Quote:
fred kanter wrote:
Rusty,
What was the problem with the 47 356 that the Ford ignition fixed?? I have driven 100,000 miles in 356's and have sold parts for thousands of them, never encountered any inherent problems. The Autolite system proved ultrarealiable in millions of cars
For sure electronic ignition is more reliable, it can be computer controlled in numerous parameters and in an engine designed for it, yields lower emissions. None of these are benefits that can be obtained, I believe, in an older engine which was designed for points ignition.
I do not think that old fashioned vacuum advance/points/condenser ignition would be viable on a modern engine
I never had a problem with a 47 356 because I never had a 47 356.
I did have a problem with a 1975 Porsche 911. The problem was, the engine would not run. The reason it would not run, was that the ignition did not work. The ignition did not work because the electronic module was burned out.
Instead of buying an aftermarket module for $400, or a Porsche module for God knows how much, I used a Ford module. The Ford module actually produces a hotter spark than the Porsche module, and I assume will be at least as reliable. It is also small enough to fit conveniently into the engine compartment which an MSD module won't.
Hope this is clear.
One more thing I would like to add. The idea of opening up the spark plug gap with electronic ignition is a good one. I did it on the Porsche. Just don't go too far or you might cause a cross fire inside the distributor cap.
If you examine the cap off an electronic ignition car, you will see it is bigger (as on GMs) or had added ridges on the inside for extra isolation. This is prevent the spark from jumping to the wrong wire.
You may be able to find such a cap to fit your distributor but if you can't, don't go overboard on the spark plug gap.
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