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Ignition question

1968RRTEXAS

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Does the Msd 6a or similar electronic ignition boxes replace the electronic conversion ignition?
 
The msd box replaces your ignition system. It hooks to your battery, a keyed 12v and your coil. The old ballast resistors and everything else aren't used anymore.
 
The MSD's work very well. No change in distributor needed, but use the correct coil. For street use may not be needed, but couldn't hurt.
 
a simpler ignition solution for a street car is FBO's ecu with the rev limiter. this unit gives a full 12 volts to the coil and bypasses the ballast. very simple install and it's cheaper. also, a stock type ecu can be carried in the trunk if by chance something goes wrong on the road; an advantage over the msd. i'm running one in my '65 coronet and hope to get another for my 69 r/t.
 
Lewtot184, your incorrect in saying something. While the MSD does indeed replace the entire ignition system, you can leave the entire Mopar ignition hooked up in the car. It can be ready at a moments notice should the MSD fail via unplugging the distributor from the MSD and plugging into the OE system.

I KNOW this because this is exactly what I have done due to the worlds most bad experience with MSD. 6 boxes in a row non lasting more than a month.
Now don't go to this comment that I have no idea what I'm doing since not only are the instructions simple enough to follow and all the recommended parts were used but I have also a MSD 6A box last me 20 years. Hooked up & installed in the exact same way as the batch of bad boxes I have gotten.

When one of the bad boxes failed, it was as I described above. Unplug it from the MSD and plug it into the OE system. Off and running again in minutes.

Do I think the box is worth anything? Yes on a stock or lightly modified engine for driving and mileage purposes.

The FBO box is worth looking into.
 
Good morning, happy independence day. Thank you all for your input. I have decided to keep my current ignition.
 
Lewtot184, your incorrect in saying something. While the MSD does indeed replace the entire ignition system, you can leave the entire Mopar ignition hooked up in the car. It can be ready at a moments notice should the MSD fail via unplugging the distributor from the MSD and plugging into the OE system.

I KNOW this because this is exactly what I have done due to the worlds most bad experience with MSD. 6 boxes in a row non lasting more than a month.
Now don't go to this comment that I have no idea what I'm doing since not only are the instructions simple enough to follow and all the recommended parts were used but I have also a MSD 6A box last me 20 years. Hooked up & installed in the exact same way as the batch of bad boxes I have gotten.

When one of the bad boxes failed, it was as I described above. Unplug it from the MSD and plug it into the OE system. Off and running again in minutes.

Do I think the box is worth anything? Yes on a stock or lightly modified engine for driving and mileage purposes.

The FBO box is worth looking into.
slicing hairs? i never said you couldn't leave the mopar stuff dangling.
 
OK, I'll slice hairs! LMAO

You never said you could ether!

LMAO!!!
 
I agree with lewtot184, if you go to the MSD it sure doesn't hurt to have a backup system. "Back in the day" MSD systems were not considered all that reliable. However I ran an early MSD 404 BC for over 10 years in my drag car, no problems. But I also had either a Blue Box or another 404 BC in the car ready to plug in. I think the modern MSD stuff must be pretty reliable or they couldn't dominate the market.
 
No sir, from Summit at first and then every repair was dealing direct with MSD.
 
Thanks for the help in trouble shooting BUT the issue is in the ignition box and its terrible repair work.

It is also a old issue. Years old. Many years old. I gave up on that box and installed the one good 6A box I have and have not had a problem since I installed the good box.

My bad experience with the bad MSD box and its poor repair work has lead me to leave the upgraded for '79 MP ignition in the car and in working order.
 
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