Cascade Crew

Twilightoptics · Posted: Wed Jan 21, 2004 3:10 pm Post subject: MSD box not grounded, car runs?

Was thinking about my MSD box today, and reliazed that the last time I reconnected the battery, I didn't put the ground for the MSD box on.

But my car still runs, and pretty strong. Reconnected it and didn't notice any difference.

Is the box itself self grounding through the screws into the firewall????

WEIRD.
Shocked

90RSrocks · Posted: Wed Jan 21, 2004 3:44 pm Post subject:

It was grounded through your tounge. I told you not to lick it man, but do ya listen to me? nooo. Very Happy

Actually, I'm not sure what happened there. It should have created problems if it wasn't grounded, so it almost has to be grounded somehow.

PonchoTA

chevymad · Posted: Wed Jan 21, 2004 6:51 pm Post subject:

You have that grounded to your battery paul? Usually thats a good idea but with the msd box it really should be grounded to the motor. Spark energy is returning to the msd, at least some of it.

Twilightoptics · Posted: Thu Jan 22, 2004 11:02 am Post subject:

Would the big ground battery lead that goes to the motor be a better ground for it? They'd still be touching each other... IE motor has big wire to battery ground, ground wire on battery?

Is the positive on the battery okay?

I just followed the MSD instructions when I installed it Embarassed

Demon · Posted: Thu Jan 22, 2004 12:22 pm Post subject:

just attach it to the ground strap area on the block, or some other bolt if it suits you Surprised