Dene If you are going to go to that much trouble with the ignition system, when there is very little faults with the original system, and a Petronics electronic update from either Summit Racing or Clark's Corvairs will eliminate any other normal failure. Modern electronic ignition systems do not just "quit" as in days gone past, if it is a quality system.
You can use an external GM crank sensor, or cam sensor, and install a 3 tiered trigger system, then have 3 GM late model capacitive coils which is what they use on the Aerovee VW engine, and trigger each one individually, hooked up to the 2 companion cylinders so that one is firing on the exhaust stroke while the other is firing on compression stroke. The only problem with that type of simple system is it is fixed timing, unless you figure out how to incorporate an ignition module. Since caps, rotors, and normal use distributor shafts don't fail in use suddenly, but rather deteriorate slowly over time, a pilot will notice they are wearing out before failure. Therefore, that is ALOT of engineering to go through for very little pay off, and will definitely hurt peak performance. Most sudden failures of ignition systems today are actually systems that have been ignored, and driven with for some time, until the vehicle will not operate any more. From my observation here, KR pilots are ALOT more conscientious and will abort takeoffs and determine the problem, instead of flying anyway, and "worry about it later" attitude. If it makes a difference I will be flying behind a single ignition system, of electronic type, and vacuum advance distributor, and expect with regular maintenance and attention to have the same reliability as I have in my driveway... Merry Christmas from our family to yours, including our "new baby boy" Zeus, a 2 pound miniature Doberman/rat terrier mix. Colin Rainey brokerpilot9...@earthlink.net
