Finally installed MSD on my car.

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  1. 383man

    383man Well-Known Member

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    Yes I got a good deal and an MSD 6A digital box. So I bought an MSD coil and installed and wired it up the other day. My old Mopar ign worked fine but with the MSD multispark at 3000 RPM and below I hope it will keep the plugs cleaner even longer. I could go all summer on the same plugs and rive and race on them. So it will be nice to see how it does as I have always planned on going to MSD when I got the money. Ron

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    • 383man

      383man Well-Known Member

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      • 383man

        383man Well-Known Member

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        • oldbee

          oldbee FBBO Gold Member FBBO Gold Member

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          Nice, let us know the outcome. I think you've got the best carb heat isolator ever made under that carb!
           
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          • Sahara

            Sahara FBBO Gold Member FBBO Gold Member

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            My best friend has a 6A on his hot 383. Loves it, runs fantastic.
            Ehrenberg says there’s no horsepower in ignition, and I agree with his logic, but I know my buddies car run like a top. May not be more powerful but it starts and runs perfectly.
             
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            • 1 Wild R/T

              1 Wild R/T FBBO Gold Member FBBO Gold Member

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              I've heard the "No Power in ignition" argument but I've also seen how much more completely an MSD burns a ragged mixture...

              Back in the early 80's I had an MSD 5C, my buddies T/A had a little more than the stock cam & the Sixpack didn't idle really cleanly... You had to slip the clutch pretty good to take off or it would stall.... I stuck my MSD on his car just to see if it would help... The improvement was immediate & profound... It would sit & idle beautifully, you could practically dump the clutch at idle & the car wouldn't stall, it would chug a couple times & pull away.... I never got my MSD back.... LOL..
               
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              • Sahara

                Sahara FBBO Gold Member FBBO Gold Member

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                Yeah, Ehrenberg was careful to explain that in a perfectly tuned engine there was no power to be made. But how many engines in the real world are perfectly tuned?
                 
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                • Tex013

                  Tex013 Well-Known Member

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                  Dragged kicking and screaming into the modern world at last Ron ?
                  :rofl::welcome:

                  You wont regret it . Never seen more power , but definatelly better start and idle

                  Tex
                   
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                  • 66Satellite47

                    66Satellite47 FBBO Gold Member FBBO Gold Member

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                    My switch to MSD (drag car) was from a Mopar Blue box to MSD 404BC. Due to concerns of reported MSD reliability I left the Blue box in & able to switch ignitions in 30 seconds. Mopar claimed the MSD was worth .05+ improvement in ET. Back to back testing with my car, the ET stayed the same, but .5 to 1 MPH increase. 6A should keep your plugs cleaner. You can increase the plug g ap a bit too.
                     
                    Last edited: May 8, 2020
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                    • 383man

                      383man Well-Known Member

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                      Thanks for the replies. My take on this is that if you have a good ign on your car then you will see no faster et going with MSD. But it should keep the plugs cleaner and fire worn or partly fouled plugs that a standard ign may not. When we took this same Mopar ign off my sons car and added MSD it did not run any faster and stared and idled the same. But I like the multispark and the fact it will fire plugs that other ign may not. I don't think my car will be any faster by why not run the best ign out there. I also just installed a Power Master 100 amp one wire alt and I like it. Its the one made from a factory Mopar alt so it looks stock and bolts right up with no mods. Ron
                       
                    • GetX'd

                      GetX'd Making Life Great Again!

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                      Ron can you tell me where you bought your 100 amp Powermaster alternator?
                       
                    • 383man

                      383man Well-Known Member

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                      Actually my son ordered it of the internet and it was delivered about 5 days later. I guess he went to the Power Master website ? Ron
                       
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                      • 383man

                        383man Well-Known Member

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                        Actually I was wrong he told me today he just got it off Summit's website. Ron
                         
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                        • Kern Dog

                          Kern Dog FBBO Gold Member FBBO Gold Member

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                          Ehrenberg....
                          Yeah, I can see his logic but there also is no horsepower in an engine that won't start. I've had random no spark episodes with my Charger despite having good grounds and well maintained parts. I've had ECUs fail, coils fail, ballasts fail....I am about to switch to an MSD setup as well.
                           
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                          • 66Satellite47

                            66Satellite47 FBBO Gold Member FBBO Gold Member

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                            IIRC part of the "possible" performance improvement that the MSD offers is the ability to run a larger plug gap, more spark length exposed to the mixture. True?? I'm convinced the MSD will fire a less than perfect mixture better than most other types.
                             
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                            • GetX'd

                              GetX'd Making Life Great Again!

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                              I was shopping for one and also found it on Summits site. Mission accomplished
                               
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                              • Dodge 330

                                Dodge 330 Well-Known Member

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                                I've ran analog 6AL's with Mopar electronic distributors for the last 25 years with zero issues. Just don't use the crappy connectors they send with the box, LOL!

                                I've added on things like dial adjust rev limiter and cockpit adjustable timing. My cars have always started INSTANTLY with these boxes.
                                 
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                                • Burns69RT

                                  Burns69RT Well-Known Member

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                                  I ran a full msd in my old 70 roadrunner with a healthy 440 when I had her. Msd pro billet dizzy with a 12 degree bushing and 2500rpm springs. Ran the digital 6al2 box with the 2-step and blaster SS coil. Started every time plugs were clean. Never hesitation. Double pumper on her and daily drover her.
                                   
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                                  • Burns69RT

                                    Burns69RT Well-Known Member

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                                    Also she was 38 degrees total timing. 12 mech and 26 initiation. Smooth from idle to 6k rpm
                                     
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