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post #1 of 4 Old 11-16-2015, 03:25 AM Thread Starter
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1985 CJ7 
Join Date: Sep 2014
Location: Colbert
Posts: 39
Cj Msd 6AL

I just started a rebuild on my 85 CJ and i'm wondering if its worth the money to buy the MSD digital ignition system or just run a hotter coil and better distributor. Is there any real benefits or draw backs to the digital ignition box? If no real benefits to the box, what would yall suggest to do beside a team rush upgrade?

Wheel it, Break it, Fix it, Repeat.
85 CJ7 on 35s, my big green beautiful POS
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post #2 of 4 Old 11-16-2015, 05:38 AM
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1981 CJ7 
Join Date: May 2011
Location: Elbert
Posts: 22,581
Only you can decide if it's "worth it".

The benefits are a stronger more reliable ignition system. The OEM replacement boxes are junk.

There are no drawbacks that I have found.

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post #3 of 4 Old 11-16-2015, 06:32 AM
Shawn Watson
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1983 CJ7 
Join Date: May 2009
Location: Texas Hill Country
Posts: 7,628
Well here's the perfect "can-of-worms" thread for me to step into, lol. It's early though


Live in a way that those who know you but don't know God will come to know God because they know you.
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post #4 of 4 Old 11-16-2015, 06:41 AM
Mike Romain
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1986 CJ7 
Join Date: Nov 2007
Location: Off the Grid in Chester Grant
Posts: 18,083
I just disabled the ECU and added an Accel SuperCoil to fire champion copper cores via a brass terminal stock distributor cap back in 2000. I use the BBD carb and ported vacuum for timing also. It runs well, passes emissions and gave the 258 a stable 22 US mpg highway on ethanol free 91 or 92 octane gas, even better with the 4.0. Had better things to spend money on.

86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
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