What spark plugs are you running? Platinum or iridium?
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The NGK Iridium 2668 is a popular choice in the FI crowd, they are 8's so one heat range colder. I've got about 60k on mine so far. I haven’t felt the need to use anything else. The stock NGK platinum’s are great plugs for N/A. Just remember what ever you get, make sure they are resister type plugs. There are some common interference electrical issues when using a standard non resistor plug. And just make sure your plugs are gapped for your HP level to get the best performance.
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The NGK Iridium 2668 is a popular choice in the FI crowd, they are 8's so one heat range colder. I've got about 60k on mine so far. I haven’t felt the need to use anything else. The stock NGK platinum’s are great plugs for N/A. Just remember what ever you get, make sure they are resister type plugs. There are some common interference electrical issues when using a standard non resistor plug. And just make sure your plugs are gapped for your HP level to get the best performance.
^^
this... iridiums are colder plugs that's why I run em on my STi(most FI set ups do).. for NA ap1, I stick with the platniums..
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iridium arent colder by nature. a heat range 8 is an 8. a heat range 6 is a 6 regardless of copper or iridium.
for those that dont know, the higher the number the colder the plug with NGK's not sure about other brands though.
for those that dont know, the higher the number the colder the plug with NGK's not sure about other brands though.
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