Reply to "MSD and tachs again"

lastpushbutton (Guest)

I have burned up 3 8920"s I have been using the purple wire to feed the tach from the 8920. I have given up... The first one worked for 3 months. the n burned, the 2nd worked for a week, n burned. The 3rd on burned when I hooked it up thriugh a relay direct from battery. MSD told me that low voltage would kill the 8920 that is why I used it to flip the relay and keep the unit away from he load of the tach. BE CAREFUL and use a small fuse on any power connection. Please let me know if you can pull it off...Guessing RPM in 1362..

5/5/052:59 PM

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