spark plugs?

[tromspert]

Hey guys I have a 2j swap that's na-t in my mk3 and was wondering what spark plugs you guys usually use? who has the best numbers and performance with them?
thanks in advance

 

[KKZ SupraMan]

7m electronics or 2jzge or 2jzgte

 

[tromspert]

7m electronics or 2jzge or 2jzgte

7m electronics, sorry if that makes a difference.

 

[hvyman]

Ngk coppers part number 4644.

Engine or harness doesn't really matter.

 

[tromspert]

Ngk coppers part number 4644.

Engine or harness doesn't really matter.

Copper? I was thinking I'd see platinum or something haha. Good to know. Any reason why?

 

[suprahero]

I too have used the NGK 4644's for the last six or seven years at about 600rwhp.

 

[figgie]

Off the spark plug material available, Copper is the best electrical conductor for spark plugs. They also move heat fast.

Iridium, any other *ium based plugs are a waste of $.

The K.I.S.S does apply to these cars

 

[tromspert]

awesome guys, thank you so much for the info.

 

[MarkIII4Me]

In my experience I find that Iridium's and Double Platinum plugs are standard equipment on vehicle's where the intake plenum needs to be removed in order to service them. We're talking 3+ hours book time. So the manufacturers use these expensive plugs, (NGK Lasers anyone?), because they last an average of 90k-120k miles. Not because they are good conductors. For the most part, our plugs are relatively easy to get to. Very easy if you have coil on plugs and an FFIM. Either way, go with coppers.