Artizan Posted July 14, 2020 Share Posted July 14, 2020 My car is '08, but it had an ej257 swapped in by previous owner. Also has a custom tune on it. Manual if that matters. What spark plug gap do I need? Can't find any concrete info on this even after searching. SILFR6A that I bought are gapped at .032 Link to comment Share on other sites More sharing options...
ttnio Posted July 14, 2020 Share Posted July 14, 2020 i gap mine at .030. Link to comment Share on other sites More sharing options...
Max Capacity Posted July 14, 2020 Share Posted July 14, 2020 .028" You don't want boost blowing out the spark. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
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