Redline2083 Posted April 10, 2010 Share Posted April 10, 2010 Hi need some help on gapping my spark plugs. I have a JDM Subaru Legacy B4 2.0 280hp, with the EJ20. Does anyone know the gapping for the plugs for this application. Its stock right now, gonna add some additional boost and upgrades to it, so i also want to know if the NGK Iridium bkr8eix is a good plug to use. Link to comment Share on other sites More sharing options...
testes1010 Posted April 10, 2010 Share Posted April 10, 2010 A standard gap would be between 0.028-0.030". Even at 24psi and 370whp I was only gapped at 0.026" Link to comment Share on other sites More sharing options...
Th3Franz Posted April 13, 2010 Share Posted April 13, 2010 NGK Iridiums are good. They come pregapped and have a delicate electrode, so you shouldn't have to touch the gapping. -Franz The end of a Legacy http://www.youtube.com/th3franz Link to comment Share on other sites More sharing options...
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