Spark Plug Gapping

[jlach993]

Hey everyone,

Has anyone tried gapping their plugs to .50? I know factory is 0.40 for our engines. I know that a smaller gap tends to yield plugs that last longer at the cost of power and a larger gap gives more power at the cost of plug life. I don't really care about the plugs lasting another 100k miles. $80 and an hour to change em out is not a big deal for me. I wonder if it'll give a bit more power in the sense where i won't have to push my accelerator peddle as far down to maintain a certain speed as i currently have to. Any feedback from those well experienced with this topic is much appreciated. Thanks

 

[16FujiDisco]

Don’t these take iridium or platinum plugs? I didn’t think you you gap them anymore than what was set, but maybe you get a set that has a different gap and matches the thread pitch/length etc.

 

[jlach993]

Don’t these take iridium or platinum plugs? I didn’t think you you gap them anymore than what was set, but maybe you get a set that has a different gap and matches the thread pitch/length etc.

yikes...sounds like more trouble than its worth. Not trying to open a can of worms here haha

 

[greiswig]

I’m not sure I’ve ever seen a scientific basis for the claim that a wider gap would give you more power or fuel economy. I suppose it’s possible.

OTOH, I have seen cases where the gap being too wide caused problems like the spark finding a path through insulation, the coils being unhappy, and so forth.

 

[jlach993]

I’m not sure I’ve ever seen a scientific basis for the claim that a wider gap would give you more power or fuel economy. I suppose it’s possible.

OTOH, I have seen cases where the gap being too wide caused problems like the spark finding a path through insulation, the coils being unhappy, and so forth.

appreciate the input thanks