LT1-LT4 Modifications 1993-97 Gen II Small Block V8

spark coming off msd wire

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Old 09-06-2011, 09:36 PM
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Default spark coming off msd wire

Gonna get right to the point. Whenever I installed my msd box I noticed that a spark would come off the 5th spark plug wire n hit my header. Its clear as day u can litterlly see spark hitting my header. All my spark plus wires are good.

The car does miss and sputter while driving.
Old 09-06-2011, 09:44 PM
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Unless boost or nitrous are involved an ignition box is a wasted effort and will cause undo wear to ignition components.

Your problem is a bad wire, possible aggravated by a bad connection to the plug or a bad plug causing massive resistance that makes it easier for the arc to go through the wire.

Even on my car I see no benefit from an ignition box and it makes a pretty substantial amount of power for a little NA motor.

I will admit my first modification and major mistake with this thing was a expensive ignition system. The only thing it did for me was cause problems. The one I tried more recently after the car started making power just doesn't do anything, might actually slow the car .05 if it does anything atall.
Old 09-06-2011, 09:56 PM
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That wire is damaged most likey
Old 09-06-2011, 10:47 PM
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Another duplicate thread. What's going on?

https://ls1tech.com/forums/lt1-lt4-m...-msd-wire.html
Old 09-06-2011, 11:00 PM
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Damaged wire id say
Old 09-06-2011, 11:29 PM
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Damaged wired +5
Old 09-07-2011, 07:46 AM
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absolutly damaged miguel replace the wire.........also ive had issues with superconductors and hi power ignitions......i run moroso ultra 40's now
Old 09-07-2011, 08:45 AM
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Thanks for the info guys.
meh.. on the damaged wire. I replaced it the damaged wire all ready. My other guess would be the the spark plug wire is not fully making connection to the spark plug. Ill diagnose n up date. Thanks



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