Quote:
Originally Posted by davids2toys
In addition, I plan to run the MSD box POS and NEG wire directly to the battery per the MSD tech department. They do not like those wires running to the frame or to the positive relay on the firewall which is my present setup. What do you or Patrick think of that?
Dave
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The MSD hot lead should run directly to the master circuit breaker next to the starter solenoid. The MSD negative lead should run to wherever your negative battery cable terminates. For example, on my car that is the passenger side cylinder head just across from the firewall. Regarding your grounding, ERA has a single black wire that is running from the passenger side cylinder head, where the negative battery cable is often attached, to the firewall. Many of us supplement the standard ERA grounding because the fans, headlights, and taillights all take their ground from the frame. That means all electrons must either go through that one little black wire, or find their way back home via some other way, such as motor mounts, emergency brake cables, etc. What I have on my car is a supplementary 4 gauge wire that runs from the negative battery post to the chassis frame, and I run a grounding strap from the intake manifold to the firewall. I've taken umpteen amp readings on all of my electric circuits and that system works quite well. Many cars do it exactly that way, so it's not like I invented it.
