Quote:
Originally Posted by Mr.P 911T 1970
Thanks, Dave. Appreciate the values and will certainly use these over the next couple of weeks. The biggest take away from the articles you and Thomas provide and lends creditability to Bob, is that the MSD 8222 is acceptable replacement when it comes to reliability and as a "suitable" replacement for Bosch-Black; performance isn't really gained above what Porsche originally intend. I'm getting a longer spark, weaker current.
I'm running NGK5 series spark plugs- would a larger gap support this longer, weaker current. It seems ok now.
Do you or anyone know of a secret hiding spot for the Bosch transformers - the black ones, made in Spain or Germany?
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Can you please describe how you determined/measured (scope/current probe) the "weaker current", as indicated in the above post? Thanks
Yes, the MSD 8222 is a good replacement for the original small Bosch black coil. As linked to in post #6 (maybe missed it), here're the coil's parameters;
MSD Blaster (8222) - R(primary) = 1.1 ohms, R(secondary) = 4700 ohms, N = 95, L(primary) = 4.2 mH, L(secondary) = 38 H