SaintJah

I heard the Bosch 4 point platinum plugs are great performance plugs? Is this true or are there better plugs i shoud install in my S?

Virus

This ought to be good...

SaintJah

No ideas? I am not sure what to use so thats why i am here asking people who actually know about the S2K instead of the loosers in those race shops all tryin to press their own brands.

Virus

First of all, we don't have spark plug wires.

If I may speak for the majority of the members here, we install Denso Iridium IK24's...especially if boosting.

Here's a quick reference of plug heat ranges:

IK22 = OEM heat range
IK24 = 1 step colder
IK27 = 2 steps colder

http://www.densoiridium.com/index.php?flash=1

You may also want to use this often:

Dan

KYS2000

I use denso IK 24's boosting also, we have coil-on ignition, take off your spark plug cover and you will see that each spark plug has each their own coils, no need for plug wires

SaintJah

I am a noob, sorry i have to ask, but what is boosting?

fly_S2K

Forced Induction. ie Turbo or supercharger

xviper

Actually, I've been using the stock Denso Platinum plugs (re-gapped to narrower space) on my S/C. They've been working quite well. I will be trying the NGK racing plugs (one step colder) but I really doubt I will feel any difference.
As for an otherwise stock engine, the stock plugs work very well. Sure, I've heard some people say that they can "feel" the difference going to the Iridium plugs, but I've also heard just as many who tried them and felt no difference, so why mess with a good thing only to pay more money?
I remember a post here a while ago from someone who indicated that the Bosch4 could actually damage this engine. They have shown to do wonders on some applications but they also cause problems with others.

imsport

Bosch spark plug does not work with Honda and most Jap. cars. Could set misfire DTC due to insufficient heat range.

RCR S2

I use NGK copper racing plugs to get a larger spark (Better for SC and Nitrous). They are relatively inexpensive compared to platinum and Iridium, but you have to change them more often. I change mine once a month.