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

   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
           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

   On Pertronix website in the description of the Second Strike ignition just to the right of the photo of the unit it describes; "after the initial spark there is a very powerful second Capacitive Discharge spark".

   Dale Davies

   That is interesting. What is the link for that web site?

   Paul Lamar

http://shop.pertronix.com/pertronix-500-second-strike-igniton-box.html#.WZrHAhmp6BY

Steve Carlisle


It is not going to work. The first and essential spark is the old fashioned inductive.

Paul Lamar


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