Mount it on a heat sink near the fan- - -even on a hot-running engine there should be a little safety margin at 180+ degrees, and if a stovebolt engine ever gets that hot the average forum member with lace on his drawers will call 911 because his blood pressure is spiking- - - -the engine won't care!

What about the flywheel time on subsequent charge/discharge cycles? Condenser operation is not a one-time thing- - - -it repeatedly charges and discharges as the induced voltage in the primary winding from the coil firing must be dissipated by cycling from the insulated side of the condenser to ground and back while the points are opening and closing. Can the capacitor you're recommending be charged from either side of the dielectric?
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
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