rotor arm in short order.
The resistance is there to squelch the radio interference.... plus boost the spark.....coil needs to push harder to shove the electrical pulse down the system. If you use MSD coil wound ignition wires they have a 1k ohm resistance per foot IIRC.
Most OE ignition systems are crap....until we got COP.
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