Sparkplugs

[Arnout]

What sparkplugs are you guys using with some boosted applications? Do you go one or two ranges colder or stay the same? Also do you go 'back' to copper or go with irridium or platinum?

 

[cribbj]

I ran IK22 Iridiums on the last boosted UZ, and plan to give IK24's a try this time.

For the 2JZ-GTE motor presently in my Supra I run IK22's, but it rarely sees high boost.

 

[Arnout]

I'm staying away from IK22 and IK24 for the 2jz on high boost. I broke a sparkplug twice and it killed a piston a valve and the turbine shaft of the turbo. For supras I use just the regular copper plugs.
Just wondering what to put in some boosted V8 (1UZ) applications

 

[-Nemesis-]

Did you check this Sticky out mate?

http://lextreme.com/forums/showthread.php?t=4240

I've been running the cheapy BKR7E NGK Part no. 6097 for 12 months with no dramas, running 10psi and LPG injection.