06-03-2019, 02:48 PM | #1 |
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Why change gap on Spark Plugs?
Hi All,
I will be getting new spark plugs soon after the vehicle is tuned. But I see people talking about gap-ing their spark plugs to .18. Can anyone explain why? Also what is the stock gap? Any info will be greatly appreciated. Thanks! |
06-03-2019, 06:02 PM | #2 |
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I think the stock plug is around .030" and I brought mine down to .020 for my stage 2 set up. The reason for a tighter gap on the plugs is when you make more power, you're burning more fuel and you need the spark to be smaller and more concentrated. See below:
A wide gap creates a longer spark arc but without sufficient "juice" from your ignition system, (including amps), can be weak. A small intense spark is MUCH better than a big, weak spark, especially when dealing with richer fuel mixtures and more volumes of fuel being burned. |
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FullThrottle33.00 |
06-03-2019, 06:19 PM | #3 | |
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OHHHHH, Awesome thanks, much appreciated brother!! |
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BMWDriverX365.50 |
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