looking for a good spark plug

[Carl H]

why do you need a 9 heatrange plug?thats WAAAAAAAAY too cold...i run 7's and i boost 22psi.

[Booztd 3]

I've never had any probs with running BKR7E's

They're about 1.50 a piece, and usually last about every oil change. Advance Auto Parts has had them in stock every time I go....

[Joe]

I just got ahold of BKR9E-IX plugs for my RB20DET. I had no idea they went above heat range 7 but I think they are being discontinued. I work at Napa and there are only 36 available throughout the COUNTRY.

holy **** 9?

do you understand how spark plugs work?

[RBKIDD]

so what the gap you put on those plugs at 22 psi

[Carl H]

.8mm and no hint of spark blowout.

[SullivanRacing06]

ive always run BKR7E copper ngk plugs.

[ErnGotti]

What you mean? The

holy **** 9?

do you understand how spark plugs work?

colder the heat range the deeper the reach. What else is there to know. I use the same .8 gap

[Carl H]

um no, a cold plug has a longer ceramic surround to the center eletrode to conduct more heat to the cylinder head and out of the combustion chamber.hotter has shorter wells.

What you mean? The colder the heat range the deeper the reach. What else is there to know. I use the same .8 gap

[johnzm]

you will foul out those 9's pretty quickly if your not foot in the pedal.

i ran 9's on my high comp allmotor and they worked wonderfully for that purpose.

but i am running 7's currently. i ask for n/a 300zx plug (a 6) then search the shelves for 7 of the same model

[cory_cnx]

if i buy the 7iex-11 do i have to gap them