NGK Iridium spark plugs?

[lv240s14]

whats the part number for the NGK Iridium spark plugs? heat range should be 7 or 8 .i see them for sale on phase2 but i would rather just go pick them up from my local parts store.

[emersonLP]

BKR7EIX I believe. or change the 7 to an 8 if you really want heat range 8.

[dopeyx27]

sorry to high jack your thread but what heat range would be good for KA-T?

[lv240s14]

BKR7EIX I believe. or change the 7 to an 8 if you really want heat range 8.
anyone second this to be correct?
they say 7 is for a turbo car with some hp and they say 8 is for a turbo car with alot of hp at least that is what it says on websites....

[420sx]

6 and 7. 6 for lower boost, 7 for higher

[Crono562]

The general rule at least in NGKs is the higher the number the cooler the spark. 6 is good for stock sr. As you raise boost you are gonna want to run a cooler plug in order to avoid knock. I know some fully built/high boost sr's run 8 or 9 even.

I ran 6's on my sr when it was stock, with a fmic and t28 tuned to 1 bar (injectors and z32 maf) i run 7's

[lv240s14]

BKR7EIX I believe. or change the 7 to an 8 if you really want heat range 8.
back on track is this the right part number?

[emoximuu]

It is i have a box of 4 new ones right in front of me. Stock number 3764 tha should make it real easy.

[MadScientist]

I was a sucker and paid for the Nismo S-Tune Iridium Plugs (NGK) Heat Range 7
NGK Part # t7340n-7
Nismo #22401-RN010-7

Fits:
SR20DE(T)
KA24DE
VQ30DET
VG30DETT
RB26DETT
RB25DET

Note: this is off the back of a Nismo Japan box so US #s may differ!!!

Peace
Drew

[TEALSQUEAL]

iridium is junk stick to coppers unless you are into wasting money... just use NGK 7's

[O3DigitalBath]

The general rule at least in NGKs is the higher the number the cooler the spark. 6 is good for stock sr. As you raise boost you are gonna want to run a cooler plug in order to avoid knock. I know some fully built/high boost sr's run 8 or 9 even.


as far as I know with all NGK plugs the higher the colder (opposite from most other plug company's number break down)

but talk of 9's?? there is such a thing as too cold of a plug, in most cases a 7 should be fine for anyone on here.

[lv240s14]

iridium is junk stick to coppers unless you are into wasting money... just use NGK 7's
i have to ask why do you say this?

[lv240s14]

i have to ask why do you say this?
anyone else tell me why they suck?

[GSXRJJordan]

First off, the "spark" is not smaller/colder/whatever on cooler heat range plugs. All it means is the plug is designed to remove more heat from the combustion chamber. Changing spark plugs, just like changing your a/f ratio, is a way to control heat in the combustion chamber - and like all good tuners will tell you, keeping the cylinder temps in check is the key to a good motor.

Heat range 7 is ideal for 99% of the car's you'll see. Some F-D and D1 cars run 8, 9, or even 10 (I ran Greddy 9s *$$$* in the F-D car I worked on, and have found other drivers with 9s or 10s when I went looking for spares). Doesn't make them better, just a necessity when running 30psi.

Iridium is considered a compromise between the amazing life of platinum and the great performance of copper. Copper plugs spark just as well (sometimes better, especially if your A/F is off), and cost a fraction of iridium. Sad thing is they don't last as long. They come in the same heat ranges/etc, so swapping copper for iridium plugs and vice versa is as easy as comparing heat ranges on the box.

Whew... there, zilvia is schooled. Enjoy.