Spark plugs TOO cold?

[Neejay]

I need to change my injectors anyway, but I'm getting what appears to be spark plug blow out using BCPR6ES plugs. I gapped it at the recommended .8mm (.030) gap (per this board).

Mods:- Apexi Power Cone filter- FMIC- 3" Syko Turbo elbow- 3" SR Downpipe- Resonated 3" Test Pipe- Blitz Nur-Spec- Z32 fuel filter- Walbro 255- 12 psi- SARD Fuel pressure regulator

So since I need spark plugs anyway, I bought some BCPR7ES plugs (not installed yet). Are these too cold? Should I just buy the 6ES and lower the gap perhaps? or 7ES + same/lower gap?

EDIT: After MORE research, BCPR7ES @ .028 gap should be perfect. A lot of Skyline owners and other RB owners are running these spark plugs.

Also found the 2 possible causes of my problem: http://240atlanta.com/forums/s...nt=42

Modified by Neejay at 12:50 AM 1/23/2010
Modified by Neejay at 1:05 AM 1/24/2010

[Neejay]

BKR7E @ .028 was the solution. No more cut out, smooth power delivery.