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1,948 Posts
Discussion Starter #1
I had a quick question. I know that the recommended gapping
of the spark plugs for the zetec is .050". What would happen
if one were to gap them to lets say .053"? Any adverse
affects with doing this or is it pointless?
 

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Dragon Warrior
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309 Posts
i doubt you would see a problem or a benefit. That difference is negligable.
 

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25,627 Posts
You can open them up until they flame out and begin to miss. Many folks are running .060 and .065.
 

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557 Posts
i just opened mine up to .056 and noticed a small difference in the smoothness of the car at higher RPM's
 

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2focusedracing
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1,799 Posts
mine runs smoother at .060 & one step colder[:D]
 

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269 Posts
i have denso 0.4mm sparks would it make a big difference if i gapped them
 
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