This may be an equivalent to the Summit unit, may have better
    quality control!

    https://www.summitracing.com/int/parts/maa-6852m/overview/ <https://www.summitracing.com/int/parts/maa-6852m/overview/>

    Steve Carlisle


    The specs are much better.

    Less current per 1000 RPM.

    Works down to six volts. Thats great.

    I cannot find a cost however.


    Paul Lamar



https://www.holley.com/products/ignition/ignition_boxes/parts/6852M <https://www.holley.com/products/ignition/ignition_boxes/parts/6852M>

   About $120

   Gary Knutson


   Thanks Garry.

   Looking good. Good docs. Attached.

   Paul Lamar

Pertronix CD has multi spark through the rev range.

Dale Davies

It does not claim to be a CD.
There for dwell calculations may be required.
BTW Dwell is built in to the old point type distributors.
It was possible to adjust the dwell over a limited range.

If you keep the points closed longer you increased the dwell.

If we wanted to use an optical crank angle sensor we could
simulate the old points type distributors. The plate would
be slotted. The length of the slot would be the dwell time.
At low RPM the dwell would be longer which is basically
undesirable.. Same as a distributor.

Paul Lamar


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