When I
first installed the NGK's, I set the gap @0.034 inch.
To my disappointment, I did not notice any
power increase except for what felt like a minor mid range improvement.After two weeks of service, I
removed the plugs to check if the heat rang was hot enough, and sure enough the plug electrodes were
nice and clean signifying that 7 is a good heat range for 13 psi boost. Just look at the old factory
platinum plugs and how they were possibly too cold of a plug from the beginning..
After the
inspection, I then re-gap'ed the plugs to 0.048 inch.
Since then, gas mileage has improved and
all around power is definitely noticeable by me the daily driver.
I have recently ran a 1/4 mile with
my G-Tech, and I am avaraging a couple tenths of a second quicker now. But who knows. It could be due
to anything...
