MSD Box RPM Chips
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If you have an MSD Box that uses the little plug in RPM chips, or any other piece of equipment that uses the same chips, the charts below are for you. They are a compilation of the resistances that equate to various RPM levels for the fixed and the adjustable chips so you can build your own chips instead of paying lots of money for the "official" MSD ones. Officially, this is is provided for informational purposes only - I make no warranties as to it's correctness. Figuring out what RPM to use and figuring out how to mount the resistors you decide to use is up to you. If you fry your MSD box or over-rev your motor, it's not my fault. :-)

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Page last updated 01/02/2009 01:51:39 PM