I honestly don't know the part number. here is my "expert" advice.....

Call your local autoparts store...autozone, O'reileys, whoever. Tell them your vehicle...ask them for a spark plug that is one range colder and COPPER...cheapest available.

Here's the reason why: You will change plugs frequently (or should at least) to prevent any problems from sheened plugs and to keep track of each cylinders operating dynamics. Copper plugs will be about $1.50 a piece and work just as well as any other plug on the market. Don't be fooled by gimmick plugs and DONT USE PLATINUM OR IRIDIUM ON NITROUS!! The tips don't dissipate heat as well as standard copper plugs will. this will cause a plug to melt, destroy it'self and take your valves/head/motor with it.

 

I never knew that about platinum plugs. I have run nitrous on platinum plugs before. I guess I have been lucky.

 

2.0L rods are like champagne glasses....not "ours"....*sigh*...1.6ers..the red-headed step child of the 3rd gen protege...but we gots stonger rodz yo!

 

I don't use Nitrous, I think I was seeing posts regarding using the 1.6L plugs in the 2.0L. If there's nothing to be gained I'll stick with what works. So should I go "one colder" on the plugs, like Spinal Taps "One louder" amps?

 

The amps go to 11.....why 11? ....cause it's one louder than 10.

Another great spark plug trick is to "index" your plugs in the head. This is a dyno-proven method of increasing power and driveability. Basically you use washers as shims to aim the exposed electrode at the intake valve so the air/fuel mix doesn't bounce off the diode tip before getting ignited. This way the mis is dropped right in the spark.

I did this on my turbo pinto running 9psi and gained 4whp just from pointing the spark plugs in the right direction. I can't say what the gains would be on a NA motor with minimal mods but I know NASCAR uses this trick.

 

Any more info on how to index?

 

buy indexing washers at an autoparts store...mark the top of the plug so you'll know when it's facing the intake mani...tighten it down until it's lined-up...i think that's how it works.

 

What if you cannot see the top of the plug?