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== This page collects links to suppliers and specifications for possible DIY made Ignition Transformers Coil On Plug(COP) == The transformer is brought closer to the plug to prevent capacitive/inductive losses and reduce noise emission. Metallically shielded like those used by http://www.adrenalineresearch.com/race.htm might be a good idea. Also how about coreless (like used by the Tesla Coil crowd just smaller) to be able to use higher frequency and avoid core losses and saturation. This way we may be able to get an impressive spark just by using an actively driven alternating field (++AC Spark++) I know that separates this idea from the alternative suggestion to use a ++DC Spark++ (Other half killed with HV Diode) but once ignited use high DC Current from a Discharge capacitor over the Diodes to create plasma. This is the place to discus these approaches: ==Coil On Plug List== We like to know specifications, cost and availability: ---- Diamond-Electronics make onplug coils wich can (be supplied)/work with IonSense sensing (Output). http://www.diamond-us.com/Pages/Products/FrameProduct.html Has anyone talked to Diamond about pricing and minimums on their FL0151 or F-722 COP designs? ---- http://www.bilset.org/coil.html says they can even do custom request COP ---- '''Looking for specs''' http://69.0.158.19/live/F300036729BOS.JPG '''known stuff''' * Bosch Ignition Coil (F3000-36729) * or Bosch 0221504410, says "TCI ignitions", * the coil has 3 pins. * factory coils for BMW .... (which engine exactly? ) * BMW 540i Ignition Coil, Engine: M60 Unknown: * pinout and driver inside or not ** active, requiring logic-level signal (in this case it's not IonSense compatible: GND, +12V and control pin) ** or passive coil, requiring power signal (if so, it might be IonSense compatible: coil-, +12V and secondary side return pin) * connections here: * http://forums.audiworld.com/a4/msgs/1594531.phtml * dwell * price: about $61.19 * availability: http://www.autopartswarehouse.com/mmp/bmw~540i~ignition_coil~parts.html
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