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Paul Lamar

The fundamental problem is a one rotor fires once per revolution
and has one main coil while the equivalent two cylinder four
stroke piston engine has two main coils that fire every other
revolution. That means a rotary running at 6000 RPM continuously
is equivalent, as far as the coils are concerned, to a four stroke
piston engine engine running at 12,000 RPM continuously. It is
amazing the Denso LS1 coils are as durable as they are.

From this you can see the problem. We need a bench set up so
we can test coils for heat rise while firing  at a continuous
6000 times a minute. Perhaps we should contact MSD and see if
they have something.

Seem like the old 2nd gen coils were more reliable.

Paul Lamar ...No rotor no motor.

Outlander here,

I have built the 555 pulse generator and will pick up the coils tomorrow.
Start testing Thursday. I'll get your photographs tomorrow also.

Ian RV7

From the looks of the placement of the heat sinks
in the pictures Bob sent there is some sort of solid state
device  in there that is failing. Also looks like a good place
to measure the temp rise.

Paul Lamar ...No rotor no motor.

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