Spark Plugs

[ZOOTV]

Good Evening Guys,

I need new spark plugs and my car has an otrcai and full 3" exhaust. As the the car is slightly modified how do I determine what spark plugs to choose. I know someone here could easily tell me which ones but what determines which spark plugs to use?

 

[uniacidz]

Unless heavily modified, stock plugs AcDelco will be fine

 

[Ivan Aguiar]

hi.

Last week I've changed for Bosch new ones. Here in Brazil it was cheaper than AC Delco. It's worth and is working well.


http://mlb-s2-p.mlstatic.com/vela-b...rios-outros-20935-MLB20201749851_112014-F.jpg

 

[vr304]

Or NGK iridiums

 

[petern64]

I put NGK iridiums my VZ SS 40,000K's ago with new leads , never missed a beat yet !

 

[ZOOTV]

I was thinking TR55IX NGK Plugs?

 

[Drewie]

I changed the original plugs in my VX SS which I have had from new at 80,000 km, the original plugs in my VX were Platinum plugs Denso PTJ16R15 and they looked fine at 80,000 km, Holden changed to Iridium somewhere in the VY range, I was told it was more to do with emissions more than any thing else, the workshop that changed them at the 80,000 km service which is a workshop that prepares a lot of LS powered race cars and is a performance workshop used conventional copper cored plugs
NGK BPR6EF, which were one of the specified Holden plugs on the LS1's in the original LS1 powered VT's. The NGK plugs have been in for around 10,000km and seem ok, the reason the workshop used them was that they said on the dyno they found they were getting a little more power from the conventional copper cored plugs. Only problem is they need changing more often, I will probably go back to the Platinum or Irridium next time to save the labour cost in changing them more often.

 

[Caprice383]

NGK TR6 are good and pretty cheap.

 

[st3r3otyp3]

NGK copper TR6.