Spark plug for R33 GTS25T

[Guilt-Toy]

I got a r33

3"

t4

filter

cold air induction

I want to know what spark plugs to use with it.

Whats the cheapest plug and a better plug that you can get from any spare parts shop?

[SilvaR33]

NGK Iridium plugs....not the cheapest but probably the best for your setup, approx $20.00 each

Regular NGK's regapped to 1.05 mm are good enough for stock GTS-T's, approx $4.95 each.

[Guilt-Toy]

what model iridium?

[benm]

/dumb question..

how often would you change spark plugs?

I know mine have done 17,000km and the car absolutely purrrrs

I have never checked them (never knew how to until recently) and the car puts out a nice amount of power for fairly basic mods (203rwkw).

/end dumb question

[Guilt-Toy]

170,000 km mate

That would be why... Anyone got any idea what brand / type / model number plugs to use??

[rev210]

muck around with some coppers first to get the heat range and gaps right.

then get your platinums.

[DJ_L3ThAL]

i got ngk platinums, they are very nice

[rev210]

I'm running NGK BCPR7ES-11's with 0.9mm gap. Stock turbo & 10psi. Works better than the 6's.

The best plug for you is the one with the right heat range and gap. This you will find by trial and error.

The longest lasting plug is the platinum variety, as long as you have done the homework (see above) otherwise they are a waste of money.

[Guilt-Toy]

whats a good copper one to use then ?

7ES11 ??

[SilvaR33]

The model rev210 is talking about is good but I think there is an Iridium model that does not have the -11 extension. Some say Iridiums are the best, i.e. durable, they last about 50,000Km before changing. But each car setup is different and u will need regapping. I'll find out exact model number and let u know.

[Guest gtst88]

what do you guys think of Denso Iridium spark plugs ? are they different from NGK ones ?