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Re: Issues with MSD 6al digital
[Re: D-50]
#2197261
11/16/16 11:01 AM
11/16/16 11:01 AM
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Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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I run a MSD digital 6 box and it has worked perfect for the last 5 years. Good to hear. However, the digital 6 box has had some issues on a fairly regular basis since its introduction. At one point I thought that it would be the perfect replacement from my old Crane HI-6, but gave up on that idea when I kept hearing complaints years after whatever the problem(s) is should have been fixed, IMO.
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Re: Issues with MSD 6al digital
[Re: GY3]
#2197293
11/16/16 12:30 PM
11/16/16 12:30 PM
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Joined: Jan 2003
Posts: 8,021
Tulsa OK
Bad340fish
master
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master
Joined: Jan 2003
Posts: 8,021
Tulsa OK
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I had a digital 6 with a high end miss. Swapping in another box fixed the problem. I had MSD test it on Drag Week since I carried it as a spare and it would bridge a huge gap at massive RPM with no trouble, but in high gear it always cut out, swap in the other digital 6 and the problem was gone. The good digital 6 caught fire on me the next year on drag week and I had to swap it the high end miss box to finish the week.....so I am done with those lol.
68 Barracuda Formula S 340
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Re: Issues with MSD 6al digital
[Re: GY3]
#2197302
11/16/16 12:44 PM
11/16/16 12:44 PM
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Joined: Jan 2003
Posts: 13,354
Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,354
Marion, South Carolina [><]
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I replaced my old analog 6AL back in 2003 w/ a Digital 6 and it had a high end misfire. Sent back to Summit and they sent me a new one...same thing. Swapped my old 6AL back in and the problem went away. Got a refund from Summit. I'm still running the old 6AL.
I keep resisting the urge to go w/ one of the new programmable 6AL-2 boxes.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: Issues with MSD 6al digital
[Re: an8sec70cuda]
#2197354
11/16/16 03:04 PM
11/16/16 03:04 PM
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Joined: Dec 2013
Posts: 4,664
Wichita
GY3
OP
master
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OP
master
Joined: Dec 2013
Posts: 4,664
Wichita
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I replaced my old analog 6AL back in 2003 w/ a Digital 6 and it had a high end misfire. Sent back to Summit and they sent me a new one...same thing. Swapped my old 6AL back in and the problem went away. Got a refund from Summit. I'm still running the old 6AL.
I keep resisting the urge to go w/ one of the new programmable 6AL-2 boxes. I wonder how much time has been wasted by people trying to figure out misfires when it's a faulty box?! A neighbor bought aftermarket MSD stuff for his LS Turbo in his Chevelle. He said the same thing about tech support. Worthless! He and a few members of another forum have had to figure it out baseline settings for themselves by trial and error and then share it with other members.
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Re: Issues with MSD 6al digital
[Re: GY3]
#2197410
11/16/16 05:00 PM
11/16/16 05:00 PM
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Joined: Jan 2003
Posts: 8,021
Tulsa OK
Bad340fish
master
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master
Joined: Jan 2003
Posts: 8,021
Tulsa OK
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I spent a ton of time chasing down that high end miss, new cap, different distributor. Rewired it more than once etc etc.
When I ran out of good MSD parts It was the tipping point to go EFI and coil on plug. My carb was old and needed parts and I had no ignition parts left, so I made the plunge.
68 Barracuda Formula S 340
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Re: Issues with MSD 6al digital
[Re: GY3]
#2197451
11/16/16 05:56 PM
11/16/16 05:56 PM
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Joined: Nov 2004
Posts: 6,890
North Alabama
Monte_Smith
master
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master
Joined: Nov 2004
Posts: 6,890
North Alabama
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I replaced my old analog 6AL back in 2003 w/ a Digital 6 and it had a high end misfire. Sent back to Summit and they sent me a new one...same thing. Swapped my old 6AL back in and the problem went away. Got a refund from Summit. I'm still running the old 6AL.
I keep resisting the urge to go w/ one of the new programmable 6AL-2 boxes. I wonder how much time has been wasted by people trying to figure out misfires when it's a faulty box?! A neighbor bought aftermarket MSD stuff for his LS Turbo in his Chevelle. He said the same thing about tech support. Worthless! He and a few members of another forum have had to figure it out baseline settings for themselves by trial and error and then share it with other members. May not have been the box. Likely the polarity. Digital and analog fire on the opposite sides of the wave. So correctly wired for one is backwards for the other on the trigger side. Color to color, or how it says in the instructions is not always correct, as I have seen both boxes and triggers from various sources wired backwards. When you encounter a run problem.......ALWAYS swap the trigger wires to see if it helps. Guys can talk all the trash they want about MSD, but they are likely on 75% or more of race and street cars and the failure rate is VERY small. What you gonna buy that's better?
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Re: Issues with MSD 6al digital
[Re: Monte_Smith]
#2197453
11/16/16 06:02 PM
11/16/16 06:02 PM
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Joined: Dec 2013
Posts: 4,664
Wichita
GY3
OP
master
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OP
master
Joined: Dec 2013
Posts: 4,664
Wichita
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Cy I replaced my old analog 6AL back in 2003 w/ a Digital 6 and it had a high end misfire. Sent back to Summit and they sent me a new one...same thing. Swapped my old 6AL back in and the problem went away. Got a refund from Summit. I'm still running the old 6AL.
I keep resisting the urge to go w/ one of the new programmable 6AL-2 boxes. I wonder how much time has been wasted by people trying to figure out misfires when it's a faulty box?! A neighbor bought aftermarket MSD stuff for his LS Turbo in his Chevelle. He said the same thing about tech support. Worthless! He and a few members of another forum have had to figure it out baseline settings for themselves by trial and error and then share it with other members. May not have been the box. Likely the polarity. Digital and analog fire on the opposite sides of the wave. So correctly wired for one is backwards for the other on the trigger side. Color to color, or how it says in the instructions is not always correct, as I have seen both boxes and triggers from various sources wired backwards. When you encounter a run problem.......ALWAYS swap the trigger wires to see if it helps. Guys can talk all the trash they want about MSD, but they are likely on 75% or more of race and street cars and the failure rate is VERY small. What you gonna buy that's better? Nope, tried swapping trigger wires too.
'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.
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