Often people confuse the terms electronic ignition and CD ignition. Most of the non-digital automotive ignitions (GM's HEI, Chrysler, AMC/Prestolite, Ford Dura-Spark) were inductive types, not CD. These all have longer duration arc-over than CD offers, and are multi-strike to some extent.
The early aftermarket "transistorized" ignitions (Delta Mk 10 was a favorite for racers in the late '60s) were designed to work with points, if you find one.
I recently replaced the NLA electronic ignition on a Tecumseh 12hp flathead single in a garden tractor with a Chrysler ignition that had sat on my shelf since the mid-'70s (I'd bought two intending to adapt them to an alky motor). This was the NASCAR blue box, lah di dah! Whatever, I formed a piece of sheet steel and mounted the amplifier, ballast, and automotive coil to it, and wired it into the tractor. When I first spun the engine over with the sparkplug out and grounded, I got BIG FAT BLUE SPARKS, that you could see in broad daylight from six feet away!! Fun!
The early aftermarket "transistorized" ignitions (Delta Mk 10 was a favorite for racers in the late '60s) were designed to work with points, if you find one.
I recently replaced the NLA electronic ignition on a Tecumseh 12hp flathead single in a garden tractor with a Chrysler ignition that had sat on my shelf since the mid-'70s (I'd bought two intending to adapt them to an alky motor). This was the NASCAR blue box, lah di dah! Whatever, I formed a piece of sheet steel and mounted the amplifier, ballast, and automotive coil to it, and wired it into the tractor. When I first spun the engine over with the sparkplug out and grounded, I got BIG FAT BLUE SPARKS, that you could see in broad daylight from six feet away!! Fun!
Comment