Plug Gap
05-30-2005, 11:56 AM
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Plug Gap
I need to know the plug gap for some TR55s [one range colder than stock], with the Delco Ignition and Accel Aftermarket [DIS] Coils.
-justin
-justin
05-30-2005, 04:49 PM
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On your car go with .060
.055 or so would be for the SC'd guys.... Us NA'd guys need to stick with the .060
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.055 or so would be for the SC'd guys.... Us NA'd guys need to stick with the .060
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05-30-2005, 05:23 PM
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Hmm.. that'* interesting. No wonder my car wouldn't fire with .055" gap, but did a little better with .060." But then actually started with the old rusted *** plugs. Amazing isn't it? How old plugs can go through so much ****, and still work, but new one'* can't hold up to the heat?
-justin
-justin
05-31-2005, 10:23 AM
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Originally Posted by alec_b
Shoot mine ran with .040 gap until i checked it. Doesn't run any different with .055. But that'* recommended so i'll stick with it.
I'm forgetting....
All NA'd 3800'* should have the .060 plug gap....
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05-31-2005, 01:31 PM
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Well i'm running the .05-.055 gap with the magnavox and it seems to run a little smoother than with the .040 gap previously. Could all be in my head though.
05-31-2005, 03:37 PM
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Well I know that opening the gap will tend to retard the spark slightly (no idea how much) and require a hotter spark to fire so the gap will make a difference.
That said, I would not trust the Magnavox over .045" but that is personal. YMMV.
That said, I would not trust the Magnavox over .045" but that is personal. YMMV.
05-31-2005, 04:19 PM
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I had mine at .060" and I had a really shitty spark [at the coils, not plugs].
If you say that a larger gap retards the spark, does a smaller one advance it? What if I were to gap my TR55s at .045" and cut the tip off [exposing the electrode]? Would that make a difference in anything?
*NOTE* I know exposing the electrode decreases the life of the spark plug significantly, but it'* all in the name of power.. and besides how many miles could it kill off one? They seem to 'work' forever in a properly running engine. My old ones are a testimate to that.
-justin
If you say that a larger gap retards the spark, does a smaller one advance it? What if I were to gap my TR55s at .045" and cut the tip off [exposing the electrode]? Would that make a difference in anything?
*NOTE* I know exposing the electrode decreases the life of the spark plug significantly, but it'* all in the name of power.. and besides how many miles could it kill off one? They seem to 'work' forever in a properly running engine. My old ones are a testimate to that.
-justin
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