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-   -   CDI vs Inductive Ignition Systems (http://forums.pelicanparts.com/911-engine-rebuilding-forum/1093155-cdi-vs-inductive-ignition-systems.html)

mysocal911 06-04-2021 06:46 PM

Quote:

Originally Posted by 304065 (Post 11343424)
Fun thread and I like how you folks are staying away from ad hominem attacks. As I say on the opening post of this forum, this is a forum for exchange of information, and naturally some people hold passionate views. And none is so sacred that it cannot be respectfully challenged with data.

Since we appear to have more than one electrical engineer here, I wonder if you have any comment on this old thread, where I attempted to quantify the extent to which ignition energy from an inductive system declines as RPM increases, and how that changed with transistorized ignition and low-resistance, low-impedance coils.

http://forums.pelicanparts.com/porsche-911-technical-forum/640218-crane-xr700-capacitive-discharge.html

Not to hijack but maybe some people might find it interesting.

Your graph and post #3 provide very good explanations.

Jonny H 06-06-2021 11:45 AM

Quote:

Originally Posted by mysocal911 (Post 11353086)

Last used on the '83 911SC.

No. All Porsche engines beginning with '84 911 3.2 used

You forgot the 930 Turbo which used CDI until 1989.


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