Sometimes I learn things when I'm just surfing the net. It doesn't surprise me that this idea has been done but I didn't know it existed until today when browsing stuff for classic 911's. You can have a rev limiting distributor using old school tech. The rotor has a counterweight built into the contact between the coil and the spark plug. Centrifugal force will eventually overpower a spring and cut out the ignition. They make these with various limits in 100 RPM increments. I wonder if anyone has tried to install one in an Opel? I'm sure some of you guys knew about these rotors.
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