Originally Posted by Charles Lavoie


BR6ES = Stock to 20psi
BR7ES = 20psi to 30psi
BR8ES = 30+psi



That would be my suggestion.

As mentioned earlier, the stock gap is .028, if the car is not stock then that value is irrelevant.

I personally run mine at .022 with no misfire at 35 psi on stock coils and NGK oem replacement wires.

I would suggest getting a set of feeler gauges, those round plug gauges are not that accurate, not a huge deal with lower boost but when you get up in the higher power levels you want to maintain consistency between cylinders


1997 Eclipse GST - AWD swapped - TPC - GT Spec powered
2023 - 9.63 - 145mph